Blockchain Developer – Web3 Security (Portugal Tech Visa Support)
Company: Coinbase
Location: Lisbon, Portugal (Remote or Hybrid)
Visa Pathway: Portugal Tech Visa Program (Fast-Track Work Permit for Tech Talent)
Salary: €90,000 – €130,000 per year
Apply Now: Coinbase Jobs
Contact: pt.hiring@coinbase.com

Join Coinbase in Portugal & Secure the Future of Web3
Coinbase, a global leader in crypto innovation, is hiring a Blockchain Developer in Portugal to advance its Web3 security and smart contract infrastructure. This is a high-impact role for experienced blockchain engineers looking to work on critical security features for decentralized finance (DeFi), digital identity, and crypto asset management.

International candidates are welcome, with full support through Portugal’s Tech Visa—a fast-track immigration pathway for high-skilled tech professionals.

About the Role
You’ll be part of a dedicated blockchain security team working on secure smart contract frameworks, auditing tools, and protocol-level protections that safeguard Coinbase and its user base in the evolving Web3 landscape.

Key Responsibilities
Develop and secure blockchain-based applications and smart contracts (Solidity, Vyper, etc.)

Conduct vulnerability assessments, audits, and threat modeling for DeFi protocols

Collaborate with backend, security, and protocol teams on decentralized architecture

Implement best practices in key management, data privacy, and secure contract deployment

Monitor and respond to real-time threats and zero-day vulnerabilities

Contribute to open-source security tooling for the Web3 community

Ideal Candidate Profile
3+ years’ experience in blockchain or smart contract development

Strong knowledge of Ethereum, EVM, Layer 2 protocols, and DeFi ecosystems

Proficiency in Solidity, Rust, Go, or TypeScript

Experience with tools like Hardhat, Foundry, MythX, and Slither

Passion for Web3 security, cryptography, and protocol integrity

Eligible for or seeking sponsorship under Portugal’s Tech Visa program

What Coinbase Offers
Salary: €90,000 – €130,000 per year + equity options

Full support for the Portugal Tech Visa (fast-track residence permit)

Relocation assistance for international candidates

Remote-first work culture with access to Portugal’s growing Web3 ecosystem

Learning budget and access to open-source projects and leading conferences

Join a team building the next-generation security layer of the decentralized web

Why Work in Portugal?
Ranked as one of the best countries for remote tech professionals

Fast and efficient Tech Visa for non-EU developers

Thriving blockchain community in Lisbon

Affordable lifestyle, strong expat network, and excellent quality of life

How to Apply
Ready to build secure and scalable blockchain infrastructure at the heart of Web3?

Apply Now: www.coinbase.com/careers
HR Contact: pt.hiring@coinbase.com