Senior Frontend-Focused Fullstack · AI Product Engineering
Leipzig · Remote (DACH / EU)
Daniel Dihardja
I help teams ship AI products and automation — agents, workflows, and operator tools. For marketing, agencies, and AI product teams.
What I work on
-
1. AI agents → production UI
Take Streamlit / Bedrock / LangGraph prototypes into React/Next.js: agent chat, typed tools, auth, artifact flows. Not demos — shippable product surfaces.
-
2. Operator tools & product consoles
Agent consoles, internal tools, and multi-step product flows — the surfaces teams run day to day. Frontend architecture that stays maintainable as the domain grows.
-
3. Design systems & accessible UI platforms
Shared component libraries, Storybook, Web Components, a11y-minded delivery — so teams stop rebuilding the same UI.
-
4. Frontend-led fullstack delivery
When you need one senior who owns the UI and can close Nest.js / Node / Python API gaps without waiting on a full platform team.
Who it's for
Marketing and digital agencies building AI products or automation.
AI product teams building chat UX, agent workflows, or operator tools — not only ML research.
That's built on a background shipping complex B2B in fintech, energy, public sector, industrial IoT, and B2B SaaS.
Stack (when it matters)
React · Next.js · Angular · TypeScript · Node.js · Nest.js · Python · FastAPI · LangChain / LangGraph · AI SDK · GraphQL · Turborepo