Senior Blockchain Engineer

We are looking for a Senior Blockchain Engineer . If you are looking to give your career a real boost with a global leader in digital transformation, EPAM is the perfect choice. If you’d like to learn more about this position and project, apply now.

Responsibilities

• Design, develop, and deploy secure smart contracts using Solidity for the Ethereum blockchain ecosystem
• Architect and implement robust decentralized applications (dApps) and backend integration with smart contracts
• Conduct comprehensive code reviews, gas optimization, and thorough unit/integration testing for all blockchain components
• Collaborate closely with product, security, and front-end teams to ensure seamless integration and top-tier protocol performance

Requirements

• 5+ years of software engineering experience with a strong focus on blockchain development and smart contracts
• Expert-level proficiency in Solidity and deep, hands-on experience with the Ethereum Virtual Machine (EVM) and Ethereum ecosystem
• Proven track record of designing, auditing, and successfully deploying secure, production-grade smart contracts on mainnet
• Strong understanding of cryptography, consensus mechanisms, DeFi protocols, and Web3 security best practices

Nice to have

• Experience with smart contract testing and development frameworks such as Hardhat, Foundry, or Truffle
• Familiarity with Layer 2 scaling solutions (e.g., Arbitrum, Optimism, zk-Rollups) and cross-chain bridge technologies
• Contributions to open-source blockchain projects, developer tooling, or recognized security audit participation (e.g., bug bounties)
• Experience with zero-knowledge (ZK) proofs or alternative smart contract languages (e.g., Rust, Vyper)

We offer

• Diverse multicultural, multi-functional, and multilingual work environment
• Global scope, international projects in different business domains: life sciences and healthcare, retail, and distribution, software and hi-tech, etc.
• Outstanding career development opportunities with a transparent career path and a roadmap to accelerate your journey
• Great learning and development opportunities, including in-house professional training, career advisory and coaching, sponsored professional certifications
• Knowledge-sharing with colleagues from EPAM's global tech communities
• 25 days holiday per annum
• 5 days of sick leave without medical certification
• Private health insurance for employees and discount for private health insurance for family members
• Discount for Fit Pass program
• Comfortable modern offices in Belgrade and Novi Sad or remote work from any location in Serbia
• Regular corporate, social and wellbeing events (parties, sport events, advanced CSR programs etc.)

The remote option applies only to the Candidates who will be working from any location in Serbia. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, diverse community to help you discover your fullest potential. No less important is our applicants' safety, well-being, and experience. Therefore, until further notice, all EPAM employment interviews will be conducted remotely. Our recruitment professionals and hiring managers are standing by to ensure a robust and engaging virtual candidate experience. We look forward to speaking with you! Thank you for your interest in this position. Please note that only candidates whose experience closely matches the job requirements will be contacted. If you do not receive an email from us, please do not be discouraged—feel free to apply for other positions that better align with your experience. If you have any questions, you can reach us at [email protected]