BLOCKCHAIN DEVELOPER (ON-SITE)

BLOCKCHAIN DEVELOPER (ON-SITE LISBON)Portuguese company hires for on-site position📍 Location: Lisbon - Entrecampos, Portugal⚠ Candidates must already live in Portugal🗣️ Language Requirements: Fluent in Portuguese and English (min B2+)🕓 Experience Levels: 4+ years⚠ Instructions: Please send your CVs in English and make sure to include all skills and experience that match the requirements of the opportunity. This will significantly increase your chances of success_____________________________________________________________Role OverviewWe are seeking an experienced Blockchain Developer to design and implement secure, resilient, and innovative blockchain-based solutions in a cybersecurity-focused environment. This role is fully on-site in Lisbon and requires strong technical experience with smart contracts, blockchain architectures, and secure coding standards.⚠ Important: All mandatory requirements listed below must be clearly stated in the CV for proper evaluation.Responsibilities Design, develop, and maintain blockchain-based systems focused on security, transparency, and verifiability. Implement, test, and audit smart contracts, ensuring integrity, performance, and protection against vulnerabilities. Collaborate with cross-functional teams to integrate blockchain components into existing platforms and services. Research and evaluate emerging blockchain technologies and propose innovative solutions aligned with business and security needs.Mandatory Requirements(These must appear explicitly in the CV) Solid experience in blockchain development, including consensus mechanisms and blockchain security fundamentals. Strong proficiency in Solidity, Rust, or similar blockchain-oriented programming languages. Proven experience applying secure coding practices in blockchain environments. Bachelor’s degree in Computer Science or a related field (preferred but not mandatory). English proficiency: B2 or C1 (spoken and written).Nice to Have Experience with zero-knowledge proofs (ZKP) or zero-trust security ecosystems. Background in cybersecurity, cryptography, or distributed systems.Work Model 90–100% on-site in Entrecampos (Lisbon) — mandatory. Full-time position in the cybersecurity sector.Keywords That Must Be in the CV Blockchain Development Smart Contracts Solidity / Rust Consensus Algorithms Blockchain Security Secure Coding Practices English B2/C1 On-site Lisbon#DI