Senior Front End Engineer - Ledger Enterprise Services
Paris, France
Full time
Hybrid
Compensation is not specified
Role
Frontend Engineer
Description
We are dedicated to democratizing and expanding accessibility to digital assets, and ensuring their security for all. Come be part of our impactful mission.
Established in 2014, Ledger serves as the global digital assets and Web3 platform. With our Ledger Nanos protecting over 20% of the world's crypto assets, we have a strong presence with headquarters in Paris and Vierzon. Our team of over 700 professionals across offices in the UK, US, Switzerland, and Singapore are actively working on an array of products and services. Our goal is to empower both individuals and businesses to securely purchase, store, exchange, develop, and manage crypto assets. The Ledger hardware wallets have already sold more than 5 million units in 180 countries.
Through our core values of Pragmatism, Audacity, Commitment, Trust, and Transparency, we differentiate ourselves. Experience our mission through our Origins video.
Ledger Vault ranks among the world's prominent solutions for safeguarding enterprise digital assets. With leading web3 & Crypto companies as our clients, we strive to normalize and extend the utility of crypto assets while bridging financial assets with Web3 tokens.
We are in pursuit of a skilled and enthusiastic Frontend Developer well-versed in React to enrich our development team. Within this role, you will closely collaborate with our UI/UX designers and backend developers to craft visually appealing and user-friendly interfaces for our web applications. If you bring JavaScript backend skills, there is an opportunity for you to contribute to backend development as well.
Responsibilities:
- Produce top-notch, reusable, and effective React components for our web applications following best practices and coding standards.
- Collaborate closely with UI/UX designers to transform design mockups and wireframes into responsive, interactive user interfaces.
- Enhance applications for optimal speed and scalability, ensuring cross-browser compatibility.
- Coordinate with backend developers to integrate frontend components with backend APIs, fostering seamless communication between the two layers.
- Engage in code reviews, give constructive feedback, and uphold code quality and consistency across the development team.
- Stay informed about the latest trends in frontend development, proposing innovative solutions to enhance our products.
Qualifications:
- Strong agility in React and its fundamental principles.
- Proficiency in web technologies like HTML5, CSS3, JavaScript, and TypeScript.
- Experience with state management libraries like Redux or MobX.
- Familiarity with frontend build tools and package managers (e.g., Vite and npm).
- Understanding of RESTful APIs and handling asynchronous requests.
- Sound comprehension of version control systems, preferably Git.
- Capacity to work collaboratively in a team setting and independently.
- Exceptional problem-solving abilities and keen attention to detail.
- Excellent English communication skills, both written and verbal.
- A portfolio featuring previous projects to showcase your expertise in React is advantageous.
Desirable Skills (Backend):
- Proficiency in backend technologies such as Node.js and Express.js.
- Knowledge of database systems, both relational (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB).
- Understanding of server-side development and API design.
- Capability to troubleshoot and optimize backend performance.
Benefits:
- Equity options to share in the company's success.
- Flexibility with a hybrid work policy.
- Social events and outings, including snacks and drinks.
- Comprehensive health insurance coverage for medical, dental, and vision care.
- Personal development, coaching, and fitness opportunities.
- Five weeks of paid leave annually, along with national holidays and rest & relaxation days.
- Access to high-performance office equipment and gadgets, including Apple products.
- Transportation reimbursement.
- Employee discount on all products.
Skills Required
Ledger
Website
www.ledger.comCompany size
Not specified
Location
United States
Description
Ledger is a leader in security and infrastructure solutions for cryptocurrencies and blockchain applications. We are constantly looking for innovative, talented people to join our team.
Iron Key Capital
Founder Fellow
Full time
Remote
Founder Fellow
📍 Remote | 3-Month Contract
🚀 About Iron Key & Iron Key Capital
Iron Key, backed by Iron Key Capital, is a venture community and investment firm focused on liquid and venture opportunities in crypto, Web3, and AI. Our mission is to invest in and support Pre-Seed and Seed-stage startups, equipping founders and investors with the tools and knowledge they need to succeed.
