Web3 Polkadot jobs
Job Title | Company Name | Salary | Location | Tags | Posted | |
---|---|---|---|---|---|---|
Ledger | Paris, France | Web3DeveloperEntry LevelTypeScript | 2w | |||
Past and filled jobs: | ||||||
OP Labs | RemoteWeb3MarketingResearch | |||||
ChainSafe Systems | RemoteWeb3ResearchDeveloper | |||||
ChainSafe Systems | RemoteWeb3ResearchDeveloper | |||||
Subspace Labs | RemoteResearchCommunityDeveloper | |||||
Subspace Labs | RemoteWeb3DeveloperEngineering |
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Software Engineer - Coin Integration - Internship
at Ledger
Jan 31, 2025
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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 the UK, US, Switzerland and Singapore, Ledger has a team of more than 600 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.
We're making the world of digital assets accessible and secure for everyone. Join the mission. 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 600 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 here. At Ledger, we're on a mission to secure the world of digital assets while driving innovative blockchain solutions forward. As an intern on our Coin Integration Team, you’ll have a unique opportunity to gain hands-on experience in blockchain integration. If you’re excited about learning the inner workings of blockchain protocols, building secure connections between hardware and software, and working with cutting-edge technologies, this internship is for you!Duration: 6 months Start date: February / April 2025
The mission
- Assist in Cross-Team Blockchain Integration : Learn how various blockchain protocols (EVM, BTC, Solana, Polkadot, Cosmos, etc.) are integrated into the Ledger ecosystem and help develop new features or improvements.
- Support Connectivity Solutions : Collaborate with the team to ensure seamless interactions between Ledger products and the broader ecosystem. Contribute to Wallet Connect integrations, Dapp integrations in Ledger Live, and Wallet API enhancements.
- Learn JavaScript & Functional Programming : Hone your skills in the JavaScript ecosystem (TypeScript, Node.js, React) and get hands-on exposure to functional programming principles that enable clean, scalable code.
- Collaborate with Experienced Engineers : Work closely with senior engineers and cross-functional teams (product, QA, security) to troubleshoot issues, implement improvements, and maintain high-quality standards.
- Embrace an Agile Mindset : Participate in daily stand-ups, sprint planning, and retrospectives, gaining practical experience in agile workflows and CI/CD processes.
What we're looking for
- Enthusiasm for Technology : A passion for coding, problem-solving, and discovering new ways to enhance blockchain integrations and connectivity features.
- Basic JavaScript Knowledge : Familiarity with JavaScript or TypeScript, along with any experience (projects or coursework) in Node.js or React.
- Willingness to Learn Blockchain : Interest in understanding blockchain fundamentals and Web3 technologies; prior knowledge is a bonus but not required.
- Team Spirit : Strong communication skills and the ability to collaborate effectively in a diverse, fast-paced environment.
- Curiosity About Functional Programming : Openness to exploring functional programming and modern design patterns to develop robust software solutions.
- Agile Curiosity : Basic awareness of agile methodologies, with the desire to actively participate in a collaborative, iterative workflow.
- Bonus points : Exposure to Web3 or Dapp Development (Hands-on experience or coursework in blockchain concepts, smart contracts, or decentralized applications) OR Open-Source Contributions (Involvement in open-source projects, coding communities, or hackathons)
What's in it for you?
- Flexibility: A hybrid work policy
- Social: Frequent social events, snacks and drinks
- High tech: Access to high performance office equipment and gadgets, including Apple products
- Transport: Ledger reimburses 75% of your preferred means of transportation
- Food: We offer lunch vouchers with Swile
- Vacation: 1 day off for every full month worked
Listed in: Crypto Jobs, Web3 Web3 Jobs, Developer Crypto Jobs, Entry Level Crypto Jobs, TypeScript Web3 Jobs, React Crypto Jobs, Solana Crypto Jobs, Internship Web3 Jobs, Senior Web3 Jobs, Security Crypto Jobs, JavaScript Web3 Jobs, EVM Crypto Jobs, Quality Assurance Crypto Jobs, Cosmos Crypto Jobs, Polkadot Web3 Jobs, Open Source Web3 Jobs, Node.js Crypto Jobs.
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Co-founder & COOAID Technology
Each time their services have been nothing short of exceptional. The platform has consistently provided us with a large pool of qualified candidates for various roles within our company. The user-friendly interface and the efficient recruitment process has made it easy for us to fill positions quickly and effectively. We are grateful for the help and support provided by CJL and highly recommend their services to anyone looking to fill roles in the crypto industry.
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Marketing & Communications DirectorAdel
We posted on CryptoJobsList looking for marketing help with community engagement, digital marketing and social media and found two highly qualified candidates within days! We interviewed and hired them within three weeks.
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Project LeadTHORChain
We received over a dozen high-quality job applications in less than a week to this post. It has been very effective and would highly recommend. Service is excellent, UX simple.
Thanks CryptoJobsList!
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General ManagerMeld Gold
Great experience. We have had excellent candidates via Raman and the CryptoJobsList platform. Will definitely use again as we build out other components of the team!
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Communications LeadKleros
CryptoJobsList drives more qualified leads than AngelList!
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Cofounder & COOFleek
We've gotten great leads for developers from CryptoJobsList. I'm definitely a continuous user going forward!
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Founder & CEODataStreamX
The quality of the candidates are by far more relevant and experienced than on other boards. They are in the crypto space and have the past experience to hit the ground running.
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Co-founder & COOAID Technology
Each time their services have been nothing short of exceptional. The platform has consistently provided us with a large pool of qualified candidates for various roles within our company. The user-friendly interface and the efficient recruitment process has made it easy for us to fill positions quickly and effectively. We are grateful for the help and support provided by CJL and highly recommend their services to anyone looking to fill roles in the crypto industry.

Marketing & Communications DirectorAdel
We posted on CryptoJobsList looking for marketing help with community engagement, digital marketing and social media and found two highly qualified candidates within days! We interviewed and hired them within three weeks.