At a Glance
- Tasks: Own and operate a multi-account AWS estate, build CI/CD pipelines, and enhance observability products.
- Company: Cloud Gateway, a leading UK managed network security provider.
- Benefits: Competitive salary, hybrid work model, and opportunities for professional growth.
- Other info: Join a small, dynamic team where your contributions are valued and visible.
- Why this job: Make a real impact supporting critical government services with cutting-edge technology.
- Qualifications: Strong AWS and Terraform experience, plus skills in CI/CD and Docker.
The predicted salary is between 63000 - 77000 £ per year.
Location: London (hybrid)
Contract: Permanent, full-time
About Cloud Gateway
Cloud Gateway is a UK-based managed network security provider delivering secure connectivity and network services to government and enterprise clients. We operate in a regulated, security-first environment where reliability is non-negotiable.
About the Role
We're looking for a Senior Platform Engineer to join our small but impactful platform team. You'll own and operate a multi-account AWS estate supporting critical government services, build and maintain CI/CD pipelines, and contribute to our growing observability and network automation products. This is a hands-on role with real ownership. You won't be pushing tickets around a queue; you'll be designing infrastructure, writing code, responding to incidents, and shipping improvements to production. You'll work closely with our NetOps, ServiceDesk, and engineering teams to keep things running and make them better.
What You'll Be Doing
- Managing and evolving a multi-account AWS organisation with Terraform-managed resources across production and development environments.
- Building, maintaining, and optimising CI/CD pipelines for infrastructure deployments, application releases, Docker image builds, and database migrations.
- Operating and improving our observability stack (Grafana, InfluxDB, Prometheus, OpenTelemetry, CloudWatch) monitoring 200+ network devices and all AWS infrastructure.
- Supporting and developing our Observability-as-a-Service product built on ClickHouse Cloud, HyperDX, and OpenTelemetry, including customer onboarding and tenant management.
- Participating in on-call rotation, responding to production incidents, writing postmortem reports, and driving reliability improvements.
- Contributing to security and compliance initiatives including Cyber Essentials Plus certification, IAM governance, and vulnerability management.
- Building and maintaining golden AMI pipelines with automated patching, CIS hardening, and vulnerability scanning.
- Supporting the Network Automation Platform initiative, integrating with FortiGate, Juniper, and NetBox for automated device configuration management.
- Maintaining and supporting legacy infrastructure across established accounts, including investigating issues in systems, understanding how they were built, and planning gradual modernisation where appropriate.
What We're Looking For
- Strong hands-on experience with AWS (EC2, ECS, Lambda, RDS, VPC, IAM, CloudWatch, API Gateway, S3, Route53).
- Solid Terraform experience.
- Experience with CI/CD pipelines.
- Docker experience.
- Linux administration and troubleshooting.
- Experience with monitoring and observability tools.
- Scripting ability in at least one of TypeScript, Python, or Bash.
- A security-conscious mindset.
- Comfortable with on-call responsibilities and incident response.
- Comfortable working with legacy infrastructure and services.
- Experience with network automation tools (Ansible, NAPALM, Scrapli, NETCONF).
- Familiarity with ClickHouse, OpenTelemetry, or time-series data platforms.
- Experience working with government clients or in regulated environments.
- Exposure to FinOps practices and cost optimisation.
- AWS certifications (Solutions Architect Associate or similar).
What We Offer
- The chance to own a platform end-to-end, not just a slice of it.
- Real impact, the services you support help millions of people across the UK.
- A small team where your contributions are visible and valued.
- Exposure to a wide range of technologies across infrastructure, serverless, observability, and network automation.
- A growing product engineering function with opportunities to shape the direction of new initiatives.
Senior Platform Engineer in London employer: Cloud Gateway
Cloud Gateway is an exceptional employer, offering a dynamic work environment in London where you can truly make an impact. As a Senior Platform Engineer, you'll enjoy the benefits of a hybrid working model, a strong focus on employee growth through exposure to cutting-edge technologies, and the opportunity to contribute to critical government services that benefit millions. Our collaborative culture values your contributions, ensuring that your work is recognised and appreciated within a small, dedicated team.
