.NET Developer

Job description

Are you our new .NET Developer? 🚀

We're looking for an experienced .NET Developer to help build robust, scalable REST APIs that power our payroll and HR software solutions. In this role, you'll design, develop, and maintain APIs that connect our systems and enable seamless integration with third-party applications.

In this role, you'll:

• Design and develop modern REST APIs following industry best practices
• Create and maintain API documentation using OpenAPI specification
• Migrate legacy SOAP services to modern REST architecture
• Build and implement webhooks for real-time data exchange
• Collaborate with front-end teams to ensure effective API consumption
• Participate in API security reviews and performance optimization
• Lead API testing and quality assurance efforts

About Nmbrs:

We are a fast-growing scale-up revolutionising HR & payroll technology. With 140+ colleagues in Amsterdam, Lisbon, and Stockholm, we do things truly differently. We have no managers, offer a 4-day workweek, and give you the freedom to make a difference. For over 13 years, we've been among the fastest-growing companies in the Netherlands, and we're not slowing down. Why? Because we embrace new ideas, experiment boldly, and learn directly from the feedback of our team.

Our culture thrives on collaboration, innovation, and a proactive mindset. With a 4-day workweek and a hybrid setup, we aim to create the best possible experience for our colleagues. And have we mentioned that we work without managers? We trust our people to lead the way.

Check out the video below if you want to know more about what it's like to work in an organization without managers.

Job requirements

What you'll bring:

• Proven experience designing and building REST APIs
• Familiarity with Postman and Azure APIM
• Proficiency in C# and the .NET ecosystem
• Experience developing on SOAP API (running in IIS)
• Ability to work with web components
• Understanding of webhooks
• Energy and proactivity (focus on improvement, constantly bringing new ideas and challenging code reviews)
• Excellent attention to detail and analytical skills
• Strong ownership mentality and accountability for your work

What's in it for you:

• We offer a gross annual salary 43,8k to 63k including holiday allowance, depending on experience
• A pension scheme of 8%
• Nmbrs is a flat organization where you have the freedom and responsibility to do what you're good at and make an impact in an agile work environment
• A personal coach who helps with your personal and professional growth, as well as an annual 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 day for yourself to do what benefits you most
• We have a large and bright office close to Sloterdijk train station, and all floors of the office are accessible by elevator
• Bring your best furry friend to work. We have a pet-friendly workplace
• 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

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.

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