Jobs / Semble
Senior Platform Engineer
Semble · London, ENG, United Kingdom
London, ENG, United KingdomExp: 3-5 yrsRemote
Remuneration
36 days off; private health insurance
Location
London, ENG, United Kingdom
Visa sponsorship
Not specified
Job summary
The Senior Platform Engineer evolves the engineering platform and improves how engineers build, deploy, and operate services. The role combines developer productivity work—including self-service tooling, golden paths, documentation, and enablement—with reliable cloud infrastructure across AWS, Kubernetes (EKS), and MongoDB Cloud. It also covers Terraform-based infrastructure, GitOps CI/CD with ArgoCD, observability, production reliability, security, and mentoring engineers.
Benefits
36 days off, including holidays, bank holidays, and additional daysPrivate health insurance covering physical and mental health, dental, and opticaChoice of MacBook or Windows computerHome office equipment
Qualifications
- 3–5 years of software engineering experience, ideally including product or application engineering.
- Experience building or contributing to internal developer platforms, portals, or self-service tooling.
- Experience designing paved roads or golden paths for engineering teams.
- Experience improving CI/CD speed, reliability, and developer feedback loops.
- Experience with developer documentation, training, pairing, or engineering enablement.
- Experience using developer experience metrics or frameworks such as DORA, SPACE, or internal surveys.
- Proficiency in Go, Python, TypeScript, or strong shell scripting.
- Strong understanding of AWS services, including IAM, S3, EC2, EKS, RDS, and Lambda.
- Experience operating and troubleshooting production Kubernetes clusters in a multi-tenant environment.
- Experience with Terraform and configuration or deployment tooling such as Helm.
- Hands-on experience with GitOps CI/CD tools such as Argo CD or Flux.
- Experience with MongoDB or similar managed database platforms.
- Experience monitoring and operating production systems with tools such as Datadog, Prometheus, or Grafana.
- Experience working in a standards-compliant environment such as ISO 27001.
Responsibilities
- Build and improve self-service tooling, project templates, and golden paths.
- Improve engineer onboarding and time to first production contribution.
- Run or contribute to workshops, office hours, and other engineering enablement initiatives.
- Maintain clear, discoverable documentation and runbooks.
- Use developer feedback and experience metrics to guide platform priorities.
- Contribute to observability-as-code initiatives.
- Operate and improve AWS, Kubernetes (EKS), and MongoDB Cloud infrastructure.
- Improve production uptime, graceful degradation, and automated recovery.
- Modernize CI/CD pipelines using GitOps practices.
- Improve Terraform infrastructure code for consistency, reuse, and safety.
- Establish or improve infrastructure SLAs and SLOs.
- Work with Security to improve compliance and security posture.
- Identify and deliver infrastructure cost savings.
- Make architectural decisions, mentor engineers, and represent platform priorities across teams.
Skills
Argo CDAWSBackstageBashDatadogEKSFluxGoGrafanaHelmIAMKubernetesAWS LambdaMongoDBPrometheusPythonS3TerraformTypeScriptWindowsmacOS
Languages
GoPythonTypeScript
Industry
Healthcare
Relocation
No