You'll build backend runtimes, distributed systems, and orchestration services using Kubernetes, Postgres, Redis/Valkey, and object storage. Your work powers AI product runtimes that coordinate long-running agent workloads, execute code securely, and manage state across distributed environments.

Humanoid★0.0· London

Design and train reinforcement learning policies (PPO, SAC, offline RL) in simulation (Isaac Lab, MuJoCo) and deploy on real humanoid robots, using Python and/or C++. The work focuses on dynamic locomotion, loco-manipulation, and sim-to-real transfer for the HMND‑01 Alpha humanoid platform in industrial pilots.

The CTO will lead the adoption of AI-augmented development workflows and retool the engineering organization's software building practices. The role oversees the combined company's technology function, unifying two legacy art marketplace platforms (Artsy and Artnet) into a coherent architecture. The CTO reports to the CEO and owns the full engineering team, infrastructure, and technical architecture for the company.

Lead the adoption of AI-augmented development workflows across the engineering organization, using modern tooling, agile practices, and continuous delivery. The combined Artsy and Artnet form the world’s largest online art marketplace and information platform.

DeepL★3.8 (4)· London

This role uses modern cloud stacks, backend technologies, and microservices to build a hyper-scalable API platform that serves as the gateway for DeepL’s Language AI integrations. You will architect API infrastructure, enable partner integrations with AWS Marketplace and enterprise SaaS providers, and build self-service tooling and automated quality gates.