Senior .NET & React Developer – Application Architecture & UX Enhancement

Senior .NET & React Developer – Application Architecture & UX Enhancement Krakow Hybrid .NET C# CSS DevOps HTML5 React SDLC SQL SQL Server T-SQL Web API English Senior Banking, Corporate Banking Developer Ignite innovation at the intersection of robust architecture and seamless user experiences — shape the future of scalable, high-performance web applications! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior .NET & React Developer – Application Architecture & UX Enhancement, you will be working for our client, a forward-thinking company in the software industry dedicated to delivering cutting-edge solutions that empower users and streamline business processes. In this role, you will lead the design of software architecture, enhance the user experience, and implement scalable, secure backend services, all contributing to innovative digital transformations. Your main responsibilities: Participate in the software architecture design process to ensure scalable and maintainable solutions Lead UI changes and improvements to enhance overall UX and application stability Implement solutions following best Design Patterns to promote code quality and reusability Analyze requirements thoroughly to recommend and develop improvements Create comprehensive and clear documentation for developed solutions Develop and work on application prototypes to validate concepts and designs Manage changes through the Service Management lifecycle, ensuring stability and efficiency Actively contribute to automation and continuous improvement of the Service Management lifecycle Provide exceptional customer support by addressing and resolving technical issues promptly Communicate effectively with customers to understand their needs and deliver tailored solutions You're ideal for this role if you have: At least 7 years of professional experience in production applications development within .NET ecosystems Strong front-end experience with React, focusing on building dynamic, high-performance web interfaces Proficiency in C# and Web API development, with a solid understanding of backend scalability and security Advanced SQL skills with SQL Server, including T-SQL scripting, query optimization, and performance tuning Hands-on experience with DevOps practices such as CI/CD pipelines Familiarity with the full Software Development Life Cycle (SDLC), from requirements gathering to deployment and maintenance Strong knowledge of modern web technologies including HTML5 and CSS for creating responsive UI Exceptional problem-solving skills and attention to detail to ensure high-quality deliverables It is a strong plus if you have: Relevant certifications in .NET, React, or Cloud technologies Language Required for the role: Fluent English, both spoken and written Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER 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.