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France

Paris

<b>We're making the world of digital assets accessible and secure for everyone. </b><b>Join the mission. </b>Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 15% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in the UK, US, Switzerland and Singapore, Ledger has a team of more than 700 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 5 millions units already sold in 180 countries. At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Have a look at our Origins video <a href="https://www.youtube.com/watch?v=Etqa_ECbz3M" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>. Ledger has developed Ledger Live, an application to manage all your blockchain-backed assets. It's built in [<a href="http://React.js" rel="noopener noreferrer nofollow ugc" target="_blank">React.js</a>] (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins & NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Live allows you to manage. This application is developed by several teams, each working on specific parts of the software. The Live Hub squad is responsible for building and maintaining the portfolio and account management UI flows. Duration: 6 months Start date: January/ March 2024<h3>The mission </h3><ul><ul><li>Contribute to the desktop and mobile development of Ledger Live Applications, </li><li>Collaborate with our devs, QA, designers and product within Ledger Live teams, </li><li>Take initiatives and offer technical solutions, </li><li>Participate in code reviews, </li><li>Work on Feature Flagging, </li><li>Work 100% on Open Source projects all gathered in our monorepo: [<a href="https://github.com/LedgerHQ/ledger-live" rel="noopener noreferrer nofollow ugc" target="_blank">ledger-live</a>], </li><li>Share knowledge within Ledger and beyond.</li></ul></ul><h3>What we're looking for </h3><ul><ul><li>A bachelor/master degree in Computer Science, </li><li>A curious mind with a positive attitude to join a highly collaborative team, </li><li>Fluency in JavaScript (or TypeScript), </li><li>Experience in [<a href="http://React.js" rel="noopener noreferrer nofollow ugc" target="_blank">React.js</a>] development, </li><li>A good level of English</li></ul></ul><h3>Nice to have</h3><ul><ul><li>Experience with React Native and/or Electron, </li><li>Experience in Web3 topics and technical stack, </li><li>Experience building dashboards</li></ul></ul><h3>What's in it for you</h3><ul><ul><li><b>Flexibility</b>: A hybrid work policy</li><li><b>Social</b>: Frequent social events, snacks and drinks</li><li><b>High tech</b>: Access to high performance office equipment and gadgets, including Apple products</li><li><b>Transport</b>: Ledger reimburses 75% of your preferred means of transportation</li><li><b>Food:</b> We offer lunch vouchers with Swile</li><li><b>Vacation</b>: 1 day off for every full month worked</li></ul></ul><i>We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age</i>#LI-hybrid #LI-RDH

Front End Developer Trainee - Live Hub

<b>We're making the world of digital assets accessible and secure for everyone. Join the mission. </b>Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 900 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 6 millions units already sold in 200 countries. At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do <a href="https://www.youtube.com/watch?v=Pzpxkb0_iFQ" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>. Ledger has developed Ledger Live, an application to manage all your blockchain-backed assets. It’s built in React.js (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins &amp; NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Live allows you to manage.This application is developed by several teams, each working on specific parts of the software. To sustain the company's growth, we are looking for a Senior Front-End Engineer to join the Wallet Experience business unit. Within the Live Hub squad, you’ll be responsible for building and maintaining the portfolio and account management UI flows. <h3>Your missions</h3><ul><ul><li>Own from a technical standpoint the desktop and mobile development of Ledger Live Applications,</li><li>Collaborate with our devs, QA, designers and product within Ledger Live teams,</li><li>Take initiatives and offer technical solutions,</li><li>Develop features using best practices from unit to e2e testing,</li><li>Participate in code reviews,</li><li>Be responsible for the quality of Ledger’s UI/UX framework,</li><li>Mentor and promote tech growth within the team,</li><li>Work 100% on Open Source projects all gathered in our monorepo: <a href="https://github.com/LedgerHQ/ledger-live" rel="noopener noreferrer nofollow ugc" target="_blank">ledger-live</a>,</li><li>Share knowledge within Ledger and beyond.</li></ul></ul><h3>What we’re looking for</h3><ul><ul><li>Engineer profile with at least 7 years of experience in software development,</li><li>A curious mind with a positive attitude to join a highly collaborative team,</li><li>Proficient with JavaScript and TypeScript,</li><li>Strong experience in React.js development, tools and libraries,</li><li>Good knowledge of UI/UX practices in software development.</li></ul></ul><h3>Nice to have</h3><ul><ul><li>Experience with React Native and/or Electron,</li><li>Experience in Web3 topics and technical stack, </li><li>Experience in maintaining a library of shared components,</li><li>Experience building Chrome Extensions.</li></ul></ul><h3>What’s in it for you?</h3><ul><ul><li><b>Equity</b>: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow.</li><li> <b>Flexibility</b>: A hybrid work policy.</li><li><b>Social</b>: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks</li><li><b>Medical</b>: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage. </li><li><b>Well-being</b>: Personal development, coaching &amp; fitness with our dedicated partners.</li><li><b>Vacation</b>: Five weeks of paid leave per year, in addition to national holidays and rest &amp; relaxation (RTT) days.</li><li><b>High tech:</b> Access to high performance office equipment and gadgets, including Apple products. </li><li><b>Transport</b>: Ledger reimburses part of your preferred means of transportation. </li><li><b>Discounts</b>: Employee discount on all our products.</li></ul></ul>We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age.<i>#LI-Hybrid  #LI-AM1</i>

