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Hire the best Oracle Real Application Clusters (RAC) specialists

Check out Oracle Real Application Clusters (RAC) specialists with the skills you need for your next job.
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  4. (Current) Oracle Real Application Clusters (RAC) Specialists
  • $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 -
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    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!
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    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
  • $45 hourly

    • 5.0/5
    • (6 jobs)
    • Excellent working knowledge of Oracle RDBMS 9i\10\11g • Excellent working knowledge of Oracle RAC • Excellent working knowledge of Oracle Forms • Excellent working knowledge of SQL 2000\2005\2008\2012 • Experience working in other RDBMS databases like Mysql and Postgresql • Experience working with NOSQL • Experience using a scripting language to automate tasks • Excellent working knowledge of SQL High Availability features • Experience of performance and tuning optimizing SQL DB’s • Experience of monitoring and alerting tools for DB’s
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle APEX
    MySQL
    PostgreSQL
    Vertica
    Microsoft SQL Server Administration
    Oracle RAC
    Oracle Data Guard
    Oracle Database Administration
  • $60 hourly

    • 5.0/5
    • (8 jobs)
    Looking for an Oracle DBA to administer, support and optimize your DB (10g,11g,12c,18c,19c) and query performance? I have vast experience managing; - Oracle Engineered Systems: Supercluster, ZFS Storage Appliance, Exadata - Availability; RAC, ASM - Replication; Data Guard, Goldengate, DBVisit - OS; Solaris, Red Hat, CentOS, OEL - Ldoms for applications, SOA and Middleware (OLVM) - Monitoring: OEM 12c/13c, Zabbix
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    Oracle Patching
    Oracle GoldenGate
    Oracle PL/SQL
    Oracle Data Guard
    Oracle E-Business Suite
    SQL
    Oracle Cloud
    Oracle Exadata
    Oracle OBIEE Plus
    Database Security
    Database Maintenance
    Database Design
    Database
    Solaris Administration
    Oracle RAC
  • $30 hourly

    • 5.0/5
    • (3 jobs)
    As a certified and experienced Oracle DBA and AppsDBA with 11 Years of Experience, I am able to perform all levels of database maintenance and am fully qualified to do Oracle updates as well. Technically‐sophisticated professional with extensive experience in updating server security, executing routine back‐ups, and designing and implementing tests of the system to address issues with accessing data. Adept at leading the planning, designing, developing, testing, and deploying efficient solutions within Oracle EBS system, in order to satisfy strategic, financial, and operations needs of the organization. Skilled in planning and managing successful projects, mitigating risks, controlling costs, and directing project teams. Instrumental in monitoring the routine maintenance of the system, implementing the ERP systems, and approving the budget. Proven success in analyzing business processes/process re‐engineering and recommending solutions. Deft at establishing IT service continuity management strategies, disaster recovery plans, and associated test procedures of each critical functional area of the organization.
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    Oracle RAC
    Windows Server
    Oracle Fusion Middleware
    Linux System Administration
    Oracle WebLogic Server
    Oracle GoldenGate
    Oracle Data Guard
    System Administration
    Oracle Reports
    Oracle E-Business Suite
    Oracle Exadata
    Oracle Database Administration
    Database Administration
    Oracle Database
    Oracle Cloud
  • $20 hourly

