Back End Developer

What You'll Do

* Design, develop, and maintain robust back end services, APIs, and data pipelines * Build scalable, high-performance server-side architecture to support AI training and inference workloads * Write clean, well-documented, and testable code following engineering best practices * Integrate with databases, message queues, cloud services, and third-party APIs * Optimize system performance, reliability, and scalability as usage grows * Collaborate asynchronously with distributed teams of engineers, researchers, and product leads * Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions * Work independently on task-based and project-based assignments on your own schedule

Who You Are

* Proficient in one or more back end languages — Python, Go, Java, Node.js, Rust, or similar * Solid understanding of RESTful API design, microservices architecture, and distributed systems * Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.) * Comfortable working with cloud platforms such as AWS, GCP, or Azure * Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes) * Strong problem-solving skills and the ability to debug complex systems independently * Self-motivated, reliable, and effective when working asynchronously without close supervision * Clear communicator who can document decisions and collaborate across time zones

Nice to Have

* Experience building infrastructure for machine learning or AI systems * Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar) * Background in performance optimization, caching strategies, or high-throughput systems * Knowledge of authentication, authorization, and security best practices * Experience with serverless architectures or event-driven design patterns * Contributions to open-source projects or a strong portfolio of personal/professional work

Why Join Us

* Work on cutting-edge AI infrastructure projects alongside leading research labs * Fully remote and flexible — set your own hours and work from anywhere in the world * Freelance autonomy with access to meaningful, technically challenging work * Build systems at the intersection of software engineering and artificial intelligence * Collaborate with a global network of talented engineers and researchers * Potential for ongoing work and contract extension as new projects launch