
Senior Web Engineer (React) - Remote friendly
Qonto · Barcelona, Spain · Remote
Strong hiring record · median 13 days open
All reasons
In its favour
- Still listed on the employer's own board
[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 4.7 on Trustpilot, https://www.trustpilot.com/review/qonto.com based on 60,000 reviews. Our culture https://qonto.com/en/careers/culture puts customer satisfaction at the core of what we do (more about our culture here https://medium.com/qonto-way/the-qonto-way-our-culture-is-our-strategy-90defd4895f9).
[OUR JOURNEY] Founded in 2016 and launched in 2017 by Alexandre https://www.linkedin.com/in/aprot/ and Steve https://www.linkedin.com/in/steveanavi/, 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 https://medium.com/qonto-way/a-recruiters-dilemma-confronting-bias-in-hiring-b78acce148eb because the best teams are built on merit.
[AI AT QONTO] AI is deeply embedded in how we work (here https://medium.com/qonto-way/ai-at-qonto-vision-statement-725a7e2f659b) - 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.
Location
You can choose to work in Qonto as long as you're living in (or willing to relocate to) either Germany, France, Italy, Serbia, or Spain.
Join us as Senior Web Engineer to craft the web apps that 750,000+ European SMEs rely on every day, from the customer-facing features that make finance simpler to the design system powering every pixel of our product.
You will join one of our mission-based teams of 5 to 10 engineers, led by a dedicated Engineering Manager. You will work alongside backend, web, iOS, and Android engineers, as well as Product Managers and Designers, in either a Product team (building features used directly by customers) or a Platform team (developing the scalable foundations that help Product teams move faster). Your team owns a clear mission end-to-end, following our "you build it, you own it" approach, and you will stay connected to the wider Web community through our Web Guild. We hold ourselves to high standards https://medium.com/qonto-way/two-powerful-tools-to-lead-your-team-to-success-49cdeeee6f66 without adding much red tape, and we ship around 150 times to production per day, with strong observability and quick rollbacks.
➡️ What you'll do
- Craft new features for our customers within a squad team, owning quality from design to production
Grow in technical leadership
lead design discussions, share knowledge with fellow web engineers, and help improve the tools and practices that support web development across Qonto
- Be a key player in teamwork with Product, Design, and other Tech stacks
Work AI-first
use AI as a default part of how you explore the codebase, draft technical designs, prototype solutions, and accelerate delivery, while keeping strong human judgment and quality standards
➡️ What we're looking for
Frontend engineering
You build production web applications with React.js, HTML and CSS. We don't use CSS libraries such as Tailwind, so you know how to write pure CSS
Attention to detail
You strive for excellence in every aspect of your job. You don't gloss over minor issues and you understand that great work is the accumulation of many small things done right
Communication
You explain your thoughts in a clear, organized, concise and accurate manner
AI fluency and good judgment
You leverage AI to move faster (research, writing, coding, testing) while staying critical, validating outputs, and protecting the product's reliability and user trust
➡️ What we can offer you
- Our methodology, the Qonto Way https://medium.
com/qonto-way/tagged/the-qonto-way
Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates
Ember to React, done
We switched app.qonto.com http://app.qonto.com to React on 8 September 2026, after migrating 1.5 million lines of code in 15 months while continuing to ship features. The final switch had no rollbacks or incidents, and page-speed scores improved.
Read Rebuilding the plane mid-flight
Qonto's Ember to React migration https://www.linkedin.com/pulse/rebuilding-plane-mid-flight-qontos-ember-react-steef-janssen-vg7yf/
Our own design system
You will contribute to and use our own design system and UI library, which we built from scratch
AI tooling
You will have access to best-in-class AI tools (e.g., Claude / Claude Code and internal workflows) and the autonomy to experiment, share learnings, and help scale what works across the guild
Developer experience
You will bring your energy and skills to improve the team's tools and processes at many levels, contributing to a better developer experience for all your peers
[DIVERSITY] 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.
[HIRING PROCESS DURATION] On average, our hiring process lasts 20 working days. More information on our candidate journey here https://qonto.com/en/careers/candidate-journey
[DATA RETENTION] 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 https://qonto.com/en/legal-documents/privacy-notice for full details.
Skills
- React
- iOS
- Android
- Tape
- HTML
- CSS
- Tailwind CSS
- Ember
- HTTP
- Anthropic Claude
- Claude Code
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