Blockchain Developer

Please read the job description carefully before applying. Engagement Type: W2 only (No C2C / No C2H) Candidates must be authorized to work in the U.S. on W2 Professional references and work authorization verification will be requested during later stages of the interview process, if shortlisted. Interested and qualified candidates are encouraged to apply-------------------------------------------------------------------------------------------------------------Senior Blockchain Developer (5–6+ Years Experience)Location: Manassas, VA (Hybrid)Duration: 12 MonthsJob Type: Contract (Hybrid)Employment: W2 only (No C2C / No C2H)Visa: Any except OPT EAD | H1B Transfers allowedJob OverviewWe are looking for a Senior Blockchain Developer with a minimum of 5–6 years of hands-on experience in designing and delivering enterprise-grade blockchain and distributed ledger solutions. The ideal candidate has deep expertise in smart contracts, cloud-based deployments, secure architectures, and scalable financial systems. Key

Responsibilities

Design, develop, and maintain blockchain applications and smart contracts using Solidity, Python, Java, TypeScript, JSON, and REST APIs Build and deploy DLT-based applications across EVM and non-EVM platforms Implement cryptographic security mechanisms for secure transactions and data integrity Develop and optimize blockchain protocols, consensus mechanisms, and privacy infrastructure Create and maintain technical and architectural documentation Support test setup, QA, UAT, and Production deployments Deploy and manage blockchain solutions on AWS Build and maintain CI/CD pipelines and containerized deployments Collaborate with cross-functional teams to deliver scalable and secure solutions Mandatory Skills & Experience (5–6+ Years Required) Overall Blockchain / DLT Experience: 5–6+ years AWS Cloud Deployments: 5+ years Smart Contracts & Solidity: 5+ years Python: 5+ years TypeScript: Hands-on experience Java: Hands-on experience CI/CD Pipelines: Strong hands-on experience Containerization: Docker, Kubernetes, or similar Technical Skill Set Blockchain: EVM & non-EVM chains, Smart Contracts, Privacy Infrastructure Programming: Solidity, Python, Java, TypeScript Cloud & DevOps: AWS, CI/CD, Docker, Kubernetes Security: Cryptography, digital signatures, secure transaction handling APIs & Integration: REST APIs, JSON Testing & Support: QA, UAT, Production support Preferred

Qualifications

Experience with financial services or high-throughput transaction systems Knowledge of blockchain security audits, compliance, and governance Strong communication and documentation skills Experience working in hybrid or enterprise environments