Clera

Founding Product Engineer (Full-Stack / LLM)

Remote, United States remote Entry Salary not listed
remote Technology & IT Curated
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About the role

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
Required:
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.

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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Technology & IT Figma Javascript Sales Founding Product remote

Likely questions

  1. Tell us about work you have done that is close to the Founding Product Engineer (Full-Stack / LLM) role.
  2. How would you approach your first 30 days at Clera?
  3. Which of Figma, Javascript and Sales have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with Figma, Javascript and Sales.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Founding Product Engineer (Full-Stack / LLM) role because I can bring practical experience in Figma, Javascript and Sales, learn the team quickly, and contribute to the outcomes Clera needs from this hire.

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