Backend Engineer at fast-growing AI-first SaaS startup

You will lead the development of robust backend systems, integrating cutting-edge AI capabilities into a production environment. This role involves building high-performance APIs and managing scalable data infrastructure while maintaining a product-owner mindset. You will have full ownership of production services, ensuring reliability and performance for a rapidly scaling user base.

Fast-growing AI-first SaaS startup

• Design, build, and maintain high-performance APIs using Python (FastAPI) and manage scalable data storage with Postgres and Redis.
• Architect and deploy AI-driven features, leveraging vector databases, reranking algorithms, and LLM-based agents to enhance product capabilities.
• Own the end-to-end lifecycle of production services, from initial design through to deployment and monitoring on cloud infrastructure.

• 4+ years of professional experience building production-grade APIs and services with strong proficiency in Python and SQL.
• Proven track record of owning scaling or reliability projects and a proactive mindset toward product ownership and user experience.
• Hands-on experience or a strong desire to work with AI technologies including vector search, LLM orchestration, and event-driven systems.

• Opportunity to build at the intersection of backend engineering and AI, including agentic workflows and vector databases.
• Join a well-funded team backed by top-tier VCs during a high-growth phase with significant ownership of technical decisions.
• Work in a high-talent density environment that prioritizes engineering excellence, reliability, and shipping high-impact product features quickly.