Role: Sr. Devops Engineer

Total Experience: 6+ Yrs

Core Responsibilities:

Cloud & Infrastructure (AWS):

- Provision and maintain AWS services (EC2, VPC, IAM, S3, ALB, CloudWatch).

- Define infrastructure using AWS CloudFormation; handle cost optimization and migration strategies.

- Manage DynamoDB tables, including partition keys, sort keys, indexes, capacity settings, backups, and performance monitoring.

- Configure and manage Amazon SQS queues, including visibility timeouts, message retention, encryption, access policies, and dead-letter queues.

- Configure AWS IoT Core, including Things, certificates, device policies, MQTT topics, rules, and secure device-to-cloud communication.

- Configure AWS IoT Rules to route and process device data through services such as Amazon SQS, DynamoDB, Lambda, and S3.

CI/CD & Release Management:

- Build and optimize automated pipelines with Jenkins (Groovy libraries), GitLab CI, and GitHub Actions.

- Hands-on experience managing GitLab self-hosted servers is mandatory.

- Execute zero-downtime, blue-green, and rolling deployment strategies with automated testing and rollbacks.

Containerization & Web Infrastructure:

- Optimize Docker images, multi-stage builds, and container networking.

- Administer Nginx and Apache reverse proxies, load balancers, CDN caching, and SSL/TLS management.

DevSecOps & Secrets Management:

- Integrate security tools (Trivy, Gitleaks, OWASP ZAP, SAST/DAST) directly into CI/CD workflows.

- Manage secrets using HashiCorp Vault and AWS Secrets Manager; enforce least-privilege policies and server hardening.

Observability & Operations:

- Set up monitoring & alerting using Prometheus & Grafana (SLOs, custom metrics).

- Build centralized log collection using Loki, ELK, or OpenSearch.

- Manage database & cache backends (MySQL, PostgreSQL, Redis)handling backups, replication, and query debugging.

Automation & Scripting:

- Write production scripts using Python, Bash, and Groovy to automate operational tasks.

Technical Leadership & Incident Response:

- Lead architecture reviews, conduct Root Cause Analysis (RCA) on production incidents, maintain runbooks, and mentor junior engineers.