Backend Software Engineer
Hybrid
Full Time
#Technology
#Fintech
#Backend Development
#C#
#.NET
#RESTful Web Services
#Web Development
#Technical Documentation
#Security
We are INFINIT, a global technology company that equips small and medium-sized businesses with an integrated platform combining AI-powered services, banking, and deep industry expertise. Our work focuses on transforming vertical banking for SMEs across Europe, and we are now seeking a Senior Backend Software Engineer to join our team on a full-time, hybrid basis. You will help build and maintain the server-side systems that power financing, payment, B2B, and B2C solutions used by businesses throughout the region.
Responsibilities
- Design and implement high-quality back-end solutions with C# and .NET that support our core financial products.
- Collaborate daily with front-end developers, project managers, and fellow back-end engineers to ensure seamless integration across the platform.
- Contribute to technical solution design, maintain clear documentation, and uphold security and privacy standards required for financial data.
Requirements
- Several years of hands-on experience building back-end systems with C# and .NET.
- Practical experience integrating RESTful web services and applying modern web-development best practices.
- Strong written and verbal communication skills in English, along with the ability to work effectively within a cross-functional team.
- Previous exposure to the fintech sector is viewed as an advantage.
What we offer
- Stock options that let you share in the company’s growth.
- Medical insurance covering both physical and mental health needs.
- Hybrid work arrangements that combine the flexibility of remote work with time spent in one of our offices in London, Madrid, Warsaw, Paris, or Lisbon.
- Flexible retribution benefits accessible through the Cobee mobile app.
- Personal time off that you can schedule as needed, plus an extra day off on your birthday.
- Regular team gatherings, including bi-weekly office meet-ups and an annual company-wide event, to build connections across our international team of more than seven nationalities.





