Hi! I'm a Oracle Database Administrator with 10+ years of hands-on experience, specializing in Oracle 11g/12c/19c upgrades, performance tuning, RMAN backup/recovery, Data Guard, RAC, and multitenant architecture. I’m also skilled in managing Oracle environments on AWS cloud platforms, including RDS and EC2 deployments.
Alongside my technical background, I’ve worked as a Virtual Assistant (VA) for both IT and Non-IT clients on Upwork, providing reliable support with:
Managing and responding to emails professionally
Calendar and appointment scheduling
Data entry and report preparation
Technical support and ticket handling
Web research and documentation
Admin support for remote teams
I’m highly organized, detail-oriented, and known for my clear communication and problem-solving approach. Whether you need database support, cloud expertise, or a trustworthy VA to keep your operations smooth, I’m here to help.
Oracle Database Administration
Oracle Database
Backup & Migration
Oracle Enterprise Service Bus
Oracle GoldenGate
Oracle Upgrade
Oracle Patching
Disaster Recovery
Oracle Data Guard
Rizwana B.
Pune, India
$30/hr
5.0
50 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:
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- 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
- Migration from oracle to databriks
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 :
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- Installation, upgrade minor and major
- AWS Auroa RDA - postgres
- troubleshooting
- performance analysis
Replication:
Using golden gate
Shareplex
Debezium log miner and Openlogreplicator
Oracle Database Administration
Database Administration
Linux
Amazon RDS
Oracle RAC
Oracle Upgrade
Oracle Data Guard
Cloud Migration
Performance Optimization
Mohammad Yunus Ilyas S.
Thane, India
$20/hr
5.0
12 jobs
I bring 17 years of hands-on experience and expertise in managing, optimizing, and automating complex IT infrastructures. My professional journey has spanned diverse technologies, from database administration to DevOps, monitoring tools, and scripting, ensuring that I deliver reliable and efficient solutions tailored to client needs.
Key Expertise Areas:
1. Database Administration:
• MySQL, MariaDB, and Percona Server for MySQL
• Galera Cluster for high availability
• Advanced backup and recovery solutions with Xtrabackup
• Query optimization, performance tuning, and Orchestrator for MySQL replication management
2. Load Balancing and Proxy Management:
• Expertise in ProxySQL and HAProxy for scalable and high-performing systems
3. Containerization & Orchestration:
• Proficient in Docker and Kubernetes for deploying and managing applications in scalable, containerized environments
4. System Administration:
• Linux and Windows system administration
• Automation using tools like CHEF and Ansible for configuration management
5. Monitoring & Alerting Tools:
• Skilled in setting up and maintaining Zabbix, Grafana, Icinga, Nagios, Prometheus, and Loki for real-time system monitoring
6. Scripting & Automation:
• Bash and Python scripting for task automation, monitoring enhancements, and custom solutions
Why Work with Me?
• Proven Track Record: Over 17 years of successfully solving complex challenges and delivering impactful results
• Versatility: In-depth knowledge across diverse technologies and platforms
• Client-Focused: Tailored solutions to meet unique business requirements, with a strong emphasis on reliability and performance
If you’re looking for a dependable expert to optimize your databases, manage your systems, or implement scalable DevOps solutions, I’m here to help. Let’s discuss how I can bring value to your project!
Microsoft Azure
Apache Tomcat
Linux System Administration
Microsoft Azure SQL Database
Nagios Core
MySQL
Amazon RDS
Amazon EC2
Amazon Aurora
Linux
Grafana
Windows Server
MariaDB
High Availability and Disaster Recovery
Apache HTTP Server
Mohakkumar R.
Ahmedabad, India
$15/hr
5.0
12 jobs
With over 9 years of experience as a Database Administrator (DBA) and Developer, I specialize in Microsoft SQL Server (MSSQL), MySQL, and PostgreSQL. My expertise spans across database administration, development, performance tuning, security, high availability, and business intelligence (BI) solutions. Having worked extensively in the US healthcare and telecom sectors, I have developed a strong understanding of managing mission-critical databases, ensuring data integrity, optimizing performance, and implementing security best practices.