    • 4.9/5
    • (165 jobs)
    I will design and develop oracle application as per your requirement within shortest possible time. I'm an Oracle Certified Professional (OCP) and I've strong professional experience & expertise of database project design and develop in Oracle I have over 7 years experience in the area of ​​IT: systems analysis, solution design, development, quality testing and shift control to production environment. Experience in analysis and solutions development in DB Oracle (PL / SQL) and SQL Server. Experience in user support. Area of Specialization ============== ✔ Oralce PL/SQL Programming ✔ Oralce SQL Programming ✔ Oracle Forms(All Types) ✔ Oracle Reports(All Types) ✔ Database Designing ✔ Query Handling ✔ Database Functions ✔ Database Procedures ✔ Database Packages ✔ Database Views ✔ SQL,PL/SQL complex queries ✔ Graphical User Interface (GUI) ✔ Data Guard Configuration ✔ RMAN Active Duplication ✔ Database Performance Tuning ✔ RMAN backup and recovery ✔ Oracle Forms and Reports Developer (6i, 10g,12c) ✔ Oracle Web Logic Server 12c ✔ Oracle Fusion Middle-ware 12c ✔ Windows, Linux, AIX Operating System ✔ Real application cluster(RAC) ✔ Database migration and upgrading ✔ Linux shell script ✔ Oracle automatic storage(ASM) ✔ SQL Server ✔ Apache tomcat ✔ Http server, haproxy, Lvm linux During my work experience I have Design multiple system in Oracle like -Hospital Management System, -Human Resource Management System, -Inventory Management System, -Fabric Management System, -Accounts Management System, -Order Management System, -Point Of Sale, -Export Management System, -School Management System. I have gained excellence in the field of systems, controls and analysis. My experience in automating manual tasks has been proven to be highly effective. I have also gained experience in system/process design and implementation. My passion is to help my clients solve financial issues and deliver the best quality of work they require. I look forward to a long-term relationship with my clients. Hope to hear from you soon!
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    WordPress Development
    Prototype JavaScript Framework
    Ubuntu
    Oracle Forms
    Oracle PLSQL
    Oracle RAC
    Oracle Database Administration
    Data Mining
    Mobile App
    Database Programming
    Oracle Programming
    Oracle APEX
    Linux System Administration
    Apache Tomcat
    Oracle Database
  • $27 hourly

    • 5.0/5
    • (81 jobs)
    I am in web development for the past 21 years. I love to work on Business processes and workflow automation. Typically My Clients hire me if they want to - * Convert a complex spreadsheet-based business process into an intelligent cloud-based software * Automate a manual business process * Build a custom CRM or custom ERP system * Build a web portal or mobile application for their Internet-based business ideas Over the last 21 years, I have been working on Web Application Development using various technologies like Laravel, CakePHP Framework, Zend Framework, and other PHP and open source technologies like Ionic, AngularJs for Mobile Application development. My Expertise is in developing Web Products or Ideas, Developing CRM Systems or other Complex Web or Mobile Applications. During this tenure, I've worked in various business verticals like - Medical, Healthcare and Wellness, Manufacturing, Placements and Recruitment, IT and ITeS, Real Estate, Travel, Pet Care Industry, Entertainment, Back-office workflow, and CRM, etc. If you are looking for someone - - who can be more than a developer like a Fellow Team Member - who give you suggestions or ideas to improvise your IT project, - provide usability inputs - And in general someone reliable for all your technological needs, then I can assure you we will enjoy working together! Following are a few areas of my expertise - 1] Ionic Framework, AngularJs, Laravel, CakePHP, CodeIgniter, Zend Framework, ExpressionEngine CMS, Responsive Web Design 2] SaaS or Software as a service or Cloud-based web application development 3] Custom CRM and ERP Development 4] Web Idea development and incubation (web portal development, web services development) 5] Web-based application for Business Process Automation 6] Enterprise web application development 7] Company Intranet development My objective is to provide you with reliable software development services and build a long-lasting relationship, which you can count on even after we finish working together.
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    Web Development
    Product Development
    SaaS
    Responsive Web Design
    Business Analysis
    CakePHP
    Ionic Framework
    Customer Relationship Management
    Laravel
    AngularJS
  • $70 hourly

    • 4.8/5
    • (97 jobs)
    My extensive experience in DATABASE AND CYBERSECURITY over the past years include the following: 1). CISSP; Information security, cybersecurity 2) INFORMATION SECURITY/CYBERSECURITY/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 Please let me know if you have any questions.
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    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
    Oracle Performance Tuning
    Information Security
  • $25 hourly

