.NET & React Architect - Cracow - Poland - Hybrid 2 days a week

We are seeking an experienced .NET & React Architect to lead the design and implementation of scalable, enterprise-grade web applications within a global environment. This role combines hands-on technical leadership with architectural ownership across backend and frontend domains, including strong alignment with UX/UI best practices. The successful candidate will define architectural standards, ensure system scalability and security, and support distributed development teams in delivering high-quality digital solutions. Key Responsibilities • Define and oversee end-to-end solution architecture using .NET (Core/6+) and React • Design scalable backend systems, APIs, and microservices • Establish frontend architecture standards, component strategies, and state management patterns • Ensure performance, security, maintainability, and scalability across applications • Align technical solutions with UX/UI best practices, accessibility, and responsive design • Provide architectural guidance, conduct code reviews, and mentor development teams • Collaborate with product, UX/UI, and global stakeholders • Support cloud-native architecture and DevOps practices (Azure preferred) Required Skills & Experience • Extensive experience with .NET / .NET Core in enterprise environments • Strong expertise in React and modern frontend ecosystems • Proven experience designing distributed systems and microservices architectures • Solid understanding of UX/UI principles and user-centered design • Experience with RESTful APIs and system integrations • Knowledge of TypeScript, state management libraries, and modern frontend tooling • Experience with CI/CD pipelines and DevOps practices • Cloud experience (Azure preferred) • Strong communication skills in English Nice to Have • Experience building or maintaining design systems • Experience in global or distributed teams • Strong background in performance optimization and security best practices What We Offer • Long-term B2B engagement • Competitive daily rate • Participation in international, enterprise-scale projects • Hybrid working model in Kraków • Opportunity to shape architectural direction in a global organization If you meet the above criteria and are interested in long-term architectural ownership within a global environment, we encourage you to apply.