Jack Williams
jack.williams@example.com+44 20 7946 0169linkedin.com/in/jackwilliamsgithub.com/jackwilliams
Summary
DevOps engineer with 8 years improving cloud infrastructure, CI/CD, Kubernetes platforms, and release reliability.
Experienced in AWS, Terraform, GitHub Actions, observability, secrets management, incident response, and cost optimisation.
Experience
Senior DevOps Engineer
Atlas Cloud | London, UK | January 2022 - Present
- Lead platform improvements for 70 services running on EKS across 4 production environments.
- Built Terraform modules for VPC, IAM, RDS, and EKS, reducing environment build time from 3 days to 45 minutes.
- Redesigned GitHub Actions workflows with caching and package-level test selection, cutting CI time by 63%.
- Implemented blue-green deployments and rollback checks that reduced failed releases by 48%.
- Reduced monthly AWS spend by 31,000 GBP through right-sizing, Graviton migration, and NAT gateway changes.
DevOps Engineer
MedStack | Oxford, UK | June 2018 - December 2021
- Managed Kubernetes clusters, Helm charts, and deployment pipelines for regulated healthcare applications.
- Deployed Prometheus, Grafana, and Loki dashboards covering latency, traffic, errors, and saturation.
- Automated database backup and restore tests, improving recovery confidence for 22 Postgres instances.
- Implemented Vault-based secret rotation and removed 140 static credentials from application repositories.
Systems Engineer
WebForge | Cardiff, UK | August 2015 - May 2018
- Maintained Linux servers, Nginx routing, and deployment scripts for 120 customer websites.
- Automated provisioning with Ansible, reducing new server setup from 4 hours to 25 minutes.
- Improved uptime from 99.6% to 99.9% through monitoring, patching, and capacity planning.
- Documented on-call runbooks and reduced recurring incident triage time by 35%.
Skills
Cloud
AWS, EKS, RDS, IAM, CloudWatch
Infrastructure
Terraform, Kubernetes, Docker, Helm, Ansible
CI/CD
GitHub Actions, Argo CD, Blue-green deployments, Canary releases
Observability
Prometheus, Grafana, Loki, OpenTelemetry, Sentry
Education
- BSc Computer Science, University of Manchester
- AWS Certified Cloud Practitioner