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Intellectsoft

Lead Blockchain Engineer

Intellectsoft
Spain · Full-time · Mid-Senior

Intellectsoft is a software development company delivering innovative solutions since 2007. We operate across North America, Latin America, the Nordic region, the UK, and Europe.We specialize in industries like Fintech, Healthcare, EdTech, Construction, Hospitality, and more, partnering with startups, mid-sized businesses, and Fortune 500 companies to drive growth and scalability. Our clients include Jaguar Motors, Universal Pictures, Harley-Davidson, Qualcomm, and London Stock Exchange.Together, our team delivers solutions that make a difference. Learn more at www.intellectsoft.net

Our Client is an automated market maker (AMM) that functions as a decentralized exchange, allowing anyone to pool assets and participate in shared market-making strategies. It serves as an essential infrastructure for decentralized finance, providing developers, traders, and liquidity providers with a secure and reliable financial ecosystem.

As a key member of our team, you will be responsible for developing core smart contracts across multiple blockchains and writing and deploying token contracts. Your role will encompass blockchain strategy, market analysis, smart contract development, and backend integrations. Additionally, you will design puzzles and challenges to engage developers, fostering innovation within the ecosystem. You'll collaborate closely with a small, dynamic team and take ownership of critical projects from day one.

Requirements

  • Experience with Layer 1 blockchain development (e.g., EVM, Tendermint)
  • Strong understanding of reward tokens, token security, and standards such as ERC20, ERC721, and ERC1155
  • Expertise in gas optimization for efficient smart contract execution
  • Proficiency in Solidity for smart contract development
  • 3+ years of hands-on experience in smart contract development
  • Passion for coding puzzles and challenges
  • Experience integrating smart contracts with backend systems (Node.js, Express.js, MongoDB)
  • Familiarity with third-party API integration
  • Strong knowledge of MongoDB database structure and best practices
  • Proficiency in Git for version control and collaboration


Nice To Have Skills

  • Experience developing casino-style games (e.g., spinner, coin flip, lottery, splash, etc.)
  • Participation in coding competitions such as ACM ICPC or Topcoder
  • Previous experience working remotely in a startup environment
  • Bachelor's or advanced degree in Computer Science or a related field


Responsibilities

  • Develop the core smart contracts on multiple chains, write and deploy LMNG token contracts
  • Responsible for blockchain strategy, market analysis, smart contracts and backend integrations
  • Develop puzzles and challenges for developers to crack
  • Work closely with a small team and take ownership of important projects from the get-go


Benefits

  • 35 absence days per year for work-life balance
  • Udemy courses of your choice
  • English courses with native-speaker
  • Regular soft-skills trainings
  • Excellence Сenters meetups
  • Online/offline team-buildings

Key Skills

Ranked by relevance

blockchain blockchain development solidity git acm
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Posted
Mar 27, 2025
Type
Full-time
Level
Mid-Senior
Location
Spain

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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