FocalWorks - Senior DevOps Engineer

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.