Staff Front End Engineer - Ledger Enterprise Services (f/m)
Paris, France
Full time
Hybrid
Compensation is not specified
Role
Frontend Engineer
Description
Dedicated to providing accessibility and security for digital assets worldwide, our company invites you to partake in our noble mission.
Established in 2014, our organization, a global leader in digital assets and Web3, is responsible for safeguarding over 20% of the globe's crypto assets through our advanced Ledger Nanos. With our headquarters based in Paris and Vierzon, and additional offices in the UK, US, Switzerland, and Singapore, we are supported by a team of 700 experts focused on developing a range of products and services. Our aim is to empower individuals and businesses to securely purchase, store, exchange, expand, and manage crypto assets. This includes our acclaimed Ledger hardware wallets which have been sold in exceeding 180 countries, totaling over 5 million units.
Our operational values — Pragmatism, Audacity, Commitment, Trust, and Transparency — define our essence and set us apart. You can gain insights into our inspirational journey by viewing our Origins video.
Recognized as a premier solution for securing corporate digital assets globally, the Ledger Vault proudly serves some of the most influential web3 & Crypto companies. Our aspiration is to democratize crypto asset use and combine financial assets with Web3 tokens.
We are in search of a proficient Senior Frontend Developer with specialized skills in React to enrich our development team. In this position, you will collaborate closely with our UI/UX designers and backend developers to craft visually appealing and user-friendly interfaces for our web applications. Additionally, there is an opportunity to contribute to backend development processes if you possess JavaScript backend expertise.
Responsibilities
- Spearhead the creation and enhancement of high-quality, efficient React components for our web applications, in adherence to best practices and coding conventions.
- Work alongside UI/UX designers to translate design mockups into responsive and engaging user interfaces.
- Enhance application speed and scalability while ensuring compatibility across various browsers.
- Collaborate with backend developers to integrate frontend elements with backend APIs, ensuring seamless communication.
- Provide guidance and mentorship to junior team members, fostering continuous learning.
- Engage in code reviews to maintain code quality and consistency throughout the team.
- Stay updated with the latest frontend development trends and propose innovative ideas to enrich our products.
- Drive architectural decisions and contribute to enhancing the frontend infrastructure.
- Collaborate with product managers to define and implement new features and product roadmaps.
Requirements
- Extensive expertise in React with a proven track record in leading complex frontend projects.
- Proficiency in HTML5, CSS3, JavaScript, and TypeScript.
- Experience with state management libraries like Redux or MobX.
- Familiarity with frontend build tools and package managers such as Vite and npm.
- Understanding of RESTful APIs and asynchronous request handling.
- Sound grasp of version control systems, preferably Git.
- Strong problem-solving skills with attention to detail.
- Excellent communication and interpersonal abilities.
- Demonstrated experience in mentoring junior engineers and guiding technical decisions.
Desirable Skills (Backend)
- Proficiency in backend technologies including Node.js and Express.js.
- Knowledge of relational (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.
- Understanding of server-side development and API design.
- Ability to troubleshoot and optimize backend performance.
Benefits
- Employees are essential to our success, thus we offer stock options for shared success.
- Flexible work policy combining in-person and remote work.
- Regular social events and company outings.
- Comprehensive health insurance coverage.
- Personal development, coaching, and fitness opportunities.
- Five weeks of paid leave per year, in addition to national holidays.
- Access to high-performance office equipment and gadgets.
- Transportation reimbursement.
- Employee discount on company products.
Skills Required
Ledger
Website
www.ledger.comCompany size
Not specified
Location
United States
Description
Not specified
The Hive
AI Engineer (LLMs, DeFi agents)
London, UK
London, UK
Full time
Remote
Why The Hive will keep you awake at night
We’re the Solana AI-Hackathon champions turning abstract DeFi into voice-controlled reality. Your code becomes an intelligent agent that re-balances thousands of wallets while you sleep—and you share in the upside.
What you’ll build
Design LLM-based Solana agents that auto-stake, auto-vote and auto-farm across Jito, Kamino, Marinade and Meteora.
Hook those agents into Telegram, Farcaster and a web console so our users can say “farm mSOL at 8%+ APY” and watch it happen on-chain.
Train reasoning loops on real market data; benchmark them live against your own degenerate trading strategies (yes, you can show off).
Who you are
You personally trade or LP on Solana (send us a public wallet—seriously).
3+ years Python/Rust + production LLM or LangChain work.
