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Sansaone

Blockchain Engineer (SN0957)

Sansaone
Belgium · Full-time · Entry

Job Description

Welcome to Sansaone, a dynamic force in the realm of ICT talent acquisition. Born out of a passion for excellence and a vision for connecting outstanding professionals with forward-thinking organizations, we stand as a beacon for strategic recruitment solutions in the Information and Communication Technology sector. With a commitment to excellence and a passion for connecting exceptional professionals with innovative organizations, we are your strategic partner in building transformative teams.

We are looking for an experienced Blockchain Engineer to lead the design and development of scalable, secure, and high-performance blockchain-based products.

  • You will be responsible for building innovative cross-chain interoperability solutions, developing and optimizing smart contracts, and enhancing the architecture of decentralized systems.
  • This is a hands-on technical leadership role where you’ll collaborate with cross-functional teams and ensure excellence in blockchain product development.

Key Responsibilities

  • Design and develop scalable blockchain architecture focusing on security, performance, and maintainability.
  • Build and optimize cross-chain interoperability solutions such as atomic swaps and bridges.
  • Develop and audit smart contracts using Solidity, Yul, and other relevant languages.
  • Create efficient, gas-optimized algorithms and protocols tailored for DeFi and dApp environments.
  • Conduct R&D, implement proofs-of-concept (PoCs), and integrate blockchain best practices.
  • Collaborate with product managers, engineers, and cross-functional teams to define technical requirements.
  • Establish and manage CI/CD pipelines for smart contract deployment and blockchain development workflows.
  • Perform code reviews, mentor junior engineers, and enforce best engineering practices.
  • Stay current with the latest trends in blockchain, Web3, and decentralized technologies.
  • Analyze potential vulnerabilities and design secure, attack-resistant systems.
  • Engage with blockchain communities and contribute to open-source initiatives and ecosystem projects.

Required Experience

  • 7+ years of overall software development experience.
  • 3+ years of hands-on experience in blockchain engineering and smart contract development.
  • Deep knowledge of Ethereum, EVM, Solidity, and Layer 2 protocols like Optimistic and ZK Rollups.
  • Experience designing and deploying cross-chain protocols and working with DeFi primitives.
  • Strong track record of technical leadership, including architecture design and mentoring teams.
  • Experience collaborating with auditors and executing smart contract audits.

Required Skills

  • Solidity
  • Yul
  • Rust
  • TypeScript
  • development tools
  • Foundry
  • Hardhat
  • frameworks
  • DeFi protocols
  • oracle integration
  • blockchain security practices

Hiring Team Member

Avula Srivalli

Recruitment Coordinator

  • LinkedIn
  • Mail

Key Skills

Ranked by relevance

blockchain solidity blockchain development cicd
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Posted
May 05, 2025
Type
Full-time
Level
Entry
Location
Brussels
Company
Sansaone

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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