(Senior) Product Engineer
The posting does not state a salary. This range is our estimate from the role, the location and the stack — treat it as a guide, not an offer.
- Level
- Senior
- Apply from
- Germany
About the role
- Strong fullstack proficiency in TypeScript and React.
- Experience with AI-powered product development.
- End-to-end ownership of features and workflows.
- Collaborate with cross-functional teams for product success.
- Focus on user problems and efficient solutions.
Skills the posting asks for
- TypeScript
- React
- Node.js
- AI
- Next.js
Summarised from the employer’s posting, which is reproduced in full below.
The employer’s full posting
Requirements
- Strong fullstack proficiency in TypeScript, React / Next.js, and Node.js / NestJS ,
- Real, demonstrable experience building with LLMs, APIs, or MCPs - production use preferred ,
- A product and customer mindset: you think about user problems, not just implementation elegance ,
- Proven ability to own features end-to-end, from rough problem statement to shipped, maintained product ,
- Experience working closely with PMs and designers in a cross-functional team ,
- Excellent written and spoken English; German is a plus ,
- Residency in Germany ,
- (Desirable) Experience with agentic systems, tool-use patterns, or RAG pipelines ,
- (Desirable) Familiarity with the energy market, construction, sales, or climate tech context ,
- (Desirable) Prior experience in a startup or scale-up
- You will help shape the virtual assembly line team - our intelligence workflow engine building solutions in Growth and Operations to scale our products globally with maximum efficiency and quality. This is a builder role at the intersection of engineering and product: you co-define what gets built, ship it fast, and use AI as a force multiplier at every step ,
- As a (Senior) Product Engineer at 1KOMMA5°, you will take end-to-end ownership of features and workflows, making key decisions on architecture, integration layer, and solution design. You'll collaborate closely with product managers, designers, and engineers across teams to ship things that genuinely move the needle for our customers - and you won't be shy about challenging assumptions or proposing a better direction ,
- Our Stack: ,
- TypeScript, React / Next.js (frontend) and Node.js / NestJS (backend) ,
- AI-assisted development with Cursor and Claude Code ,
- GCP / Vercel, GitHub Actions (CI/CD) ,
- Linear, Notion, Figma, Miro ,
- Own feature development end-to-end, from problem framing to production deployment and long-term maintenance ,
- Build and integrate AI-powered product experiences using LLMs, agents, and tool-use patterns ,
- Define feature scope together with PMs - engage with the "why", not just the "what" ,
- Contribute to architectural decisions, API design, and AI integration patterns across the teams ,
- Keep feedback loops short: prototype, ship to real users, observe, adjust ,
- Push back when something doesn't make sense and propose better approaches