Shape the future of AI-driven workflows by designing and implementing core interaction systems that bridge user intent with powerful AI capabilities. In this role, you'll focus on creating seamless, trustworthy experiences within a visual workflow environment, ensuring outputs are accurate, explainable, and easy to refine.
What You’ll Do
- Design and build end-to-end AI-assisted features for workflow creation, editing, and intelligent suggestions
- Structure context for language models using workflow state, user goals, constraints, and interaction history
- Develop agent behaviors that call internal tools, validate responses, handle errors, and recover gracefully
- Define and implement evaluation frameworks to measure and improve the quality of AI-generated outputs
- Run fast experiments, analyze results, and iterate quickly to deliver measurable improvements
- Work closely with product, design, and engineering teams to refine the user experience of AI assistance
- Stay informed about advancements in LLMs and integrate practical innovations into the product
What We’re Looking For
- 7+ years of experience building web-based SaaS or developer tools
- Strong fullstack skills in TypeScript, Node.js, and API design
- Proven experience shipping AI-powered features in production environments
- Hands-on work with tool-using AI systems—such as coding agents, copilots, or multi-step orchestration pipelines
- Deep understanding of prompt engineering, context optimization, and managing failure modes in LLM applications
- Experience building or applying evaluation systems for AI outputs, including benchmarks, scoring, and regression testing
- A focus on user outcomes and a track record of delivering practical, usable AI features
- Ability to move quickly, learn from data, and continuously improve through iteration
Preferred Experience
- Building tools that generate code, workflows, or structured data (e.g., SQL, config, DSLs)
- Familiarity with agent orchestration, state machines, or DAG-based execution systems
- Experience with AI observability: debugging, tracing, test harnesses, and monitoring for LLM systems
- Contributions to open-source AI tooling in areas like evaluation, prompt management, or orchestration
- Working knowledge of RAG systems and retrieval strategies
Technology Stack
Primary technologies include TypeScript, Vue, Node.js, and thoughtful API design.
Benefits & Culture
- Competitive salary and equity participation
- €1,000 annual budget for courses, books, events, or coaching
- Europe: 30 days vacation + public holidays; US: 20 vacation + 8 sick days + holidays
- Health, dental, vision, retirement (401k with 4% match), disability, and life insurance (US); local standards in Europe
- Remote-first environment with regular team off-sites
- Monthly stipend to support open-source projects
- Unlimited access to AI tools for exploration and development
- Transparent company culture with full visibility into performance and strategy
- Builder-focused, inclusive, and collaborative environment (eNPS 94 in 2024)
Work Environment
Remote-first, with team members across Europe and the US. This role is fully remote with no hybrid requirement. Regular in-person gatherings support team connection and collaboration.
Our Values
- Empowering others through tools and knowledge
- Fostering invention and open collaboration
- Championing open source and community contributions
- Operating with transparency and integrity
- Building an inclusive culture where everyone belongs
- Combining ambition with kindness
We are committed to equal opportunity and welcome applicants regardless of race, religion, colour, national origin, gender, sexual orientation, gender identity, age, marital status, veteran status, or disability status.