You’ve deployed at least one bot that executed >10k on-chain txns or managed >$1 M in TVL.
Nice-to-haves – Serum, Drift, or Tensor market-making scripts; contributor to Solana open-source repos.
Comp & Perks – USDC + BUZZ tokens, gas reimbursed devnet sandbox, bi-monthly hack weeks in Lisbon or NYC.
We’re the Solana AI-Hackathon champions turning abstract DeFi into voice-controlled reality. Your code becomes an intelligent agent that re-balances thousands of wallets while you sleep—and you share in the upside.
What you’ll build
Design LLM-based Solana agents that auto-stake, auto-vote and auto-farm across Jito, Kamino, Marinade and Meteora.
Hook those agents into Telegram, Farcaster and a web console so our users can say “farm mSOL at 8%+ APY” and watch it happen on-chain.
Train reasoning loops on real market data; benchmark them live against your own degenerate trading strategies (yes, you can show off).
Who you are
You personally trade or LP on Solana (send us a public wallet—seriously).
3+ years Python/Rust + production LLM or LangChain work.
You’ve deployed at least one bot that executed >10k on-chain txns or managed >$1 M in TVL.
Nice-to-haves – Serum, Drift, or Tensor market-making scripts; contributor to Solana open-source repos.
Comp & Perks – USDC + BUZZ tokens, gas reimbursed devnet sandbox, bi-monthly hack weeks in Lisbon or NYC.
Payment in Crypto
berttha walker
UI/UX Designer
Full time
Remote
UI/UX Designer for SaaS Dashboard (Figma)
Job Summary:
We're building ClearTrack, a lightweight SaaS tool for tracking tasks and performance in remote teams. We're looking for a UI/UX designer to design 6–8 clean, modern dashboard screens (desktop + mobile).
Scope of Work:
1. Design dashboard UI (Task List, Time Tracker, Reports, Settings)
2. Create responsive mockups in Figma
3. Deliver clickable prototype + style guide
4. Collaborate with our developer for smooth handoff
Budget:
Fixed: $800–$1200 (negotiable based on experience)
Requirements:
1. SaaS/dashboard UI design experience
2. Proficiency in Figma
3. Strong communication & fast turnaround
To Apply:
If you're interested, please:
1. Send a short proposal letter explaining why you're a good fit
2. Share your portfolio (SaaS/dashboard preferred)
3. Include your email address
4. Mention your availability and estimated delivery time
Bonus if you have:
Experience designing admin panels or productivity tools
Job Summary:
We're building ClearTrack, a lightweight SaaS tool for tracking tasks and performance in remote teams. We're looking for a UI/UX designer to design 6–8 clean, modern dashboard screens (desktop + mobile).
Scope of Work:
1. Design dashboard UI (Task List, Time Tracker, Reports, Settings)
2. Create responsive mockups in Figma
3. Deliver clickable prototype + style guide
4. Collaborate with our developer for smooth handoff
Budget:
Fixed: $800–$1200 (negotiable based on experience)
Requirements:
1. SaaS/dashboard UI design experience
2. Proficiency in Figma
3. Strong communication & fast turnaround
To Apply:
If you're interested, please:
1. Send a short proposal letter explaining why you're a good fit
2. Share your portfolio (SaaS/dashboard preferred)
3. Include your email address
4. Mention your availability and estimated delivery time
Bonus if you have:
Experience designing admin panels or productivity tools
Payment in Crypto
bitcastle .
Chief Technology Officer (Japanese Speaking)
Singapore
Singapore
Full time
Remote
Job description:
Bitcastle is a cryptocurrency exchange platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-Time Japanese speaking Chief Technology Officer to lead our engineering team.As frequent communication with Japan and Vietnam entities is required, this role will require Japanese language proficiency and will be fully remote at the moment.
– Formulate strategy and establish the technical vision for the business
– Preparation of specifications and design documents for product development
– Project management of the development process, including quality control
– Define and refine engineering workflows, tech architecture and infrastructure
– Build, develop, lead a world class engineering team
Requirements:
– Experience as a CTO or in a similar technology leadership role in cryptocurrency exchanges or brokerage firms.
