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Fullstack Software Engineer (.Net and React)

Diligent - Budapest, Hungary - In-office - posted 2026-08-26

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Diligent is seeking a Fullstack Software Engineer to join its Budapest-based team. The role focuses on building modern, responsive web applications using React and .NET, with an emphasis on leveraging AI-assisted development tools to accelerate delivery and maintain high code quality. Key responsibilities include: - Implementing end-to-end product features, from sleek UI improvements to backend API integration - Using agentic coding assistants (Cursor, Claude Code, GitHub Copilot, Windsurf) to accelerate development while maintaining critical code review and architectural standards - Collaborating with cross-functional squads including product designers, managers, and peer engineers in an agile environment - Participating in code reviews, optimizing performance, and championing clean-code practices - Debugging and refactoring AI-generated code to ensure security, test coverage, and scalability Required qualifications: - Proven professional experience building modern web applications with JavaScript/TypeScript and component-based frameworks (React, Angular, or Vue) - Full-stack awareness: comfortable with backend services, RESTful APIs, and data models - Hands-on experience with AI development tools in daily workflows - Strong debugging and code auditing skills with attention to edge cases and performance - Product-first mindset with strong communication and collaboration skills Desirable experience includes automated testing (Jest, Playwright, Cypress), Docker, CI/CD pipelines, custom agentic workflows, and cloud platforms (AWS, Azure). Diligent is an AI-driven governance, risk, and compliance (GRC) SaaS platform serving over 1 million users and 700,000 board members. The company emphasizes bold thinking, rapid execution, and continuous learning in a culture that embraces AI-driven innovation.

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