Senior Founding Product Engineer

Stack

Responsibilities

• ▹Own features end to end, from hypothesis to production, for products used by thousands of companies across Europe
• ▹Lead product discovery by testing hypotheses through rapid experiments
• ▹Maintain close contact with customers, partners, and Sales to surface real pain points
• ▹Design and implement tracking to enable data-driven decisions
• ▹Build software across the stack and drive architecture choices through release
• ▹Prioritize pragmatic solutions, balancing immediate validation with long-term scalability
• ▹Run experiments and lightweight prototypes before large-scale commitments
• ▹Take ownership and move initiatives forward without waiting for sign-off

Requirements

• ▹3+ years of product engineering experience delivering features end to end
• ▹Full-stack experience with Node.js, TypeScript, NestJS, and React
• ▹German language proficiency at B2 level or above, with English for team and product communication
• ▹Hands-on experience owning software architecture through production release
• ▹Comfort in a startup environment and a pragmatic, data-driven mindset
• ▹Experience extracting and owning relevant metrics to iterate based on data

Nice to have

• ▹Experience integrating or working with large language models

What we offer

• ▹Salary range 80,000-120,000 EUR annually
• ▹Equity in a high-growth environment
• ▹Visa sponsorship not provided
• ▹Remote-first work with CET overlap, optional office access in Vienna

About the company

Clera is a fast-growing AI-powered B2B SaaS startup building a Germany-focused AI phone assistant used across Europe, run by a small team that owns product development from hypothesis to production.