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Posted by the employer · Warsaw, Poland

Haskell Developer

Unison Group · Warsaw · Poland

Full timeSoftware Engineer

Posted: 30.06.2026 · On the employer's job feed since 11.10.2026

The advert

Quoted in full from Unison Group's job posting. Gavroche does not edit it.

Job Description

We are looking for a highly skilled Haskell Developer with a strong foundation in Functional Programming and Mathematics/Computer Science concepts. The ideal candidate should have experience in designing and developing scalable applications using Haskell and possess excellent analytical and problem-solving abilities.

Key Responsibilities

  • Design, develop, and maintain applications using Haskell.
  • Write clean, efficient, and reusable code following functional programming principles.
  • Work on complex algorithms, data structures, and mathematical problem-solving.
  • Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions.
  • Optimize application performance and ensure high-quality code through testing and code reviews.
  • Participate in architecture discussions and technical design decisions.

Required Skills

  • Strong hands-on experience in Haskell programming.
  • Deep understanding of Functional Programming concepts:
    • Pure Functions
    • Immutability
    • Recursion
    • Higher-Order Functions
    • Type Systems
    • Monads
  • Strong foundation in:
    • Mathematics
    • Algorithms and Data Structures
    • Discrete Mathematics and Logic
  • Excellent problem-solving and analytical skills.
  • Good understanding of software engineering best practices and version control systems.

Preferred Skills

  • Exposure to other functional languages such as Scala, OCaml, or F#.
  • Experience in distributed systems, backend development, or high-performance computing.
  • Contributions to open-source projects or academic/research experience in functional programming.

Educational Qualification

  • Bachelor's or Master's degree in Computer Science, Mathematics, Engineering, or a related field.
  • Candidates with a strong mathematical background will be preferred.

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