Senior Infrastructure / DX Engineer, Babbel

• Strong, hands-on cloud engineering experience on AWS at organisational scale: multi-account setups, identity and access, networking, and account-level guardrails. Serverless is our default but we want someone who can pick the right tool for each problem
• A security-first instinct: least privilege, secrets management, and treating patching and vulnerability remediation as routine work
• Deep, hands-on experience with infrastructure as code. You have built and maintained real production estates in Terraform, or a close equivalent, and you are comfortable owning delivery pipelines on AWS
• TypeScript on Node.js as your primary application language, or a deliberate and recent move to it. Python is a welcome secondary. Go or Rust are useful for performance-critical components
• A track record of building or choosing internal tooling that lets other engineers work faster, with the judgement to adopt an existing solution when one fits rather than build from scratch
• Delivery experience in both lean startup settings and larger organisations, with ownership from start to finish. You scope a sensible first version and build on it
• Coding agents are part of your daily workflow, and you check their output before you rely on it. You are neither dismissive of them nor careless with them
• We are a learning company, inside and out, and we encourage you to apply even if you do not fit all the technical requirements — all candidates are assessed based on skills, qualifications, and our business needs

Desirable

• We are modernising and consolidating our services in the cloud, and we are building the internal platform that lets product teams ship and run those services with confidence
• This role builds that platform. It also stays close to the code, in the same cloud-native, TypeScript and Node stack the product teams use
• This is a hands-on individual-contributor role on the Platform team. You will design, build and ship, and you will work directly with product engineers to help them solve their infrastructure problems
• Build and operate the internal developer platform, the paved road of tooling and infrastructure that lets teams set up and run their own services without waiting on us
• Drive our cloud migration, moving and consolidating services into a modern cloud-native setup without slowing delivery
• Design system and infrastructure architecture and communicate it clearly, including diagrams that other engineers can build from
• Work alongside product engineers and get them unblocked, because the platform exists to serve the product
• Deliver with coding agents as a matter of course, and help improve how the whole team does so
• Experience with monorepo build systems and shared tooling
• Previous cloud-migration work
• A track record of building internal command-line tools or code generators
• Public technical work, such as open-source contributions or writing

• The interview process is deliberately short. It is an initial screen, followed by one structured working session with the hiring manager