We operate a blockchain innovation lab and incubate startups in venture infrastructure, fintech, IP ownership, and application development. Iron Key Capital is backed by 200+ global LPs, deploying $1M+ annually into emerging opportunities.
📢 The Opportunity: Entrepreneur in Residence (EIR)
We are seeking a technical co-founder or EIR to help bring a newly incubated venture infrastructure product to market. This is a 3-month remote contract role, ideal for builders with Web3 and AI experience who want to launch a company with hands-on support.
Iron Key has developed proprietary AI tools for internal workflows and is exploring opportunities to externalize these as software-based consulting services or standalone software products. As an EIR, you’ll play a critical role in shaping, launching, and scaling these innovations.
🔹 Key Responsibilities
Lead Startup Development – Take an incubated idea from concept to market launch.
Drive Innovation – Bring your own venture idea or work on an existing Iron Key product.
Strategic Execution – Develop and implement growth strategies.
Hands-on AI & Web3 Work – Build and iterate on cutting-edge solutions in AI and blockchain.
Leverage Resources – Work alongside investors, advisors, and a global network to accelerate your startup.
🎯 What We’re Looking For
Proven entrepreneurial experience – Ideally, you’ve built a startup before (even if it failed).
Deep Web3 or AI expertise – Hands-on experience in AI, blockchain, or fintech is a must.
Strong problem-solving mindset – Ability to pivot, adapt, and execute in fast-changing environments.
Leadership & Vision – You’re a self-starter who can drive a business forward.
🔥 Why Join Iron Key?
Founder-Centric Program – Hands-on support to launch a company.
Unmatched Network – Access to top investors, mentors, and builders in crypto and AI.
Long-Term Value – Lifetime membership in the Iron Key community & alumni network.
Fundraising Support – Get exposure to global investors and funding opportunities.
📩 Apply Now
If you're ready to build and scale a new venture, apply here:
👉 https://airtable.com/appfCDlkorF5FL3VZ/paggWhwbIDwnmlzlK/form
📍 Remote | 3-Month Contract
🚀 About Iron Key & Iron Key Capital
Iron Key, backed by Iron Key Capital, is a venture community and investment firm focused on liquid and venture opportunities in crypto, Web3, and AI. Our mission is to invest in and support Pre-Seed and Seed-stage startups, equipping founders and investors with the tools and knowledge they need to succeed.
We operate a blockchain innovation lab and incubate startups in venture infrastructure, fintech, IP ownership, and application development. Iron Key Capital is backed by 200+ global LPs, deploying $1M+ annually into emerging opportunities.
📢 The Opportunity: Entrepreneur in Residence (EIR)
We are seeking a technical co-founder or EIR to help bring a newly incubated venture infrastructure product to market. This is a 3-month remote contract role, ideal for builders with Web3 and AI experience who want to launch a company with hands-on support.
Iron Key has developed proprietary AI tools for internal workflows and is exploring opportunities to externalize these as software-based consulting services or standalone software products. As an EIR, you’ll play a critical role in shaping, launching, and scaling these innovations.
🔹 Key Responsibilities
Lead Startup Development – Take an incubated idea from concept to market launch.
Drive Innovation – Bring your own venture idea or work on an existing Iron Key product.
Strategic Execution – Develop and implement growth strategies.
Hands-on AI & Web3 Work – Build and iterate on cutting-edge solutions in AI and blockchain.
Leverage Resources – Work alongside investors, advisors, and a global network to accelerate your startup.
🎯 What We’re Looking For
Proven entrepreneurial experience – Ideally, you’ve built a startup before (even if it failed).
Deep Web3 or AI expertise – Hands-on experience in AI, blockchain, or fintech is a must.
Strong problem-solving mindset – Ability to pivot, adapt, and execute in fast-changing environments.
Leadership & Vision – You’re a self-starter who can drive a business forward.
🔥 Why Join Iron Key?
Founder-Centric Program – Hands-on support to launch a company.
Unmatched Network – Access to top investors, mentors, and builders in crypto and AI.
Long-Term Value – Lifetime membership in the Iron Key community & alumni network.
