Stage - Software Engineer - H/F

We're looking for a motivated end-of-study intern (Bac+4/Bac+5, engineering school or university) to join our Engineering team for 6 months and contribute to real product challenges - not a side project, not internal tooling no one uses.

You'll be embedded in a product squad, working alongside confirmed engineers, a Product Manager, and a Tech Lead who will mentor you throughout your internship. You'll get hands-on exposure to our Salesforce ecosystem and learn how a modern engineering team ships software at scale.

This internship is a genuine opportunity to grow fast and, if things go well, a potential path to a full-time role.

Your Team

You'll join a tech team of ~20 engineers organised into 4 product squads. Each squad owns a domain and ships continuously. We value:

• Clear ownership and accountability
• Pragmatic engineering decisions
• Strong feedback loops (code reviews, monitoring, retros)
• Continuous improvement in craft and delivery

What You'll Do

• Learn and contribute to our Salesforce platform: data model, automation logic, and backend features with Apex
• Participate in the design and implementation of integrations between Salesforce and internal/external services
• Contribute to backend services (TypeScript/Node.js) with guidance from your squad
• Work with Product and Design to understand user needs and translate them into working software
• Write clean, tested code and take part in code reviews
• Explore AI-assisted development tools (Cursor, Claude Code, GitHub Copilot) to accelerate your learning and output

• Currently enrolled in a Bac+4 or Bac+5 programme (engineering school, university master's) - end-of-study internship preferred
• Solid programming fundamentals: you know how to write clean code, debug, and think through a problem
• Exposure to at least one backend language (Java, Python, C#, TypeScript, or similar)
• Genuine curiosity about how software systems work in production
• Good communication in French and English

Greatly Appreciated

• Any prior exposure to Salesforce or Apex (coursework, personal project, or previous internship)
• Experience with REST APIs and understanding of web service integration
• Familiarity with Git and basic CI/CD concepts
• Interest in the electric mobility / energy transition space
• TypeScript or Node.js experience

Our Tech Stack :

️ CRM & Operations : Salesforce (Apex, Flows, Process, Builder)

️ Backend : TypeScript, Node.js, microservices

️ Infrastructure : Docker, Kubernetes, cloud-native

️ Frontend : Vue.js, React, Next.js

️ Python, PHP, NoCode tooling

Zeplug and ChargeGuru have joined forces to become a leading player in electric vehicle (EV) charging across Europe. Our mission is clear: to remove charging barriers in order to accelerate the energy transition and make electric mobility simpler, more accessible, and more efficient. Founded in 2014 and 2018, our two complementary companies now offer a unique 360° solution: from charging solutions for apartment complexes and offices with Zeplug, to dedicated support for homeowners and businesses with ChargeGuru. Operating in 8 European countries with a team of over 300 passionate employees, we share a common ambition: building a more sustainable future. Our commitment and success speak for themselves: * ChargeGuru is ISO 9001, ISO 14001, and ISO 45001 certified. * HappyIndex®Trainees 2025 Label: Zeplug was ranked #1 in the energy/environment sector for the well-being of its interns and apprentices. At Zeplug & ChargeGuru, every talent matters and contributes to transforming the mobility of tomorrow.