Senior Backend Engineer (Team Atlas)

Join Team Atlas, a small, high-ownership team focused on the data infrastructure powering our feature computation platform. As a Senior Backend Engineer, you will own critical systems end-to-end, make key architectural decisions, and work directly with Product and Design to shape what we build next. You will build and operate backend services in Python on AWS, tackle hard backend problems, and raise the bar for the team through code reviews, mentoring, and improving our development tooling and processes.

Posséder des systèmes critiques de bout en bout, de l'architecture à la mise en œuvre, en passant par le déploiement, la surveillance et la réponse aux incidents.

Responsibilities

• Construire et exploiter des services backend en Python sur AWS, en abordant des problèmes difficiles liés à la latence, à la fiabilité et à l'évolutivité.
• Faire des choix architecturaux clés et élever le niveau de l'équipe grâce à des revues de code, au mentorat et à l'amélioration de nos outils et processus de développement.

Requirements

• The ability to work in a hybrid model from our Berlin HQ, the London office, or the Iasi hub. Please note that relocation assistance is not provided for this role
• Strong system design skills — you're comfortable making architectural trade-offs and defending them
• Depth in at least one of these areas: data pipelines and storage, event-driven architectures, caching and performance, or serverless systems. You don't need all of them
• Deep expertise in Python and building backend systems on cloud platforms (we use AWS)
• Strong communication and collaboration skills, with the ability to align technical and non-technical stakeholders on a shared vision
• We're eager to meet talented and driven candidates regardless of whether they tick all the boxes. We're looking for someone who will add to our culture, not just fit within it. We strongly encourage individuals from groups traditionally underestimated and underrepresented in tech to apply
• Apache Iceberg, AWS Athena, AWS Glue, or Apache Spark
• Streaming / real-time data pipelines (Kinesis)
• Serverless at scale (Lambda, SAM, CloudFormation)
• Multi-level caching strategies (Redis, DynamoDB, in-memory)
• At least 7 years of professional software engineering experience, with a proven track record of leading complex projects in a senior capacity (2+ years)