YamSoft UAB specializes in customized software development and AI-driven solutions for the fintech industry, ensuring seamless, secure, and efficient transactions. Based in Lithuania, we are at the forefront of AI integration for payment gateways. We focus on delivering high-performance, scalable, and secure systems for businesses worldwide.

We’re looking for a Full Stack Developer with experience in .NET and React to help us develop and maintain scalable, reliable web applications in a collaborative environment. 

What You’ll Be Doing:

• Build and maintain scalable, performant APIs using C#/.NET (ASP.NET Core)
• Develop clean, efficient user interfaces with React + TypeScript
• Collaborate with cross-functional teams (Product, QA, DevOps)
• Follow best practices in architecture, testing, and documentation
• Contribute to code reviews, CI/CD pipelines, and system design decisions

What You Bring:

• 5+ years of experience in software development
• Strong knowledge of C#, .NET Core (Web API, EF Core)
• Solid experience with React, JavaScript/TypeScript, HTML/CSS
• Comfortable working with SQL databases (MS SQL, PostgreSQL)
• Familiar with version control (Git), RESTful APIs, and Agile practices
• Proactive attitude, strong communication, and a love for clean code

Nice to Have:

• Experience in fintech or payment solutions
• Familiarity with payment gateways (Stripe, Adyen, etc.)
• Understanding of PCI-DSS, 3D Secure, or fraud prevention flows
• Knowledge of Azure, Docker, or microservices architecture

The salary range for this position is €3000–€4000 gross per month. The final offer will be made based on experience, skills, and overall match.