Java Developer

EPAM provides digital platform engineering and software development services, focusing on enterprise-grade solutions for various industries including financial services and blockchain technology.

• Lead development of backend services for stablecoin lifecycle management including issuance, redemption, freezing, and audit;
• Oversee custodial wallet backend development covering custodial, multisig, MPC, and account abstraction architectures;
• Drive crypto-acquiring platform backend development including merchant onboarding, POS integrations, transaction processing, and settlement workflows;
• Develop blockchain integrations using web3j for Ethereum/Besu and smart contract interactions;
• Implement RESTful APIs and gRPC services for internal and external system integrations;
• Coordinate with mobile development teams for banking application integrations and API design;
• Build secure key management and signing services integrated with HSM, MPC solutions, and keyless architectures;
• Optimize backend performance for high-throughput transaction processing;
• Lead and mentor the development team while ensuring code quality standards and best practices.

• Extensive backend development experience with a significant background in blockchain/cryptocurrency projects;
• Strong proficiency in Java and Spring Boot;
• Hands-on experience with Web3J or similar blockchain integration libraries;
• Deep understanding of EVM, transactions, gas optimization, and smart contract interactions;
• Understanding of different wallet architectures and custody models;
• Experience with smart contract development, role-based access control, and tokenization systems;
• Knowledge of payment processing, POS integrations, and acquiring systems;
• Strong experience with microservices architecture, API design, and enterprise integration patterns;
• Experience with mobile application backend development and API design;
• Proficiency in database design and optimization including PostgreSQL, MongoDB, and Redis;
• Experience leading development teams and mentoring junior developers;
• English proficiency at B2 level or higher;
• Russian language proficiency;
• Nice to have: Experience with Hyperledger Besu or enterprise blockchain platforms, experience with Go for mobile backend development, knowledge of app store submission procedures, knowledge of HSM integration and MPC implementations, experience with account abstraction and keyless wallet architectures, experience with POS systems and payment terminal integrations, understanding of financial regulations and compliance requirements for digital assets, experience with high-throughput financial systems.

• No conditions specified