NET Software Developer Summer Internship
Are you a Computer science student looking to apply your .NET skills in a real-world environment? Join our Summer Internship program at Nmbrs!
About Us
We're a fast-growing scale-up building innovative HR & payroll technology. With 160+ 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 Need
Currently studying Computer Science or similar field
Experience with C# and .NET
HTML/JavaScript knowledge is a plus
Interest in AI technologies (Cursor/Claude) is a plus
Strong English communication skills
Team-oriented mindset with ownership mentality
Growth-focused attitude
Enrolled in a Portuguese University during the time of the internship and able to have an internship agreement between us, you and your school.
What We Offer
Start date - July 2026 (1.5 months duration, negotiable)
Dedicated mentorship throughout your internship
€736 monthly internship scholarship + meal allowance and working from home allowance
We work in a hybrid setup
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.

The success of a business depends on the well-being of the people that choose to work for it. And because employee satisfaction greatly relies on the smooth operation of HR processes, we’ve developed smart cloud software that makes the daily work of all involved professionals easier. By trusting our software to take care of their processes, they can take care of their people.
What makes our product unique is that it integrates both HR and payroll processes in one seamless workflow, and allows employees to have all their HR needs at their fingertips in one intuitive mobile app. Our technology automates many repetitive tasks and delegates those that require manual input directly to the people that can best supply it. With Nmbrs, HR managers, payroll professionals, accountants, and employees can collaborate in a way that reduces errors and saves everyone valuable time.
We believe that the time saved with our products is best spent on growth. We get excited when we see accountants make their businesses grow by servicing more and larger customers. And when HR departments can grow their ambitions. But ultimately, we do this for the employees. Our mission succeeds when all the people in the workplace not just get their payslips in time but also get the attention they deserve to achieve personal and professional growth.
Our vision for employee well-being transcends beyond our software. From the day we launched our company, we’ve practiced what we preach by setting the same high standards for our workplace as we’ve done for our products. With self-directing teams in three European cities, we’re inclusively collaborating across cultures. We believe this makes Nmbrs a great company to work for – and work with.