Senior Front-End Engineer - Live Hub

<b>We're making the world of digital assets accessible and secure for everyone. Join the mission. </b>Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 900 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 6 millions units already sold in 200 countries. At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do <a href="https://www.youtube.com/watch?v=Pzpxkb0_iFQ" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>.Ledger has developed Ledger Live, an application to manage all your blockchain-backed assets. It’s built in React.js (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins &amp; NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Live allows you to manage.The application is developed by several teams, each working on specific parts of the software. To sustain the company's growth, we are looking for a new Team Lead.  Reporting directly to the Wallet Experience Engineering Manager, you will be responsible for the Live Core team which is accountable for Ledger Live transversal tooling, common libraries and reusable components that are consumed by all developers contributing to Ledger Live Applications.This includes CI workflows (Github Actions), Developer Experience tooling, supervision of the libraries of UI components &amp; associated storybooks as well as analytics and feature flag client libraries.<h3>Your mission</h3><ul><ul><li><b>Management</b></li><li>Lead your team and meet regularly with your direct reports to provide frequent feedback on their work</li><li>Drive recruitments, performance assessments, trainings and career development for your team</li><li>Help individuals set goals and improve their practices, to ensure employee growth and meet retention goals</li><li><b>Tech</b></li><li>Drive projects from end-to-end, implementing best-in-class engineering practices</li><li>Participate in the sprint delivery, monitor Tech' metrics, and be accountable for the quality of deliverables</li><li>Consistently come up with innovative solutions and encourage innovative thinking from others</li><li><b>Delivery</b></li><li>Collaborate closely with Delivery Managers, Product Owners and Designers to assess feasibility, provide technical recommendations, and help estimating and planning</li><li>Delegate effectively, ensuring tasks are completed as specified without micromanaging</li><li>Communicate clearly on expectations and ensure practices are followed to meet Ledger’s quality bar</li><li><b>Leadership &amp; Communication</b></li><li>Embrace a positive “can do” attitude, and be a model for others</li><li>Be proactive in your communication and be a well identified link with other teams</li><li>Track progresses / risks / issues and communicate them to the appropriate stakeholders</li></ul></ul><h3>What we’re looking for</h3><ul><ul><li>1+ years of experience managing engineering teamsStrong experience in React.js development, tools and libraries</li><li>A fist experience dealing on CI and tooling topicsTeam player mindset, with excellent interpersonal skills and ability to work cross-functionally</li><li>Enthusiasm for hiring new talents, and developing and growing people</li></ul></ul><h3>What’s in it for you ?</h3><ul><ul><li><b>Equity</b>: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow. </li><li><b>Flexibility</b>: A hybrid work policy.</li><li><b>Social</b>: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks</li><li><b>Medical</b>: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage. </li><li><b>Well-being</b>: Personal development, coaching &amp; fitness with our dedicated partners.</li><li><b>Vacation</b>: Five weeks of paid leave per year, in addition to national holidays and rest &amp; relaxation (RTT) days.</li><li><b>High tech</b>: Access to high performance office equipment and gadgets, including Apple products. </li><li><b>Transport</b>: Ledger reimburses part of your preferred means of transportation. </li><li><b>Discounts</b>: Employee discount on all our products.</li></ul></ul><i>We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age.</i><i>#LI-Hybrid #LI-AM1</i>

