Senior Fullstack Developer (.NET / Next.js)

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.

The Role Based in Budapest, you will combine time with colleagues in the office with remote working in a 50/50 hybrid arrangement as you develop and enhance Nilfisk’s public website across modern frontend applications, backend services and enterprise integrations. You will work with Next.js, .NET, headless content management in Umbraco CMS, Algolia search, and connected systems such as PIM and DAM. You will contribute throughout the delivery lifecycle by shaping technical solutions, building and testing features, improving performance and resilience, supporting releases, and helping maintain stable day-to-day operations.

A key part of the role is balancing platform modernisation with pragmatic improvements to legacy areas while protecting delivery commitments.

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