Stage - Software Engineer - H/F TOHMO
Infrastructures de recharge pour une mobilité électrique durable.
Traineeship
Paris
Occasional remote
Salary: Not specified
< 6 months
No diploma
Skills we're looking for
Teamwork
Continuous improvement
Java
React
GitHub
+9
You'll be part of
300 employees
Mobilité
Energie
Automobile
Average age: 30
Founded in 2014
67%
33%
⚡ Tohmo ( Ex ChargeGuru x Zeplug) : Accélérateur de la transition vers une mobilité électrique durable
Tohmo est un acteur majeur de la mobilité électrique, avec une ambition claire : faciliter l’accès à la recharge et accélérer la transition énergétique.
Nos solutions :
🚗 Recharge privée et professionnelle : Nous proposons des infrastructures de recharge innovantes et accessibles, adaptées aux particuliers, aux copropriétés et aux entreprises.
⚡ Technologie & Performance : Grâce à des systèmes de gestion intelligente de l’énergie, nous optimisons la consommation et réduisons les coûts tout en garantissant une recharge efficace.
🌍 Engagement environnemental : Nous agissons sur le premier secteur émetteur de CO2, les transports, en rendant la mobilité électrique plus simple et accessible à tous.
Avec près de 300 collaborateurs passionnés et engagés, nous avons l’énergie pour relever le défi d’une mobilité plus durable. 🚀
You'll be working on
About the Role
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
We're looking for
🔎 What We're Looking For
Required
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), ideally Java
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
Why Join Us
Mission-driven work: Every line of code contributes to accelerating the EV transition across Europe
Real ownership: Junior doesn't mean spectator — you'll ship meaningful features quickly
AI-first culture: We embrace the best tools and expect everyone to keep learning
Tight-knit team: ~20 engineers who genuinely enjoy working together
Paris centre office, hybrid setup
Strong product ambition and a fast-moving roadmap
Tech watch, learning budget, and an environment that values curiosity
💼 How We Hire
We keep our process lean and respectful of your time:
Intro call with a recruiter (30 min)
Technical interview with a tech lead — a mix of code and discussion (1h)
Team fit conversation with the squad lead, CTO or CEO (45 min)
We aim to move fast. You'll hear from us at every step.
ChargeGuru / Zeplug is an equal opportunity employer. We welcome applications from all backgrounds and experience levels.
Benefits
Key figures
In short
Founding year
2014
Employees
300
Average age
30
Gender
33%
67%