    • 4.7/5
    • (57 jobs)
    I am an experienced and confident (Network/System) engineer with more than 15 years' experience in a variety of network environments. Expert in: *** Operating Systems: 1- Windows Servers 2003/2008/2012/2016/2019. 2- Linux Centos/Ubuntu. *** Virtualization Technology: 1- Vmware. 2- Proxmox. *** Networking: 1- Cisco. 2- Teltonika. 3- Mikrotik. 4- Ubiquity & Unifi. 5- PFsense & OPNsense. 6- Fortigate. 7- Netgear. *** VPN 1- OpenVPN. 2- Softether. 3- WireGuard
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    Virtual Private Server
    Python
    Virtualization
    Virtual LAN
    System Administration
    Network Administration
    Proxmox VE
    Zabbix
    cPanel
    WebHost Manager (WHM)
    VPN
    Mikrotik RouterBOARD
    Network Engineering
    Linux System Administration
  • $15 hourly

    • 5.0/5
    • (5 jobs)
    Hello, Myself, Debasis from Sett Consultant, Kolkata, India and we are providing outsourcing services on Oracle APEX mainly. Our Background: We started our journey from 2016 with 4-5 people, now we have a strength of 45 resources including 20 Oracle APEX resources. We are working with a few clients based in the USA, UK, UAE, Israel, Mexico, Malaysia, India etc. Executive Summary: We have vast experience to work on Business Oriented APEX Applications. Last 8 years we have been providing solutions to our clients on Oracle APEX. We always believe in long-term relationships. Scope of Work: Oracle APEX (4.2 to 23.1) SQL - PL/SQL UI Design RESTful Web Service 3rd party API Integration Oracle Forms to APEX Migration BI publisher, APEX office print(AOP), Jasper Report PWA Multi-language Dynamic Workflow Approval Process Custom Theme Oracle Cloud Pricing: Senior Resources (5+ years of experiences) : 15 USD per hour / 2000 USD per month Junior Resources (upto 5 years of experiences) : 12 USD per hour / 1700 USD per month ** Fixed cost depends on client requirements. Proposals: We can assign multiple resources for your projects, they can work dedicatedly on your projects. Attachments: PFA our presentation of Oracle APEX. Let us know when you will be available for initial discussion. We can show you some Demo Applications. We are waiting for your positive response. Thanks, Debasis Kundu
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle Database Administration
    Oracle Fusion Applications
    Oracle Cloud
    Web Service
    Oracle Integration Cloud Service
    Oracle PLSQL
    API Integration
    User Interface Design
    jQuery
    JavaScript
    HTML5
    CSS
    RESTful API
    Oracle PL/SQL
    Oracle APEX
  • $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 Real Application Clusters (RAC)
    High Availability and Disaster Recovery
    Oracle Programming
    Oracle GoldenGate
    Oracle Data Guard
    Oracle APEX
    Oracle PLSQL
    Oracle Patching
    Oracle Upgrade
    Oracle Exadata
    Oracle Database
    Oracle Performance Tuning
  • $35 hourly

    • 5.0/5
    • (34 jobs)
    Oracle Database 12c Certified Oracle Database 11g Certified Oracle Database 10g Certified Oracle Database 8i Certified Oracle App DBA Certified R12 Oracle Certified Specialist (General Ledger , Payable) Working Experience Oracle DBA / Head of I.T for more than 25 years
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    Database
    Oracle Database Administration
    Oracle Reports
    Oracle Forms
    Database Design
    SQL
  • $60 hourly

