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Hire the best Oracle Performance Tuning specialists

Check out Oracle Performance Tuning specialists with the skills you need for your next job.
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  4. (Current) Oracle Performance Tuning Specialists
  • $80 hourly

    • 4.7/5
    • (84 jobs)
    Hi, I am Data Architect/Snr. Data Engineer with 10 years experience with RDBMS/NoSQL databases and processing large amounts of data. My experience related to Enterprise level/High profile projects in the past, but now I'm helping alot startups and small-mid sized companies. My core competences are : Data Modelling, Data Architecture on Cloud platforms, Database development, ETL and Business Intelligence, Database Administration Modelling of OLTP and Datawarehouse systems. It could be design of new schema, normalization/denormalization of existing model, Enterprise datawarehouse design based on Kimball/Inmon, Data Lake and Data Vault architectures, Modernization of existing Datamodel(s). DBA Activities - DB migrations, Backup & Recovery, Upgrades, Instance configurations, DB Monitoring, Horizontal scaling, Streaming/BDR replications. Sharding with postgreSQL extensions. Data Integration and ETL : Traditional batch ETL - Informatica, Talend, AWS Datapipeline, Matillion ETL Serverless ETL - AWS Lambda, Glue, Batch, AWS DMS, Google Cloud Functions Streaming ETL - Apache NiFi, Kafka, Kinesis streams SaaS ETL - Stitch, Alooma, Fivetran Direct loading with DBMS tools & scripting Building BI layer with Crystal reports , Tableau/QlickSense or other modern BI SaaS tool. Cloud containerization and deployment : Docker, Mesos/Kubernetes Java development : EE/SE , Spring, Hibernate, RESTful APIs, Maven Clouds : - Cloud migrations (AWS, Azure, GCP) - Cloud infrastructures (VPCs, EC2, Loadbalancing, Autoscaling, Security in AWS/GCP/Azure) - Processing in EMR Hadoop/HDInsight/Azure DF/Google PubSub - Athena, DynamoDB/Cosmos DB, Amazon Aurora - Development & Administration of RDS/Azure SQL/GCP databases - Building Analytics Solutions in Amazon Redshift/Azure PDW/Google Bigquery/Snowflake with End-to-End BI implementations Thank you for getting to the end of this boring details and looking forward working on exciting projects together :) Best Regards, Yegor.
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    Amazon EC2
    Amazon Web Services
    Oracle PLSQL
    Tableau
    Oracle Administration
    Amazon RDS
    ETL
    Amazon Redshift
    PostgreSQL Programming
  • $70 hourly

    • 4.8/5
    • (97 jobs)
    My extensive experience in Cloud,Database and CyberSecurity over the past years include the following: 1). CISSP; Information security, Cybersecurity,Compliance 2) Information Security/Vulnerability Testing 3). Oracle Performance Tuning 4). EBS R12 applications 5). Oracle Database technologies, SQL tuning,flashback, RMAN, RAC and others 6). Database System Security Scans and Vulnerability testing 7). Oracle Certified Professional 10g and 11g, 12c 9). Oracle Certified Database Security Implementation 10) AWS Solutions/Administration/EC2/S3/Cloud 11). HiTRust Aware/PCI DSS Aware 12). Microsoft Certified: Azure Fundamentals Please let me know if you have any questions.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    PCI
    Data Protection
    Oracle Database Administration
    Linux System Administration
    Security Operation Center
    Security Engineering
    Oracle Database
    Information Security Governance
    Certified Information Security Manager
    PCI DSS
    Security Infrastructure
    Database Administration
    Network Penetration Testing
    Information Security
  • $25 hourly

    • 5.0/5
    • (20 jobs)
    Oracle : - Having rich experience in Oracle Database Installation, upgrades. - install and setup high availability e.g. RAC , DG , GG - Rich experience in migration from one platform to another .\ - Rich experience in migration from on-prem to AWS/Oracle cloud . - Experience in AWS DMS - Setup the backup and recovery standards. - DB and query tunning. - troubleshoot performance issues - Automation using shell/batch/python scripting - debugging users issues . - Automate repetitive task using python/shell/batch script. - Having fair hands on automation using Ansible for Oracle DBA repetitive task. Migration: =========== - Oracle EE/SE to postgres AWS RDS using AWS SCT & DMS services - Oracle EE/SE to Oracle Cloud using datapump. - Oracle EE/SE to MariaDB using Goldengate. - Migration from one platform to another platform Automation: good in shell scripting , batch , python and ansible. recently completed oracle grid and rdbms installation automation using Ansible . Good experience in upgrades and performance tunning. Experience DBA devops and automation expertise. Postgres : ======= - Installation, upgrade minor and major - AWS Auroa RDA - postgres - troubleshooting - performance analysis -
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Performance Optimization
    Cloud Migration
    Oracle Database Administration
    Oracle Data Guard
    Oracle Upgrade
    Oracle RAC
    Amazon RDS
    Linux
    Database Administration
  • $60 hourly

    • 5.0/5
    • (66 jobs)
    I am a certified professional with unique skillset and profound knowledge of DBA, Solution Architecture, SysOps and DevOps. With over 10 years of hands-on experience, I am designing, building, managing and optimizing various databases and environments for Startups, SMBs and Fortune 100 Enterprises from different industries. Reviews have it! ✅ DBA Expertise: 𝐃𝐁 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Oracle 9i, 10g, 11g, 12c - 19c on premise and in Cloud, MS SQL, PostgreSQL, MySQL, SQL Server, and more. 𝐂𝐥𝐮𝐬𝐭𝐞𝐫𝐰𝐚𝐫𝐞: Automatic Storage Management (ASM), Real Application Clusters (RAC) 𝐎𝐫𝐚𝐜𝐥𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Exadata, ZDLRA, Exalogic, ODA 𝐌𝐢𝐝𝐝𝐥𝐞𝐰𝐚𝐫𝐞 𝐚𝐧𝐝 𝐄𝐑𝐏 𝐚𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: NetSuite, Oracle E-Business Suite, Weblogic Server, Apache Tomcat, Glassfish, OBIEE, Discoverer, Fusion Middleware, OAM/IDM 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐜𝐥𝐚𝐬𝐬 𝐁𝐚𝐜𝐤𝐮𝐩, 𝐑𝐞𝐜𝐨𝐯𝐞𝐫𝐲 𝐚𝐧𝐝 𝐑𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: RMAN, Dataguard, Golden Gate 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐒𝐜𝐫𝐢𝐩𝐭𝐢𝐧𝐠, 𝐚𝐧𝐝 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: bash, SQL, PL/SQL, Python 𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Oracle Cloud, AWS, Azure 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Unix and Linux, Windows (on premise or in Cloud) ✅ DevOps, SysOps Expertise: 𝐒𝐲𝐬𝐭𝐞𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: Scalable, secure, and highly available designs tailored to business needs. 𝐒𝐲𝐬𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: Managing virtual machines, containers, storage, backup, migration, networking, and databases. 𝐃𝐞𝐯𝐎𝐩𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: CI/CD, infrastructure as code (IaC), tools like Jenkins, GitLab CI/CD, Azure DevOps, etc. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Data encryption, access control, IAM, GDPR, HIPAA, PCI-DSS compliance. Choosing me as your IT Architect, DBA, SysOps, and DevOps Engineer means you gain a trusted partner who will go the extra mile to deliver exceptional results and help your organisation thrive. Let's discuss your requirements and get you the best solution. Contact me today!
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    Git
    Kubernetes
    Python
    Enterprise Software
    Linux
    Oracle E-Business Suite
    Oracle Cloud
    Amazon Web Services
    Azure DevOps
    Cloud Architecture
    Database Architecture
    Solution Architecture
    Database Administration
    SQL
    Oracle Database
  • $70 hourly