Team lead - Live Core Tech

<b>We're making the world of digital assets accessible and secure for everyone. </b>Join the mission. Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 900 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 6 millions units already sold in 200 countries. At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do <a href="https://www.youtube.com/watch?v=Pzpxkb0_iFQ" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>.Ledger has developed Ledger Live, an application to manage all your blockchain-backed assets. It’s built in React.js (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins &amp; NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Live allows you to manage. The application is developed by several teams, each working on specific parts of the software. To sustain the company's growth, we are looking for a new Front-End Engineer.  Reporting to the Live Core Team Lead, you will work on Ledger Live transversal tooling, common libraries and reusable components that are consumed by all developers contributing to Ledger Live Applications.This includes CI workflows (Github Actions), Developer Experience tooling, supervision of the libraries of UI components &amp; associated storybooks as well as analytics and feature flag client libraries.<h3>Your missions</h3><ul><ul><li>Own from a technical standpoint the desktop and mobile development of Ledger Live Applications,</li><li>Collaborate with our devs, QA, designers and product within Ledger Live teams,</li><li>Take initiatives and offer technical solutions,Design, implement and maintain tools, processes and practices that improve Developer Experience,</li><li>Maintain and improve core libraries, tooling and CI flows</li><li>Participate in code reviews,</li><li>Be responsible for the quality of Ledger’s UI/UX framework,</li><li>Mentor and promote tech growth within the team,</li><li>Work 100% on Open Source projects all gathered in our monorepo: <a href="https://github.com/LedgerHQ/ledger-live" rel="noopener noreferrer nofollow ugc" target="_blank">ledger-live</a>,</li><li>Share knowledge within Ledger and beyond.</li></ul></ul><h3>What we’re looking for</h3><ul><ul><li>Engineer profile with at least 3 years of experience in software development,</li><li>A curious mind with a positive attitude to join a highly collaborative team,</li><li>Proficient with JavaScript and TypeScript,</li><li>Strong experience in React.js development, tools and libraries,</li><li>Good knowledge of UI/UX practices in software development, </li><li>First experience on tooling, testing or CI topics.</li></ul></ul><h3>Nice to have</h3><ul><ul><li>Experience with React Native and/or Electron,</li><li>Experience in Web3 topics and technical stack, </li><li>Experience in maintaining a library of shared components,</li><li>Experience building Chrome Extensions.</li></ul></ul><h3>What’s in it for you?</h3><ul><ul><li><b>Equity:</b> Employees are the foundation of our success, and we award stock options so you can share in that success as we grow. Flexibility: A hybrid work policy.</li><li><b>Social: </b>Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks</li><li><b>Medical</b>: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage. Well-being: Personal development, coaching &amp; fitness with our dedicated partners.</li><li><b>Vacation: </b>Five weeks of paid leave per year, in addition to national holidays and rest &amp; relaxation (RTT) days.</li><li><b>High tech:</b> Access to high performance office equipment and gadgets, including Apple products. </li><li><b>Transport:</b> Ledger reimburses part of your preferred means of transportation. </li><li><b>Discounts:</b> Employee discount on all our products.</li></ul></ul>We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age.<i>#LI-Hybrid #LI-AM1</i>

