Blockchain Developer (On-Site)

BLOCKCHAIN DEVELOPER (ON-SITE LISBON)

Portuguesecompany hires for on-site position
Location:Lisbon - Entrecampos Portugal
Candidatesmust already live in Portugal
LanguageRequirements: 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 andexperience that match the requirements of the opportunity. This willsignificantly increase your chances of success

Role Overview

We are seeking an experienced Blockchain Developer todesign and implement secure resilient and innovative blockchain-basedsolutions in a cybersecurity-focused environment. This role is fully on-site inLisbon and requires strong technical experience with smart contractsblockchain architectures and secure coding standards.

Important: All mandatory requirements listedbelow must be clearly statedin the CV for proper evaluation.

Responsibilities

Design develop and maintain blockchain-basedsystems focused on security transparency and verifiability.

Implement test and audit smart contracts ensuringintegrity performance and protection against vulnerabilities.

Collaborate with cross-functional teams tointegrate blockchain components into existing platforms and services.

Research and evaluate emerging blockchaintechnologies and propose innovative solutions aligned with business andsecurity needs.

Mandatory Requirements

(These mustappear explicitly in the CV)

Solid experience in blockchain developmentincluding consensus mechanisms and blockchain security fundamentals.

Strong proficiency in Solidity Rust or similarblockchain-oriented programming languages.

Proven experience applying secure coding practicesin blockchain environments.

Bachelors degree in Computer Science or arelated field (preferred but not mandatory).

English proficiency: B2 or C1 (spoken andwritten).

Nice to Have

Experience with zero-knowledge proofs (ZKP)or zero-trust securityecosystems.

Background in cybersecurity cryptography ordistributed systems.

Work Model

90100%on-site in Entrecampos (Lisbon) mandatory.

Full-time position in the cybersecurity sector.

Keywords That Must Be in theCV

Blockchain Development

Smart Contracts

Solidity / Rust

Consensus Algorithms

Blockchain Security

Secure Coding Practices

English B2/C1

On-site Lisbon

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