Onsite Senior Software Engineer – C#, Java

Posted 1 hour ago

Apply now

About the role

  • Senior Software Engineer developing APIs and integration modules for Mastercard's Open Finance. Collaborating with teams to ensure reliable connectivity with thousands of financial institutions.

Responsibilities

  • Design, develop, and maintain APIs and integration modules connecting our platform to thousands of European banks and financial institutions.
  • Collaborate with engineers and product stakeholders to define requirements, set acceptance criteria, and deliver solutions.
  • Contribute to architecture by ensuring scalability, maintainability, and adherence to best practices.
  • Maintain quality through code reviews, testing, and continuous improvement initiatives.
  • Solve complex problems involving performance, distributed systems, and regulatory constraints.

Requirements

  • Strong experience building backend services in either .NET or Java, with a willingness to work across both where needed.
  • High proficiency in one language, plus some level of experience or ability to transition into the other with support.
  • Experience working in fast‑paced, product‑centric environments.
  • Solid understanding of API design, distributed systems, and cloud environments.
  • Experience in establishing bank connections through PSD2 interfaces.
  • Ability to write clean, maintainable, and testable code.
  • Collaborative mindset and eagerness to work closely with product and engineering peers.
  • Curiosity and drive to continuously improve systems, processes, and yourself.

Benefits

  • Impact at scale
  • Work on integrations that touch millions of users across Europe.
  • Small team, big responsibility
  • Lean environment where contributions matter daily.
  • Cutting‑edge fintech
  • Shape the future of open banking in one of Europe’s fastest‑moving ecosystems.

Job title

Senior Software Engineer – C#, Java

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Location requirements

Report this job

See something inaccurate? Let us know and we'll update the listing.

Report job