Blockchain Test Engineer

Role Overview

• Design, develop, and implement robust test plans, test cases, and test scripts for blockchain applications, smart contracts and related distributed systems
• Execute various types of testing, including functional, integration, performance, security, and regression testing, specifically tailored for blockchain environments
• Test and integrate blockchain protocols and platforms, including Ethereum-compatible networks (e.g., Hyperledger Besu), Cosmos and Canton
• Test smart contracts for correctness, security vulnerabilities, and edge cases
• Collaborate closely with development teams and blockchain architects to understand technical specifications and ensure testability of features
• Perform load, performance and stress testing to assess scalability and transaction throughput
• Validate blockchain network behavior, including consensus mechanisms, node synchronization, and fault tolerance
• Test integrations with wallets, APIs, backend services
• Identify, document, and track software defects and work with development teams to ensure timely resolution
• Develop and maintain automated test frameworks and tools to improve efficiency and coverage of blockchain testing
• Contribute to the continuous improvement of testing processes, methodologies, and best practices within a blockchain context
• Stay up-to-date with emerging blockchain technologies, testing tools, and industry trends
• Participate in code reviews and provide constructive feedback to enhance code quality and testability
• Ensure adherence to S.W.I.F.T.'s quality standards and regulatory compliance requirements in all testing activities

Requirements

• Bachelor's Degree in Computer Science, Software Engineering, or a related field
• Proven (5+ years) of experience in software quality assurance or testing with a significant focus on blockchain or distributed ledger technologies
• Solid understanding of blockchain fundamentals, including consensus mechanisms (PoW, PoS, BFT), smart contracts, cryptography, and distributed system architectures
• Proficiency in at least one programming language commonly used in blockchain development or testing (e.g., Python, JavaScript, Go, Java, Solidity)
• Experience with test automation frameworks and tools (e.g., Selenium, Playwright, Jest, Truffle, Hardhat)
• Familiarity with CI/CD pipelines and tools (e.g., Jenkins, GitLab CI)
• Strong analytical and problem-solving skills, with meticulous attention to detail
• Excellent communication and collaboration skills, with the ability to articulate technical concepts clearly to both technical and non-technical stakeholders.

Tech Stack

• Distributed Systems
• Java
• JavaScript
• Jenkins
• Jest
• Node.js
• Python
• Selenium
• Solidity
• Go

Benefits

• Medical, dental, vision and life insurance with no premium costs for employees and their families
• Retirement plan plus matching 401k
• Competitive base salary and bonus opportunity