    • 5.0/5
    • (41 jobs)
    𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 with 𝟲+ 𝘆𝗲𝗮𝗿𝘀 of experience and hands-on expertise in Big Data, Data Engineering, Data Warehousing and Data Analytics. Looking for someone with a broad skill set, minimal oversight and ownership mentality then contact me to discuss in detail the value and strength I can bring to your company. 𝙄 𝙝𝙖𝙫𝙚 𝙚𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚 𝙞𝙣 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙖𝙧𝙚𝙖𝙨, 𝙩𝙤𝙤𝙡𝙨 𝙖𝙣𝙙 𝙩𝙚𝙘𝙝𝙣𝙤𝙡𝙤𝙜𝙞𝙚𝙨: ► BIG DATA & DATA ENGINEERING Apache Spark, Hadoop, MapReduce, YARN, Pig, Hive, Kudu, HBase, Impala, Delta Lake, Oozie, NiFi, Kafka, Airflow, Kylin, Druid, Flink, Presto, Drill, Phoenix, Ambari, Ranger, Cloudera Manager, Zookeeper, Spark-Streaming, Streamsets, Snowflake ► CLOUD AWS -- EC2, S3, RDS, EMR, Redshift, Lambda, VPC, DynamoDB, Athena, Kinesis, Glue GCP -- BigQuery, Dataflow, Pub/Sub, Dataproc, Cloud Data Fusion Azure -- Data Factory, Synapse. HDInsight ► ANALYTICS, BI & DATA VISUALIZATION Tableau, Power BI, SSAS, SSMS, Superset, Grafana, Looker ► DATABASE SQL, NoSQL, Oracle, SQL Server, MySQL, PostgreSQL, MongoDB, PL/SQL, HBase, Cassandra ► OTHER SKILLS & TOOLS Docker, Kubernetes, Ansible, Pentaho, Python, Scala, Java, C, C++, C# 𝙎𝙤𝙢𝙚 𝙤𝙛 𝙢𝙮 𝙢𝙖𝙟𝙤𝙧 𝙥𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙞𝙣𝙘𝙡𝙪𝙙𝙚𝙙 - Designing Big Data architectures for the financial and telecom sector to power their data-driven digital transformation. - Implementing Data Lake and Data Warehousing solutions using Big Data tools. - Developing ETL workflows using Apache Spark, Apache NiFi, Streamsets, Apache Airflow, etc. - Hands-on experience with Big Data and Cloud technologies in implementation and architectural design of Data Lake and Data Warehouse. - Experienced in working with Cloudera, Hortonworks, AWS, GCP, and other Big Data and Cloud technologies. 𝙒𝙝𝙚𝙣 𝙮𝙤𝙪 𝙝𝙞𝙧𝙚 𝙢𝙚, 𝙮𝙤𝙪 𝙘𝙖𝙣 𝙚𝙭𝙥𝙚𝙘𝙩: - Outstanding results and service - High-quality output on time, every time - Strong communication - Regular & ongoing updates Your complete satisfaction is what I aim for, so the job is not complete until you are satisfied! Warm Regards, 𝗔𝗻𝗮𝘀
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Solution Architecture Consultation
    AWS Lambda
    Apache NiFi
    ETL Pipeline
    Data Management
    Data Warehousing
    AWS Glue
    Apache Spark
    Amazon Redshift
    Apache Hadoop
    ETL
    Python
    SQL
    Marketing Analytics
    Big Data
    Data Visualization
  • $49 hourly

    • 5.0/5
    • (14 jobs)
    Highly experienced Oracle Database Professional with 15+ years of experience in the field. Oracle on LInux, AIX, Solaris, Tru64, HP-UX. Passionate researcher on Oracle internals and optimizations. Creator of Oracle's next-gen performance monitoring and reaction framework at zztat.net. I greatly enjoy working with all aspects of the Oracle database and its underlying technologies including the OS, network and storage needed for optimum database operations. Performance analysis and optimization, security evaluation and hardening, code optimization and troubleshooting, database design and architecture, APEX web development, AJAX & jQuery.
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    Performance Optimization
    Security Analysis
    Scripting
    Unix System Administration
    Linux System Administration
    Oracle Database
    Oracle PLSQL
    Oracle APEX
  • $40 hourly