1. Database Administration (MSSQL | MySQL | PostgreSQL)
Managing enterprise-grade databases requires precision, and I ensure smooth operations through:
✔ Database health monitoring – Proactive tracking of server performance and system resources
✔ Performance tuning & troubleshooting – Optimizing indexes, execution plans, and query structures
✔ Backup & disaster recovery (HA/DR) solutions – Implementing Always-On, Replication, Mirroring, and Clustering for high availability
✔ Security & access control – Implementing role-based access, encryption, and compliance-driven security measures
✔ Server migration & upgrades – Seamlessly transitioning databases across different environments
2. SQL Development & Query Optimization
A well-optimized database accelerates business applications. My SQL development skills include:
✔ T-SQL, PL/pgSQL & Stored Procedure Development – Writing efficient queries for high-volume transactions
✔ Query performance tuning & indexing – Enhancing speed and efficiency of data retrieval processes
✔ Managing heap tables & statistics collection – Optimizing data structures for better performance
✔ Execution plan analysis & partitioning – Leveraging advanced database techniques for scalability
3. Business Intelligence (BI) & Data Analytics
Transforming raw data into meaningful insights is crucial for modern businesses. I specialize in:
✔ Data Warehousing & ETL (Extract, Transform, Load) Processes – Managing structured data for analytics
✔ SSIS & Power BI – Creating automated data pipelines and business intelligence reports
✔ SSRS & PostgreSQL Reporting – Developing interactive reports for informed decision-making
4. Compliance, Auditing & Security Management
Handling sensitive data requires strict security measures. My security and compliance expertise includes:
✔ Database auditing & monitoring – Ensuring accountability and tracking user activities
✔ Regulatory compliance – Implementing HIPAA, GDPR, and other industry standards
✔ Security hardening & encryption – Preventing unauthorized access and safeguarding critical information
Performance Optimization
Data Migration
Microsoft SQL Server
Database Maintenance
Database Administration
Microsoft SQL Server Administration
Database Programming
SQL Programming
Business Intelligence
Microsoft SQL Server Reporting Services
Data Warehousing
Microsoft SQL Server Programming
Microsoft Azure SQL Database
MySQL Programming
PostgreSQL Programming
Bala M.
Chennai, India
$20/hr
5.0
3 jobs
I am a Senior Database Administrator & Database Architect with 10+ years of hands-on experience in RDBMS and Graph Databases, specializing in large-scale database migration, cloud modernization, and performance optimization for mission-critical systems.
I have successfully delivered end-to-end database migrations and modernization programs across FinTech, Logistics, Healthcare, and Enterprise platforms, supporting clients in Singapore, UK, UAE, and South America. My work focuses on building highly available, scalable, and performance-optimized database environments on AWS and Azure.
