Senior Backend Engineer (Python) Jobs - February 2026

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-performance async …

At Doist, our mission is to inspire the workplace of the future by creating tools (like Todoist and Twist) that promote a more fulfilling way to work and live. We envision a future in which people can work without distractions from anywhere in the world on th…

At Doist, our mission is to inspire the workplace of the future by creating tools (like Todoist and Twist) that promote a more fulfilling way to work and live. We envision a future in which people can work without distractions from anywhere in the world on th…

At Tessian, we're building machine-intelligent filters to secure enterprise communications. This involves high volume, low latency data processing for some of the world’s largest organisations. Our mission is to keep the world’s most sensitive data private an…

At Doist, our mission is to inspire the workplace of the future by creating simple yet powerful productivity tools (like Todoist and Twist) that promote a calmer, more balanced, more fulfilling way to work and live. We envision a future in which people can wo…

wattx, a new kind of company builder focused on creating deep technology startups, is looking for a multiple people to join our tech team! wattx operates within Construction Tech, Prop Tech, creating a real impact while focusing on Sustainability. We are a fu…