Senior Software Engineer – OCaml/C# – OTC Core (FinTech)

Location: Copenhagen, Denmark. Hybrid work with two days per week in the office and remote work on the other days.

Company

hirify.global provides integrated investment management solutions for investment and asset managers and is an independent subsidiary of Deutsche Börse Group.

What you will do

• Implement financial contract models in an OCaml-based domain-specific language, including business logic, database mapping, and user-interface layout.
• Evolve the OCaml-based language and supporting C#/.NET framework.
• Use Claude, GitHub Copilot, and an internal cloud agent to explore solutions, develop code, and improve tests while validating results with engineering judgment.
• Collaborate with product management and engineers to translate business needs into maintainable solutions.
• Build automated tests, participate in code reviews, make technical decisions, address technical debt, and share experience with colleagues.

Requirements

• Senior-level engineering profile able to solve complex problems, contribute to design decisions, and collaborate effectively.
• Strong programming and software design skills, with experience in C#/.NET or functional programming.
• Ability to understand an existing system and make thoughtful, well-tested changes.
• Curiosity about functional programming, financial modelling, and the business problems behind the code.
• Collaborative approach, including asking questions, explaining reasoning, and giving and receiving constructive feedback.
• Clear communication in English and willingness to keep learning.

Nice to have

• Experience with OCaml or other functional languages such as Haskell, Scala, or F#.
• Experience with domain-specific languages, Web APIs, or financial software.
• Relevant degree or equivalent practical experience.

Culture & Benefits

• Global hybrid work policy with two office days per week and remote work on other days.
• Every sixth sprint is reserved for planning and innovation.
• High degree of self-organization and freedom to plan, organize, and design work.
• Inclusive and diverse culture with emphasis on empowerment, collaboration, and professional growth.
• Pension, health benefits, bonus, and support for work-life balance.

Hiring process

• Apply in English through the career site; only applications submitted through the company system will be processed.
• Exclude personal data such as photo, age, and non-professional information from the application.
• Applications are reviewed continually, with an approximate CV consideration time of three weeks.