Software Engineer (Member of Technical Staff, Platform)

Join Mithril, a cutting-edge infrastructure company, as a Software Engineer (Member of Technical Staff, Platform). You will be at the forefront of building a cloud-native, multi-provider platform with a differentiated auction and flexibility model. Your work will span across three core engineering areas: Consumption, Platform, and Supply. You will own meaningful slices of each area, shipping features end-to-end and gaining direct exposure to architectural decisions that shape Mithril's scalability. This role offers a unique opportunity to work across both backend systems and customer-facing surfaces, with a focus on real revenue and business-critical customer workloads.

• Concevoir et mettre en œuvre des primitives d'orchestration pour des réservations flexibles, y compris les crédits de retour, les extensions de réservation et le modèle d'enchères.
• Construire et maintenir des API backend Python alimentant les surfaces de réservation, d'enchères, de facturation et d'utilisation de Mithril.
• Participer à la rotation d'astreinte, à la triage des incidents de production et à la contribution aux manuels d'exploitation et à l'automatisation.
• The profile we're hiring for is a generalist with strong backend instincts — someone who has shipped and maintained production systems at real scale, and is comfortable owning features across the full stack when needed
• Strong debugging instincts: calm and systematic when triaging production incidents, with a bias toward durable fixes
• Ability to own a feature end-to-end — from design doc through backend API, database migration, feature flag rollout, and monitoring
• Proven experience with distributed systems; comfortable with messaging systems (RabbitMQ, Kafka) and RPC methods (gRPC, protobuf, tRPC)
• Comfortable in small teams where ownership is high and process is lightweight
• Fluency with relational databases: schema design, query optimization, and migrations in production environments
• Strong Python backend skills — you've built and maintained production APIs at real scale, not just prototypes
• Experience with developer tools or CLIs (bonus: SkyPilot or similar frameworks)
• Comfort working across the stack — Python backend and TypeScript/React frontend
• Familiarity with Linux containers and container orchestration (Docker Swarm, Nomad)
• Familiarity with Kubernetes, AWS infrastructure, or cloud provider APIs (GCP, OCI, Nebius)
• Proficiency with infrastructure-as-code (Terraform, Kustomize) or observability tooling (Grafana, Prometheus)
• Background in real-time systems: SSE, WebSockets, or event-driven architectures
• We emphasize that candidates need not fulfill every expectation listed to be eligible for this position. Our objective is to cultivate a diverse team encompassing a spectrum of backgrounds, experiences, and skill sets
• Experience with marketplace and billing systems — especially variable-usage, auction-based, or complex reservation models
• Prior experience at a startup where you wore multiple hats and shipped across domains