    • 4.9/5
    • (42 jobs)
    Over my 9-year career, I’ve developed a skill set directly relevant to the Database Administrator role you are hiring for, including: + Database Administration Oracle 19c/12c/11g - MS SQL Server 2008/2012/2016 - MySQL 5.1 to 8 - MongoDB , AWS RDS + Data Recovery + Disaster Recovery + Oracle Enterprise Cloud Management 13c + Golden Gate + Oracle Exadata + Oracle RAC + Oracle Data Integrator + Oracle Business Intelligence + Oracle Identity & Access Manager + Auditing + High Availability + SQL Server AlwaysON + SQL Server Integration Services + SQL Server Reporting Services + Power BI + MySQL Replication + MongoDB Replica Sets + Migrations (Oracle , SQL Server , MySQL , MongoDB , Cross-platform) + Oracle Virtual Box OVM + AWS RDS + AWS DMS + AWS SCT Core Databases: Oracle 19c/12c/11g , Oracle Exadata , Oracle RAC, High Availability , MS SQL Server 2008/2012/2016 , MySQL 5.1 to 8 , MongoDB. AWS RDS Task Automation / Scripting : Tasks automation using OS scheduling on RHEL and Windows , Shell Scripting. Database Business Continuity : Standby Database using DataGuard , GoldeGate , Cluster Database using oracle RAC , MS SQL Server AlwaysOn , MySQL Replication , MongoDB Replica Sets. Database Security Hardening : Security hardening the database (listener hardening , database profiles , DB roles/privs, auditing , restricting remote admin access , etc.) , Backup encryption. Database Performance Tunings : Using tools like ASH , AWR snapshots , ADDM , OEM13c , etc. Backup / Restore : Backup / restore database activities using RMAN , Data pump , mysqldump & mysqlpump , mysqlbinlog , mongodbdump Operating Systems : Redhat Enterprise Linux (RHEL) , Windows Server (routine OS related tasks , required for day-to-day database administration).
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Upgrade
    Oracle RAC
    Oracle Database Administration
    Disaster Recovery
    Oracle Data Guard
    High Availability and Disaster Recovery
    Microsoft SQL Server Administration
    Backup & Migration
    Data Recovery
    Database Optimization
    MySQL
    Database Administration
    Microsoft SQL Server
  • $40 hourly

    • 4.9/5
    • (6 jobs)
    I'm double Oracle Certified Master (10g/11g), Oracle Clusterware Certified Expert and RAC Implement Specialist (11g/12c), Oracle Certified Professional (9i,10g,11g) and Oracle ACE Director working as a DBA team head at AzerCell Telecom LLC. Following are key highlights of my experience: • Database Build: Database Design, Creating maximum high available database using RAC & Datagaurd . • Exadata: Exadata Support and Patching • Replication: Oracle GoldenGate, SharePlex • RAC: Install, create and manage multiple node RAC databases and configure the high availability of services • Cloud Platform - AWS and Oracle • NoSQL DB - Mongo DB. • BigData Admin: Experience in Apache Hadoop Administration. • Disaster Recovery: Building up high available DR Multiple DR build (3 Node standby DR in Rac cluster, Local & Remote DR). • Performance Tuning: Excellent Exposure on Database and Application Performance Tuning. • Database Patching and Upgrades: Experience on Patching and Major Upgrades from 10g to 11g, 11g to 12cx • Database Migration: database Migration from Solaris to Oracle Linux, Non ASM to ASM, Linux to AIX with minimal and near-zero downtime Certifications: Oracle9i Database Administrator Certified Associate Oracle9i Database Administrator Certified Professional Oracle Database 10g Administrator Certified Associate Oracle Database 10g Administrator Certified Professional Oracle Database 10g Administrator Certified Master Oracle Database 11g Administrator Certified Professional Oracle Database 11g Administrator Certified Master Oracle Database 12c Administrator Certified Professional Oracle Certified Expert, Oracle Real Application Clusters 11g and Grid Infrastructure Administrator Oracle Real Application Clusters 11g Certified Implementation Specialist Oracle Real Application Clusters 12c Certified Implementation Specialist Oracle Certified Expert, Oracle Database 12c: RAC and Grid Infrastructure Administrator
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    Cloudera
    Apache Hadoop
    Oracle Database
    Amazon ECS
    PostgreSQL
    Python
    MySQL
  • $40 hourly

    • 5.0/5
    • (51 jobs)
    Oracle Certified Database Developer with over 4 years of professional experience and 1 year of data analysis expertise, I am dedicated to providing top-notch solutions to meet your database and data analysis needs. Specializing in Database Design, SQL Query Development, PL/SQL programming, and SQL Query Optimization. My commitment to quality, attention to detail, and efficient project management ensure timely and successful completion of every task. Services I provide: ➤ Database Design and Development: I offer comprehensive database design and development services. Conceptual Design, Logical Design, ERD, EER, and Physical Design of Schema. I specialize in creating efficient and scalable database architectures tailored to your specific needs. I offer my service for Oracle, MS SQL Server, PostgreSQL, MySQL, and Azure databases. ➤ SQL Query: With my expertise in SQL, I can help you extract, manipulate, and analyze data from your database. From simple SELECT statements to advanced JOINs and subqueries, I am proficient in crafting efficient and accurate SQL queries. I pay attention to optimizing query performance and ensuring accurate results, empowering you to gain valuable insights from your data. ➤ PL/SQL Programming: Whether you require stored procedures, triggers, functions, or packages, I can develop custom PL/SQL code to automate tasks, enforce business rules, and improve overall database performance. I follow best practices in coding, ensuring readability, maintainability, and adherence to industry standards. ➤ Oracle Application Development: Technical Support of Oracle EBS Financial and SCM modules, configurations, and integrations. I can assist in identifying and resolving technical issues, whether they involve application errors or system integration challenges. I employ troubleshooting techniques to diagnose and resolve issues promptly, minimizing downtime and maximizing system efficiency. I will develop XML Publisher Report, OTBI Analysis, and Dashboard, and Custom Application Development with Oracle Forms, Reports & APEX. ➤ Data Analysis: Unleash the power of your data with my data analysis services. With expertise in tools like Excel and Python, I can help you uncover valuable insights and make data-driven decisions. From cleaning and transforming data to performing statistical analysis and creating visualizations, I have the skills to extract meaningful information from complex datasets. I work closely with you to understand your analytical goals and provide actionable results to drive business success. Why choose me? ✅ Expertise: I possess a deep understanding of Relational database architecture, SQL, PL/SQL, stored procedures, triggers, functions, Database design and optimization concepts, Oracle Forms, Reports & APEX. ✅ Reliability: I am dedicated to meeting deadlines and exceeding client expectations. ✅ Communication: I maintain clear and prompt communication to ensure transparency throughout the project. ✅ Collaborative Approach: I believe in fostering a strong client-freelancer partnership to deliver the best possible outcomes. ✅ Client Satisfaction: My ultimate goal is your satisfaction, and I strive to build long-term relationships with my clients. Let's discuss how I can assist you in achieving your project goals. Please reach out to me via Upwork messenger, and let's get started on creating exceptional results together. Looking forward to collaborating with you!
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    MySQL Programming
    Oracle
    Oracle PLSQL
    Database Development
    Data Analysis
    Oracle APEX
    Database
    Database Design
    SQL
    Microsoft SQL Server
    MySQL
    PostgreSQL
    Oracle Database
  • $55 hourly

