Senior Fullstack Engineer – .NET and React Development

Unleash innovation — shape the future of enterprise applications.

Krakow-based opportunity with hybrid work model.

As a Senior Fullstack Engineer – .NET and React Development, you will be working for our client, a leader in enterprise software solutions, dedicated to delivering robust, scalable, and innovative digital tools. Your expertise will drive the development of cutting-edge applications that empower businesses worldwide, supporting their digital transformation journeys.

Your main responsibilities:

• Implement solutions following best Design Patterns to ensure maintainability and scalability
• Analyze requirements to fully understand solutions and recommend improvements for optimal performance
• Lead UI enhancements and improvements to boost user experience and application stability
• Actively participate in DevOps automation and improve the CI/CD lifecycle processes
• Manage changes through the entire service management lifecycle, ensuring seamless updates
• Contribute to software architecture design and technical decision-making
• Develop and prototype applications to validate concepts and designs
• Provide exceptional customer support by addressing and resolving issues promptly
• Communicate effectively with clients to understand needs and deliver tailored solutions

You're ideal for this role if you have:

• A minimum of 7 years of professional experience in production application development within .NET ecosystems, including front-end (preferably React) and DevOps practices
• Proficiency in C# and Web API development, with a focus on scalable, secure backend services
• Strong hands-on experience with React, building dynamic, responsive web applications
• Advanced SQL skills, particularly with SQL Server, including T-SQL scripting, query optimization, and performance tuning
• Solid understanding of the SDLC, from requirement gathering to deployment and maintenance
• Exceptional problem-solving abilities and an eye for detail to ensure high-quality deliverables

It is a strong plus if you have: (optional)

• Certifications in cloud or DevOps tools
• Experience with containerization (e.g., Docker, Kubernetes)

Language Required for the role:

• Fluent English (written and spoken)

Eligibility for the role:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

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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.