Senior backend engineer to build core systems for real-time voice AI conversations. Responsibilities include building Python-based state systems, integrating multiple LLM providers (prompting, routing, tool calling, fallbacks), writing high-performa…

Modal builds a serverless cloud used by AI companies for inference, training, batch operations and sandboxes. Hiring for Product, System, and SDK engineering teams, with Product Engineering (observability tooling) primarily in NYC as an in-office ro…

Lago is an open-source billing platform (getlago.com) that enables teams to manage and scale any pricing model. The company has raised over $22M and is hiring full-time, permanent roles across Product and Engineering. Open roles include Senior Backe…

Building Wave, a high-performance GPU programming language and compiler for machine learning workloads. Own end-to-end performance of Wave's kernels. Work includes hand-tuned GPU kernels (GEMM, Attention, MoE, decoding); instruction-level optimizati…

Smarkets is a betting exchange for sports and political trading that has handled over £37 billion in volume since 2010. Company mission: to fix the betting industry with the best products and best prices. Multiple open roles listed including backend…

We are looking for experienced engineers to join as our first hires, working with the founding engineer to develop a new generation of B2B sports trading technology. No prior domain or Go experience required. This is a hands-on role focused on deliv…