.NET Developer
Haptiq is a global technology company dedicated to delivering best in class software and digital solutions engineered to drive profitable and scalable growth for our clients.

Operating as the nexus of portfolio management, growth, and optimization, Haptiq offers SaaS platforms fueled by cutting-edge AI, a comprehensive end-to-end data management platform, and a suite of strategic services.

Among our flagship offerings is Olympus FinTech, a dynamic solution empowering private equity, debt, and CLO managers with customizable and streamlined workflows, robust data management, and sophisticated reporting capabilities.

Complementing this, Zymphony MarTech enhances omnichannel customer acquisition, retention, and lifetime value optimization through a centralized customer data platform.

About the role

Looking for a .NET Developer to build software applications with .NET technologies, such as .NET MVC, C#, and SQL Server. You will be responsible for designing, coding with standard practices, testing applications, providing technical support, and maintaining software throughout its lifecycle.


  • Design maintainable, extensible components for a world-class fintech software suite.
  • Write clean, scalable code using .NET programming languages
  • Develop automated tests for code under development.
  • Maintain code for various .NET applications and resolve any defects in systems.
  • Revise, update, refactor, and debug code.
  • Improve existing software.
  • Develop API and code documentation for systems under development.
  • Monitor everyday activities of the system and serve as an expert on applications and provide technical support.
  • Ensure adherence to development standards and practices


  • 1+ year of experience as a software engineer
  • Experience with the MS Entity framework
  • Experience in C#, ASP.NET, .NET MVC, and web APIs
  • .NET core command, framework, and build experience
  • SQL Server schema design, stored procedures, and table creation
  • Familiarity with architectural patterns such as Model-View-Controller (MVC)
  • Familiarity with working of ASP .NET core application
  • Familiarity with Azure know-how (App Service, Service Bus, Sql, Monitor, etc.)
  • Familiarity with architecture styles/APIs (REST, RPC)
  • Test framework automation experience (Nunit, Xunit, Mstest)
  • Knowledge of secure coding principles (Owasp, privilege escalation)
  • Experience with alerting mechanisms for API’s in case of any failures
  • Understanding of Agile methodologies
  • Experience with Git
  • B.S. Computer Science degree or related degree
  • Basic JS acquaintance
  • Great communication skills


  • Work in a highly professional team. Informal and friendly atmosphere in the team.
  • Ability to work from our comfortable downtown office in Warsaw
  • Paid vacation — 20 business days per year, 100% sick leave payment
  • Inflation-protected wages with regular revision of compensation conditions
  • 5 sick days per year
  • Equipment provision
  • Medical insurance (after the end of the probationary period)
  • Partially compensated educational costs (for courses, certifications, professional events, etc.)
  • Legal and Accounting support
    in Poland
  • English and Polish classes 2 times
    a week (online)
  • Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
Join Haptiq
Leave your CV

and contact data here

Tatyana Kyashkina