Senior QA Engineer – Typescript, Blockchain

🔥 2 minutes ago

🇺🇦 Ukraine – Remote

⏳ Contract/Temporary

🟠 Senior

🔧 QA Engineer (Quality Assurance)

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Dev.Pro

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2011

🏥 Healthcare

🏨 Hospitality

📦 Logistics

Healthcare • Hospitality • Logistics

Dev. Pro is a software development partner that supports technology companies with custom outsourced software development services. With over 13 years of experience, a team of more than 900 experts, and operations in over 50 countries, Dev. Pro provides a comprehensive range of services including cloud development, DevOps, software testing and QA, system integration, and application security. The company caters to a wide array of industries such as digital commerce, fintech, hospitality, and healthcare by delivering tailored software development experiences. Dev. Pro emphasizes quality, innovation, and a transparent collaboration process to accelerate growth for ambitious startups and Fortune 500 enterprises alike, ensuring successful outcomes through a well-balanced and efficient team approach.

📋 Description

• Review business requirements and technical documentation to understand system functionality and identify testing needs • Manually test new features and existing functionality to understand system behavior and guide test automation efforts • Define and improve QA strategies, test plans, and quality gates • Establish testing ownership and coordinate responsibilities between QA and engineering teams • Work closely with engineering and product teams to define test coverage and acceptance criteria • Build and maintain automated test suites, frameworks, and test harnesses, focusing on backend, integration, and contract testing • Test blockchain integrations, smart contracts, REST APIs, JSON-RPC endpoints, MCP servers, and other blockchain-specific functionality • Integrate and monitor automated tests within CI/CD pipelines and quality gates • Investigate and troubleshoot issues across distributed systems and blockchain integrations • Adjust testing priorities and approaches as project needs evolve • Maintain test documentation, report quality risks, and communicate testing progress and blockers • Help expand automation coverage and improve QA practices across multiple projects

🎯 Requirements

• 5+ years in QA/SDET roles, covering both manual and automated testing across the full SDLC • Strong experience with backend and non-UI test automation • Hands-on experience developing, maintaining, and debugging automated tests • Strong programming skills for test automation, preferably with TypeScript/Node.js • Ability to define QA strategies, test plans, and quality gates from the ground up • Understanding of blockchain fundamentals, including wallets, transactions, and blockchain types • Experience testing REST APIs and RPC-based interfaces (JSON-RPC, gRPC) • Experience with Docker-based test environments and debugging containerized services • Experience integrating automated tests into CI/CD pipelines and establishing quality gates • Experience with AWS-based infrastructure • Experience with MongoDB or PostgreSQL • Strong analytical and problem-solving skills to identify risks and propose solutions • Ability to independently manage testing activities, take ownership of deliverables, and proactively communicate progress and blockers • Ability to adapt to changing priorities and demonstrate a flexible, hands-on approach to testing • Ability to define testing scope and balance test coverage between QA and engineering teams • Strong communication and collaboration skills across multiple stakeholders and teams • Upper-Intermediate+ English level • Desirable: Hands-on experience testing blockchain systems, smart contracts, and transaction flows • Desirable: Experience with Go for test automation • Desirable: EVM testing experience using Foundry, Hardhat, or similar frameworks • Desirable: Ability to read and understand Solidity or Rust code for smart contract validation • Desirable: Experience with Layer 2 solutions and blockchain protocol testing • Desirable: Experience testing asynchronous messaging systems (AWS SNS/SQS, Azure Service Bus) • Desirable: Experience with Kubernetes • Desirable: Experience with observability-driven testing • Desirable: Experience testing MCP servers • Desirable: Experience with performance and load testing

🏖️ Benefits

• Work on an innovative blockchain platform designed to bring trust and transparency to private markets • Deepen your expertise in blockchain systems, distributed architectures, and complex integrations • Drive the development of test automation frameworks and help shape quality practices across multiple projects • Remote-first work arrangement • Opportunity to join a global team of IT professionals • Contractor engagement

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