Senior Full-Stack Developer (.NET / React) | Permanent | Warsaw / Poznań | Hybrid

We are partnering with a well-established international organization that is expanding its engineering capabilities to further develop modern digital platforms used across multiple markets. The company is investing in scalable, composable web architectures and enterprise-grade digital experience solutions supporting complex customer journeys and high-traffic content-driven platforms.

We are looking for a Senior Full-Stack Developer who enjoys working across the full technology stack and wants to contribute to building robust, future-ready web ecosystems in a collaborative and pragmatic engineering environment.

This role combines hands-on development with technical ownership across integrations, platform evolution and performance optimisation.

The role

• Designing, building, and enhancing enterprise web platforms and digital experience solutions
• Working across modern .NET backend services and frontend technologies such as React
• Developing APIs and integrations within distributed and service-based environments
• Contributing to platform architecture decisions and scalable solution design
• Supporting automated build, release, and deployment processes
• Maintaining high engineering standards through testing, code reviews, and continuous improvement
• Troubleshooting platform and integration issues across different environments
• Collaborating closely with product, UX, and business stakeholders

What we’re looking for

• Strong commercial experience with .NET in modern web application environments
• Experience delivering enterprise-scale web platforms or digital experience solutions
• Hands-on experience with React or similar modern frontend frameworks
• Experience working with enterprise CMS / DXP platforms (e.g. Optimizely, Sitecore, or similar)
• Understanding of distributed systems, integrations, and service-oriented architectures
• Experience working with CI/CD pipelines and cloud-based delivery models
• Ability to operate effectively in cross-functional teams
• Pragmatic problem-solving mindset and ownership approach
• Fluent English

Practical details

• Contract type: Permanent
• Engagement: Full-time
• Work model: Hybrid (Warsaw or Poznań)
• Start date: Flexible