Research AI. Build things people can use.

BitLabs is looking for AI Engineers, AI Researchers, and Forward Deployed Engineers to work on models, agents, and client deployments in Tokyo.

Research and engineering in one team

Full-time / Contract · Tokyo, Japan

AI Engineer

No visa sponsorship

Build and ship the agentic systems, RAG pipelines, and inference stacks our clients run in production.

Design and build agentic systems and RAG pipelines on modern frameworks
Build and operate high-throughput inference and serving infrastructure
Integrate AI systems securely into enterprise environments
Write evaluation harnesses that keep quality honest release after release

Apply

Full-time / Contract · Tokyo, Japan

AI Researcher

No visa sponsorship

Push our model training and fine-tuning work forward, and turn promising ideas into systems we can ship.

Pre-train and adapt LLMs and SLMs where model access, licensing, data, and compute permit
Research transformer architecture, training efficiency, and evaluation
Prototype ideas as PoCs and prove them before they reach production
Publish internal lab notes that inform what we build next

Apply

Full-time / Contract · Tokyo, Japan

Forward Deployed Engineer (FDE)

No visa sponsorship

Work directly with client teams to take an AI system from first discovery call to a production rollout, and carry what you learn back into our products.

Embed with client engineering and domain teams to scope the problem, design the system, and build it on site
Own deployments end to end: proof of concept, security review, rollout, and adoption in real workflows
Ship reusable pieces such as agents, tool integrations, and evaluation suites that clients run in production
Turn repeatable deployment patterns into documented playbooks and feed field findings to our research and engineering teams

Apply

Tell us about your work

Share your background, what you have built or researched, and the role that interests you. A resume is optional.

david@bitlabs.site