Python Jobs - January 2026

CCI | London, UK | on-site (4 days) | software engineers. Castleton Commodities is an energy fund with engineers in London, New York and Houston. In London we are a team of 3 covering various asset classes. We are hiring mid to senior software engineers to co…

We’re building a general AI for humanoid robots using world-model-based reinforcement learning trained on large-scale real-world data. This is a founding engineer role. You’ll work directly with the founders and own core parts of the training and data systems…

WireScreen is a Sequoia-backed Series A startup building an open source intelligence platform focused on global supply chains and China-related risk. Hiring senior software engineers to build a scalable data platform to ingest and model messy, unstructured da…

Ezra is a venture-backed startup building at the intersection of sustainable finance and artificial intelligence. We're building a platform to accelerate capital deployment into climate solutions and other world-positive investments. I’m Rob, the CTO, and we’…

Chroma is the open-source search and retrieval database for AI applications. It supports dense vector, sparse vector, regex, and full-text search. They support local, single-node, and cloud hosting. The team is ~14 engineers and works in Rust, Python, TypeScr…

Starbridge is building an AI platform to turn large-scale public and enterprise data into sales insights. Early-stage, high-ownership roles. Product Engineer (React/Typescript) to build user-facing frontends and work closely with product/design. AI Engineer t…