Location: Kraków, Poland (Hybrid)Contract Type: B2BIndustry: Global organization / International projects

Role Overview

We are seeking an experienced .NET / C# & 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, while ensuring 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 C#, .NET (Core/6+), and React
Design scalable backend systems, APIs, and microservices using C#
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 C# and .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.

.NET / C# & React Architect - Krakow - Poland - Hybrid

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