    • 4.8/5
    • (63 jobs)
    ⭐⭐⭐⭐⭐"I hired Shafir to repair a corrupted SQL database. We used 2 other SQL engineers prior to meeting Shafir and also attempted a repair using a database repair application which also failed. We were at a point where nothing was working and we were coming to the conclusion that this was not repairable as there were too many errors. Shafir was very confident that he could repair the database and after watching him work for just a few minutes I immediately felt some hope of a successful repair. After working on the database for several hours Shafir managed to repair the database and get it working better than it was before. Working 20 years in IT I had never seen anything like it. Shafir is very professional and truly an SQL expert. I would highly recommend Shafir for any SQL project. Thank you." - Dean Cutajar, Director - Access IT ✅ HIGHEST EXPERIENCED and EXPERT SQL Server Freelancer on Upwork, specializing in SQL Server DBA, Database Development, and Business Intelligence Development (Data Engineer). I've solved customer-facing SQL Server bottlenecks and made massive performance improvements for Fortune companies and well-known organizations, including the following to illustrate some of them: ✅ AAA Communication Inc. USA (~14 Million Estimated Revenue per Year) ✅ NeTex Consulting. USA ✅ Cloud Retailer. USA (Over $500k+ Invested on Upwork) ✅ Selectel Wireless. USA ✅ Jevin Inc. USA ✅ Boender & BeuteI GmbH ✅ Access IT Extensive Experience as a SQL Server DBA (Versions 2000 - 2019) methodically identifying and resolving complex underlying causes of Microsoft SQL Server problems, using a vast variety of techniques and tools. I have solved numerous show-stopping SQL Server Performance problems, as well as often re-engineered immensely complex designs and code, providing significantly improved performance. Expert Level ability with Data Extraction, Transformation, and Loading (ETL) from numerous heterogeneous data sources. I pride myself in my ability to intuitively gather, interpret and understand your requirements, as well as develop intuitive and creative Business Intelligence Solutions using the full MSBI stack (Power BI, SSAS, SSRS, and SSIS). ⭐ Here's what I can bring to your project ⭐ ✅ Top-notch experience in all versions of SQL Server (2000 - 2019) and cloud platforms ✅ Extensive experience working with large enterprise transactional databases ✅ Expert understanding of data security best practices when working with PII and PHI data ✅ Ability to quickly diagnose SQL performance issues and identify query pain points ✅ Expert ability in designing ETL processes for data warehouses and BI databases ✅ 24/7 ultra-reliable communication: you will always be aware of the project status ✅ Someone who cares about helping you succeed and bringing value to your business ⭐ Why you should choose me over other freelancers ⭐ ✅ Client Reviews: I focus on providing value to all of my clients and earning their TRUST. ✅ Over-Delivering: this is core to my work as a freelancer. My focus is on giving more than what I expect to receive. I take pride in leaving all of my clients saying "WOW" ✅ Responsiveness: being extremely responsive and keeping all lines of communication readily open with my clients. ✅ Resilience: reach out to any of my current or former clients and ask them about my resilience. For any issue that my clients face, I attack them and find a solution. ✅ Kindness: one of the main aspects of my life that I implement in every facet. Treating everyone with respect, understanding all situations with empathy, and genuinely wanting to improve my client's situations. 🏆 Reviews and feedback from high-profile clients 🏆 The client reviews below (also in my work history section) describe the quality of work and value that you can expect from working with me. ⭐⭐⭐⭐⭐ "I hired Shafir as a SQL Server DBA and Azure expert to help optimise our database and Azure app instances. The improvements he made were incredible. Our services ran at 10 times the usual speed. I cannot recommend him enough. He’s a genius!" Paul S Schoop LTD ⭐⭐⭐⭐⭐ "Amazing experience! Shafir did the impossible. He was able to take a highly corrupted database and bring it back to life with zero data loss. Once repaired, he optimized the database and has it running better than it was before the corruption. He is responsive and easy to work with. Highly recommended. Will use again in the future." Jeff Cross 303 Networks Inc 🙋🏼♂️I am eager to work with you, to provide reliable, consistent, and High-Level solutions to design/development challenges. Please contact me, so we can discuss how we can work together to FULLY meet your Business Needs!
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    System Administration
    Microsoft Azure
    Database Maintenance
    SQL Server Integration Services
    Performance Optimization
    Microsoft SQL Server
    Database
    Database Administration
    Data Warehousing
    Microsoft Azure SQL Database
    SQL
    SQL Programming
    Microsoft SQL Server Administration
    Business Intelligence
    Microsoft SQL Server Programming
  • $56 hourly

    • 4.9/5
    • (52 jobs)
    Database tuning and analyzing: SQL slow queries tuning, guideline developers to enhance SQL queries applying with indexes and writing complex queries. Tuning memory allocation, initial parameters, I/O and all database workload problems. Troubleshoot for database problems in real-time. Database Administration (Oracle, PostgreSQL, MS SQL Server, MySQL, MariaDB). Business Intelligence and Data analytic tool (Oracle BI, SAP BO, Power BI, MS Excel Pivot table). Programming langue (VBA, Visual Basic, Oracle PL/SQL, MS SQL procedure, MySQL store procedure) Data Warehouse Architecture (Oracle/SAP BW): Designing data warehouse data model and data warehouse architecture. ERP System: Microsoft Navision for Retail, SAP ECC Script : Unix script, MS-Dos command line System: HP-UX, Solaris, Linux, Windows Data Governance and Data Management Retail Master Data Management: Managing and designing master data for MS Navision (ERP system) Business Analyst: Retail, Insurance, Finance Management, School Management, MIS Data Architecture: Designing database architecture and data policies. Project Administration: Keep the project on track I can discover database problems in 15 minutes, tune database performance speed up to 50% in a day.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Data Engineering
    Performance Optimization
    Power Query
    Data Analysis Consultation
    Query Tuning
    Database Maintenance
    Data Extraction
    Microsoft SQL Server Administration
    Oracle Database Administration
    Microsoft Power BI
    Data Analytics
    Database Architecture
    Database Modeling
    MySQL
    PostgreSQL
    Oracle Database
    Database Design
    Database Optimization
  • $20 hourly

