Blockchain Developer

Job description

Description
We are seeking a talented Blockchain Developer to join our innovative technology team exploring and implementing distributed ledger technology (DLT) and blockchain solutions to enhance banking operations, payments, trade finance, securities settlement, digital asset custody, and tokenized assets.

You will design, develop, and maintain secure, scalable blockchain-based applications and infrastructure that meet strict financial regulatory, security, privacy, and performance requirements while integrating with existing core banking, payment, and risk systems.


Key Responsibilities

+ Design, develop, test, and deploy blockchain solutions using platforms such as Hyperledger Fabric, R3 Corda, Ethereum (private/permissioned), Quorum, or other enterprise-grade DLT frameworks.

+ Write, audit, and maintain smart contracts (Solidity, Chaincode, or equivalent) with a strong focus on security, gas optimization (where applicable), and formal verification methods.

+ Build and integrate decentralized applications (dApps), APIs, middleware, and microservices that connect blockchain networks to core banking systems, payment rails (e.g., SWIFT, RTP, FedNow), KYC/AML platforms, and internal databases.

+ Collaborate with cross-functional teams (architecture, DevOps, compliance, legal, risk, product, and business stakeholders) to define requirements, translate business use cases (e.g., tokenization of assets, cross-border payments, trade finance, settlement) into technical designs.

+ Implement cryptographic protocols, consensus mechanisms, identity management (e.g., decentralized identity), privacy-preserving techniques (zero-knowledge proofs, private data collections), and security best practices.

+ Ensure solutions comply with banking regulations (e.g., OCC, Fed, SEC, MiCA, Basel, data privacy laws like GDPR/CCPA) and internal risk & control frameworks.

+ Participate in proof-of-concept (PoC), pilot, and production implementations, including performance tuning, scalability testing, disaster recovery planning, and production support.

+ Conduct code reviews, security audits, threat modeling, and contribute to continuous improvement of blockchain development standards and tooling.

+ Stay current with emerging blockchain, digital assets, and Web3 technologies relevant to financial services.


Requirements

+ Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field (or equivalent experience).

+ 4–8+ years of professional software development experience, with at least 2–4 years hands-on with blockchain/DLT technologies in production or near-production environments.

+ Strong proficiency in one or more of: Solidity, Go, Java, Kotlin, Rust, or Node.js in a blockchain context.

+ Experience with enterprise blockchain platforms (Hyperledger Fabric, Corda, Ethereum private networks, Polygon, ConsenSys Quorum, etc.).

+ Solid understanding of cryptography, distributed systems, peer-to-peer networking, consensus algorithms, and smart contract security vulnerabilities (reentrancy, overflow, etc.).

+ Experience integrating blockchain solutions with traditional financial systems (REST/SOAP APIs, message queues like Kafka, databases like PostgreSQL/Oracle).

+ Familiarity with DevOps practices (CI/CD, Docker, Kubernetes, Terraform, cloud platforms like AWS, Azure, or GCP) and secure SDLC.

+ Knowledge of financial services concepts (payments, securities, custody, KYC/AML, regulatory reporting).

Preferred Qualifications

+ Experience in regulated financial institutions or FinTech with exposure to digital assets/tokenization initiatives.

+ Certifications such as Certified Blockchain Developer, Hyperledger, or equivalent.

+ Knowledge of privacy-enhancing technologies (zk-SNARKs, zk-STARKs, confidential transactions).

+ Experience with regulatory sandboxes, CBDC pilots, or stablecoin implementations.

+ Background in microservices architecture and event-driven systems.


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