Growth Software Engineer
Joko · Paris, Île-de-France, France
- Hybrid
- Full-time
- $120,000 / year
- Paris, Île-de-France, France
Job highlights
- Drive user and business growth through code.
- Iterate on acquisition, retention, and engagement.
- Design and ship growth experiments across user journey.
- Build and run A/B tests at scale.
- Collaborate with cross-functional teams.
About the role
About Joko
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 90 talents across Paris, Barcelona, and New York (and beyond). More than 5 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 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!
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
- As a Growth Software Engineer, you will be the driving force behind scaling Joko's user and business growth through code.
- You will work hand-in-hand with the Product team, iterating fast on high-impact levers — acquisition, retention, engagement — across France and our international expansion, starting with the US.
- Operate at the intersection of product and engineering to move the business forward at speed, within a dedicated cross-functional task force bringing together key members from Marketing, Data, Business, and Product.
- Design, build, and ship experiments across the full user journey — from onboarding to retention — to drive significant impact on key growth metrics. Quantify impact, iterate on what works, and kill what doesn't, fast.
- Work on ambitious features like gamification, personalization, and cross-feature engagement to deepen user connection with Joko's increasingly complex product surface.
- Build and run A/B tests at scale, instrument features for measurement, and partner closely with the Data team to make every decision evidence-based.
- Move quickly, put prototypes in front of users, gather feedback, and iterate, thriving on short cycles and learning loops.
- Be the natural bridge between business, product, and technical stakeholders, translating business challenges into engineering solutions and surfacing technical constraints that shape product decisions.
- Ensure alignment across teams so that growth efforts move fast without friction.
- Depending on priorities, play a role in Joko's expansion into new markets, adapting the product to local contexts and helping our infrastructure scale across geographies.
Who We're Looking For
- Strong software engineering experience in a fast-paced environment with real production constraints, ideally in a B2C product used by hundreds of thousands of users.
- Shipped features end-to-end and taken full ownership of their outcomes.
- A builder's mindset: love building things that move metrics and thinking about the business impact of what you ship.
- Full-stack spirit: comfortable across the stack, adapting to whatever layer the problem lives in — front, back, infra — without hesitation.
- Deeply data-driven: instrument your code, design experiments, and use data to validate or kill your hypotheses.
- Fast learner: up to speed quickly on new domains, new markets, and new constraints, energized by unfamiliar territory.
- Problem solver: bring creative, practical solutions to complex, ambiguous problems, figuring out what matters and going to build it.
- Drive & ownership: hold yourself accountable for outcomes, not just outputs, caring about whether your work actually moves the needle.
- Team player: work closely with Product, Design, and Data, communicating clearly, sharing context generously, and making the people around you faster.
- Fluent in English (written and spoken).
- Entrepreneurial mindset: like challenges, welcome feedback, and love constantly learning and getting better.
Our perks
At Joko, we believe that flexibility and trust are essential. Our work environment reflects this through:
- Flexible remote: If you live in Paris, choose to work from our office or home with no constraints. If you live elsewhere, access to a coworking space and budget provided.
- Work from anywhere: 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!
Our hiring process
- Intro call: Screening with Hiring Manager or Talent team.
- Step 1 – Team interview (45 min): Conversation with two Joko team members.
- Step 2 – Role-specific assessments: For tech roles, live technical interviews including coding and system design.
- Step 3 – Leadership interview (45 min): Conversation with a SteerCo member and a Founder.
- References: Up to 3 calls with former colleagues or managers.
- Optional: Coffee with team members to feel the culture.
Key skills/competency
- Growth Software Engineering
- Product & Engineering Collaboration
- Experimentation & A/B Testing
- Full-Stack Development
- Data-Driven Development
- User Engagement
- Personalization
- International Expansion
- Cross-functional Collaboration
- Problem Solving
Skills & topics
- Growth Software Engineer
- Software Engineer
- Full-Stack Developer
- B2C
- SaaS
- E-commerce
- Tech
- Startup
- AI
- Paris
- New York
- Barcelona
How to get hired
- Tailor your resume: Highlight your experience in growth, A/B testing, and full-stack development, aligning with Joko's mission.
- Showcase impact: Quantify your achievements in previous roles, demonstrating how you moved metrics and drove business impact.
- Demonstrate collaboration: Emphasize your ability to work effectively with Product, Data, and Marketing teams in your application.
- Prepare for technical interviews: Be ready for coding and system design challenges, focusing on growth-related problem-solving.
- Understand Joko's mission: Research Joko's B Corp status and its focus on smarter shopping and AI.
Technical preparation
Practice coding challenges focused on algorithms.,Prepare for system design questions on scalability.,Familiarize yourself with A/B testing frameworks.,Review JavaScript and backend technologies.
Behavioral questions
Describe a time you drove growth metrics.,How do you handle ambiguity in projects?,Share an example of cross-functional collaboration.,How do you prioritize features for impact?
Frequently asked questions
- What is Joko's mission as a company?
- Joko's mission is to revolutionize shopping by empowering consumers to shop smarter, find what they need, make informed decisions, and save money. They are a tech company and a certified B Corp.
- What are the key responsibilities of a Growth Software Engineer at Joko?
- As a Growth Software Engineer at Joko, you will drive user and business growth by designing, building, and shipping experiments, working on features like gamification and personalization, running A/B tests, and collaborating with cross-functional teams.
- What kind of technical skills are most important for this role?
- Key technical skills include strong software engineering experience, a full-stack development spirit (front, back, infra), proficiency in A/B testing and data-driven development, and the ability to instrument code for measurement.
- What is Joko's approach to remote work and flexibility?
- Joko offers flexible remote work. If you live in Paris, you can choose to work from the office or home. If you live elsewhere, they provide access to a coworking space and budget. You can also work from most countries for up to 3 months per year.
- Can you describe Joko's hiring process for technical roles?
- The hiring process typically includes an intro call, a team interview, role-specific live technical interviews (coding and system design), and a leadership interview with a SteerCo member or Founder. References are also checked.
- What kind of impact can a Growth Software Engineer have at Joko?
- A Growth Software Engineer can have a significant impact by directly driving user and business growth through iterative experimentation, developing engaging features, and contributing to international expansion, thereby shaping the future of shopping.
- What makes Joko a unique company to work for?
- Joko is unique due to its mission to make shopping smarter, its B Corp certification, its fast-paced, international growth environment, and its focus on employee perks like flexible remote work, equity, and AI skill development.
- How does Joko ensure decisions are evidence-based?
- Joko ensures decisions are evidence-based by having engineers instrument features for measurement, partner closely with the Data team, build and run A/B tests at scale, and use data to validate or kill hypotheses.