.Net Fullstack Developer

We are looking for a .Net Fullstack Developer to join our dynamic Payroll II team. You will be responsible for maintaining and enhancing our applications, implementing new features, improving existing functionality, and contributing to architectural evolution — including the refactoring of legacy systems into microservices and micro front ends.

In this role, you'll:

• Maintain and develop the current web application
• Design, develop, and implement new features and functionality
• Identify, troubleshoot, and fix bugs and security issues
• Improve overall product quality, performance, and scalability
• Write testable, maintainable, and high-quality code, including unit tests
• Participate in weekly deployment rotations (once per quarter)
• Join a sub-chapter of your choice to deepen expertise in a specific technical domain and contribute to organisational innovation

About Nmbrs:

We're a fast-growing scale-up building innovative HR & payroll technology. With 150+ colleagues in Amsterdam, Lisbon, and Stockholm, we do things differently. No traditional managers, a 4-day workweek, and the freedom to make an impact.

What you'll bring:

• 3+ Years of experience as a full stack developer (Saas industries or Payroll industry will be a plus)
• Proficiency in C#, JavaScript, SQL, HTML, and CSS
• Experience working in Azure environments (DevOps, Pipelines)
• Strong knowledge of GIT (preferably GitHub)
• Ability to produce testable code and implement unit testing
• Experience with REST API design and development
• Familiarity with web components and front-end modular design
• Energetic and proactive approach with a focus on innovation and improvement
• Demonstrated ownership of tasks and ability to deliver high-quality results
• Nice to have
• Experience with AI tools, such as Cursor
• Experience working with containers
• Payroll software experience

Current & Upcoming Projects:

• Developing a new data presentation layer using micro front-ends to extract data from monolithic systems
• Leveraging AI tools (Cursor) to refactor monoliths into microservices
• Implementing payroll-related improvements and feature upgrades

What's in it for you:

• We offer a gross annual salary 52K to 61K including holiday allowance, depending on experience
• We offer a pension scheme of 15%
• Nmbrs is a flat organisation in which you have the freedom and responsibility to do what you are good at and have an impact, in an agile working environment
• A personal coach who helps you with your personal and professional growth as well as a yearly budget for training and personal development
• We ensure a healthy work-life balance
• For us full-time means a 4-day workweek giving you one paid personal day to spend in a way that will benefit you the most;
• We have a big and light office space close to the Sloterdijk train station, and all the floors of the office are accessible by elevator
• We work hybrid at Nmbrs
• We have monthly fun events, and twice a year all offices come together for an amazing event at a very secret location to foster togetherness and innovation and celebrate with each other
• Nmbrs offers the opportunity to go on an exchange to our offices in Lisbon or Stockholm for up to 4 months

Please note: We are not able to consider candidates who are not living and working in Portugal. At this moment we are not providing relocation sponsorships.

As part of our hiring process, we conduct a criminal background check for all candidates reaching the final stages. This helps us ensure a safe and secure environment for everyone.

At Nmbrs, we celebrate diversity and promote an inclusive environment in which our team members from all different backgrounds, ages, genders, or sexual orientations feel equally appreciated. To achieve this, we are committed to shaping a hiring process that provides everyone with an equal opportunity to get hired.