Blockchain Developer

Blockchain Developer 100% Remote 12 Month+ Contract Hourly Rate: $75/Hr. W2 Candidates must be eligible to work in the United States without sponsorship. Candidates must reside in and work must be performed in the United States. ALTA IT Services is seeking a Blockchain Developer to support an Indiana-based data management and protection customer. This is a 100% remote, 12–month contract position. Candidates must be eligible to work in the United States without sponsorship. KEY RESPONSIBILITIES Product Development • Architect, design, and develop core modules of the Blockchain Data Management platform (data governance, lineage tracking, and MDM). • Implement smart contracts and consensus mechanisms to ensure transparency, immutability, and trust across the platform. • Build APIs and integration services to connect blockchain layers with existing fintech systems. Blockchain Engineering • Design and optimize decentralized ledger structures to store governance metadata, lineage logs, and master data references. • Ensure scalability, security, and fault tolerance of the blockchain network. • Evaluate blockchain frameworks (e.g., Hyperledger Fabric, Ethereum, Quorum, Polygon) and recommend the best fit for fintech data use cases. Data Management • Develop mechanisms to capture and track data lineage across multiple data sources. • Build frameworks for Master Data Management using blockchain identity and tokenization principles. • Implement rule-based data governance policies aligned with fintech regulations. REQUIRED SKILLS & EXPERIENCE Core Technical Skills • 5–8 years of experience in software engineering with at least 2–3 years in Blockchain development. • Proficiency in blockchain frameworks: Hyperledger Fabric, Ethereum (Solidity), Quorum, or similar. • Strong programming expertise in Python, Go, Java, or Node.js. • Hands-on experience with smart contract development and DApps. • Knowledge of distributed systems, consensus algorithms, and cryptographic principles. Data Engineering & Governance • Familiarity with data lineage, data cataloging, and metadata management tools. • Experience with Master Data Management (MDM) solutions and principles. • Understanding of data governance frameworks and fintech compliance (e.g., GDPR, CCPA, PCI DSS). Architecture & Tools • Experience with microservices, containerization (Docker, Kubernetes), and cloud platforms (AWS, Azure, GCP). • Strong knowledge of RESTful APIs, GraphQL, and event-driven architectures (Kafka, RabbitMQ). • Proficiency with CI/CD pipelines, Git, and DevOps practices. Nice-to-Have • Experience with fintech platforms and regulatory data compliance. • Exposure to Zero-Knowledge Proofs, Decentralized Identity (DID), or Tokenization for sensitive data. • Knowledge of AI/ML integration for anomaly detection in data lineage or governance. W2 Hourly Rate: $75/hr. range. Benefits available Please contact Melissa McNally [email protected] consideration System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-MM1 #LI-MM1 #DI-MM1 Ref: #855-IT Baltimore