– Strong leadership capabilities – with proven success of building, developing and leading an engineering team
– Experience in development using Python, PHP and NodeJS
– Project management experience
– Business level English
– Business level Japanese language skills (JLPT N2 and above) to communicate with Japan and Vietnam entity without need for translator
Ideal Candidate:
– Has project management experience
– Has experience as CTO or similar role in a startup
– Knowledge and interest in cryptocurrency
Project Frameworks and Languages:
– Backend: nestJS(Node JS), Laravel (PHP),Python
– Database: Redis, My SQL
– Frontend: Vue JS
– Mobile: React Native, Android Native, Swift
– DevOps: Git, CI/CD, Docker, Jenkins, GitLabCD
– Cloud: AWS
Bitcastle is a cryptocurrency exchange platform which aims to create a new age of exchange where everyone can use it safely and have fun. As we expand and take a more active approach to global expansion, bitcastle is looking to hire a Full-Time Japanese speaking Chief Technology Officer to lead our engineering team.As frequent communication with Japan and Vietnam entities is required, this role will require Japanese language proficiency and will be fully remote at the moment.
– Formulate strategy and establish the technical vision for the business
– Preparation of specifications and design documents for product development
– Project management of the development process, including quality control
– Define and refine engineering workflows, tech architecture and infrastructure
– Build, develop, lead a world class engineering team
Requirements:
– Experience as a CTO or in a similar technology leadership role in cryptocurrency exchanges or brokerage firms.
– Strong leadership capabilities – with proven success of building, developing and leading an engineering team
– Experience in development using Python, PHP and NodeJS
– Project management experience
– Business level English
– Business level Japanese language skills (JLPT N2 and above) to communicate with Japan and Vietnam entity without need for translator
Ideal Candidate:
– Has project management experience
– Has experience as CTO or similar role in a startup
– Knowledge and interest in cryptocurrency
Project Frameworks and Languages:
– Backend: nestJS(Node JS), Laravel (PHP),Python
– Database: Redis, My SQL
– Frontend: Vue JS
– Mobile: React Native, Android Native, Swift
– DevOps: Git, CI/CD, Docker, Jenkins, GitLabCD
– Cloud: AWS
Astra Byte Sync
Web3 Gaming Platform Development Team
Full time
Remote
Company Overview
A fastest growing Blockchain company is looking to create a decentralized gaming platform that empowers players and developers alike. We are currently seeking to build a talented team to bring their vision to life.
Position Overview
We are looking for skilled professionals to join our development team for a Web3 gaming platform. The ideal candidates will be passionate about blockchain technology and gaming, and possess the expertise to contribute to various aspects of our project. We are hiring for the following roles:
1. Frontend Developers
Responsibilities: Design and implement user interfaces for the gaming platform using modern frameworks (e.g., React, Vue.js). Collaborate with UX/UI designers to create engaging and intuitive user experiences.
Qualifications: Proficiency in HTML, CSS, JavaScript, and relevant frameworks. Experience with Web3 technologies is a plus.
2. Backend Developers
Responsibilities: Develop and maintain server-side logic, database management, and API integration. Ensure the platform's performance, security, and scalability.
Qualifications: Strong knowledge of Node.js, databases (e.g., MongoDB, PostgreSQL), and experience with cloud services. Familiarity with blockchain technology is advantageous.
3. Blockchain Developers
Responsibilities: Design and implement smart contracts, manage blockchain integrations, and ensure the security of decentralized applications. Collaborate with the team to optimize blockchain performance.
Qualifications: Expertise in Solidity, JavaScript, Rust, or Python. Experience with Ethereum and other blockchain platforms is essential.
4. Technical Leader
Responsibilities: Oversee the technical direction of the project, mentor team members, and ensure best practices in development. Collaborate with stakeholders to align technical goals with business objectives.
Qualifications: Proven experience in leading development teams, strong problem-solving skills, and a deep understanding of blockchain technologies.
5. Project Manager
Responsibilities: Manage project timelines, resources, and deliverables. Facilitate communication between team members and stakeholders, ensuring that the project stays on track and within budget.
Qualifications: Strong organizational and leadership skills, experience in project management methodologies (Agile, Scrum), and familiarity with the gaming and blockchain industries.
What We Offer
Competitive salaries and benefits
A dynamic and collaborative work environment
Opportunities for professional growth and development
The chance to be part of an innovative project that shapes the future of gaming
How to Apply
If you are passionate about gaming and blockchain technology and are excited to contribute to a groundbreaking project, we would love to hear from you! Please submit your resume and a cover letter detailing your relevant experience and why you would be a great fit for our team.
Join us in creating the next generation of gaming experiences!
