Middle Full-Stack Engineer (React and .Net)

We are looking for a Middle Full-Stack Engineer (.NET) to join the Integra team, with a stronger emphasis on frontend development and meaningful backend contribution. The role involves building and improving payment-related experiences and supporting systems, writing automated tests, and collaborating in an iterative team environment.

• Design, build, and improve frontend experiences that support payment flows and customer interactions (React).
• Contribute to backend development for integrations, service coordination, and enhancements across existing systems using C# and .NET.
• Write, maintain, and improve automated tests to support reliable, scalable delivery.
• Work with internal systems and third-party providers to implement and support payment-related integrations.
• Collaborate with engineers and cross-functional partners in an iterative development environment to deliver product and platform improvements.
• Work with complex SQL queries and data flows in a high-load environment where quality and performance matter.
• Help identify and implement technical improvements that strengthen payment experience, system reliability, and operational efficiency.
• Collaborate with teammates to understand business needs and translate them into reliable technical solutions.
• Use AI-assisted development tools to support engineering productivity and delivery.
• Participate in code reviews and contribute to strong engineering standards across the team.

• Minimum of 3 years of professional experience in software engineering, with a frontend focus
• Proficiency in .NET frameworks, C#, and data access technologies.
• Proficiency in front-end technologies such as HTML5, CSS3, JavaScript, TypeScript and React.
• Knowledge of MS SQL, including working with more complex queries and performance-sensitive data scenarios.
• Familiarity with writing unit and integration tests (e.g., using Jest, NUnit, Playwright, React Testing Library, or similar frameworks).
• Interest in learning the payments domain and developing an understanding of the business logic behind payment flows.
• Experience with LLMs / Generative AI tools (e.g., OpenAI, Copilot, Cursor).
• Upper-intermediate level of English or higher.

• Time off throughout the year (paid and unpaid)
• Professional development support and encouragement
• Resources to help improve your overall well-being
• Free JustAnswer membership