    • 4.9/5
    • (31 jobs)
    Elastos Chimwanda is an audit, cyber security & cloud security expert, thought leader and published author. He serves as a Subject Matter Expert (SME) with various institutions including the Institute of Internal Auditors (IIA), the Information Systems Audit and Control Association (ISACA), the International Information Systems Security Certification Consortium (ISC2), the Cloud Security Alliance (CSA), the Open Web Application Security Project (OWASP) & the Center for Internet Security (CIS). He provides advisory services in all aspects of cyber security including developing cyber security strategies, performing security assessments, undertaking security audits, and general cyber governance, risk and compliance processes. He has worked with and has expertise in a wide range of frameworks such as COSO, COBIT, SOX, NIST, ISO, CCM, PCI DSS, SOC 2, CIS, Cyber Essentials and GDPR. He holds the CIA, CISA, CISSP, CCSP & ISO/IEC 27001 Lead Auditor professional designations as well as the BCom (Accounting & IT) (Hons) & MBA (Leadership and Management) degrees.
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    Website Audit
    IT Compliance Audit
    Security Engineering
    Penetration Testing
    SOC 2
    Vulnerability Assessment
    Information Security Audit
    ISO 27001
    NIST Cybersecurity Framework
    Information Security
    Technical Writing
    PCI DSS
    Cybersecurity Management
    Internal Auditing
    Cloud Security
  • $75 hourly

    • 5.0/5
    • (409 jobs)
    ✅ 🔻TOP-RATED PLUS🔻 freelancer on UpWork ✅ Senior DBA and developer ✅ Senior database architect ✅ Business solutions and BI expert ✅ 15+ years of experience Senior Database Developer & DBA. Consultant and certified database administrator and developer with 15+ years of experience working with: MS SQL Server 2000 - 2019 all versions and editions, Azure SQL, MySQL, MS Access, Amazon RDS, PostgreSQL, PowerShell, etc... Database performance tuning expert and advisor. Business solutions & BI consultant as Senior Developer. With many years of extensive experience in IT, finance, healthcare, and other enterprise-level companies in various roles. My objective is to use my expert-level skills and deep expertise to bring creative and top-level solutions to businesses that require professional support, development, or consultancy.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Amazon RDS
    Database Programming
    Microsoft SQL Server Programming
    Microsoft Azure SQL Database
    Microsoft Power BI
    SQL Programming
    Microsoft SQL Server Administration
    Database Maintenance
    MySQL
    Microsoft SQL Server
    Amazon Web Services
    SQL
    Transact-SQL
  • $10 hourly

    • 5.0/5
    • (8 jobs)
    I have 9 years of experience in software and application development and my expertise is into: - Oracle Cloud Application Development - Oracle PL/SQL Development - Data extraction & Data warehousing - Oracle performance tuning. - Good Experience to work on Oracle database advance option of tuning - Knowledge of Unix shell scripting to monitor database and preparing script for automate database cloning
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    PHP
    Business with 1-9 Employees
    WordPress Plugin
    WordPress
    JavaScript
    HTML
    IBM DataStage
    Performance Optimization
    Data Warehousing
    Oracle Cloud Applications
    Oracle Database
  • $35 hourly

    • 4.9/5
    • (52 jobs)
    I am a skilled Software developer with outstanding expertise in Java, Kotlin, Python, PHP. I am self-motivated and a freelancer. I like assisting people since its a way of learning as well
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    CSS
    Photo Retouching
    Mobile App Development
    Android Studio
    Native App Development
    G-Cloud
    Flutter
    Kotlin
    MATLAB
    Python
    Java GUI
    Java
    Android App Development
    Android
    Web Design
  • $40 hourly

    • 5.0/5
    • (3 jobs)
    • Over 11+ years of experience as an Oracle Apps DBA (11i |R12.1.x |R12.2.x) and Oracle Database (19c/12c / 11g / 10g) in Production Environment. • Good experience on daily Oracle Apps DBA activity and operations such as monitoring and administering EBS R12 and Oracle Database Instances assuring availability and optimal performance of EBS Infrastructure. • Good experience on planning and designing Oracle EBS R12 Technology Architecture including installation, configuration and upgradation having architecture like multi node, load balanced /clustering and DMZ setup. • Good experience on managing and administering Production/QA/Stage/Development Instances of EBS R12. • Good experience in Installation and Administration of Oracle Application 11i / R12.1.x / R12.2.x and Oracle Database 12c / 11g /10g on windows and Linux Environment. • Good experience on Installation, Upgrade and Configuration of Oracle (9i, 10g, 11g). • Good Expericen on Installation and configuration of 9iAS/10gAS, Apache. Troubleshooting of R12/11i as advised by Oracle Support. • Proactive Monitoring/Administration of Oracle APPS • Experience in Oracle OTM, SOA, Weblogic and Gateway installations and support • Extensive experience on Cloning/Refresh of EBS R12 Instance and Oracle Database using Rapid Clone and other cloning technology adopted by clients. • Expertise in implementing backup & recovery strategy for databases using RMAN • Oracle APPS Planning Configuration and maintenance. • Good experience on running AD Utilities and expert in utilizing it. (ad* for AutoConfig, Patching, Admin, Cloning, Ctrl etc). • Extensive hands-on experience in Table space Management, Users Management, Roles & Privileges. • Extensive experience on patching of EBS R12 Instance and Oracle Database Instance. (Rollup, CPU, Merged Patch, RDBMS Opatch etc), able to analyze in-depth of patch driver file and troubleshooting for any issue related to patch. • Good experience on Implementaton and configuration of Oracle Real Application cluster and applying patches, Oracle RAC Test cases. • Good experience on configuration of Oracle Data gaurd and troubleshooting. • Good experience on Platform Migration for E-Business Application R12.1.2 / R12.2 (from HP Unix to Linux / Linux to Unix / Windows to Linux) • Good experience on Oracle EBS instance upgrade from version Apps 11i to EBS R12.1.x/R12.2.x or EBS R12.0/R12.1.x to R12.1.x / R12.2.x and Oracle Database Upgrade to higher version. • Good experience on Creating Custom top in DEV/QA/PROD when required. • Performing Applications System Administration tasks like registering new forms, reports, Fixing Printer Issues, Setting Profile Options, Creating/Assigning Responsibilities, Creating APPS Users etc. • Good experience to work on Oracle Database Advance option of tuning and administering like Recovery Advisor, ADDM, AWR, Tuning and Diagnostic Pack etc and worked on Grid / Cloud Control. • Experience on SOX controls which includes: Document Change Details, Change Approval, Oracle security CPU patches for database and applications, Auditing, Setting password verification functions, password aging, Periodic review of failed login attempts etc. • Good troubleshooter for any performance issue and bugs, able to work with Oracle Support and eager to resolve issue with priority. • Good experience on Implementation/Configuration/Administration of OBIEE. • Good experience on implementing SSL on R12.1.x/ R12.2.x. • Good Experience in writing Unix Shell scripting for preparing Oracle Database monitoring scripts, Prepared script for automatic Oralce Database Cloning. • Experience in writing PL/SQL stored procedures ,function triggers as required for security, monitoring, audit and alert monitoring in addition to solving database related issues with the application developer
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Patching
    Database Administration
    Data Migration
    Oracle Cloud
    Oracle RAC
    Oracle Upgrade
    Oracle Applications
    Oracle E-Business Suite
    Oracle Data Guard
    Oracle Database Administration
    Oracle Database
  • $40 hourly

