Senior Product Engineer (m/f/d)

Senior Product Engineer (m/f/d) – Journee

About Journee

Journee is a technology startup founded in 2020. Our low‑latency streaming technology and GPU fleet orchestration systems fuel award‑winning work with brands such as BMW, H&M, and Siemens.

We are building Ojin , a real‑time generative AI platform for developers. Ojin provides APIs and inference infrastructure for developers to build and scale interactive applications and AI agents.

What You’ll Do

• End‑to‑End Ownership – Drive features and projects from concept to production deployment.
• Full‑Stack Web Development – Architect core web infrastructure using TypeScript, React, and Node.js.
• AI & Agent Systems – Develop Python backends for AI capabilities, including proxy services, agentic systems, and conversational AI flows.
• Systems Architecture – Design scalable backend systems with architectural decisions that balance speed of delivery with long‑term reliability.
• Cross‑Functional Leadership – Collaborate closely with founders, designers, and other engineers to shape the product roadmap and technical strategy.

What We’re Looking For

• 8+ years of professional software development experience.
• Startup experience is a must – navigate ambiguity and move fast without breaking things.
• Expert‑level front‑end (React, TypeScript) and strong back‑end (Node.js, TypeScript) skills.
• Proficient in Python with experience building backend systems for AI agents and conversational interfaces.
• Enthusiastic about UI/UX, product design, and making trade‑offs that benefit the customer.
• Rigorous design of complex systems that scale through years of hands‑on experience.
• Professional fluency in English, spoken and written.

Nice‑to‑Haves

• WebRTC and WebSocket experience for real‑time applications.
• Performance optimization for global, low‑latency systems.
• Infrastructure‑as‑Code (IaC, AWS CDK) and AWS experience.
• Background in building developer tools, API platforms, or AI‑enabled products.

Benefits

• High‑Impact, Low‑Bureaucracy – autonomy and direct impact on product direction.
• Remote‑First Culture – work anywhere within CET +/- 2 hours.
• 28 days of paid vacation in Europe plus 1 additional mental health day per year.
• Annual education budget of €900.
• Home office equipment support.
• Values: high performance, transparency, humbleness, and pride in our work.

Journee is committed to creating a diverse and inclusive workplace where everyone is treated with dignity, respect, and fairness. We value diversity in all its forms, including but not limited to race, ethnicity, gender, sexual orientation, age, religion, national origin, disability, and veteran status. We believe that a diverse and inclusive workplace leads to better business outcomes, stronger relationships with our customers and partners, and a more fulfilling work experience for our employees.

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