Sangeeth Kumar

Monitoring & Observability - I implemented and maintained monitoring solutions using AppDynamics, Datadog, Grafana, and Prometheus to keep an eye on application and infrastructure health. By integrating OpenTelemetry and Vector, I enabled distributed tracing and centralized log aggregation across microservices, which helped the team quickly identify and troubleshoot issues. I also set up alerting rules and created dashboards to track system performance, latency, and usage metrics in real time.

Containerization & Orchestration - I built and deployed applications in Docker containers and managed their orchestration on Kubernetes clusters. This involved designing and maintaining Kubernetes manifests like Deployments, Services, ConfigMaps, and Helm charts to ensure our microservices could scale smoothly and reliably.

CI/CD Pipelines - I automated build and deployment processes using Concourse CI, making our delivery pipelines faster and more reliable. I worked closely with developers to continuously improve these pipelines and reduce bottlenecks, helping the team ship features more efficiently.

Scripting & Automation - To reduce manual effort, I wrote reusable scripts in Python and PowerShell for tasks like system maintenance, reporting, and deployments. I also automated routine jobs such as health checks, backups, and log rotations across Linux servers, improving overall operational efficiency.

Infrastructure & System Management - I managed Linux servers (Ubuntu and CentOS), handling everything from configuration and patching to system hardening. I was involved in performance tuning and helped troubleshoot production issues to keep systems running smoothly.

Collaboration & Best Practices - Working closely with development, QA, and security teams in an Agile environment, I supported high-availability systems and ensured smooth coordination across teams. I also contributed to internal documentation and knowledge-sharing sessions to promote best practices within the DevOps team.

CI/CD & Source Code Management - Worked with GitLab and Git for source code version control and repository management.

Automated build and deployment pipelines using Jenkins,

including installation and configuration on Linux systems.

Created a Jenkins master-slave setup to enable parallel builds

using a build farm, improving pipeline performance.

Responsible for compiling source code using Maven and

packaging it into distributable formats like JAR, WAR, and EAR

files.

Managed and maintained CI/CD pipelines across multiple

environments to support consistent, repeatable deployments.

Ensured best practices in the Software Development Lifecycle

(SDLC) and implemented system security measures.

DevOps Tooling & Infrastructure Automation - Hands-on experience installing and administering tools such as GitLab, Jenkins, Docker, and Tomcat on both Windows and Linux platforms.

Built and maintained virtual machines and containers using Docker and Kubernetes, including container networking, volumes, and Swarm setups.

Managed continuous integration and delivery pipelines, optimizing for scalability and efficiency.

Microservices & Monitoring - Experience in deploying and supporting applications built on microservices architecture.

Set up Docker container monitoring across different hosts using Prometheus and Grafana, enabling observability and proactive issue resolution.