Joko · Paris
Mobile Software Engineer (senior/staff level)
At Joko, we help consumers shop smarter. Our mission is to revolutionize shopping, empowering people to find what they need, make informed decisions, and save m...
At Joko, we help consumers shop smarter. Our mission is to revolutionize shopping, empowering people to find what they need, make
informed decisions, and save money.
Founded in Paris, Joko is a tech company and certified B Corp with over 105 talents across Paris, Barcelona, and New York (and
beyond). More than 6 million users already save money every day at 10,000+ merchants with Joko.
From cashback and automatic coupons to price alerts and carbon tracking, we keep expanding our products to make shopping smarter.
We’re now building an AI-powered shopping assistant to help users find the best products by price, quality, and environmental
impact.
Having reached profitability in our core market, we’re now scaling globally, with a strong focus on the US.
It’s still day 1, come build the future of shopping with us!
This position is remote-friendly (France and Spain).
📱OUR ENGINEERING TEAM
Our Engineering team excels at solving cutting-edge technical challenges with elegant solutions. With a strong focus on product
innovation and design, they are shaping the future of the shopping experience. Their ambition is to have a positive impact on the
everyday lives of hundreds of millions of users around the world.
Software Engineers in the Engineering team work hand-in-hand with the Product team, from exploration, design, and roadmap
prioritization to implementation, and deployment in production. At Joko, we have firsthand experience that teams with engineers
who possess a diverse range of skills, and where engineering and product collaborate closely, are able to deliver a truly
delightful and innovative user experience.
The Engineering team is currently growing fast to continuously innovate on all parts of our product and tech stack and to empower
the revolution of the way people shop online.
🎯 WHAT YOU WILL DO
At Joko, we value ownership and impact. As our Mobile Engineer, you will own meaningful parts of our mobile application in
production, from technical design to delivery and continuous improvement, while collaborating closely with the wider engineering
team.
- Mobile architecture & development: Contribute to the definition and evolution of our React Native architecture, while
designing, developing, and refactoring features in our mobile application, with a strong focus on scalability, maintainability,
and performance.
- Codebase modernization: Incrementally improve an existing React Native codebase by adopting modern patterns, best practices,
and platform capabilities, balancing long-term quality with short-term product needs.
- Performance & user experience: Measure, profile, and optimize mobile performance (startup time, rendering, memory, caching),
proactively preventing regressions and maintaining a high-quality user experience at scale.
- Tooling & developer experience: Improve mobile developer productivity by evolving tooling, build systems, debugging workflows,
and automations, ensuring fast feedback loops and reliable day-to-day development.
- Mobile platform expertise: Provide deep React Native expertise across the team by reviewing designs and implementations,
challenging assumptions, and driving better technical solutions in production.
- Release & quality processes: Improve and maintain mobile CI/CD pipelines, testing strategies, and release automation for both
iOS and Android.
- API & data integration: Collaborate closely with backend teams to design and integrate robust APIs and data flows, and
occasionally contribute targeted improvements to backend code to support mobile product needs.
- Collaboration & mentorship: Participate in technical discussions, review code, and help raise mobile engineering standards
across the team.
👀 WHO WE'RE LOOKING FOR
- Experience: 5+ years of mobile development experience, with clear expertise in React Native. You've operated at a senior or
staff level and you're ready to own meaningful parts of a production app end-to-end.
- Mobile expertise: Deep React Native expertise, with a strong understanding of mobile architectures and performance tradeoffs.
- Technical excellence: Strong understanding of mobile architectures and performance tradeoffs, with experience building
reliable, data-driven applications in production.
- Product-minded: Strong sensitivity to user experience, performance metrics, and real-world usage at scale.
- Problem solver: Comfortable working in complex, evolving codebases, with the patience and pragmatism to improve them
incrementally.
- Mobile tooling & delivery: Experience with mobile CI/CD, release processes, testing, and platform-specific constraints (iOS &
Android).
- Collaboration: Able to work effectively within a broader engineering team, and collaborate closely with Product Managers and
Product Designers to turn product ideas into high-quality mobile experiences.
- Languages: Fluent in English, both written and spoken. French is not required.
💎 OUR PERKS
(Some of the benefits listed below are available to full-time positions only)
At Joko, we believe that flexibility and trust are essential. Our work environment reflects this through:
- Flexible remote : If you live in Paris, you can choose to work from our office or from home with no constraints. If you live
elsewhere, we can provide access to a coworking space and a coworking budget.
- Work from anywhere : Want to spend a month in Italy while working? You can work from most countries in the world for up to 3
months per year.
On top of that, we offer plenty of perks:
- 💸 Top-market compensation
- 📈 Equity for everyone with the chance to own a piece of what you build
- 🤖 Half-day each week dedicated to leveling up with AI by exploring new tools, iterating hard, and sharpening your skills
- 🌴 Yearly offsite in amazing locations and budget for team-building events & monthly in-person gatherings
- 💪 Contribution to your ClassPass subscription
- 🍼 8-week leave paid 100% for the second parent
- …and much more, check the full list here!
🤝 OUR HIRING PROCESS
1. Intro call: Quick screening with the Hiring Manager or the Talent team.
2. Step 1 – Team interview (45 min): Conversation with two Joko team members (could include the Hiring Manager, people from the
team you’d join, or colleagues from other teams).
3. Step 2 – Role-specific assessments
- For non-engineering roles: A take-home case study followed by a 45-min interview. We assess both your output and how you
think in real time. The exercise will be relevant to your role (e.g. analysis, strategy, or process design).
- For engineering roles: A 90-min live technical interview on CoderPad covering code understanding, review, system design, and
product thinking (with AI serving as a collaboration tool).
4. Step 3 – Leadership interview (45 min): Conversation with a SteerCo member and a Founder.
5. References: Up to 3 calls with former colleagues or managers.
☕ You may also be invited for coffee with team members to get a feel for our culture.