Senior Backend Engineer | HeyCharge

GT was founded in 2019 by a former Apple, Nest, and Google executive. GT’s mission is to connect the world’s best talent with product careers offered by high-growth companies in the UK, USA, Canada, Germany, and the Netherlands.

On behalf of HeyCharge , GT is seeking a Senior Backend Engineer to take ownership of the core backend systems powering a globally scalable EV charging platform. You will help design and build the backbone that connects chargers, cloud, and user interfaces — ensuring HeyCharge products work seamlessly online and offline.

About HeyCharge

HeyCharge is a Munich-based startup on a mission to make electric vehicle (EV) charging more accessible, reliable, and affordable.

Their platform focuses on software and connectivity rather than hardware — simplifying the entire lifecycle of charger management, from installation and billing to monitoring and load control.

In Germany, HeyCharge operates as a full-service Charge Point Operator (CPO), while their patented SecureCharge technology powers a global platform used by other CPOs and manufacturers to build offline-capable, secure, and cost-efficient charging solutions.
Backed by Y Combinator and expanding rapidly across Europe, HeyCharge is redefining how EV charging infrastructure is deployed and managed.

About the Role

We are looking for a hands-on backend engineer with a strong technical foundation and a passion for building systems that bridge hardware and software. You’ll architect , implement , and optimize distributed systems that connect thousands of chargers and users globally.

This role sits at the intersection of backend development, systems architecture, and product engineering — ideal for someone who enjoys solving complex, real-world problems with elegant and scalable solutions.

Key Responsibilities

1. Backend Architecture & Development

   • Design and implement the core backend systems powering HeyCharge’s global platform.

   • Develop APIs, event pipelines, and data models for large-scale, real-time operations.

   • Ensure scalability, reliability, and performance across all backend components.

2. System Design & Integration

   • Define communication flows between chargers, mobile apps, and cloud services.

   • Work closely with hardware and mobile teams to integrate physical interactions into seamless digital experiences.

   • Build and maintain secure, efficient data pipelines that support real-time operations.

3. Scalability, Security & Observability

   • Implement fault-tolerant designs, monitoring tools, and alerting systems.

   • Champion best practices in data privacy, encryption, and authentication.

   • Continuously improve system performance and reliability through automation and CI/CD pipelines.

4. Collaboration & Technical Leadership

   • Partner with product and design teams to translate technical capabilities into customer value.

   • Lead by example through code reviews, documentation, and mentorship.

   • Contribute to long-term architectural strategy and roadmap.

Essential knowledge, skills & experience:

• 5+ years of experience in backend development with TypeScript/NestJS/Node.js .

• Strong understanding of Google Cloud Platform (GCP) , particularly Firebase .

• Proven experience designing microservices , event-driven architectures , and distributed systems .

• Solid background in SQL and NoSQL database design.

• Experience with API security , encryption , and authentication protocols .

• Hands-on approach — able to move from architecture to implementation with speed and precision.

• Excellent communication skills and ability to collaborate across technical and non-technical teams.

• Fluency in English (German is a plus).

Nice-to-have

1. Experience with IoT messaging protocols (MQTT, WebSockets, BLE).

2. Background in connected devices , mobility , or energy systems .

3. Familiarity with Rust or Angular .

4. Passion for embedded systems and products that connect the digital and physical worlds.

5. Previous experience in EV charging , smart home , or hardware-integrated platforms .

Soft Skills

• Ownership mindset – takes initiative and drives projects independently.

• Clear communication – collaborates effectively across technical and product teams.

• Adaptability – thrives in a dynamic, fast-paced startup environment.

• Problem-solving approach – combines analytical thinking with practical execution.

• Curiosity and attention to detail – continuously learns and delivers reliable, high-quality work.

Interview Steps

1. GT interview with Recruiter

2. Technical interview

3. Final interview