Senior .NET Developer (Fintech)

TL;DR

Senior .NET Developer (Fintech): Designing and delivering secure, scalable, cloud-native backend services for a modern payments platform with an accent on API design, event-driven architectures, and microservices. Focus on applying DDD, TDD/BDD, and contributing to continuous improvement of engineering standards.

Location: Krakow

Company

ClearAccept is a modern payments business building a cloud-native platform on AWS.

What you will do

• Design and build backend services using C# and .NET (latest LTS).
• Develop REST APIs / Minimal APIs in a microservices environment.
• Work with event-driven and asynchronous architectures.
• Collaborate on solution design, story estimation, and delivery.
• Apply DDD, TDD/BDD, and clean coding practices.
• Review code, improve existing services, and mentor other developers.

Requirements

• 5+ years’ experience as a software developer.
• Strong experience with C# and .NET.
• Solid background in Web API development.
• Experience with SQL and NoSQL databases.
• Understanding of distributed systems and asynchronous programming.
• Experience with CI/CD and secure coding practices.
• Strong communication skills and a collaborative mindset.

Nice to have

• Payments or financial services experience.
• PCI DSS exposure.
• Hands-on CQRS experience.

Culture & Benefits

• Work with a modern tech stack and cloud-native architecture.
• Have real influence on technical decisions.
• Collaborate with an experienced engineering team.
• Opportunity to grow with a scaling payments platform.