Job description
(Senior) Product Engineer - m/f/d
Company Overview
Langdock is the AI platform used by more than 10,000 companies to give employees secure access to the leading AI models, to build and share agents and to automate repetitive workflows. We have grown past $40M ARR while remaining a small team, and we care deeply about operating efficiently across the entire company.
The role
Product Engineers own a customer problem and its outcome from discovery through production. You speak with users, decide what the product should do, build the solution across the stack, ship it, and use production feedback to determine what happens next.
What you might work on
- Chat and Agents. Evolve the core Langdock experience where people work with models and agents.
- New interfaces for agentic work. Design how people steer multi-step work, review intermediate results, and approve actions.
- Making agents trustworthy at enterprise scale. Build governance and evaluation capabilities for workspace administrators.
- Organizing the work agents produce. Develop Library, the system that brings attachments, generated outputs, and connected knowledge together.
- Automating long-running work. Extend Workflows, where agents call tools, pause for human input, and produce structured outputs.
- Bringing Langdock into existing workflows. Build Excel and Outlook integrations.
Tech stack
- TypeScript, React, Next.js, and Tailwind CSS in one Bazel monorepo
- React Native and Expo for mobile
- Node.js services and workers
- PostgreSQL with Prisma; Redis with BullMQ
- AI engine across OpenAI, Anthropic, Google, Mistral, Bedrock, Azure, and open-source models
- Linear for planning and GitHub for code review
How we work
- We operate with high trust and autonomy in squads of 3 to 4 engineers.
- We align asynchronously before scheduling a meeting.
- We optimize for leverage using AI tools, automated tests, and AI review.
- The engineer who ships a change owns it in production.
What we are looking for
- 3 to 6 years of experience building and shipping full-stack product software.
- Curiosity about how customers work and ability to investigate beyond initial requests.
- Experience navigating ambiguity to ship simple, effective solutions.
- Understanding of practical large language model behavior.
- Ability to share context, disagree directly and respectfully, and help others.
Working here
This is an in-office role at Greifswalder Strasse 212 in Berlin. You need an existing right to work in Germany. We do not currently sponsor visas.
Compensation
The salary range for this role is €90,000–€140,000 gross per year, depending on level and scope. All roles include equity.