Fundraising Support – Get exposure to global investors and funding opportunities.
📩 Apply Now
If you're ready to build and scale a new venture, apply here:
👉 https://airtable.com/appfCDlkorF5FL3VZ/paggWhwbIDwnmlzlK/form
Utopos
Job Opportunity: AI Engineer for UFO Image/video Authentication System 👽
Full time
Remote
🚀 Job Opportunity: AI Engineer for UFO Image Authentication System 👽
About Us:
We are building a cutting-edge AI-powered system to analyze and authenticate UFO images using machine learning, computer vision, and blockchain verification. Our goal is to separate fact from fiction and create a decentralized, transparent UFO sighting database. We are looking for a talented AI Engineer to help develop this groundbreaking system.
Role: AI Engineer (Computer Vision & Machine Learning)
Location: Remote
Contract Type: Freelance / Full-time
Responsibilities:
🔹 Develop and train deep learning models (CNNs, GANs) to detect manipulated, AI-generated, or authentic UFO images.
🔹 Build a real-time image analysis system capable of categorizing UFO sightings.
🔹 Implement object recognition & anomaly detection to classify spacecraft, weather phenomena, and aircraft.
🔹 Integrate blockchain & decentralized storage (IPFS) for verified image records.
🔹 Develop a user submission & verification portal that allows experts to weigh in on authenticity.
Requirements:
✅ Strong experience in TensorFlow, PyTorch, or OpenCV for image recognition.
✅ Experience with YOLO or other object detection models.
✅ Knowledge of deepfake detection and GAN analysis.
✅ Experience with blockchain for data integrity (Polygon, Ethereum, or Hyperledger).
✅ Ability to process large-scale datasets from online sources & government archives.
Bonus Skills:
⭐ Background in astronomy, aerospace, or remote sensing.
⭐ Experience working with NASA, FAA, MUFON, or other UFO databases.
⭐ Previous work in forensic image analysis & metadata authentication.
Why Join Us?
🚀 Be part of a pioneering AI research project to uncover real UFO sightings.
🔍 Work with leading experts in AI, aerospace, and blockchain.
💰 Competitive pay in crypto, UTOP.
📩 Apply Now! Send your portfolio, GitHub, and resume. Let’s reveal the truth together! 👽📡
About Us:
We are building a cutting-edge AI-powered system to analyze and authenticate UFO images using machine learning, computer vision, and blockchain verification. Our goal is to separate fact from fiction and create a decentralized, transparent UFO sighting database. We are looking for a talented AI Engineer to help develop this groundbreaking system.
Role: AI Engineer (Computer Vision & Machine Learning)
Location: Remote
Contract Type: Freelance / Full-time
Responsibilities:
🔹 Develop and train deep learning models (CNNs, GANs) to detect manipulated, AI-generated, or authentic UFO images.
🔹 Build a real-time image analysis system capable of categorizing UFO sightings.
🔹 Implement object recognition & anomaly detection to classify spacecraft, weather phenomena, and aircraft.
🔹 Integrate blockchain & decentralized storage (IPFS) for verified image records.
🔹 Develop a user submission & verification portal that allows experts to weigh in on authenticity.
Requirements:
✅ Strong experience in TensorFlow, PyTorch, or OpenCV for image recognition.
✅ Experience with YOLO or other object detection models.
✅ Knowledge of deepfake detection and GAN analysis.
✅ Experience with blockchain for data integrity (Polygon, Ethereum, or Hyperledger).
✅ Ability to process large-scale datasets from online sources & government archives.
Bonus Skills:
⭐ Background in astronomy, aerospace, or remote sensing.
⭐ Experience working with NASA, FAA, MUFON, or other UFO databases.
⭐ Previous work in forensic image analysis & metadata authentication.
Why Join Us?
🚀 Be part of a pioneering AI research project to uncover real UFO sightings.
🔍 Work with leading experts in AI, aerospace, and blockchain.
💰 Competitive pay in crypto, UTOP.
