SOFTWARE DEVELOPMENT INTERN
Posted: 30 April, 2026
Summary
About the role
Join AQUABATTERY today, a pioneering climatetech startup with a mission to commercialise a affordable, safe and sustainable long duration energy storage (LDES) based on saltwater. Our innovative flow battery technology offers an LDES solution without relying on critical or toxic raw materials.
With fresh funding secured and our first commercial product on the horizon, this is an exciting time to become part of our growing team and contribute to building a cleaner, more resilient energy future.
As an Software Development Intern, you will support the development of an internal lab inventory system to improve how we track and manage key components used in our R&D processes. Working with a modern Python-based stack, you will contribute to building a practical tool that helps the team operate more efficiently and make better use of resources. This is a hands-on role where you will work with real data, contribute to an existing codebase, and see the direct impact of your work.
The internship will have a duration of 4 months with the required availability of 3-4 days per week.
What you’ll be doing
- Contribute to the development of an internal lab inventory system
- Work on a Python-based backend to track key lab components such as membranes, chemicals, and spacers
- Expand and maintain a PostgreSQL database to support inventory tracking
- Develop and improve features within the existing codebase
- Write tests to ensure reliability and maintainability of the system
- Collaborate with the team to understand requirements and translate them into technical solutions
Function requirements:
We expect from you
- Currently enrolled as a student in Software Development, Computer Science, or a related field
- Experience with Python (SQLAlchemy and FastAPI required; PyQt6 is a plus)
- Basic knowledge of SQL (preferably PostgreSQL)
- Familiarity with Git version control
- Ability to work independently and take ownership of tasks
- Comfortable asking questions and challenging assumptions when needed
- Open to feedback and code reviews
- Good communication skills in English
Excited to join? Get in touch with us today!
About our company
AQUABATTERY is a climate-tech start-up, based in the Netherlands. Our vision is to empower the transition to net-zero by providing the world’s most scalable, sustainable and safe long duration energy storage solution. We do so through our revolutionary technology, which enables the storage of electricity in just saltwater. The world will need high volumes of energy storage to enable reliance on renewable energy sources like solar PV and wind energy, even if the sun does not shine or the wind does not blow. Our technology has been successfully demonstrated through several pilot installations in the Netherlands and in Italy. Our international team reinforces our impact-focused culture every day; taking on challenges and celebrating successes together. If you are excited to know more, check out our open positions to join the ride!
