Senior Product Engineer (full-stack) Jobs

Deepset GmbH

Location:
Germany; Spain, Berlin ▼
Barcelona

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

We’re hiring a Senior Full Stack Engineer to build and scale the deepset AI Platform, our enterprise-grade product for LLM-powered applications. You’ll work across the stack—designing clean, intuitive interfaces and building reliable backend systems that process millions of documents and 100s of user requests per second. Ideal for someone who enjoys owning features end to end, thrives at the intersection of frontend and backend, and wants to shape how enterprises adopt real-world AI.

Job Responsibility:

Own features end to end—from backend services to frontend interfaces
Build scalable, intuitive UIs and robust APIs to power complex enterprise workflows
Develop infrastructure to support thousands of LLM applications, handling millions of documents and 100s of user requests per second
Collaborate with Product, Design, and Backend teams to shape the user experience
Contribute to and evolve our design system for consistency and usability
Ensure quality through strong testing, monitoring, and CI/CD practices
Occasionally handle urgent “firefighting” and customer-facing production issues
Mentor teammates and foster cross-functional engineering best practices

Requirements:

5+ years of professional experience as a Full Stack Engineer (or similar)
Strong proficiency in JavaScript/TypeScript, React, and backend development (Python)
Solid knowledge of REST APIs, SQL databases, CI/CD, Kubernetes, and cloud services
Skilled at building reusable UI components and scalable backend systems
Proactive, collaborative, and comfortable taking ownership in fast-paced settings
Strong product mindset and experience with talking to users & stakeholders

Nice to have:

Experience in early-stage or high-growth startups
Familiarity with open-source development
Background in NLP, machine learning, or LLM technologies
Previous experience building or scaling B2B SaaS products
Experience evolving design systems or contributing to OSS projects

What we offer:

Remote-first setup with flexible hours & tech of your choice
30 days vacation + extra days for family 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

Additional Information:

Job Posted:
December 08, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Senior Product Engineer (full-stack)