    • 5.0/5
    • (16 jobs)
    Greetings, I'm delighted to introduce myself as a Top Rated (Top 1%) and Highest Earning SQL Server freelancer on Upwork, focusing on Power BI, Database Development, and Business Intelligence. I've had the privilege of working with high-profile clients such as Viftech Solution PVT LTD and Blutech Consulting and am proudly ranked as the Top Freelancer among 116,000+ peers in the Data Science & Analytics Category on Upwork. My proficiency with SQL Server spans across versions 2000 to 2019, enabling me to diagnose and resolve intricate issues while ensuring improved performance. With expert-level ETL capabilities and proficiency in extracting data from numerous sources, I craft inventive BI solutions using the full MS-BI stack. My specialties include: Business Intelligence Consulting Data Analytics Data Visualization Dashboard Development BI Reporting Data Warehouse Architecture ETL Development Stakeholder Management Data Exploration and Discovery Business Analysis and Planning Problem Solving Performance Optimization Technical Documentation and Reporting Database Design and Maintenance Knowledge of Artificial Intelligence and Machine Learning. Why should you choose me? ✅ Outstanding Client Reviews: My primary objective is to add value and win my clients' trust. ✅ Exceeding Expectations: My goal is to go beyond client expectations, leaving a lasting "WOW" impact. ✅ Swift Responsiveness: I maintain open lines of communication and prioritize rapid response. ✅ Resilience: I approach challenges head-on, always finding solutions. ✅ Cordiality: I treat all individuals with utmost respect and consistently aim to enhance client experiences. If you are in search of a seasoned professional who can help turn your data into a strategic asset and boost your business performance, I would be more than happy to hear from you. I am excited about understanding your project needs and discussing how we can collaboratively fulfill your objectives.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Data Analysis
    Transact-SQL
    Data Mining
    Microsoft SQL SSAS
    SQL Server Reporting Services
    Data Analysis Expressions
    Business Analysis
    Online Analytical Processing
    Microsoft Excel
    SQL Server Integration Services
    Microsoft Power BI Data Visualization
    Data Visualization
    Microsoft Power BI
    ETL
  • $60 hourly

    • 4.3/5
    • (5 jobs)
    Experienced & highly motivated IT professional with extensive knowledge of Oracle (Data Guard & Grid Infrastructure) 19/18c/12c/11g/10g/9i/8i, Golden Gate Golden Gate 11g/12c, Exadata, PostgreSQL, MSSQL 2K5/2K8/2K12/2014, Python 3. Extensive knowledge of Oracle Maximum Availability Architecture, Real Time Data Integration and Replication, strong oral and written communication skills, proven ability to design and implement Oracle based customised solutions, and ability to achieve corporate objectives in challenging work environments. CAREER SUMMARY: •ITIL v4 Certified with over 22 Years of experience in Oracle Database Design & Administration •OCP (Oracle Certified Professional) 12c/11g/10g DBA •Oracle RAC Certified Administrator 10g •Oracle Exadata 11g Certified Implementation Specialist •Oracle Enterprise Linux Certified Associates •Oracle Certified SQL and PL/SQL programmer •AWS Certified Cloud Practitioner •Cloudera Certified Administrator for Apache Hadoop (CCAH) (License:100-013-767) •Cloudera Certified Developer for Apache Hadoop (CCDH) (License:100-013-767) •Six Sigma Green Belt Certified Professional. •Sun Certified Programmer for the Java 2 Platform 1.4
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    High Availability and Disaster Recovery
    Oracle Programming
    Oracle GoldenGate
    Oracle Data Guard
    Oracle APEX
    Oracle PLSQL
    Oracle Patching
    Oracle Upgrade
    Oracle Exadata
    Oracle Database
  • $40 hourly

    • 5.0/5
    • (8 jobs)
    Dedicated employee striving to succeed and meet the requirements and interests of the company. Showing special interest in database development, data visualization and data analysis. Here is what I offer: ➡️ Create complex queries, packages, procedures, functions, views, triggers, indexes; ➡️ Performance tuning - Optimize queries using hints, partitioning, indexes; ➡️ Develop ETL solutions for various sources; ➡️ Create Data Warehouse Architecture and Data Modeling using SAP PowerDesigner and Oracle Data Integrator; ➡️ Design reports using SSRS, Microsoft Power BI, Oracle BI;
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    MySQL Programming
    Marketing Data Analytics
    PostgreSQL Programming
    MySQL
    Microsoft SQL Server Programming
    Microsoft SQL Server
    Microsoft SQL Server Reporting Services
    Microsoft Excel
    SQL Programming
    Data Structure
    Data Modeling
    Oracle PL/SQL
    Microsoft Power BI Development
    Oracle Data Integrator
  • $31 hourly

    • 4.8/5
    • (10 jobs)
    I am an experienced database administrator with over 13 years of expertise in Oracle Technologies, 8 years in MS SQL Server, 6 years in both Postgres and MySQL, and 4 years in MariaDB. My extensive background in various database management systems allows me to effectively design, implement, and maintain complex databases to support the needs of an organization. I am well-versed in SQL and have a strong understanding of database architecture, performance tuning, and security best practices. I am also familiar with multiple operating systems and can work comfortably in both Windows,Solaris,AIX and Linux environments. I am confident in my ability to provide exceptional service and support to organizations requiring a skilled and knowledgeable database professional.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Windows 10 Administration
    Microsoft SQL Server Administration
    Oracle RAC
    Oracle
    Oracle Data Guard
    Oracle E-Business Suite
    Oracle Database Administration
  • $45 hourly