📩 Apply Now! Send your portfolio, GitHub, and resume. Let’s reveal the truth together! 👽📡
Payment in Crypto
Jack Morty
Junior Recruiter (Startup)
Part time
Remote
Job Title: Junior Recruiter (Startup)
📌 Responsibilities:
Sourcing candidates for various roles (IT, marketing, sales, etc.).
Conducting initial screenings and interviews.
Managing candidate databases and maintaining communication throughout the hiring process.
Posting job openings on different platforms and social media.
Collaborating with department heads to identify hiring needs.
📌 Requirements:
6+ months of experience in recruitment or a strong desire to learn.
Understanding of sourcing techniques and candidate search methods.
Proficiency in job boards, and social media recruitment.
Ability to conduct interviews and assess candidates effectively.
Strong communication and organizational skills.
English at an Intermediate+ level (preferred).
📌 What We Offer:
Flexible schedule (remote).
Opportunity to grow in a dynamic startup environment.
Training and mentorship from the team.
Competitive salary.
📩 Interested? Send us your resume! 🚀
📌 Responsibilities:
Sourcing candidates for various roles (IT, marketing, sales, etc.).
Conducting initial screenings and interviews.
Managing candidate databases and maintaining communication throughout the hiring process.
Posting job openings on different platforms and social media.
Collaborating with department heads to identify hiring needs.
📌 Requirements:
6+ months of experience in recruitment or a strong desire to learn.
Understanding of sourcing techniques and candidate search methods.
Proficiency in job boards, and social media recruitment.
Ability to conduct interviews and assess candidates effectively.
Strong communication and organizational skills.
English at an Intermediate+ level (preferred).
📌 What We Offer:
Flexible schedule (remote).
Opportunity to grow in a dynamic startup environment.
Training and mentorship from the team.
Competitive salary.
📩 Interested? Send us your resume! 🚀
Payment in Crypto
Gabenius
Full-time Hackintosh iOS development
Full time
Hybrid
We are currently seeking a skilled professional to join our team as a Full-time Hackintosh iOS Developer. In this role, you will be responsible for developing iOS applications for our Hackintosh platform. The ideal candidate will have a strong background in Web, Mobile, and Software Development, Engineering & Architecture, Customer Service, and Accounting and Consulting Specialist.