A fastest growing Blockchain company is looking to create a decentralized gaming platform that empowers players and developers alike. We are currently seeking to build a talented team to bring their vision to life.
Position Overview
We are looking for skilled professionals to join our development team for a Web3 gaming platform. The ideal candidates will be passionate about blockchain technology and gaming, and possess the expertise to contribute to various aspects of our project. We are hiring for the following roles:
1. Frontend Developers
Responsibilities: Design and implement user interfaces for the gaming platform using modern frameworks (e.g., React, Vue.js). Collaborate with UX/UI designers to create engaging and intuitive user experiences.
Qualifications: Proficiency in HTML, CSS, JavaScript, and relevant frameworks. Experience with Web3 technologies is a plus.
2. Backend Developers
Responsibilities: Develop and maintain server-side logic, database management, and API integration. Ensure the platform's performance, security, and scalability.
Qualifications: Strong knowledge of Node.js, databases (e.g., MongoDB, PostgreSQL), and experience with cloud services. Familiarity with blockchain technology is advantageous.
3. Blockchain Developers
Responsibilities: Design and implement smart contracts, manage blockchain integrations, and ensure the security of decentralized applications. Collaborate with the team to optimize blockchain performance.
Qualifications: Expertise in Solidity, JavaScript, Rust, or Python. Experience with Ethereum and other blockchain platforms is essential.
4. Technical Leader
Responsibilities: Oversee the technical direction of the project, mentor team members, and ensure best practices in development. Collaborate with stakeholders to align technical goals with business objectives.
Qualifications: Proven experience in leading development teams, strong problem-solving skills, and a deep understanding of blockchain technologies.
5. Project Manager
Responsibilities: Manage project timelines, resources, and deliverables. Facilitate communication between team members and stakeholders, ensuring that the project stays on track and within budget.
Qualifications: Strong organizational and leadership skills, experience in project management methodologies (Agile, Scrum), and familiarity with the gaming and blockchain industries.
What We Offer
Competitive salaries and benefits
A dynamic and collaborative work environment
Opportunities for professional growth and development
The chance to be part of an innovative project that shapes the future of gaming
How to Apply
If you are passionate about gaming and blockchain technology and are excited to contribute to a groundbreaking project, we would love to hear from you! Please submit your resume and a cover letter detailing your relevant experience and why you would be a great fit for our team.
Join us in creating the next generation of gaming experiences!
Jack Morty
Project Manager / Coordinator
Part time
Remote
We’re looking for a Project Coordinator to join LeadWave Group, a growing startup in the SEO & affiliate space.
Our team is already working on our first product, and we need someone to help organize workflows, tasks, and team communication.
Responsibilities:
🔹 Manage task boards (Trello/ClickUp) and monitor progress
🔹 Assign tasks to SEO, designers, researchers, copywriters
🔹 Help the founder plan weekly/monthly sprints
🔹 Track deadlines and team priorities
🔹 Coordinate communication via Discord/Telegram
🔹 Maintain documentation and workflows in Notion
Format:
🔸 Remote
🔸 Part-time (5–10 hrs/week)
🔸 Initially unpaid (pre-revenue), with transition to paid/fixed/percentage model
🔸 Flexible hours, informal startup environment
🔸 Opportunity to grow into a full Product Manager role
Requirements:
Experience in coordinating small teams or organizing workflows
Familiar with Trello, Notion, ClickUp, or similar tools
Strong communication and self-management skills
Bonus: basic understanding of SEO/digital projects
English: able to read and write messages
Our team is already working on our first product, and we need someone to help organize workflows, tasks, and team communication.
Responsibilities:
🔹 Manage task boards (Trello/ClickUp) and monitor progress
🔹 Assign tasks to SEO, designers, researchers, copywriters
🔹 Help the founder plan weekly/monthly sprints
🔹 Track deadlines and team priorities
🔹 Coordinate communication via Discord/Telegram
🔹 Maintain documentation and workflows in Notion
Format:
🔸 Remote
🔸 Part-time (5–10 hrs/week)
🔸 Initially unpaid (pre-revenue), with transition to paid/fixed/percentage model
🔸 Flexible hours, informal startup environment
🔸 Opportunity to grow into a full Product Manager role
Requirements:
Experience in coordinating small teams or organizing workflows
Familiar with Trello, Notion, ClickUp, or similar tools
Strong communication and self-management skills
Bonus: basic understanding of SEO/digital projects
English: able to read and write messages