Software Engineering Internship

You know the feeling: you are looking for a new housemate, post a message online, and receive 150 responses. Chaos. No overview. No sense of who really suits your household.

That is why we are building Dingdong: the ultimate platform to find your perfect housemate more easily. With our application, we make the search for a room or housemate more social, intelligent, and enjoyable.

Daily, thousands of students and young professionals use Dingdong. Behind every swipe, chat, and match runs a mobile infrastructure built with React Native, Django, PostgreSQL, Firebase, and Google Cloud.

As we are growing rapidly, it is becoming increasingly important to understand how users engage with the application. Where do users drop off? Which screens load slowly? Where do errors occur during registration, login, or matching?

Therefore, we are seeking a Software Engineering intern from September 2026 to help us make Dingdong faster, more stable, and more reliable. 🚀

🎯 Internship Assignment

During this practical internship, you will research and improve the performance, reliability, and scalability of a mobile application used daily by thousands of students.

Main Question

How can the reliability and user experience of a mobile application be enhanced by rendering performance issues transparent more quickly and addressing them structurally?

To answer this question, your research will include:

How crashes, errors, and performance issues can be made more transparent
Which components of the application cause the most technical issues or user friction
How registration, login, and authentication processes can be made more reliable
Which performance optimisations have the greatest impact on the user experience
How monitoring, testing, and quality assurance can be structured systematically

You will be given ample opportunity to conduct independent research, design solutions, and actually implement them within the platform.

💻 What will you do?

During this internship, you will contribute to the technical foundation of a growing mobile application.

Your responsibilities will include:

Improving the performance of the application
Investigating and improving slow screens and user flows
Implementing monitoring and error detection
Setting up dashboards and technical insights
Detecting and analysing bugs
Testing the application on various devices
Contributing ideas regarding scalability and software quality

You will work directly with the founders and will be given significant responsibility and freedom to implement improvements.

🛠️ Technologies

During your internship, you will work with technologies such as:

React Native
TypeScript
Django
PostgreSQL
Firebase
Google Cloud
GitHub
CI/CD pipelines

🧠 Candidate Profile

You are pursuing a Bachelor’s degree (HBO) in ICT, Software Engineering, or Computer Science
You are looking for a practical internship starting in September 2026
You possess a keen interest in mobile applications and startups
You work independently and take initiative. Should you encounter obstacles, you communicate proactively so that we can find a solution together swiftly.
You are curious about the technical inner workings of large-scale applications
Leaning into startup dynamics, building, and fast-paced environments appeals to you

⭐ Bonus points if you have experience with

React Native
TypeScript
Firebase
Python or Django
Google Cloud
Monitoring tools
Test automation
Living with housemates :)

However, do not be concerned if you are not yet familiar with all of these. During your internship, you will receive plenty of opportunities to develop these skills.

🚀 What we offer

A look behind the scenes of a fast-growing startup
Considerable responsibility and direct impact on a product used daily
Working with modern technologies such as React Native, Firebase, and Django
Flexible working hours
An appropriate internship allowance
Office located in the heart of Amsterdam
Friday afternoon drinks every week
Opportunity to work from home one day per week

📈 What will you learn?

By the end of your internship, you will have gained experience in:

Mobile app development
Cloud infrastructure
Monitoring and observability
Performance optimisation
Security and authentication
Software testing
Working within a startup environment

You will not only deliver an internship report, but you will also actively contribute to a product used by thousands of students.

📍 About Dingdong

Dingdong is the premier platform for finding a new housemate or room. Whereas traditional platforms primarily focus on commercial transactions with landlords, Dingdong focuses on finding the best match between future housemates.

Our ambition? To become the largest platform for finding housemates. First in the Netherlands, and subsequently internationally.