Founding Product Engineer (Full-Stack / LLM)

United States Digital Space LLC; Berlin; Vor Ort; EUR 90.000 - 140.000; Vollzeit

Benefits dieser Stelle

Equity stake

Founding team impact

Zusammenfassung

United States Digital Space LLC in Berlin is hiring a Founding Product Engineer to shape an AI-native procurement platform. You’ll be among the first engineers, delivering end-to-end features across UI, services, and LLM integrations.

Expect rapid prototyping, direct customer impact, and ownership from UX to backend prompts in a demanding, in-person setting. You will combine product taste with deep TS skills, ship fast, and guide how AI agents interact with procurement professionals at scale.

Qualifikationen

• Proficient in full-stack TypeScript across frontend and backend.
• Demonstrated experience with prompting, tuning, and integrating LLMs into products.
• Strong product intuition and attention to user experience.
• High ownership mindset and bias for action.
• Comfortable working in a fast-moving, in-person Berlin team.

Aufgaben

• Build end-to-end features spanning frontend, backend, and AI integrations.
• Design AI agent pipelines and simplify complexity for users.
• Prototype rapidly from customer feedback and ship production-grade features.
• Translate user behavior into concrete UX and backend improvements.
• Own features from UX through backend logic to prompts and outcomes.
• Define interaction models between AI agents and procurement professionals at scale.
• Treat AI-assisted development as a core workflow with sound judgment.

Kenntnisse

Full-stack TypeScript

LLM prompting & integration

Product sense

High agency

In-person collaboration

Jobbeschreibung

About the Role

A well-funded, early-stage B2B SaaS company building an AI-native intelligence platform for strategic procurement is looking for a Founding Product Engineer. The world's largest industrial companies spend billions on sourcing, yet their teams still operate on fragmented data, manual analysis, and gut feel. This company is replacing that with AI agents that turn procurement into a cognitive function.

You’ll be one of the earliest engineers on the team, working in a fast-moving environment where your output directly shapes the product and the customer experience. Enterprise customers are already asking for features faster than the team can ship them — you’ll change that.

What You’ll Do

• Build end-to-end features across the full stack: frontend UI, backend services, and LLM integrations.
• Design and implement sophisticated AI agent pipelines, then make that complexity invisible to end users.
• Prototype quickly, iterate on real customer feedback, and ship production-grade features at pace.
• Sit close to real users — translate their behavior and feedback into experiences that genuinely land.
• Own features from UX through backend logic to prompt design, with full accountability for outcomes.
• Help define how AI agents and procurement professionals interact at scale.
• Treat AI-assisted development as a natural part of your workflow, with clear judgment on when it helps.

What We’re Looking For

• Strong proficiency in full-stack TypeScript (frontend and backend).
• Sharp intuition for working with LLMs — prompting, tuning, and integrating them into real products. Evidence via work history, side projects, or hackathons is a plus.
• Strong product taste and creative instincts for what makes a great user experience.
• High agency and outcome-driven mindset — you find a way, you don't wait for permission.
• Comfort navigating ambiguity: fast prototyping, sharp instincts, and relentless iteration.
• Genuine excitement about working in‑person with the team in Berlin.

Nice to Have

• Experience with agentic or multi-step LLM pipeline architectures.
• Background in enterprise SaaS, procurement tech, or data‑intensive B2B products.
• 1–10 years of experience; all levels considered — what matters is mindset and track record.

Compensation & Benefits

Salary: €90,000 – €140,000 per year, depending on experience.

• Equity participation as a founding team member.
• Direct impact on product direction and company trajectory from day one.

Location

Berlin, Germany — hybrid, in‑person collaboration with the team is expected.

• Visa sponsorship is not available for this role.