    • 5.0/5
    • (40 jobs)
    I specialize in Linux-based database systems. I hold the qualifications of Bachelor of Science (computer science), and have also attained RHCE (RHEL 6.0, 2012), and OCP (RDBMS, 10g). What I can offer clients is a professional solution that will meet requirements. Top Skills: * Linux systems administration: RedHat, CentOS, Ubuntu * RDBMS administration: Oracle and RAC, MySQL * RDBMS design and programming: PL/SQL, SQL performance tuning * Systems Programming: bash, Perl Comprehensive Skills: * Web Infrastructure Design and administration: Apache, Tomcat, Squid, JVM * Virtualization: Xen, KVM, VMWare Server * Firewall: Linux IPTables, Firewalld * Mail Servers: Sendmail, Postfix * Software development: Java (SE, Spring MVC), PHP, HTML, CSS, JQuery, Github, Maven, Visual Basic * Cloud: Microsoft Azure architecture design and implementation, Linode, Digital Ocean, AWS and S3 * Monitoring: Nagios, Big brother, Cacti, Zabbix * Hadoop big data
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Bash Programming
    Java
    Perl
    MySQL
    MySQL Programming
    Linux System Administration
    Red Hat Certified Engineer
    Oracle PL/SQL
    Oracle RAC
    Oracle Database
  • $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 Real Application Clusters (RAC)
    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
    Oracle Performance Tuning
    Data Analytics
    Database Architecture
    Database Modeling
    MySQL
    PostgreSQL
    Oracle Database
    Database Design
    Database Optimization
  • $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 Real Application Clusters (RAC)
    Oracle Upgrade
    Oracle RAC
    Oracle Database Administration
    Disaster Recovery
    Oracle Performance Tuning
    Oracle Data Guard
    High Availability and Disaster Recovery
    Microsoft SQL Server Administration
    Backup & Migration
    Data Recovery
    Database Optimization
    MySQL
    Database Administration
    Microsoft SQL Server
  • $50 hourly

    • 5.0/5
    • (7 jobs)
    Over 10 years of experience in managing teams of engineers. Experience in Data Engineering for more than 20 years. I consider my biggest achievement to be a startup that I created from scratch. This is a startup in the development of Data Engineering systems. The startup team grew over the course of 10 years and the startup was successful and profitable. Since I was the founder of a startup, I have worked in various positions, such as a developer, a technical lead, a project manager, and a CTO. After 10 years of growth, my startup was taken over by Oracle. The entire team moved to work at Oracle. I have excellent knowledge of ETL, BigData, relational database architecture, and building high-load Data oriented solutions. I am fluent in SQL (PL/SQL), Python, and Java (Data Engineering tasks), Spark (pyspark). Familiar with the latest Oracle technologies such as Autonomous Data Warehouse (Data Lake) and Graal VM. I am also familiar with other languages .Net, Ruby, and JS. Perfectly familiar with all aspects of work organization and team management and teamwork tools.
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    JavaScript
    HTML
    SQL
    Databricks Platform
    Amazon Redshift
    Snowflake
    ETL
    PostgreSQL
    Big Data
    PySpark
    Apache Spark
    Oracle Database
    Oracle PLSQL
    Oracle APEX
  • $75 hourly

    • 5.0/5
    • (408 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.
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    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
  • $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 Real Application Clusters (RAC)
    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
  • $30 hourly

    • 5.0/5
    • (9 jobs)
    I have been working on IT industry for 10+ years. Worked as DBA on large IT project with 140+ oracle databases. I have production level installation and maintenance experience of 2 node RAC, data mirroring between two SAN using ASM, 2 node RAC database on Disaster Recovery center for SAN replication environment. I have also configured RAC-RAC and multi standby DataGuard and GoldenGate. Besides Oracle database, I have configured SQL Server 2016 cluster and replication.
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle Data Guard
    Oracle RAC
    Oracle Database Administration
    Oracle Database
    SQL
  • $70 hourly

