Mahesh Agrawal — DevOps Engineer

With over 15 plus years of expertise as a Senior Database & Cloud Engineer, I specialize in designing, migrating, and optimizing high-availability, mission-critical database environments across Oracle Exadata, PostgreSQL, MySQL, and MongoDB. Designed and optimized logical and physical data models to ensure scalable, high-performance, and reliable database systems.Translated complex business requirements into standardized, secure, and efficient data architectures. I have successfully led enterprise-scale cloud migrations to Oracle Cloud (OCI) and AWS with zero data loss and <1% downtime, implemented RAC / Data Guard / GoldenGate for high availability, and automated performance tuning, patching, and DR workflows using Python, Bash, and CI/CD pipelines. Recognized for delivering measurable performance improvements (up to 60%), reducing ODA downtime by 40%, and enabling proactive monitoring through Prometheus & Grafana, I combine deep technical hands-on skills with strong leadership and solution design expertise. 🔹 Core Strengths: Oracle Exadata, DataGuard, GoldenGate, PostgreSQL, MongoDB, Performance Tuning, HA/DR, Cloud Migrations (OCI/AWS), Automation (Python/Shell), CI/CD, Kubernetes, DevOps 🔹 Certifications: Oracle Exadata X9M, GoldenGate, OCI Architect Associate, PMP, ITIL, Azure Infrastructure, Multicloud Architect 🌍 Open to relocate to Dubai / GCC for roles such as Senior Database Administrator, Cloud Database Engineer, or Database Architect. Portfolio Website - https://db23ai.github.io/ #OracleDatabase #PerformanceTuning #Exadata #CloudComputing #Kubernetes #Cloud #DataGuard #Database #Engineer #Senior #Architect #Solution #Infrastructor #Administrator #Postgresql #Mongodb

Stackforce AI infers this person is a Database and Cloud Engineering expert with a focus on high-availability solutions in enterprise environments.

Location: Bengaluru, Karnataka, India

Experience: 20 yrs 3 mos

Skills

Oracle Exadata
Cloud Migration
Oracle Goldengate
Cassandra
Performance Tuning
Data Guard

Career Highlights

Over 15 years of expertise in database engineering.
Led enterprise-scale cloud migrations with zero data loss.
Recognized for delivering performance improvements up to 60%.

Work Experience

Oracle

Senior Database Administrator & Cloud Engineer (4 yrs 9 mos)

Nokia Solutions and Networks Pvt Ltd

Senior Technical Leader Database (3 yrs 6 mos)

DXC Technology

Technical Leader Database (1 yr 10 mos)

Wipro

Senior Leader Database Engineer (1 yr 2 mos)

Mphasis

Senior Leader Database Administrator (1 yr 1 mo)

Teradata

Lead Technical Database Engineer (3 yrs 8 mos)

Reliance Communications

Database Administrator (4 yrs 3 mos)

Education

Master of Business Administration - MBA at Symbiosis Institute of Business Management, Pune

Master's degree at Nagpur University

Mahesh Agrawal

DevOps Engineer

Bengaluru, Karnataka, India20 yrs 3 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Over 15 years of expertise in database engineering.
Led enterprise-scale cloud migrations with zero data loss.
Recognized for delivering performance improvements up to 60%.

Stackforce AI infers this person is a Database and Cloud Engineering expert with a focus on high-availability solutions in enterprise environments.

Contact

maheshgagr@gmail.com LinkedIn

Skills

Core Skills

Oracle ExadataCloud MigrationOracle GoldengateCassandraPerformance TuningData Guard

Other Skills

Oracle Data GuardOracle Cloud Infrastructure (OCI)PostgreSQL AdministrationMongoDB AdministrationDatabase Performance TuningHigh Availability (HA) & Disaster Recovery (DR)AWS RDS & AuroraShell / Python AutomationCI/CD & DevOpsKubernetes & DockerPrometheus & GrafanaRMAN & Backup StrategySQL Plan Baselines / AWR / ASHExadata Patching & OptimizationDatabase Architecture & Design

