Staff Backend Software Engineer

Join our team as a Staff Backend Software Engineer, where you will be a key technical leader responsible for the design, development, and delivery of our core backend services. You will tackle complex technical challenges, set architectural direction, and champion best practices across the engineering organization. This highly visible role offers the opportunity to have a major impact on our platform.

• Conception, développement et livraison des services backend.
• Direction technique, adoption des meilleures pratiques et mentorat des autres ingénieurs backend.
• Collaboration avec des équipes interfonctionnelles pour fournir des solutions de bout en bout.
• Strong understanding of microservice and API contracts
• Proven mentoring track record, especially helping mid‑level engineers grow in system design, observability, and operational excellence
• Fluency with observability and on‑call health, designing dashboards, APM traces, logs, and alerts; defining SLOs; and using these tools to drive down incident frequency and MTTR
• Excellent communication skills, with the ability to explain trade‑offs and system behavior clearly to engineers, product managers, and non‑technical stakeholders
• Experience establishing and raising engineering standards for a team: PR and testing guidelines (unit/contract/integration/smoke/end-to-end), deployment validation checklists, and post‑incident review practices
• Expertise with document databases especially DocumentDB/MongoDB
• Extensive AWS experience with production backends, ideally including EKS/Kubernetes, Lambda, MSK/Kafka, DocumentDB or MongoDB, and Secrets Manager/S3/CloudWatch, plus infrastructure‑as‑code (Terraform or similar)
• Proven experience owning Tier‑1, customer‑facing transaction systems (e.g., posting, booking, marketplace flows) with strict availability, correctness, and latency expectations
• Strong background in event‑driven and distributed systems using Kafka/MSK
• Deep Node.js/TypeScript expertise, building and operating Express (or similar) HTTP APIs at scale
• Demonstrated technical leadership: leading cross‑team designs in ambiguous problem spaces, writing clear system design documents, operations runbooks, and driving alignment across Engineering, Product, and Operations
• Hands‑on experience with zero/low‑downtime migrations
• 10+ years of experience in backend software development, including significant time as a senior or staff engineer owning complex, high‑throughput production services