Senior Product Engineer; Frontend

Senior Product Engineer (Frontend)

We’re hiring a Senior Product Engineer (Frontend) to design and build intuitive, scalable interfaces for the deepset AI Platform. You’ll own features end‑to‑end, create reusable components, and evolve our design system to support real‑world, complex workflows. You’ll champion frontend best practices and collaborate with Product Design and Backend teams to shape how developers and enterprises interact with our platform.

At deepset we are on a mission to make custom AI solutions accessible to every organization. With Haystack thousands of developers build advanced LLM applications every day while our enterprise‑ready AI Platform helps companies turn large language models into business value. We are remote‑first, flexible, and built on a culture of trust and ownership. You’ll collaborate with top‑tier tech talent, tackle meaningful challenges, and help transform complex AI into solutions that are simple, powerful, and ready for the real world.

• Design and build a scalable AI platform that helps users solve real business problems with LLMs.
• Develop infrastructure to support thousands of LLM applications, processing millions of documents and handling hundreds of user requests per second.
• Own backend features end to end from architecture and CI/CD to testing, monitoring and customer feedback.
• Collaborate with the Open Source team to improve and contribute to Haystack.
• Partner with the infrastructure team on performance, observability and debugging.
• Help resolve high‑priority production issues with customer‑facing impact.
• Improve reliability by maintaining strong debugging tools and processes.
• Mentor other engineers and support their technical growth.

• 5 years as a Frontend Engineer ideally in fast‑paced or startup environments.
• Strong grasp of frontend architecture, performance and debugging techniques.
• Proficient in JavaScript and modern frameworks. Our stack:
  Type Script, React, Redux, Sass.
• Experienced with writing and maintaining tests.
• Proactive, collaborative and comfortable taking ownership.

• Familiarity with Python and backend systems.
• Previous experience building software for enterprise customers.
• Background or interest in NLP/LLM technologies.
• Experience contributing to or evolving design systems.
• Open‑source experience is a plus.

• Remote‑first setup with flexible hours & tech of your choice.
• 30 days vacation plus additional days for family or sick leave.
• Competitive salary & stock options for every team member.
• Monthly sports & mental health support allowance with Oliva.
• Annual learning & development budget.
• Monthly team socials & in‑person meetups.
• Dog‑friendly Berlin HQ.

Founded in 2018, deepset builds open and enterprise‑grade tools that help teams build AI with purpose. From Haystack, our open‑source framework, to the deepset AI Platform, we give developers and organizations the building blocks to solve complex, high‑impact challenges with AI with full control, transparency and sovereignty. Backed by GV and Balderton, we are growing the world’s production AI community and customer base, solving challenges too critical to get wrong.