AI Software Engineer (senior/staff level)

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 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.

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 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 TEAMS As a Software Engineer, you’ll have the opportunity to apply your skills across a wide range of cutting-edge technical challenges and impactful projects. Depending on your expertise and interests, you could contribute to one of the following key areas: 1. Tech: Collaborate with the Product team to innovate on Joko’s user-facing products and shape the future of the online shopping experience, taking full ownership from conception to deployment. You will tackle complex engineering challenges such as developing AI-powered shopping assistants or crafting scalable algorithms that are capable of extracting, structuring, and leveraging massive quantities of data from all e-commerce sites worldwide. 2. Operations: Support all teams at Joko by designing and implementing software solutions that enhance efficiency at scale. You will work on projects like building the customer support stack to solve our users’ problems, improving fraud detection mechanisms, or creating AI assistants to optimize team operations. 🎯 WHAT YOU WILL DO At Joko, we believe in ownership and versatility. You will take complete ownership of your projects, steering them from the initial blueprint to their deployment in production, ensuring excellence and innovation at every turn. We aim to assemble versatile teams of engineers, not confined to narrow specialties (e.g., mobile development, ML engineering, infrastructure, etc.). We seek individuals with broad technical skills, capable of applying their knowledge to tackle complex, multi-domain engineering challenges. As a Software Engineer, your responsibilities will include: * Software design & development: Translate product visions or operational needs into robust software architectures, implementing them across our stack to ensure an exceptional user experience. * Technical exploration & problem-solving: Dive into challenging technical problems, often involving new and undefined areas, using innovative approaches to develop practical solutions. * Deployment & impact monitoring: Take projects from development to deployment, collaborating with Product and Data teams to monitor their impact. * Technical leadership: Set technical direction, own architecture decisions on complex systems, mentor engineers across the team, and drive the hardest technical discussions to a resolution. * Strategic collaboration: Work closely with the Product and Operations teams to align technical projects with company goals. * Process & tool enhancement: Continuously evaluate and improve team processes and tools to ensure maximum efficiency and effectiveness. 👀 WHO WE'RE LOOKING FOR We’re looking for talented engineers who combine technical excellence with curiosity, ownership, and a product-driven mindset. You might fit perfectly if you recognise yourself in the following: * Experience: You have 5+ years of experience as a software engineer, including time spent owning complex, ambitious projects end-to-end. You've operated at a senior or staff level, taking responsibility for technical direction and not just execution. * Track record: You’ve demonstrated high potential through one or more of the following: * Strong experience or growth in a top-tier company or project; * A strong entrepreneurial or open-source background; * Speaking at conferences, organising meetups, or contributing to tech communities. * Builder’s mindset: You think in terms of impact and see technology as a means to create real value for users. * Full-stack spirit: You’re not limited by a specific layer or language. You care about solving problems end-to-end. * Fast learner: You’re quick to pick up new technologies, frameworks, or practices, and you’re comfortable in fast-changing environments. * Problem solver: You have strong analytical skills and enjoy tackling complex challenges with a creative yet pragmatic approach. * Communication: You can explain complex ideas simply, structure your thoughts clearly, and listen actively. * Team player: You’re humble, open to feedback, and eager to help others grow as much as you grow yourself. * Drive & ownership: You take initiative, hold yourself accountable, and aim for excellence in everything you do. * Languages: You're 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.

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 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’re entering a new stage of scale: over half a million active daily users, and zero-downtime expectations. As our Platform Engineer, you’ll shape and lead our platform efforts. You’ll be the first senior engineer focused on these topics, building on work currently spread across the team and turning it into a clear, reliable, high-leverage platform that helps everyone ship faster and safer. * Infrastructure & reliability: Own our production infrastructure end-to-end: resilience, capacity, and cost. You'll make our systems more robust as we grow, simplify where it makes sense, and turn infrastructure efficiency into a real business lever — not just an engineering concern. * Observability & incident response: Build the visibility layer that lets us catch problems before users do. You'll centralize logs and alerts across our tools, define what "healthy" looks like, and design an on-call experience that's sustainable — clear signals, fast response, no noise. * Security & access control: Raise the security bar in a way that scales with the team. From access management and secrets handling to compliance work and release hardening — you'll make security a natural part of how we ship, not a checkpoint at the end. * Developer experience & release quality: Treat engineering workflows as a product. You'll improve how we build, test, and release — making the right way the easy way, and giving teams the confidence that what they ship is solid before it reaches users. * AI-powered internal tooling: Help shape how we use AI internally: automation, agents, and tooling that multiply the execution capacity of every team. You'll contribute to a real shift in how we work — not by replacing engineers, but by removing the friction that slows them down. * Technical leadership: Define the platform roadmap, align stakeholders, and lead cross-team initiatives end-to-end. Bring structure and mentorship so platform practices become shared — not heroic individual efforts. 👀 WHO WE'RE LOOKING FOR * Experience: 5+ years of software engineering experience, with significant time spent on platform, infrastructure, or reliability at scale. You've operated at a senior or staff level and you're ready to be the first dedicated owner of these topics. * Production reliability & scale: Strong track record operating and evolving production systems (observability, incident response, scalability, reliability patterns) in environments with real traffic and high expectations. * DevOps & automation mindset: You consistently improve how engineers ship—CI/CD, releases, automation, tooling—and you care about fast feedback loops and day-to-day developer productivity. * Strong software engineering foundations: You are a strong engineer first — you write clean, testable, maintainable code and bring that rigor to platform work. You're comfortable rolling up your sleeves and contributing directly to the codebase when needed, and you see that as a natural part of the job. * Cost/performance tradeoffs: You're comfortable making pragmatic architectural decisions that balance reliability, latency, and cloud costs, with a clear focus on impact. * Security fundamentals: You have solid infrastructure security basics (permissions/IAM, secrets, least privilege, hardening). You don't need to be a full-time security specialist, but you know how to raise the baseline. * Cloud & modern infrastructure: Experience with AWS (we run a server-less setup) or equivalent; familiarity with IaC and modern deployment patterns is a strong plus. * 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. * Collaboration & influence: You communicate clearly, raise the bar through reviews and mentorship, and partner well with engineers and product stakeholders. * 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.