    • 5.0/5
    • (7 jobs)
    Any kind of services for your existing and future Oracle Databases and Applications: - 10g, 11g, 12c, 18c, 19c - Oracle e-Business Suite - Oracle Access Manager and Single Sign-on - Oracle Business Intelligence - Oracle Weblogic - Oracle Enterprise Manager Cloud Control - Oracle Cloud Infrastructure - Oracle GoldenGate
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle E-Business Suite
    Oracle Applications
    Apache Tomcat
    Oracle Patching
    Oracle OBIEE Plus
    Oracle Data Guard
    Oracle PLSQL
    Oracle Database
    Oracle RAC
    SQL
  • $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 Real Application Clusters (RAC)
    Oracle Patching
    Database Administration
    Data Migration
    Oracle Cloud
    Oracle Performance Tuning
    Oracle RAC
    Oracle Upgrade
    Oracle Applications
    Oracle E-Business Suite
    Oracle Data Guard
    Oracle Database Administration
    Oracle Database
  • $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 Real Application Clusters (RAC)
    Windows 10 Administration
    Microsoft SQL Server Administration
    Oracle Performance Tuning
    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 Real Application Clusters (RAC)
    Oracle Data Guard
    Oracle RAC
    Oracle Performance Tuning
    Oracle Database Administration
    Linux
    Python
    SQL
  • $20 hourly

    • 4.8/5
    • (5 jobs)
    Hello I am Imran Hussain Heron. I have total 10 years experience about Oracle MYSQL MSSQL Database. I have significant experience with Oracle database 10g,11g R1,11g R2,12c,19c implementation and management, Database backup and recovery, Real application cluster(RAC), Physical standby (Data Guard),logical standby, Oracle web logic, Oracle grid Infrastructure 11g-19c management and administration, Oracle audit vault and database firewall . RMAN, Oracle import export , Oracle & MSSQL performance tunning,, Fusion middleware, Oracle Goldengate, Oracle gateway, Oracle & MSSQL Transparent Data Encryption, Oracle,MSSQL Database Upgradation & Migration, MSSQL AlwaysON Availability Group,Replication,Log Shipping,Mirroring,Clustering, Mysql Administration & DR implementation. Thanks for visiting my portfolio. Thanks Imran Hussain Heron
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Microsoft SQL Server Administration
    Oracle Patching
    Oracle Fusion Middleware
    Oracle Data Guard
    Oracle Database Administration
    Database Management
    Oracle APEX
    Oracle RAC
    Oracle PLSQL
    Oracle Database
    Database Administration
    MySQL
    Server
    Microsoft SQL Server
    ETL
  • $53 hourly

    • 4.5/5
    • (8 jobs)
    I am a Database Administrator with 7+ years of proven professional experience in ORACLE and SQL Server. I have hands-on experience in upkeep, configure, troubleshoot, and support Oracle 11g/12c/19c, SQL Server 16/17/19 in clustered and non-clustered configurations. I have maintained regular RMAN Backups using NetApp and NetBackup technology. I am an expert in SQL tuning, performance tuning, creating indexes as necessary, and optimize poor-performing scripts in MSSQL. I have done application and database server replication and refresh from production to non-production environment as per clients' request. I also have completed database upgrades from 10g, 11g to 12c and 19c. In addition, I have excellent knowledge in Oracle Golden Gate installation, configuration, troubleshooting GG issues. Hands-on experience with SQL Server Management Studio, MYQL Workbench, and Oracle SQL Developer. I am also skilled in performing hot/cold backup and restore and recovery of existing databases from backup. I have raised dataguard on standbys and have excellent knowledge of disaster recovery. I am also a RedHat Certified RedHat 7 System administrator. I have hands-on experience in installation, configuration, maintenance, update, monitoring, performance tuning, troubleshooting, analyze and proactively monitored Red Hat systems for the Enterprise, CentOS, Ubuntu, Debian, Fedora. I can perform daily functions such as establishing new accounts, creating and resetting passwords, developing scripts, performing system backups and recovery, installing software patches and updates, setting user and group quota, adding space to the filesystems, configure and managing LVM, etc. I can configure Nagios, Zabbix to monitor Linux systems. I have also performed the migration of Redhat Linux from physical to VMs in VMware. I am an expert in configuring IP connectivity, TCP/IP, routing, and maintaining network connectivity of servers.
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Technical Analysis
    AIX
    Database Management
    Data Recovery
    Linux System Administration
    Red Hat
    Oracle RAC
    Oracle Data Guard
    Microsoft SQL Server Administration
    Data Entry
    Microsoft Office
  • $30 hourly