Front-End Engineer - Live Core Tech

<b>We're making the world of digital assets accessible and secure for everyone. Join the mission. </b>Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 900 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 6 millions units already sold in 200 countries. At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do <a href="https://www.youtube.com/watch?v=Pzpxkb0_iFQ" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>. <a href="https://www.ledger.com/ledger-live" rel="noopener noreferrer nofollow ugc" target="_blank">Ledger Live</a> is a Desktop and Mobile application that helps you manage all your blockchain-backed assets. It’s built in ReactJS (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins &amp; NFTs) as well as providing multiple financial services (Buy, Swap, Sell).To sustain the company's growth, Ledger is looking for new talents. You will start by joining Ledger’s  payments and transactions business unit (PTX) to improve the existing transactional services, and keep delivering new ones. The team focuses on creating easy, secure and clever ways for consumers to buy, exchange, sell, send, receive and grow their crypto. <h3>Your mission</h3><ul><ul><li>Own from a technical standpoint the desktop and mobile development of PTX services</li><li>Collaborate with our devs, QA, designers and product within PTX teams</li><li>Proactively engage with teams from partner companies to make new integrations even smoother</li><li>Participate in code reviews and promote code quality and best practices</li><li>Be responsible for the quality of PTX services</li><li>Mentor and promote tech growth within the front-end team</li><li>Innovate and participate in building crypto services with new ideas around quality software, UI/UX, security and blockchain technology</li><li>Share knowledge within Ledger and beyond</li></ul></ul><h3>Requirements</h3><ul><ul><li>5+ years of experience in front-end software development</li><li>You have a strong background in React and/or React Native development and UI/UX, preferably using TypeScript</li><li>Nodejs experience is a plus</li><li>You don’t qualify on all previous points, but you are confident your experience in similar technologies is completely relevant</li><li>You have experience working with complex projects focusing on performance and scalability of the front-end stack but you love to keep it simple! </li><li>Overall, you are a great team player who loves learning and sharing best practices with your peers</li></ul></ul><h3>What's in it for you</h3><ul><ul><li><b>Equity</b>: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow</li><li><b>Flexibility</b>: A hybrid work policy</li><li><b>Social</b>: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks</li><li><b>Medical</b>: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage</li><li><b>Well-being</b>: Personal development, coaching &amp; fitness with our dedicated partners</li><li><b>Vacation</b>: Five weeks of paid leave per year, in addition to national holidays and rest &amp; relaxation (RTT) days</li><li><b>High tech</b>: Access to high performance office equipment and gadgets, including Apple products</li><li><b>Transport</b>: Ledger reimburses part of your preferred means of transportation</li><li><b>Discounts</b>: Employee discount on all our products</li></ul></ul><i>We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age.</i>#LI-RDH #LI-Hybrid

Senior Front-End Software Engineer

3 link clicks.

DFNS

<p>Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems. We’re hiring a Lead Mobile Engineer to build the mobile experience of our platform. You’ll design and ship iOS and Android applications, improve our cross-platform architecture, and build interfaces that are fast, intuitive, and reliable. We’re looking for strong expertise in React Native and a sharp eye for product and UX details. You have experience shipping production mobile apps in fintech, blockchain, or other high-reliability environments. You’ll work closely with product, security, and backend teams to turn complex requirements into simple mobile workflows for both administrators and end users. This role includes owning projects end to end, contributing to mobile architecture decisions, and ensuring the mobile stack remains secure, reliable, and easy to build on.</p>

Lead Mobile Engineer

Paris, New York

Web3 React Native jobs in Paris, FranceEarn 💰 $120k-$220k salary with theseDFNS and other crypto companies

Browse 1+ Web3 React Native jobs in Paris, France paying $120k-$220k/year at DFNS. Apply now! Updated September 2026

Web3 React Native Jobs in Paris, France

Web3 React Native Jobs in Paris, France - $120k-$220k/year

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Job Title	Company Name	Salary	Location	Tags
Lead Mobile Engineer	DFNS	120k-220k/year	📍 Paris, France	MobileReact NativeIOSAndroid
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Lead Mobile Engineer

DFNS

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