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Senior Fullstack Engineer; m​/f​/d | Legal AI Tech Scale-Up | Full Remote

Online/Außer Haus - Idealerweise für Kandidaten in
10115, Berlin, Berlin, Deutschland
Unternehmen: Xayn
Vollzeit, Fernarbeit/Heimarbeit position
Verfasst am 2026-07-14
Berufliche Spezialisierung:
  • Software Entwicklung
    Backend Entwicklung, Full Stack Entwickler, Software-Ingenieur, Frontend Entwicklung
Gehalts-/Lohnspanne oder Branchenbenchmark: 60000 - 80000 EUR pro Jahr EUR 60000.00 80000.00 YEAR
Stellenbeschreibung
Stellenbezeichnung: Senior Fullstack Engineer (m/f/d) | Legal AI Tech Scale-Up | Full Remote

As a Senior Fullstack Engineer (f/d/m), you will play a pivotal role in shaping and enhancing the user experience of our AI-driven legal solutions. Our B2B solutions are aimed at professionals who work in law research and legal advising. You will work closely with our design, engineering, and product teams to develop user-facing features across the entire stack, including frontend, backend, and automated testing.

You will join our Tech Team of around 32 people, including UI Engineers, UI Designers, AI Engineers, as well as Fullstack, Backend, and Dev Ops Engineers.

About you
  • Experience:

    3 years of professional Software Development experience building and shipping web applications
  • Front-End:
    Proficiency in modern JavaScript/Type Script and at least one major framework (
    React, Vue, Angular, or similar
    ). Knowledge of accessibility best practices, plus.
  • Back-End:
    Solid experience with server-side languages and frameworks, as well as an understanding of RESTful API design. We use Rust, Type Script, and Python for our backends, so you should be familiar with at least one of these languages in a backend context.
  • Databases:
    Working knowledge of relational databases (we use PostgreSQL
    ) and familiarity with No

    SQL

    solutions, e.g., Redis.
  • Infrastructure:
    Familiarity with containerization (
    Docker
    ), CI/CD pipelines, and version control (Git).
  • Fundamentals:
    Strong grasp of data structures, algorithms, system design principles, and software engineering best practices.
  • Communication:
    Ability to communicate technical concepts clearly to both technical and non-technical stakeholders. Comfortable working in a collaborative
    , cross-functional environment.
  • Fluent in the English Language
Your responsibilities
  • Design, develop, and maintain features across our front-end and back-end systems
  • Collaborate with product managers, designers, and fellow engineers to translate requirements into well-architected, reliable software
  • Write clean, tested, and well-documented code with a focus on maintainability and long-term quality
  • Participate in code reviews
  • Contribute to architectural decisions, helping evaluate trade-offs and choose the right tools for the job
  • Identify and resolve performance bottlenecks, bugs, and technical debt across the stack.
  • Help improve engineering processes, tooling, and development workflows.
Our offer to you

Building Europe's sovereign Legal AI is ambitious, meaningful work — and we want the people doing it to be properly looked after. Our benefits are built around flexibility, real-time off to recharge, and the setup to do your best work from wherever you are.

  • Remote
    : 100% remote work possible (given a German residence), other countries upon request
  • Working hours
    :
    Flexible working hours
  • Vacation: 26 days +
    December 24th & 31st off
    , + 1 additional vacation day per year of employment (up to 30 days)
  • Discounts
    : e.g., Urban Sports Club Membership, depending on location
  • Equipment
    :
    Laptop (Lenovo or Mac), plus €1,000 net home office setup budget (paid with your first salary)
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Stellen-Anforderungen
10+ Jahre Berufserfahrung
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