Hemanth Kumar B R
DevOps Engineer / Site Reliability Engineer
DevOps Engineer / SRE with 5+ years of experience in AWS, Docker, Linux, Kubernetes and CI/CD automation. Skilled in deploying, scaling, and troubleshooting production systems with a strong focus on reliability, incident management, and automation. AWS Certified and passionate about simplifying workflows and improving operational efficiency.
Skills
Experience
Site Reliability Engineer — Yahoo Inc
Sept 2024 — Present | Bengaluru- Managed and supported large-scale distributed infrastructure across on-prem and AWS, ensuring reliable execution of production batch workflows.
- Monitored and troubleshot Oozie-based ETL pipelines on large-scale Hadoop clusters, improving stability and on-time execution.
- Automated AWS infrastructure provisioning using Terraform and CloudFormation, standardizing environments and reducing deployment time.
- Built Python/Bash automations to handle ~90% of infrastructure alerts, saving 200+ engineering hours and improving operational efficiency.
- Resolved 50+ P1/P2 incidents using Rootly and PagerDuty, improving MTTR by 35% through automated diagnostics and reusable runbooks.
DevOps Engineer — Cambium Networks Pvt. Ltd
Oct 2021 — Aug 2024 | Bengaluru- Automated PR approvals and unit test execution using Jenkins webhooks, removing manual intervention and accelerating CI pipeline throughput.
- Led the migration of Jenkins build infrastructure from on-prem to ephemeral AWS instances, managing 20+ independent Jenkins slaves, improving scalability and reducing infrastructure costs.
- Owned and maintained AWS infrastructure for 3+ microservices, ensuring high availability, observability, and performance through SRE best practices.
- Deployed and managed infrastructure using AWS CloudFormation and automated configuration management with SaltStack for consistent multi-environment setups.
DevOps Engineer — L&T Technology Services
July 2019 — Oct 2021 | Bengaluru- Designed and maintained Jenkins pipelines to automate CI workflows, improving build and test efficiency by 40%.
- Automated hardware testing workflows using Python, reducing manual effort and improving test reliability.
- Provisioned and managed Linux-based environments for development and QA, building strong hands-on systems expertise.
- Collaborated with developers and QA teams to streamline deployments and integrate automation across stages.
Projects
CI Pipeline Automation using Jenkins
Tech: Python, Jenkins, Webhooks, Git, Shell
Automated pull request approvals and unit test execution, eliminating manual steps and reducing build latency by 50%.
Microservice CI/CD Pipeline Setup
Tech: AWS (Lambda, ECS Fargate, CloudFormation), Jenkins, Docker, Python
Designed and implemented a complete CI/CD pipeline for a regional microservice, deploying Lambda and ECS Fargate services with infrastructure as code.
AWS Cost Optimization with Parameter Store & Lambda
Tech: AWS Lambda, Parameter Store, Python
Replaced hardcoded AWS credentials with automated key rotation using Parameter Store and Lambda, improving security and reducing human error.
Education
New Horizon College of Engineering — B.E Electronics and Communications (2015 - 2019)
Contact
Email: hemanthhh4680@gmail.com
Phone: +91 9738328027
Location: Bengaluru, India
LinkedIn: LinkedIn Profile