Senior Backend Engineer, Code Metal

• We are looking for a Senior Backend Engineer who is passionate about building robust, scalable backend systems in Python
• This role is for someone who thrives in an environment where most of the day is spent writing code, designing clean architectures, and solving hard problems independently
• 8+ years of professional backend software engineering experience, with a strong focus on Python
• Proven ability to design and deliver production-grade APIs and services using frameworks such as FastAPI or Flask
• Solid experience with PostgreSQL, including schema design, query optimization, and migrations
• Practical knowledge of geospatial and time-series querying, data modeling, and efficient indexing
• Experience building asynchronous systems using Redis (pub/sub, streams, or queues) or similar technologies
• Strong foundation in Docker-based development and deployment workflows
• Deep understanding of software engineering best practices, version control, testing, CI/CD, documentation, and type safety
• Demonstrated ability to take full ownership of a complex backend service from concept to production, with minimal oversight

Desirable

• Senior Backend Engineer
• You’ll develop backend services that handle complex asynchronous workflows, state machines, and event-driven lifecycles, powering distributed, data-intensive applications
• The systems you build will integrate geospatial and temporal data, enforce fine-grained permissions, and operate across multiple services with high reliability
• You’ll work in a modern Python environment, FastAPI, SQLAlchemy, Redis, and Docker, collaborating with a small, high-performing engineering team that values autonomy, clean code, and pragmatic solutions
• This is a 90% hands-on coding position, ideal for someone who loves to architect, implement, and own their code from design to deployment
• Design and build FastAPI-based services and APIs with a focus on performance, clarity, and maintainability
• Implement state machines and event-driven workflows that coordinate asynchronous operations across multiple services
• Work with PostgreSQL to design and query complex relational, geospatial, and temporal data models
• Build pub/sub and task processing patterns using Redis and modern async frameworks
• Integrate and extend authentication and authorization systems, enabling role-based and attribute-based access to data and endpoints
• Deploy and maintain containerized applications using Docker, ensuring reliability, observability, and security
• Write unit, integration, and performance tests that validate reliability and correctness
• Participate in code reviews and architecture discussions, contributing to design patterns, tooling, and continuous improvement
• Collaborate cross-functionally with other engineers and analysts to define APIs, data contracts, and workflow orchestration patterns