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Ranjanabha Bhattacharya

@ranjanabhabhattachar

Lead DevOps Engineer at TATA Consultancy Services, automating AWS and Kubernetes delivery for critical business applications.

United Kingdom

Message

At TATA Consultancy Services, I lead DevOps initiatives for critical business applications, designing cloud migrations and automating delivery with AWS, Docker, Kubernetes, Terraform, and Jenkins. I also support cloud-native delivery on Google Cloud Platform and work on disaster recovery, secure cloud access, and production reliability.

Earlier at TATA Consultancy Services in India, I helped migrate legacy systems to AWS, reducing operational costs by 30%, and created Grafana dashboards that reduced incident response times by 40%. I also improved CI/CD pipelines, reducing deployment failure rates by 25%, and began my career supporting enterprise applications and build and release processes.

Experience

Work history, roles, and key accomplishments

Current

Lead DevOps Engineer

Current

Tata Consultancy Services

Nov 2021 - Present (4 years 11 months)

Leading DevOps initiatives for critical business applications, designing cloud migration strategies, and automating with AWS, Docker, Kubernetes, Terraform, and Jenkins. Managing incident response and mentoring junior engineers.

AWS Docker Kubernetes Terraform Jenkins ELK AppDynamics IAM CloudFormation CI CD Disaster Recovery Load Balancing

Senior DevOps Engineer

Tata Consultancy Services

Oct 2016 - Nov 2021 (5 years 1 month)

Spearheaded DevOps strategies for cloud infrastructure, integrating AWS services and driving automation. Implemented monitoring with Grafana and ELK, and led migration of legacy systems to AWS, reducing operational costs by 30%.

AWS S3 IAM Lambda Kubernetes Amazon EKS Docker Grafana ELK Terraform CI CD Docker Swarm

DevOps Engineer

Tata Consultancy Services

Jun 2011 - Oct 2016 (5 years 4 months)

Managed Jenkins for CI/CD pipeline automation and coordinated cloud migration efforts with AWS and Kafka. Automated deployment processes and integrated AWS Lambda, S3, and SNS for event-driven architectures.

Jenkins AWS Kafka Lambda S3 SNS Terraform Nagios ELK REST APIs CI CD

Build and Release Engineer

Tata Consultancy Services

Jan 2008 - Jun 2011 (3 years 5 months)

Managed the software build and deployment lifecycle, automating build processes with Jenkins, Maven, and Git. Coordinated software releases and implemented build automation tools, reducing deployment preparation times by 50%.

Jenkins Maven Git Build Automation Release Management Version Control Deployment

System Engineer

Tata Consultancy Services

Dec 2006 - Dec 2007 (1 year)

Provided system administration support for enterprise applications, configuring application servers like Tomcat and WebLogic. Offered production support for Java-based applications and conducted system audits.

System Administration Tomcat Web Logic Java Troubleshooting Performance Optimization Automation Security Audits