    • 5.0/5
    • (8 jobs)
    Oracle Certified Master (OCM) database administrator with 10+ years of experience. I've supported up to 400 high available Oracle databases, OLPT and DWH, including mission critical billing and payment systems. - high available Oracle databases - RAC, Data Guard, ASM - SQL and database performance turning - oracle database problem solving and troubleshooting - oracle database deployment and provisioning - Python
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Data Guard
    Oracle RAC
    Oracle Database Administration
    Linux
    Python
    SQL
  • $35 hourly

    • 5.0/5
    • (1 job)
    My interest in the SYSADMIN position posted on Upwork. With my strong background in database administration and extensive experience working with Oracle and mysql databases, I am confident in my ability to contribute to the success of your project. I have been working as an SYSADMIN for 8+ years, supporting various clients in optimizing and managing their various database environments. During my tenure, I have successfully performed a wide range of responsibilities, including: • Installing, configuring, and upgrading Oracle databases to ensure optimal performance and reliability. • Monitoring and tuning database performance, identifying and resolving bottlenecks to enhance efficiency. • Implementing robust backup and recovery strategies to minimize data loss and downtime. • Managing user access and security, implementing appropriate access controls and authentication protocols. • Troubleshooting and resolving database-related issues promptly and effectively. • Collaborating with development teams to optimize database design and performance. • Providing documentation, guidelines, and training to assist users and other team members. In addition to my technical skills, I possess excellent problem-solving abilities and strong communication skills, allowing me to effectively collaborate with clients and team members. I am highly organized, detail-oriented, and dedicated to delivering high-quality results within the agreed timelines. My qualifications include: • Bachelor's degree in Computer Science or relevant field. • Oracle Database Administrator Certified Professional (OCP) certification. • Proficiency in Oracle Database versions 10g, 11g 12c and 19c. • Expertise in Oracle Database Administration tools such as Oracle Enterprise Manager (OEM). • Strong knowledge of database performance tuning and optimization techniques. • Familiarity with Oracle Data Guard, Oracle RAC, and Oracle Exadata. • Experience with scripting languages such as SQL, PL/SQL, and Shell scripting. I am also holding the below vendor certification. • Oracle Database Administration 2019 Certified Professional (OC1485761) • Oracle Database 11g Administrator Certified Professional (Testing ID: OC1485761) • Oracle Database 11g Administrator Certified Associate (Testing ID: OC1485761) • Oracle Cloud Infrastructure 2021 Certified Architect Professional (Testing ID: OC2216127) • Oracle Cloud Database Migration and Integration 2021 Certified Specialist (Testing ID: OC2216127) • Oracle Cloud Database Services 2021 Certified Specialist (Testing ID: OC2216127) • Oracle Autonomous Database Cloud 2021 Certified Specialist (Testing ID: OC2216127) • Oracle Cloud Infrastructure 2021 Certified Architect Associate (Testing ID: OC2216127) • Cisco Certified Network Associate (CCNA) (Credential ID 415799398561HSVJ) • The Red Hat Certified Engineer (RHCE) (Credential ID 140-034-018) I am excited about the opportunity to contribute my skills and experience to your project and help you achieve your database management objectives. I am confident that my expertise in Oracle database administration and my dedication to delivering exceptional results make me a strong candidate for any database management position.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Application Framework
    English
    Oracle Application Server
    Oracle Upgrade
    Data Entry
    Disaster Recovery
    Oracle Data Guard
    Data Mining
    Oracle Cloud
    Oracle Database Administration
    Microsoft SQL Server Administration
    Red Hat Enterprise Linux
    Oracle Patching
    Oracle APEX
    Oracle E-Business Suite
    Microsoft Excel
    Linux System Administration
    Database Administration
    SQL
  • $45 hourly

    • 5.0/5
    • (3 jobs)
    As a skilled database administrator with experience in Oracle and PostgreSQL databases, I have the technical proficiency to effectively manage and maintain databases, ensuring optimal performance and data integrity. With a strong understanding of database architecture and design, I have provided customized database solutions to various clients, implementing effective data storage, retrieval, and backup strategies. My work experience includes hands-on experience in database administration, data modeling, database optimization, and performance tuning. Furthermore, I possess excellent problem-solving skills and can effectively troubleshoot and resolve database-related issues. I have experience working with various database management tools, enabling me to streamline database operations and increase efficiency. Overall, I pride myself on being detail-oriented, analytical, and able to work independently or as part of a team to deliver timely and high-quality work to meet my clients' needs.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Database Modeling
    Database Management
    Database
    Database Query
    Oracle RAC
    Database Maintenance
    Red Hat
    Linux
    Oracle Database Administration
    Database Optimization
    Database Administration
    Oracle Database
    Database Design
    PostgreSQL
  • $15 hourly

    • 5.0/5
    • (2 jobs)
    Operating System : Red Hat Enter Linux 7|8, Windows Family. Languages : C, C++, SQL,JAVA Database : Oracle 9i, 10g, 11g,12c Management Tools : SQL Loader, RMAN, Data Pump, CRSCTL, SRVCTL, ASMCMD, RMAN, ASM, DATAGUARD,OEM,RAC
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Data Guard
    Oracle Patching
    Oracle Exadata
    Oracle RAC
    Linux
    PostgreSQL
    Oracle Database Administration
  • $46 hourly

    • 3.8/5
    • (210 jobs)
    I am a Principal Software Engineer with over 7 years of software development experience. I help businesses with complicated business logic to implement scalable technical solutions by designing software architecture and applying it. Throughout my career, I worked as a Software Developer and Software Architect. I’ve worked with startups and with companies having dozens of billion dollars in yearly recurring revenue. I’ve worked on projects of different sizes, from small ones where I was the only technical person to huge ones where I had five teams working concurrently by use of Jira, slack and GitLab. So that you can get an idea of my type of work and working together would look like, Following are some of challenges that I am faced with when designing and implementing the system: 1. System should handle millions of transactions per day that have to be reported in a timely manner. 2. System should be tolerant to hardware failures, including the loss of the entire data center. 3. Multiple developers should be able to work on the project productively with minimal conflicts. 4. Correctness of reporting is essential - every introduced bug can have disastrous consequences - the system should have checks in place that prevent buggy code from being deployed to production. 5. Transaction reporting domain is very complicated, and business requirements are frequently changing. System design should be flexible enough to adjust to the required changes. 6. There are multiple stakeholders involved; each has different requirements for the system. I am devoted on a great deal of attention to solving most challenging problems in the engineering world by building a system that supports 'exactly once' end to end processing semantics (that means that every message is processed exactly once, with no message loss or duplication). If you're willing to work with me - write me Thanks.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Kubernetes
    Docker
    Hibernate
    Microservice
    Spring Security
    Core Java
    Web Services Development
    RabbitMQ
    Laravel
    RESTful API
    Laravel
    PHP
    JavaFX
    Java
    Spring Boot
  • $60 hourly

