C#/.NET Developer Mobile App Team - eMobility (SaaS)

Deftpower

6d • Hybrid

About The Position

Build what more than 250,000 EV drivers use every month! Join Deftpower! Full-time · Arnhem. 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. You join the Mobile App Team, led by Jelte. A team that owns the full EV driver experience. From what users see in the app to the services running behind it. This is not a “just backend” team. This is where product, tech and real user impact come together. You build features that drivers actually use. The team is a mix of mobile developers, backend developers, QA and a Product Owner. Some work closely together in the office, others are based in Ukraine. It works because everyone takes ownership and communicates directly. You work in short cycles, ship fast and keep improving. No endless discussions. Just building, learning and improving. As Backend Developer at Deftpower you build the services behind the Mobile App and shape how drivers experience charging across Europe. You work in a team that moves fast, takes ownership and turns ideas into working features without unnecessary delays.

Requirements

• 3+ years of professional experience as a Backend Developer
• Strong knowledge of C# .NET, microservices architecture and CI/CD practices
• Experience with Azure PaaS components such as Service Bus, Function Apps, Container Services, Azure SQL or CosmosDB
• 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.

Nice To Haves

• You have familiarity with Expo or CodePush
• You have familiarity with developing mobile apps

Responsibilities

• Design and build backend services in C#/.NET using Azure Functions and microservice architecture
• Build features like EV routing, push notifications, user preferences, ratings and communication
• Work with Azure Service Bus and Azure SQL to create scalable and reliable systems
• Monitor and improve performance using tools like Application Insights and Grafana
• Collaborate closely with mobile developers, QA and Product to deliver features end to end
• Ship fast, learn quickly and continuously improve what you build

Benefits

• €2.000 training budget per year to keep learning and growing.
• Choose your own laptop to work with, up to €1.750.
• A flexible setup with hybrid working, short decision lines and a high level of trust.
• All conditions such as holiday allowance, 25 vacation days, pension, etc.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed