Backend Engineer - Internship (6 months)

Qonto; Paris; Hybrid; EUR 12,000 - 18,000; Full time

Benefits offered by this job

Hybrid work policy

Gympass

Lunch card

Public transport subsidy

Team events

1 paid day off per month

Inclusive environment

Job summary

Qonto in Paris is seeking a Backend Engineer Intern to join a squad with full ownership of its product scope. You’ll work on real production code in Go and Ruby, contributing to features like card authorization, transfers, onboarding, and our payment gateway, with mentorship from a senior engineer.

This end-of-studies internship welcomes strong candidates at any level, offering daily collaboration, learning from a dedicated mentor, and an AI-first environment to learn and grow.

Qualifications

• Basic coding knowledge in any language and SQL.
• Able to read, write, and review production code.
• Comfortable working in English and with AI-assisted workflows.

Responsibilities

• Ship real features in Go and Ruby such as card authorization, transfers, onboarding, or our payment gateway.
• Join the team from day one and participate in daily processes and sprints.
• Learn from a dedicated mentor through weekly one-on-ones and feedback.

Skills

Go

Ruby

SQL

English

Curiosity

Tools

Cursor

Claude Code

Copilot

Job description

Our mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe’s leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.8 on Trustpilot, ****based on 55,000+ reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here).

Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,700 Qontoers serving over 750,000 customers across 8 European countries. We have been profitable since 2023, and we are just getting started.

Our beliefs: We hire for skills and potential. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn’t a program; It’s who we are. We’ve built a discrimination-free hiring process because the best teams are built on merit.

AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it.

Join us as a Backend Engineer Intern and help build the financial features our customers use every day. You’ll work in a squad with full ownership of its product scope, learning on real production code with senior engineers. This is an end-of-studies internship, though strong candidates at any level are welcome.

What you’ll do

• Ship real features: You’ll build and release features such as card authorization, transfers, onboarding or our payment gateway.
• Join the team from day one: You’ll take part in the dailies and the team’s regular processes like any other engineer.
• Learn from a dedicated mentor: A senior backend engineer will coach you through weekly one-on-ones and continuous feedback.
• Read, write and review production code: You’ll work in Go and Ruby, using AI tools (Cursor, Claude Code, Copilot…) to learn and build faster.
• Shape what you build: You’ll join product discussions with Tech, Product and Design and help influence the direction of your features.

What we’re looking for

• Curiosity: You’re eager to learn and comfortable navigating complexity.
• Openness to feedback: You take feedback well and use it to grow quickly.
• Coding basics: You know the basics of coding in any language and of SQL.
• AI-native workflow: You already use AI to build, debug and learn faster.
• English: You’re comfortable working in English.

What we can offer you

• A senior mentor: You get one-on-one time every week with an experienced engineer.
• Direct access to your manager: You have a manager you can go to throughout your internship, beyond your mentor.
• An AI-first environment: AI is part of how the whole team builds, from day one.
• Onboarding: A dedicated learning program, documentation, pair programming and your mentor will get you up to speed quickly.

Your future team

You’ll join one of Qonto’s backend squads. Each squad has full ownership of its product scope and works with Product and Design. You’ll be part of a 190+ backend engineering community, from all over the world.
Our methodology, the Qonto Way

• We value upfront technical design, team reviews, and smart slicing — quality drives the velocity our customers need.
• Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates.
• Our lean toolbox, Kaizen and PDCA, lets you monitor and drive continuous improvement collaboratively with your peers and manager.

Perks

• Flex your schedule. Work from home up to 2 days a week with our hybrid policy.
• Stay active. Gympass gives you access to 3,000+ sports and wellness partners.
• Eat well. Lunch card, 50% on us.
• Get around. 50% of the cost of your public transportation pass is covered.
• Enjoy the rest. Team events, snacks, and beverages.
• Take time off. 1 paid day off per month, no questions asked.
• Be yourself. An inclusive, supportive environment where everyone belongs.

At Qonto, we understand that true diversity isn’t just about ticking boxes on a hiring checklist. Apply regardless of the boxes you tick — who knows? You may have the missing piece of the puzzle we’ve been searching for all along.

By applying, you agree that Qonto processes your personal data to assess your application. Your data is kept for up to 2 years in our candidate pool. Read our Privacy Notice for full details.

On average, our hiring process lasts 15 working days, with 3 steps:

• Interview with our recruiter
• Interview with your future mentor/manager
• Case Study debrief

Your security matters to us

Recruitment scams are on the rise. Keep in mind, we will never work with third-party platforms or agencies that request payment from candidates.

If you receive a suspicious message claiming to be from Qonto, please report it right away ([e-mail])