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)

Benefits

• 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.)

We believe that the greatest strength of the company is its people. EPAM is fully committed to help its employees to reach their full potential and achieve their professional goals through continues learning. With this in mind, we would like to introduce to you few of the many opportunities and services which we believe will help you expand your current knowledge:
• Career development opportunities with a transparent career path
• Wide range of professional trainings, workshops, and mentoring programs plus unlimited access to LinkedIn Learning
• Learning resources and financial support for completing certification programs
• Christmas and Vacation bonus
• Corporate Health Insurance (basic and supplementary)
• Free yearly medical check-ups
• 25 days of vacation

• We connect like-minded people
  • Experience exchange with colleagues from 55+ locations
  • Corporate and social events
  • Enjoyable working environment
• We invest in your growth
  • Personal career development, soft skills and well-being programs
  • Unlimited access to Internal Learning Platform
  • Free English classes with certified teachers
• We cover it all
  • Participation in the Employee Stock Purchase Plan
  • Comprehensive medical package (can be extended to family members)
  • Four trust days per year for personal needs
  • Benefits package (hotels, restaurants, stores and services)