First seen by Alion on Sep 30, 2026.
Ignite innovation in software development - shape the future of scalable, secure, and high-performance applications!
Kraków-based opportunity with hybrid work model.
As a Senior .NET Full Stack Developer, you will be working for our client, a leading player in the technology industry dedicated to delivering impactful digital solutions. You will contribute to building and maintaining robust applications within the .NET ecosystem, with a focus on frontend development using React and advancing DevOps practices. This role offers an exciting path to innovate, grow your expertise, and influence industry standards.
Your main responsibilities:
- Implement solutions following best design patterns to ensure scalability and maintainability
- Analyze requirements thoroughly and recommend improvements to enhance product quality
- Lead UI enhancements to boost user experience and application stability
- Drive DevOps automation efforts, improving CI/CD lifecycle efficiency
- Manage changes through the service management lifecycle, ensuring smooth deployment processes
- Participate in architecture design and develop prototypes to validate concepts and designs
- Provide exceptional customer support by addressing issues promptly and communicating solutions clearly
- Contribute to continuous improvement initiatives across development and operational workflows
You're ideal for this role if you have:
- Minimum of 7 years of professional experience in development within the .NET ecosystem, including frontend development (preferably React) and DevOps activities
- Proficiency in C# and Web API development, with a solid understanding of building scalable and secure backend services
- Strong hands-on React skills, focusing on creating dynamic and high-performance web applications
- Expertise in database design and SQL, particularly with SQL Server, including advanced T-SQL scripting, query optimization, and performance tuning
- Experience with the entire Software Development Life Cycle (SDLC), from requirements gathering to deployment and maintenance
- Exceptional problem-solving skills and keen attention to detail
It is a strong plus if you have:
- Additional certifications related to DevOps or software architecture
- Experience with containerization or cloud platforms such as Azure or AWS
Language required for the role:
Communicative English
Eligibility to work in Europe:
Only candidates with an existing legal right to work in the European Union will be considered for this role.
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