    • 5.0/5
    • (5 jobs)
    I am a Sr. Database consultant with more than ten years of experience. I have broad experience in the areas of various database system namely; Oracle , MySQL , MSSQL , PostgreSQL etc. Recently I have been recognized with the Oracle Ace Associate award issued by Oracle Ace Program. I am also contributing to the oracle community since 2014 by posting various technical posts related to databases, EBS, Fusion Middleware https://dbasoumya[.]blogspot[.]com/ In the past years, I have been helping customers in implementing and configuring different versions of the Database, with capacity planning for their database and formulation of varying deployment architecture. Technical Skills: • Experience as a Database Administrator and Exadata Database machine administrator in Oracle/ Mysql / MSSQL on Linux, AIX , Solaris & Windows Platform. • Database High Availability and Disaster Recovery • Conversant with Oracle Fusion Middleware • Expert in various oracle data migration strategies like export-import, RMAN, cross-platform migration using Transportable Tablespace, etc. • Extensive experience as Oracle Application Technical Administrator in implementation, upgrade and customization of Oracle E-Business Suite Applications (R12, 11i). • Expert in Database Administration, RAC , Data Guard, Backup, and recovery • Expert as APPS DBA in EBS R 12, 11i. Certifications • Oracle Cloud Infrastructure 2019 Certified Professional • Oracle Cloud Infrastructure 2019 Certified Architect Associate • Oracle Autonomous Database Cloud 2019 Certified Specialist • Oracle Exadata Database Machine and Cloud Service 2017 Implementation Essentials • Oracle Certified Professional 11g • Oracle Certified Professional 10g • Oracle Certified Expert, Oracle 12c RAC & Grid Infrastructure Administrator • R.H.C.E (Certificate id-805010539748098) Ping me on telegram @callmesoumya Or call / whatsapp at +91 9830569464
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle Application Server
    Oracle Forms
    Linux System Administration
    Database Management
    Oracle Upgrade
    Oracle Data Guard
    Oracle RAC
    Oracle E-Business Suite
    Oracle WebLogic Server
    ETL
    Oracle Database
  • $30 hourly

    • 5.0/5
    • (6 jobs)
    Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.
    vsuc_fltilesrefresh_TrophyIcon Oracle Real Application Clusters (RAC)
    Oracle Sun Ray
    Firewall
    Iptables
    TCP/IP
    DNS
    PostgreSQL
    MySQL
    Solaris Administration
    VMware Administration
    C
    PHP
    Perl
    Bash
    Unix Shell
    Unix System Administration
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At A Glance: Oracle Real Application Clusters (RAC)

Modern computer systems commonly consist of many different components and pieces. Taking entire individual systems and stitching them together in a meaningful and efficient way is known as computer clustering. Clustering provides vast computing power for any problem that may need it without the high price tag normally associated with single systems of similar power. Oracle Real Application Clusters is a high-availability software clustering solution provided by Oracle for Oracle Database. RAC gives a distinct advantage to any business or organization that needs additional computing power when accessing a single database for web services, networking, or data analysis. RAC specialists on Upwork are available to help implement and leverage the power of Oracle RAC no matter what the need.

Oracle RAC specialists are highly trained computer technicians with experience in database management, computer clustering, and Oracle products. A RAC specialist can be available to work with you or your company on a project-to-project basis by providing consultation and resources when and where you need it most, or a specialist can work with an existing team, giving your company the edge it needs when developing and implementing a database system. Hiring a freelance Oracle RAC specialist also gives you access to a professional with working knowledge of any Oracle Database system you may already have, giving you assurance of product compatibility between Oracle Database and Oracle RAC. Oracle RAC specialists are dependable and cost-effective ways to manage high-powered database computing needs.

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