Senior Platform Engineer
Summary
Senior Platform Engineer at a SaaS company, owning the internal developer platform: building and maintaining Kubernetes infrastructure on AWS, running CI/CD and GitOps pipelines, improving observability and security, and mentoring a small team. Core stack: AWS, Kubernetes, Docker, Terraform, Python/Go.
Salary: £75,000 - 75,000 per year
Requirements:- 5 years of experience in platform, DevOps, or SRE roles
- Strong hands-on experience with Kubernetes and Docker
- Production experience with AWS
- Proficiency in Terraform or equivalent infrastructure-as-code tools
- Scripting ability in Python or Go
- Experience with CI/CD tools such as GitHub Actions, GitLab CI, or Jenkins
- Applicants must not require sponsorship
- Experience with ArgoCD or Flux is desirable
- Experience with Prometheus, Grafana, or Datadog is desirable
- Exposure to SOC 2 or ISO 27001 environments is desirable
- Previous team leadership or mentoring experience is desirable
- Design, build, and maintain Kubernetes-based infrastructure on AWS
- Own CI/CD pipelines and drive adoption of GitOps practices
- Build self-service tools that enable product teams to ship without platform bottlenecks
- Improve observability, incident response, and SLO tracking
- Lead infrastructure-as-code standards using Terraform
- Champion security and cost optimisation across the platform
- Mentor a small team of engineers
- AWS
- ArgoCD
- CI/CD
- Cloud
- Datadog
- DevOps
- Docker
- GitHub
- GitLab
- GitOps
- Grafana
- Support
- Jenkins
- Kubernetes
- Prometheus
- Python
- Security
- Terraform
More:
We are scaling our cloud infrastructure to support a fast-growing SaaS product used by a large base of enterprise customers. In this Senior Platform Engineer role, you will own our internal developer platform and help improve reliability and deployment speed. We offer 28 days of holiday plus bank holidays, a pension with a 6% employer contribution, a £1,500 annual learning budget, flexible working hours, and a modern tech stack with dedicated time for engineering improvement.
last updated 40 week of 2026