About

Experience

Oracle

Senior Database Administrator & Cloud Engineer

Jun 2021 – Present · 4 yrs 9 mos · Bengaluru · Hybrid

Professional Projects & Key Achievements :
➤ Installed, configured, and managed OpenShift clusters (on-premises and cloud) including worker/master node provisioning, networking, storage, and monitoring.
➤ Performed cluster upgrades, patching, backup/recovery, and high availability setup.
➤ Implemented RBAC, authentication/authorization, and security best practices.Installation and ➤ Configuration of Red Hat OpenShift on KVM Virtual Machines Using UPI and Assisted Installer Methods.
➤ mplement and manage Oracle Cloud Infrastructure (OCI) security policies, IAM, and network security controls.
➤ Monitor, audit, and remediate security risks, ensuring compliance with OCI best practices.
➤ Successfully used Oracle Zero Downtime Migration (ZDM) 21.5 for seamless migrations.
➤ Migrated databases from OCI DB System to Autonomous Dedicated Container Database.
➤ Executed cross-platform online and offline database migrations using ZDM, DMS, Data Pump, and Oracle GoldenGate.
➤ Administered Oracle Exadata Database Machine including patching, storage cell management, and compute node tuning.
➤ Optimized database performance using smart scans, Hybrid Columnar Compression (HCC), and IORM.
➤ Ensured high availability through RAC, Data Guard, and proactive health monitoring.
➤ Installed, configured, and maintained PostgreSQL databases in on-prem and cloud environments.
➤ Performed query tuning, indexing strategies, and partitioning for performance optimization.
➤ Implemented backup, PITR, and replication solutions for high availability and disaster recovery.
➤ Deployed and managed MongoDB clusters including sharding and replica sets.
➤ Extensive experience in PostgreSQL database administration.
➤ Deep understanding of architecture, internals, HA, and clustering.
➤ Skilled in monitoring tools, backup/restore mechanisms, and patching/upgrades.
➤ Experienced in performance tuning, diagnostics, and database migrations.

Oracle ExadataOracle Data GuardOracle GoldenGateOracle Cloud Infrastructure (OCI)PostgreSQL AdministrationMongoDB Administration+13

Nokia solutions and networks pvt ltd

Senior Technical Leader Database

Dec 2017 – Jun 2021 · 3 yrs 6 mos · Bengaluru

Research and Development for 5G IoT and Mobile Platform
Project : Verizon Communications, USCC, Rakuten, Vodafone, Reliance Jio, Airtel
Professional Projects & Key Achievements :
Hands-on experience and worked on Oracle GoldenGate replication ensuring database replication with zero downtime. DataStax Cassandra replication for new tables, support, and patching is included in MariaDB Maxscale with HA.
◆ Global Customer Support for Downtime, Migration, Troubleshooting and RCA Calls.
◆ Implementation of security mechanism (row level security and application context)
◆ DBA support for J2EE development
◆ Design, Installation and Troubleshooting of Goldengate, Cassandra & MariaDB.
◆ Extensive PL/SQL back-end development experience.
◆ Configure Oracle Data Guard and RAC for high availability and implement zero data loss solutions.
◆ Setup and maintain Oracle GoldenGate Active-Active environments for databases.
◆ Configure Oracle Data Guard and RAC for high availability and implement zero data loss solutions
◆ Implement infrastructure automation and scripting using tools like Shell, Python, and Terraform.
◆ Troubleshoot and resolve database performance issues and tune SQL queries proficiently.
◆ Experience with elements of greater service tech stack, including containerized Kubernetes-based microservice architectures, performance testing platform and tools, JS, APMs, messaging services, API gateways.
◆ Database on-call for production and non-production during US hours as part of a 12x7 rotation.
◆ Expert in MongoDB database administration, architecture, and internals.
◆ Strong knowledge of replica sets, sharding, and high availability.
◆ Proficient in backup/restore mechanisms, database patching, and upgrades.
◆ Hands-on experience with Ops Manager for automation, monitoring, and scaling.

CassandraRMANData GuardShell ScriptingOracle RACGitHub+13

Dxc technology

Technical Leader Database

Feb 2016 – Dec 2017 · 1 yr 10 mos · Bengaluru

Project : Ahold Delhaize ( Netherlands )
Professional Projects & Key Achievements :
🔹 Advanced working knowledge of different index types and how they are used Advanced Execution
Plan understanding
🔹 Experience with performance tuning and optimization, using native monitoring and troubleshooting tools and techniques, including complex queries as well as procedure and indexing strategies
🔹 Adaptable team-player with a focus on results and value delivery
🔹 Able to organize and plan work independently & Lead various technology POCs.
🔹 Working knowledge of relational database internals (locking, consistency, serialization, recovery).
🔹 Expertise in Oracle RAC, ASM, Performance Tuning, Data Guard and DG Broker.
🔹 Experience in Zero Downtime Database Migration across platforms.
🔹 Database security & user management, including Transparent Data Encryption (TDE).
🔹 Hybrid Columnar Compression (HCC) for storage optimization.
🔹 Online conversion of tables & indexes into partitions for performance enhancement.
🔹 Disaster Recovery (DR) planning & execution with Data Guard and Oracle Golden-Gate.

