Senior Platform Engineer

A leading global Insurtech organisation is seeking a Senior Platform Engineer to maintain, optimise, and evolve its cloud platform. This high-impact, hands-on role focuses on low-level cloud architecture, developer experience and tooling, SRE, and cloud security.

The successful candidate will join a team of experienced platform and cloud engineers to improve scalability, reliability, developer experience, and time-to-market for product teams. This role combines deep experience operating large-scale cloud systems with a passion for streamlining the path to production.

What the Role Will Involve

* Leading complex platform initiatives from concept through to production, ensuring alignment, unblocking dependencies, and delivering reliable platform components that underpin core products.

* Maintaining and operating a global, highly available infrastructure platforms panning five regions with 24/7 usage.

* Supporting customer success and product development teams to deliver value, including participation in out-of-hours on-call rotas.

* Championing engineering best practices across CI/CD, SRE, networking, and cloud security to raise standards of quality and reliability.

* Collaborating with engineering teams to guide cloud architecture decisions and ensure a smooth, efficient road to production.

* Mentoring engineers, developing their design and architectural thinking, and strengthening their ability to operate systems at scale.

* Researching and driving adoption of tools, frameworks, and architectural patterns that enhance developer experience, platform resilience, and delivery velocity.

The Ideal Candidate

The organisation is looking for a high-impact platform engineer who thrives on solving complex infrastructure and tooling challenges in the cloud. The ideal candidate:

* Has deep experience operating Kubernetes workloads at scale and maintaining a secure, well- governed networking stack.

* Advocates for clear, maintainable, and well-tested Infrastructure as Code configurations.

* Is collaborative and approachable, equally comfortable advising platform users as they are solving complex technical challenges.

* Stays current with industry best practices and proactively identifies opportunities to improve developer experience.

* Understands the balance between providing a structured “paved road” and allowing flexibility where appropriate.

* Is passionate about automation and reducing manual toil.

* Is happy to collaborate in person two days per week in a London office.

Technical Requirements

* Extensive experience designing, building, and operating distributed AWS cloud infrastructure, including networking, IAM, observability & monitoring, security& governance, and Kubernetes clusters.

* Deep knowledge of Helm and Terraform best practices.

* Proven ability to lead initiatives from discovery through delivery, balancing efficiency and ease of use.

* Strong hands-on experience in observability, monitoring, and SRE (Datadog experience beneficial).

* Experience modernising legacy systems, simplifying architecture, and reducing cognitive load.