Senior Backend Engineer

An employer is seeking a Senior Backend Engineer to join their team, focusing on building API-driven marketplace products. The Role Design, build, and maintain scalable, secure backend services and REST APIs. Own features from design and implementation through testing, deployment, and monitoring. Model, evolve, and optimize PostgreSQL data layers. Integrate with third-party APIs and internal services, ensuring reliability and clean error handling. Write automated tests and deploy/operate services in a cloud environment, including CI/CD and observability. What You'll Need 5+ years of professional backend engineering experience with a strong record of delivering production systems. Strong proficiency in Python and modern API frameworks (FastAPI or similar). Solid experience designing and building RESTful APIs and backend services. Strong PostgreSQL skills, including schema design and performance tuning. What's On Offer Contract-to-hire engagement with a path to full-time employment. Competitive contract rate with full-time salary and equity on conversion. Opportunity to work with AI-powered development tools. Apply via Haystack today!