Senior Platform Engineer

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.