Contributed to the migration of the whole infrastructure from VM-based to Kubernetes with support for zero-downtime deployment, option to roll back deployments, and canary-based deployments. Revamped the entire CI/CD process using Jenkins.

Managed three DevOps engineers following the practice of Agile-based methodologies along with support for managing the production system. Set up a production-ready system with Prometheus, Papertrail, Jaeger, and Istio.

Did capacity and AWS cost estimation for a big data application with workloads for real-time data of 3 GB/min and storage of 2 TB in Cassandra. Managed distributed systems including Kafka, Cassandra, Spark, Flink, and Akka Clusters in Kubernetes.

Worked as part of multiple engagements ranging from startups to massive enterprises and led many projects involving various technology stacks. Followed TDD and agile (XP/lean) methodologies in all teams and tech stacks.

Set up an authentication system for a popular bank in Spain and handled many requests. Chose the tools to track performance and utilize the infrastructure efficiently. Used Kubernetes, Go, Prometheus, Redis, and Elasticsearch.

Worked at a client's location (UK) to refactor their core pricing engine. Followed a strangulation approach and, in the process, improved their CI/CD pipelines.

Built a type of warehouse management software for one of the enterprise companies and was responsible for developing the back-end system using Java, Spring, and JPA technology stack.

Developed a high-performance, real-time bidding engine which handles millions of requests in Scala and Akka framework.

Set up virtual machines using Ansible and Bash scripts and used Jenkins for continuous integration and deployment.

Contributed to the Oracle E-Business Suite development and handled the EU region's payroll system.

Implemented performance fine-tuning for a Java virtual machine (JVM) and analyzed and optimized SQL query performance.

Handled multiple clients for the EU region and was in charge of a complete module.