Description
Mastercard is seeking a talented Senior Software Engineer - Blockchain to join the Mastercard Blockchain and Digital Assets Engineering team. You will be part of a highly collaborative Agile team building innovative, scalable products leveraging blockchain technologies and components for global markets.
You will work alongside talented engineers to design, develop, and deliver high-performance Ethereum/EVM and Web3 solutions, with a strong focus on enterprise-grade architecture, scalability, security, and reliability.
Responsibilities:
- Design and develop scalable, production-grade smart contract systems and Web3 integrations within the Ethereum/EVM ecosystem.
- Lead technical design and architecture discussions, making sound engineering decisions while balancing scalability, security, performance, and maintainability.
- Translate complex business requirements into robust blockchain-based solutions aligned with enterprise standards and best practices.
- Participate in architecture reviews, code reviews, and technical design sessions to drive engineering excellence.
- Collaborate with product, compliance, security, and engineering teams throughout the software development lifecycle.
- Mentor and support engineers by sharing knowledge, promoting best practices, and fostering technical growth across the team.
- Evaluate emerging blockchain technologies, protocols, development frameworks, and industry trends to identify new opportunities and improvements.
- Contribute to the continuous evolution of engineering practices, tooling, automation, and software quality standards.
- Develop, test, deploy, and support applications and services in cloud-native, containerized environments.
- Champion secure coding practices and operational excellence across all phases of development and delivery.
Requirements:
- Proven experience as a Software Engineer, Software Developer, or similar engineering role.
- Strong expertise in Ethereum/EVM and Web3 development using frameworks such as ethers.js, web3.js, or equivalent technologies.
- Proficiency in Solidity and hands-on experience designing, developing, and deploying production-grade smart contracts.
- Deep understanding of blockchain fundamentals, including consensus mechanisms, transaction lifecycle, gas optimization, wallet infrastructure, and security best practices.
- Experience with smart contract development frameworks such as Hardhat, Foundry, or similar toolchains.
- Strong knowledge of software engineering principles, system design, and modern development methodologies.
- Experience working with containerization and orchestration technologies such as Docker and Kubernetes.
- Familiarity with CI/CD pipelines and tools such as Jenkins or equivalent automation platforms.
- Proficiency with source control systems and collaborative development practices in multi-engineer environments.
- Experience building and maintaining automated unit, integration, and end-to-end testing solutions.
- Ability to make sound technical decisions, lead initiatives, and mentor engineers through influence rather than formal authority.
- Comfortable working autonomously in fast-paced Agile environments while balancing competing priorities.
- Strong commitment to code quality, maintainability, security, and continuous improvement.
- Strong communication and collaboration skills, with the ability to explain technical concepts and influence decisions across technical and non-technical audiences.
- Bachelor’s degree in Computer Science, Engineering, Information Systems, or equivalent practical experience.
Benefits:
- Insurance (including medical, prescription drug, dental, vision, disability, life insurance)
- Flexible spending account and health savings account
- Paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave)
- 80 hours of Paid Sick and Safe Time
- 25 days of vacation time and 5 personal days
- 10 annual paid U.S. observed holidays
- 401k with a best-in-class company match
- Deferred compensation for eligible roles
- Fitness reimbursement or on-site fitness facilities
- Eligibility for tuition reimbursement