Senior QA Engineer - E-Mobility Platform
About Deftpower
At Deftpower, we’re shaping the future of electric charging every single day. Our SaaS-platform helps businesses across Europe make charging simpler, smarter, and more sustainable. With AI and intelligent software, we make sure charging works seamlessly with the energy grid, creating a greener and more stable system for everyone.
We’re growing fast, thanks to a recent major investment, and there’s never a dull moment! We’re expanding, improving our technology, and teaming up with companies in over ten countries.
“I’ve never once looked at my watch hoping the day would be over. Everything I do feels meaningful.”
Michael - Business Development Manager
About the job
As QA Engineer at Deftpower you ensure the reliability, performance and scalability of our white-label e-mobility platform. You design and lead robust QA processes across mobile apps, backend services and portals. With this new role within Deftpower you set the foundation for consistent, high-quality releases that serve multiple clients and markets in Europe.
Establish and maintain QA standards and workflows across app, backend and portal development
Define and execute test plans for new features, platform upgrades and client-specific releases
Design, maintain and automate test cases for apps, APIs and portals
Validate integrations with external partners including charging providers, payment providers and energy services
Coordinate regression testing cycles and support continuous integration pipelines
What your new colleagues say

Anja, Office Manager
''Everyone is incredibly committed and motivated to make something of Deftpower.''

Wierd, Teamlead Smart Charging
“No politics, no unnecessary hierarchy. People say what they think and are honest.”

Tim, Operations
''The connection between the charging pole, the car, and our app makes us unique. It’s tangible technology anyone can understand.”

Timo, Team Lead
“On day 1, after onboarding, you can already deliver something for a customer. You make impact very quickly.”
For you
At Deftpower you’ll find more than cutting-edge tech, you’ll find a team that actually enjoys the ride! Colleagues say we are ambitious, friendly and flexible, with just the right amount of chaos to keep things interesting. Working at Deftpower is both rewarding and challenging. There are many moving parts, partners, suppliers, clients and we are a young company that is still learning. You get support from talented colleagues, and a management team that’s close, approachable, and ready to roll up their sleeves. You get the space to shape your role, to take initiative, to make real decisions, test ideas, and yes, sometimes break things. We call it 'learning fast'...
Salary range: Between €4000,- and €6800,- a month
Optional ESOP shares after a year
Choose your own laptop to work with
All conditions such as holiday allowance, 25 vacation days, pension, etc.
“Everyone is driven to make customers happy, we don't just work for the sake of working.”
- Florian, Team Lead
About you
You succeed in this role if you combine a sharp eye for quality with the drive to build reliable solutions in a fast-growing, tech-driven environment. At Deftpower, your expertise directly supports stable releases for clients across Europe.
5+ years of professional experience in a similar role
Proven ability to design and maintain automated and manual test suites
Experience coordinating regression testing cycles across multiple implementations
You must have an EU passport or valid work visa
You are a match with our values!
Our values

Drive
You love turning ideas into action. You take ownership, push projects forward and get energy from creating solutions that actually work in the real world.

Earnest
You do the right thing, especially when no one’s watching. You’re respectful, honest and reliable, colleagues know they can count on you.

Forward thinking
You’re curious and not afraid to try new things. You experiment, learn fast and spot opportunities before others see them coming. Calculated risks? You’re in.

Transparency
You believe sharing is power. You communicate openly, give constructive feedback and make your work visible so the whole team can grow together.
Our tech
The Deftpower platform is built in C#/.NET. We are heavily using Azure Functions to keep our platform as scalable as possible. We adopt a microservice architecture where services communicate with each other mainly via the Azure Service Bus. Data storage is done in a variety of ways, but Cosmos and Azure SQL databases are used most. Monitoring and logging is done with Application Insights and Grafana as well as PowerBI dashboards. The portal that interacts with the backend is written in Angular, while our mobile applications are developed in React Native. In general, we use Azure's PaaS components wherever possible to stay up to date and ready for scale.
Join Deftpower!
Here's what you can expect when you apply at Deftpower:
Depentent on the role we do a quick introduction by phone to see if there's a match on the basics. After that you'll meet the Hiring Manager or Team Lead. We'll tell you more about Deftpower, and we'd love to get to know you as a person. For some roles you'll work on a short case. Next, you will talk to a teammate so that you can get a good feel for the role and the Deftpower. For IT roles, this is when you receive the offer. For sales and operations roles there's often a third interview to give you an even broader picture of Deftpower.
Do you want to join our team as our new Senior QA Engineer? Then we'd love to hear about you!