Product Engineer (Full-Stack) | AI Product Development at REF Agency

Berlin, , Germany -

Full Time

Start Date

Immediate

Expiry Date

16 Oct, 26

Salary

0.0

Posted On

18 Jul, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Yes

Skills

Full-stack Development, Product Thinking, TypeScript, Python, System Design, API Development, Cloud Applications, AI-assisted Development, Problem Solving, End-to-end Feature Ownership, Customer Experience Design, Pragmatic Engineering

Industry

Description

Role ID:TT-TEL-PE-BER-001 Location: Berlin, Germany (On-site) Employment Type: Full-time Relocation: Relocation support available for outstanding international candidates. Visa sponsorship may be considered for exceptional profiles. About the Opportunity We are looking for an exceptional Product Engineer who wants to build products—not just write code. This is not a traditional software engineering position. You'll join a fast-moving AI startup where engineers own the entire product lifecycle, from identifying customer problems to designing, building, shipping, and continuously improving solutions. There are no traditional product managers. Engineers work directly on customer challenges, make product decisions, and take complete ownership of what they build. If you're someone who enjoys moving fast, solving real business problems, and taking responsibility from idea to production, this role offers an opportunity to have significant product impact from day one. What You'll Do * Own features from concept through production and iteration. * Identify customer pain points and proactively build solutions. * Collaborate closely with engineers, founders, and customers to improve the product. * Design pragmatic technical solutions that balance engineering quality with business value. * Ship production-ready features rapidly and iterate based on user feedback. * Make product decisions, prioritize trade-offs, and continuously improve the customer experience. * Use AI tools to increase engineering productivity and accelerate development. * Contribute to a highly collaborative, in-person engineering culture. What We're Looking For Required Experience * Strong full-stack software engineering experience. * Experience owning products or features end-to-end. * Strong product thinking and customer-first mindset. * Excellent problem-solving abilities. * Ability to make pragmatic engineering decisions. * High level of autonomy and ownership. * Comfortable working in an extremely fast-paced startup environment. * Strong communication skills in English. Ideal Background We're especially interested in candidates who have: * Built side projects, startups, open-source projects or participated in hackathons. * Demonstrated high ownership and measurable business impact in previous roles. * Experience working in early-stage or high-growth startup environments. * Previously wanted to transition from engineering into product ownership—or product managers returning to hands-on building. * A "figure it out" mentality with evidence to support it. * Strong engineering fundamentals (experience with TypeScript and Python is advantageous but not mandatory). Technical Skills Experience with some of the following is beneficial: * Full-stack development * TypeScript * Python * Modern web technologies * APIs * Cloud-based applications * AI-assisted software development tools Strong engineering ability is valued more highly than experience with any specific programming language. What Makes You Successful You'll thrive in this role if you: * Love taking ownership rather than waiting for direction. * Enjoy solving customer problems, not just technical challenges. * Move quickly while making thoughtful trade-offs. * Learn new technologies independently. * Prefer building and shipping over endless planning. * Are motivated by impact and business outcomes. * Enjoy working closely with your team in person. This Role May Not Be Right For You If You * Prefer remote or hybrid working. * Need highly structured processes and detailed direction. * Are primarily motivated by technology rather than customer outcomes. * Prefer traditional development processes with extensive approvals before shipping. * Are looking for a standard 9-to-5 engineering environment. * Prefer working within clearly defined product specifications instead of creating them. Interview Process 1. Recruiter screening call 2. Live online coding challenge including system design. 3. Full-day on-site interview in Berlin covering: * Coding * System Design * Product Thinking * Career Deep Dive 4. Professional reference checks. Why Join? * Build AI products with real customer impact. * Own features from idea to production. * Work alongside ambitious, highly talented engineers. * Learn at an accelerated pace in a high-growth startup environment. * Make meaningful product decisions instead of simply implementing specifications. * Join a company where ownership, speed, and execution are at the core of the engineering culture.

Responsibilities

Own the entire product lifecycle from identifying customer pain points to designing, building, and shipping production-ready features. Collaborate directly with founders and customers to make product decisions and iterate based on user feedback.