Senior Fullstack Developer (.NET / Next.js)

Employer · Nilfisk

Web and multimedia developerSoftware developerApplications developerFull-time

Budapest

Join Nilfisk as a Senior Fullstack Developer and help shape our public website for customers across multiple markets. You will turn thoughtful UX and UI designs into fast, reliable digital experiences while modernising a composable web landscape built on .NET, Umbraco CMS and Next.js. This role combines hands-on engineering, architectural influence, close teamwork and visible business impact.

Tasks

  • Design, build and maintain production-grade web experiences with Next.js and Umbraco, translating Figma designs and business needs into responsive, accessible customer journeys.
  • Develop and improve .NET backend services and integrations, including API orchestration, caching, performance optimisation and resiliency patterns.
  • Create stable, well-designed content and product data flows across Algolia, PIM, DAM and other integration points.
  • Build, deploy and operate solutions on Microsoft Azure using services such as App Service, Functions and Azure Storage.
  • Drive quality throughout delivery by self-testing changes, writing maintainable code, reviewing pull requests and reducing regression risk.
  • Improve the platform and team effectiveness by refactoring legacy code and strengthening component architecture.

Conditions & benefits

International working environmentAn international working environment with close collaboration across disciplines and opportunities to strengthen both technical and architectural skills.Culture built on trust and freedomA culture built on trust and freedom, with a strong growth mindset and a supportive team.

Requirements

  • Strong hands-on experience with .NET and building production-grade applications with Next.js.
  • Solid understanding of modern React patterns, component architecture, responsive design, and the trade-offs involved in performance, scalability and maintainability.
  • Experience with .NET backend services API design, and Redis or comparable caching technologies.
  • Clear communication skills and the ability to work effectively both independently and as part of a cross-functional team.
  • Strong understanding of data fetching, caching and API integration to build resilient customer journeys.
  • A quality-focused approach to development, including testing, code review and reliable delivery.

Posted Nov 6, 2026 · Updated yesterday · 0 views