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.
Payment in Crypto
Gate.io
Big Data System Architect
Full time
Remote
我们的愿景
作为全球⼗⼤数字资产交易所之⼀（仍在上升🚀），我们在交易、安全 和区块链产品创新⽅⾯提供⼀流的服务体验。
我们的⽬标是让所有⼈都能参与到加密市场的建设中来，使得最前沿的、最有潜⼒的加密货币项⽬得以安全上线并交易。你有兴趣加⼊这样⼀⽀去中⼼化团队吗？
团队介绍
产品研发团队自成立以来一直秉承用户至上和安全至上的理念，产品不断更新迭代，技术稳中求新。 加入产研团队，你将和一群业内一流的技术伙伴一起，打磨高性能、高可靠、创新不断的全球Top5的平台，在这里，你的发展空间无限，未来可期。
我们正在全球招募更多优秀的志同道合的朋友加入我们，我们理想的候选人：积极主动，逻辑能力较好，有着良好的团队合作和沟通协调能力；具有一定专研精神，敢于挑战自我，勇于解决各种未知问题。
岗位职责
负责公司级数据仓库体系的建设，推动企业级数据模型建设及数据治理体系的落地；
负责公司数据架构体系的优化升级，推动数据研发流程的改进，提升数据研发质量与效能；
主导大数据平台技术架构规范、标准的制定，为应用设计、开发及部署提供架构指导原则；
与数据分析师合作推动数据为产品运营赋能，通过技术创新让数据为业务发展带来价值；
负责数据团队的建设与管理工作，培养和组建技术梯队，优化资源利用。
任职资格
计算机相关专业本科及以上学历，5年以上数据研发领域经验，2年以上互联网团队管理经验；
精通数据仓库相关理论，有企业级的数据仓库建设经验，有数据治理相关成功经验；有AWS EMR平台经验者优先；
熟悉Hadoop生态体系，包括但不限于Hadoop、Hive、Spark、Flink、Kafka等，并能结合业务场景进行架构设计；
具有较强的编程能力，熟练使用java和python开发；
良好的业务理解力，能从业务视角看问题，从技术角度解决业务问题；
有自驱力，结果导向。
Gate价值观
我们崇尚价值⾄上的原则，您的知识、愿景和⾃主性将在这⾥充分发挥， 我们专注于使⽤最好的产品和服务来赢得全球客户的赞誉，并将去中⼼化的理念带到世界各地。
我们的价值观包含正直、洞察、创新、求知与合作，在Gate.io ，我们致⼒于打造独特的Gate风格，并寻找与Gate.io价值观相契合的你。
我们的公司
Gate.io成⽴于2013年，是领先的加密货币交易所之⼀，在全球范围内提供 与多种领先数字资产交易相关的服务。Gate.io拥有超千万的注册⽤户，被认为是全球最安全和最可靠的加密货币平台之⼀。 Gate.io已经过区块链透明度验证，根据流动性和交易量 ，⼀直稳居全球⼗⼤加密货币交易所⾏列（CoinGecko）。
作为全球⼗⼤数字资产交易所之⼀（仍在上升🚀），我们在交易、安全 和区块链产品创新⽅⾯提供⼀流的服务体验。
我们的⽬标是让所有⼈都能参与到加密市场的建设中来，使得最前沿的、最有潜⼒的加密货币项⽬得以安全上线并交易。你有兴趣加⼊这样⼀⽀去中⼼化团队吗？
团队介绍
产品研发团队自成立以来一直秉承用户至上和安全至上的理念，产品不断更新迭代，技术稳中求新。 加入产研团队，你将和一群业内一流的技术伙伴一起，打磨高性能、高可靠、创新不断的全球Top5的平台，在这里，你的发展空间无限，未来可期。
我们正在全球招募更多优秀的志同道合的朋友加入我们，我们理想的候选人：积极主动，逻辑能力较好，有着良好的团队合作和沟通协调能力；具有一定专研精神，敢于挑战自我，勇于解决各种未知问题。
岗位职责
负责公司级数据仓库体系的建设，推动企业级数据模型建设及数据治理体系的落地；
负责公司数据架构体系的优化升级，推动数据研发流程的改进，提升数据研发质量与效能；
主导大数据平台技术架构规范、标准的制定，为应用设计、开发及部署提供架构指导原则；
与数据分析师合作推动数据为产品运营赋能，通过技术创新让数据为业务发展带来价值；
负责数据团队的建设与管理工作，培养和组建技术梯队，优化资源利用。
任职资格
计算机相关专业本科及以上学历，5年以上数据研发领域经验，2年以上互联网团队管理经验；
精通数据仓库相关理论，有企业级的数据仓库建设经验，有数据治理相关成功经验；有AWS EMR平台经验者优先；
熟悉Hadoop生态体系，包括但不限于Hadoop、Hive、Spark、Flink、Kafka等，并能结合业务场景进行架构设计；
具有较强的编程能力，熟练使用java和python开发；
良好的业务理解力，能从业务视角看问题，从技术角度解决业务问题；
有自驱力，结果导向。
Gate价值观
我们崇尚价值⾄上的原则，您的知识、愿景和⾃主性将在这⾥充分发挥， 我们专注于使⽤最好的产品和服务来赢得全球客户的赞誉，并将去中⼼化的理念带到世界各地。
我们的价值观包含正直、洞察、创新、求知与合作，在Gate.io ，我们致⼒于打造独特的Gate风格，并寻找与Gate.io价值观相契合的你。
我们的公司
Gate.io成⽴于2013年，是领先的加密货币交易所之⼀，在全球范围内提供 与多种领先数字资产交易相关的服务。Gate.io拥有超千万的注册⽤户，被认为是全球最安全和最可靠的加密货币平台之⼀。 Gate.io已经过区块链透明度验证，根据流动性和交易量 ，⼀直稳居全球⼗⼤加密货币交易所⾏列（CoinGecko）。