Oracle RACGoldenGateDataGuardPerformance TuningUpgrade databasePatching Database+3

Wipro

Senior Leader Database Engineer

Dec 2014 – Feb 2016 · 1 yr 2 mos · Mumbai · Hybrid

Project : CITI Bank (New York, U.S.A)
Professional Projects & Key Achievements :
☛ Managed database creation, table space, user management, and troubleshooting for Oracle databases.
☛ Installed Oracle binaries, created databases, and synchronized PROD and COB servers.
☛ Experienced in RAC servers, ASM, backup & recovery, and OEM monitoring.
☛ Experience in supporting environments oracle GoldenGate starting from Version 12c, 11g and 10g.
☛ Good understanding and hands-on in Goldengate tuning.
☛ Working Knowledge in Oracle GoldenGate installation, setup and troubleshooting.
☛ Golden gate replication performance improvement for parallel setup
☛ Regular Oracle database operation and maintenance knowledge
☛ Knowledge of shell script relevant to reporting and Oracle database and GoldenGate.
☛ Knowledge of Operating system relevant to Oracle databases and GoldenGate
☛ Implemented Goldengate on Heterogeneous environment.
☛ Hands-on experience on Golden Gate Microservice.
☛ Goldengate installation, Configuration, and troubleshooting various issues on Primary and ADG databases and Generating Golden gate reports and monitoring by OEM on an hourly basis.
☛ Knowledge of Goldengate High Availability configuration.
☛ Knowledge of Cluster file system (ACFS/DBFS).
☛ Zero downtime database upgrade using Goldengate.
☛ Bidirectional Goldengate configuration.
☛ Hands-on experience Goldengate downstream configuration.

Mphasis

Senior Leader Database Administrator

Nov 2013 – Dec 2014 · 1 yr 1 mo · Pune

Project : Charles Schwab ( Texas, United States )
Professional Projects & Key Achievements :
📌 Expertise in Oracle RAC, ASM, Performance Tuning, Data Guard (Physical & Logical), and DG Broker.
📌 Experience in Zero Downtime Database Migration across platforms.
📌 Database security & user management, including Transparent Data Encryption (TDE).
📌 Hybrid Columnar Compression (HCC) for storage optimization.
📌 Online conversion of tables & indexes into partitions for performance enhancement.
📌 Disaster Recovery (DR) planning & execution with Data Guard and Oracle Golden-Gate.
📌 Expertise in Exadata administration, performance tuning, patching, and migrations across different Exadata machines.
📌 Strong knowledge of Exadata-specific features (Smart Scan, Flash Cache, HCC) and ILOM for hardware monitoring.
📌 Experience in preventive & reactive maintenance (disks, flashcards, batteries, FDOM).
📌 Hands-on experience in Zero Downtime Exadata Migration, including cross-platform database migrations using OGG, Transportable Tablespaces, and Data Pump.

Teradata

Lead Technical Database Engineer

Nov 2009 – Jul 2013 · 3 yrs 8 mos · Mumbai

Project : Anheuser-Busch InBev ( St. Louis )
Professional Projects & Key Achievements :
🎯 Conduct MVC analysis to identify tables suitable for compression.
🎯 Perform data copy requests (backup and restore) using the NetBackup tool to facilitate data movement across servers.
🎯 Support project teams in environment preparation.
🎯 Manage Teradata production servers and handle backup/restoration operations via the NetBackup tool.
🎯 Perform QA checks on DDLs for newly introduced tables in Logical Data Models (LDMs).
🎯 Finalize DDLs using the DDL QA check process before publishing them into the development repository.
🎯 Conduct code reviews on test systems to assess performance.
🎯 Lead weekly technical and process change discussions with clients.
🎯 Perform workload-level analysis and generate detailed reports.
🎯 Optimize system performance by fine-tuning TASM rule sets.
🎯 Identify and isolate problematic sessions by classifying them into the penalty box.
🎯 Analyze workload-related issues such as increased delay counts and workload demotions.
🎯 Optimize workloads by implementing filters and throttles.
🎯 Prioritize jobs effectively, ensuring the right priority for each task.
🎯 Manage system-level and workload-level filters/throttles.

Reliance communications

Database Administrator

Aug 2005 – Nov 2009 · 4 yrs 3 mos · Mumbai

Project : Inhouse CDMA Mobile Network Product development ( Mumbai, India)
Professional Projects & Key Achievements :
🚀 Install, configure, and upgrade database software to meet performance needs.
🚀 Monitor and optimize database performance, addressing bottlenecks and implementing tuning strategies.
🚀 Develop and manage backup, recovery, and disaster recovery plans to ensure data integrity.
🚀 Administer database security, user access, and compliance with data policies.
🚀 Ensure data accuracy through validation procedures and adherence to standards.
🚀 Conduct capacity planning to support scalability and future growth.
🚀 Troubleshoot database issues, collaborating with IT teams for resolution.
🚀 Maintain documentation of configurations, procedures, and system changes.
🚀 Generate reports on database performance and usage for informed decision-making.
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