40+ DevOps Engineer Resume Bullet Points You Can Adapt Fast

GitHub Actions pipeline

• Built a GitHub Actions workflow with lint, test, Docker build, and push stages; reduced manual pre-release checklist from 8 steps to a single merge event.
• Added branch protection rules requiring CI to pass before merge; caught 2 unit test regressions in the first week of use.
• Set up Dependabot for automated dependency updates; kept 3 project repositories current on minor/patch versions without manual tracking.
• Configured Docker layer caching in CI; reduced average build time from 4 minutes to 90 seconds.

Containerization and cloud basics

• Containerized a Python Flask app with a multi-stage Dockerfile; reduced final image size from 1.2 GB to 180 MB.
• Deployed to AWS EC2 with Docker Compose; wrote a bootstrap script so any developer could launch the full stack in under 5 minutes.
• Set up S3 bucket policies and lifecycle rules for log archiving; automated a weekly manual rotation task.
• Configured a basic Nginx reverse proxy for a 2-service setup; documented the config so it could be reused as a template.

Infrastructure support

• Contributed to a Terraform module for EC2 provisioning during an internship; added variable validation that caught 2 invalid inputs before apply.
• Documented a runbook for a common alert response; reduced time-to-resolution for that alert category from 30 minutes to 10 minutes.
• Set up a Grafana dashboard for CPU and memory metrics on 4 services; gave the on-call team a first-look visibility panel.
• Identified and removed 3 unused IAM roles in a cleanup task; reduced the attack surface flagged in a quarterly security review.

CI/CD optimization

• Rebuilt a Jenkins pipeline to GitHub Actions with parallelized test stages; reduced average build time from 28 minutes to 7 minutes.
• Implemented blue-green deployment for 4 microservices; eliminated downtime during releases on a 99.9%-SLA platform.
• Automated security scanning with Trivy in CI; caught 2 critical container CVEs before they reached the staging environment.
• Built self-service deployment pipeline for 3 teams; reduced infrastructure-change tickets to the platform team by 45%.

Infrastructure-as-code

• Modularized Terraform codebase; reduced code duplication by 60% and enabled consistent provisioning across dev, staging, and production.
• Provisioned Kubernetes clusters with Helm and automated upgrades with Flux CD; standardized releases across 3 environments.
• Implemented cost tagging in Terraform; surfaced per-team cloud spend and reduced untagged resource cost by 90%.
• Added Terraform state locking with S3 + DynamoDB; eliminated 4 concurrent-apply conflicts that had previously required manual recovery.

Observability and on-call

• Built Prometheus and Grafana dashboards for 5 services; enabled the on-call team to identify error-rate spikes 3× faster.
• Standardized runbooks for the top 5 alert categories; reduced average MTTR for those alerts from 38 minutes to 14 minutes.
• Set up distributed tracing with OpenTelemetry; reduced root-cause analysis time from 45 minutes to 11 minutes for a cross-service latency issue.
• Implemented log aggregation with Loki and Grafana; enabled structured search that replaced manual SSH-grep sessions for incident diagnosis.

Kubernetes and service mesh

• Designed Kubernetes cluster architecture across 2 regions with automated failover; achieved 99.98% uptime over 12 months post-migration.
• Implemented Istio service mesh; unified mTLS, traffic management, and observability across 12 microservices without per-service code changes.
• Built GitOps workflow with Flux CD and policy-as-code via OPA; eliminated manual kubectl apply operations across the entire platform.
• Reduced cluster cost by 28% via Karpenter node auto-provisioning; matched instance types to workload profiles rather than maintaining fixed node pools.

SRE and compliance

• Implemented SLO dashboards and error budget alerts for 15 services; enabled product teams to make data-driven reliability vs velocity trade-offs.
• Led disaster recovery testing program; validated RTO of under 2 hours for 4 critical databases, meeting contractual commitments for 3 enterprise customers.
• Designed secrets management migration from hardcoded environment variables to Vault; eliminated plain-text credential exposure across 8 services.
• Automated CIS benchmark compliance checks in CI; blocked 6 infrastructure changes that would have introduced non-compliant configurations.