Senior Full Stack Software Engineer (.Net with React)

Senior Full Stack Software Engineer (.Net with React)

Endava

Cluj-Napoca, Romania

Job Description

• Design, estimate, and implement technical solutions for medium to high complexity applications.
• Participate actively in all phases of the software development lifecycle, from requirements gathering and architecture to deployment and maintenance.
• Collaborate closely with cross-functional teams to clarify requirements, processes, architecture, and priorities.
• Recommend and promote engineering best practices (e.g., DevOps, CI/CD, testing, code reviews).
• Contribute to technical decision-making, including proposing and designing solutions autonomously.
• Participate in code reviews, providing constructive feedback and ensuring high code quality.
• Identify risks, propose improvements, and proactively resolve development challenges.
• Stay current with emerging technologies and advocate for continuous learning within the team.
• Mentor and guide less experienced engineers, contributing to a culture of technical excellence.

Qualifications

Professional Experience

• 5+ years of hands-on experience delivering production-ready software solutions that address real business needs.
• Proven ability to take ownership of features from design to deployment.

Backend (.NET)

• Strong experience building scalable and maintainable backend services using C#, .NET 6/8, ASP.NET Core
• Solid experience with Entity Framework, LINQ, and modern data access patterns
• Strong knowledge of SQL and relational databases
• Good understanding of software architecture and design principles (SOLID, clean architecture, layered architecture)
• Experience designing and consuming RESTful APIs
• Understanding of asynchronous programming and performance optimization
• Nice to have: experience with cloud platforms (Azure, AWS, GCP)

Frontend (React)

• Strong hands-on experience with React and TypeScript
• Experience building responsive, modern web applications using HTML5, CSS3
• Understanding of component-driven architecture and state management
• Familiarity with modern frontend tooling (npm/yarn, bundlers, etc.)
• Experience integrating frontend applications with REST APIs

Engineering Practices & Tooling

• Experience with microservices architecture
• Experience improving system performance and scalability
• Experience participating in architectural decisions
• Experience with unit and integration testing frameworks
• Experience with CI/CD pipelines
• Proficiency with Git or other version control systems
• Familiarity with containerization (Docker is a plus)
• Experience working in Agile/Scrum environments

Soft Skills

• Strong analytical and problem-solving skills
• Ability to work independently and take initiative
• Good verbal and written English communication skills
• Collaborative mindset and team-oriented attitude
• Ability to mentor junior developers