What I Do Best
• End-to-end database migration and modernization with zero or minimal downtime
• Performance tuning and query optimization for large, high-volume databases
• Cloud-native database architecture and HA/DR implementation
• Graph database modeling and optimization using AWS Neptune
• Automation-driven DBA operations to reduce risk and manual effort
Key Services I Offer
Database Migration & Modernization
• SQL Server → PostgreSQL / MySQL / Aurora
• Oracle → PostgreSQL
• SQL Server → AWS Neptune (Graph Database)
• IBM DB2 → Aurora PostgreSQL
• On-premises → AWS / Azure cloud migrations
• Checksum-validated, low-downtime migration strategies
Database Performance Optimization
• Query rewrite and execution plan optimization
• Index strategy design and tuning
• Bottleneck identification for large datasets
• Achieved 5x–20x performance improvements on critical workloads
Cloud Database Engineering (AWS & Azure)
• Amazon RDS, Aurora, EC2-hosted databases
• AWS DMS migration pipelines
• High Availability, Multi-AZ, failover & DR design
• Monitoring and optimization using CloudWatch and Performance Insights
Graph Database Engineering
• AWS Neptune setup, tuning, and scaling
• Gremlin and Cypher query optimization
• Graph data modeling for complex relationships
• SQL-to-Graph data transformation and integration
Scripting & Automation
• Python automation for ETL, migration, validation, and reporting
• PowerShell and Bash scripting for DBA operations
• Environment refresh automation for Dev / QA / UAT / Prod
Reporting & ETL
• SSIS, SSRS, Azure Data Tools (ADT)
• Data warehouse design and transformation pipelines
Technical Expertise
• Databases: SQL Server, MySQL, PostgreSQL, Oracle, MongoDB, AWS Neptune, IBM DB2
• Query Languages: T-SQL, PgSQL, PL/SQL, Gremlin, Cypher
• Cloud: AWS (RDS, Aurora, EC2, DMS, Redshift, VPC, KMS), Azure (IaaS / PaaS)
• Scripting: Python, PowerShell, Bash
• Tools: SSIS, SSRS, CloudWatch, SQL Profiler, Query Store, Performance Monitor
Why Clients Choose Me
• Proven experience with complex, high-risk migrations
• Strong focus on data integrity, performance, and reliability
• Clear communication and ownership from planning to delivery
• Solutions built for long-term stability and scalability
If you need a reliable DBA, migration specialist, or performance expert who can take full ownership and deliver results with precision, I’m ready to help.
Oracle Database Administration
Database Management
Database Administration
Database Development
Database Maintenance
PostgreSQL
PostgreSQL Programming
SQL Programming
SQL Server Integration Services
MySQL
Cloud Database
Graph Database
Snowflake
IBM Db2
Database Architecture
Amandeep S.
Mohali, India
$25/hr
5.0
3 jobs
Oracle APEX | Oracle Developer | Oracle Forms | Database | ERP | 15+ Years of Experience
I am a highly skilled IT professional with over 15 years of experience specializing in Oracle technologies, full-stack development, and quality assurance testing. My expertise includes Oracle Developer, Oracle Forms, Oracle Reports, Oracle Applications/EBS Technical, Oracle APEX, and enterprise application development.
➡️Core Expertise
▪️ Oracle Developer, Oracle Forms & Oracle Reports
▪️ Oracle Applications (EBS) Technical Development
▪️ Oracle APEX Application Development
▪️ Oracle Fusion Cloud Solutions
▪️ Oracle Integration Cloud (OIC)
▪️ OTBI & BI Publisher (BIP) Reporting
▪️ Full-Stack Web Development
▪️ API & Third-Party System Integrations
▪️ Database Design & Performance Optimization
▪️ QA Testing & Application Validation
➡️Key Strengths
Oracle Fusion Cloud & Enterprise Solutions
Designing, developing, and integrating enterprise-grade Oracle Fusion Cloud solutions to streamline business operations and improve efficiency.
➡️Integration Development
Building seamless integrations between enterprise platforms such as Oracle, QuickBooks Online, and other third-party systems for automated and reliable workflows.
➡️Performance & Security Optimization
Developing secure, scalable, and optimized applications that deliver high performance and long-term reliability.
➡️Why Work With Me?
▪️ Proven track record of delivering successful projects on time and within budget
▪️ Strong analytical and problem-solving abilities
▪️ Excellent communication and collaboration skills
▪️ Commitment to quality, stability, and long-term support
▪️ Dedicated post-deployment maintenance and support
I am passionate about transforming complex business requirements into practical, user-friendly, and efficient solutions. Whether you need Oracle Fusion Cloud development, Oracle EBS support, custom enterprise applications, integration services, or full-stack development, I am committed to delivering results that drive business success.
Let’s connect to discuss your project requirements and how I can contribute to your success.
Oracle Database
Oracle
Oracle Cloud
Oracle Forms
WordPress
Figma
Oracle CRM On Demand
Shopify
UI/UX Prototyping
Project Management
WordPress Theme
Oracle Application Framework
Oracle Reports
Oracle Accounting
Oracle NetSuite
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