    • 5.0/5
    • (49 jobs)
    ◆ 9 + years as a senior expert in MySQL/PostgreSQL/Oracle database ◆ Good at MySQL 5.5/5.6/5.7/8.0/8.1 backup recovery, SQL tuning, monitoring operation and maintenance, high availability architecture design, etc., proficient in Innodb, High Availability, Replication, MySQL NDB Cluster, Scalability Solutions, and MySQL Enterprise Suite and other related technical fields. ◆ Good at PostgreSQL 9/10/11/12/13/14/15 installation, configuration, backup and recovery, security, query optimization, high-availability, disaster recovery, extensions (PostGIS, PL/Python, pgAdmin), scaling solutions (sharding, partitioning, connection pooling), and PostgreSQL Enterprise Edition and related tools (pgBackRest, pgpool-II). ◆ Good at Oracle 11g/12C/19C/21C backup recovery, SQL tuning, monitoring operation, and maintenance, high availability architecture design, and is proficient in RAC, DG/ADG, OGG, PDB/CBD, RMAN, EXP, and XTTS and other related technical fields. ◆ Get Cisco \ Oracle \ MySQL \ AWS \ ITIL \ PMP \ TOGAF certification ◆ Worked for the world's top three ICT and IoT solution providers, providing database-related technical support and course training for major operators and banking and financial enterprises. ◆ Accumulatively managed 5000+ databases and 300TB+ data. I hope to use my years of work experience and professional knowledge to help you solve the problems encountered in MySQL/PostgreSQL/Oracle database, and at the same time provide relevant course training.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Amazon RDS
    Database Maintenance
    Oracle Database
    Query Tuning
    MariaDB
    Database Design
    Database Administration
    MySQL Programming
    Database Optimization
    Linux
    PostgreSQL
    MySQL
    Backup & Migration
    SQL
    Oracle
  • $20 hourly

    • 5.0/5
    • (15 jobs)
    •Having 10+ years of experience as an Oracle DBA ( 19c / 12c / 11gR2/ 10g) and as an Oracle PL/SQL Developer in development and Production Environment . •In Depth Experience in Oracle RAC , DataGuard , GoldenGate , Performance Tuning and SQL Tuning •Having 7+ years of experience as an Oracle DBA ( 19c / 12c / 11g R2 / 10g ) Online Trainer. •Good experience in Installation and Administration of Oracle database server 19c/12c/11gR2/10g on Windows and Linux Environment. •Knowlege of Oracle Database 19c/12c New Features - Creation of CDB & PDB database, Managing PDB - Plug , unplug , clonning , Tablespace and User Management in CDB and PDB , Backup and Recovery at CDB and PDB Level. •Extensive hands-on experience in Table space Management, Users Management, Roles & Privileges. •Having good experience in Monitoring Oracle Database Using Oracle Enterprise Manager DB Console and OEM Cloud Control. •Expertise in implementing backup & recovery strategy for databases using RMAN. •Having good experience in cloning the database. •Implemented Oracle Data Gaurd with physical ,Logical standby , Active Standby & Snapshot Standby . •Implemented Oracle Data Guard Broker and peformed switchover & Failover activing using broker. •Having experiences of performing rolling upgrade,patching on Oracle data guard environment. •Having experience in Oracle 19c/12c RAC architecture , Installation of RAC and adding node on RAC. •Having good Knowledge of Creating AWR Report,Running ADDM Report,EXPLAIN PLAN and TKPROF. •Monitor the growth of database to ensure the smooth running of daily activities. •Configured Oracle GoldenGate 19c/12c Uni-directional , Bi-Directional with CDR using Macro , Token. •Basic experience Microsoft SQL DBA Activity and configuring Microsoft SQL Server Always On , Replication , Log Shipping and Mirroring as HA solution. •Experience in Creating Oracle SQL and PL/SQL Objects like Tables, View,Indexes,Sequence, Synonyms, Triggers, procedures, Function, package, cursors and materialized view. •Experience in writing Complex SQL Queries. •Experience in Linux / Unix Commands.
    vsuc_fltilesrefresh_TrophyIcon Oracle Performance Tuning
    Oracle Data Guard
    Oracle PLSQL
    Oracle Database
    Oracle GoldenGate
    Oracle RAC
    Database Administration
    Oracle PL/SQL
    Oracle Database
    SQL
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At A Glance: Oracle Performance Tuning

From Taipei to Silicon Valley, technology is the core around which the modern workplace revolves. Computers in all of their multitudinous permutations are essential tools for every business owner and employee alike. Thus, it is essential for these devices and their respective software systems to maintain a high level of performance at all times. Oracle was second only to Microsoft in 2011 in terms of revenue for software makers, and Oracle’s computer hardware systems and enterprise software products are widely used and trusted by professionals the world over. In particular, Oracle database management systems have proven to be a boon to many a business. Oracle software also includes customer relationship management (CRM), enterprise resource planning (ERP), and supply chain management (SCM) software.

Whatever Oracle products you or your company utilize, an experienced and qualified Oracle performance tuning expert can ensure you are getting the most out of this highly-valuable software. An Oracle performance tuning professional can help you in an array of tasks, including installing, implementing, updating, and managing software to optimize performance. These experts are experienced in areas such as SQL tuning, backing up and restoring data, writing scripts to automate processes, building heterogeneous systems with other databases, analysis, and much more. Freelancers on Upwork are dedicated professionals who will work with you to meet your needs in a timely fashion and at a competitive rate. Whether you’re a new Oracle user looking to install your newly-purchased software, or are a seasoned user in need of some troubleshooting expertise, a talented Oracle performance tuning expert can assist you.

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