Web3 Developer Jobs in Hong Kong, Hong Kong SAR

We are a team to design, develop, maintain, and improve software for various ventures projects, i.e., projects that are adjacent to our core businesses and are bootstrapped fast with a lean team. You will be actively involved in the design of various components behind scalable applications, from frontend UI to backend infrastructure.

We are seeking a Senior QA Automation Engineer who combines deep expertise in mobile and API test automation with hands-on experience leveraging AI/LLM technologies to accelerate quality engineering. You will play a key role in building next-generation, AI-powered test automation systems that elevate the quality, efficiency, and intelligence of our testing pipeline for the Crypto.com App.

Responsibility

•   Design, develop and execute test plans and test cases with a strong emphasis on automation to shorten the test cycle and solve technical challenges through code.

•   Develop, maintain and continuously improve test frameworks, tools and technologies — including AI-augmented test generation, intelligent test selection, and automated result analysis.

•   Build and integrate AI-powered capabilities into our QA pipeline, such as LLM-based test case generation, smart deduplication, log/error analysis, and self-healing test scripts.

•   Work with Development, Product Management and other QA engineers to design and implement effective test and validation strategies for new features.

•   Estimate test efforts, analyze and communicate test results, and participate in day-to-day QA activities including defect triage and metrics reporting.

•   Create, execute and troubleshoot automated test scenarios across mobile, REST and WebSocket APIs.

•   Contribute to robust, scalable and high-quality test automation solutions for functional, regression and performance testing.

•   Contribute to the building and maintenance of CI/CD environments and ongoing process improvement activities.

•   Identify improvements in test and development processes; explore and prototype emerging AI tooling (LLM agents, embedding-based search, RAG pipelines) to address QA-specific needs.

•   Mentor junior QA engineers and act as a technical reference within the team on automation best practices and AI-assisted testing.

•   Maintain a high quality bar in a complex and constantly evolving workspace

Requirements

Core QA Automation (Must-have)

•   5+ years of experience in mobile testing and automated test techniques, with a strong focus on quality throughout the entire software development cycle.

•   Solid experience in REST and WebSocket API automation testing with Python / Java / JS.

•   Hands-on experience with frameworks such as Pytest, Pytest-bdd, Appium, Selenium, Playwright, Cucumber, etc.

•   Strong knowledge of object-oriented programming with solid coding and debugging skills.

•   Strong design and development skills in Python / Java / JS.

•   Good understanding of software design principles, patterns, algorithms, data structures and multi-threading concepts.

•   Proven ability to translate functional requirements and use cases into working test plans and test cases.

•   Working knowledge of Continuous Integration practices with Jenkins or GitHub Actions.

•   Demonstrated skill in using coding standards and being an active participant in code reviews.

•   Proficient English communication skills to adapt to a globalized work team.

AI / LLM Experience (Preferred — exposure or hands-on experience expected, deep specialization not required)

•   Practical experience integrating heterogeneous LLM APIs (e.g., OpenAI, Anthropic) into engineering workflows or test tooling.

•   Familiarity with prompt engineering and structured output parsing (e.g., Pydantic, Instructor) — including basic self-correction / retry mechanisms to ensure stable LLM outputs.

•   Exposure to RAG pipelines and embedding-based retrieval, including using similarity (e.g., > 0.95 cosine similarity) for test case deduplication or recall.

•   Working knowledge of at least one vector database (e.g., Milvus, Pinecone, Chroma, Weaviate).

•   Hands-on experience with AI coding tools (e.g., Cursor, Windsurf, Claude Code, Copilot) and a habit of leveraging them to maximize delivery efficiency ("Vibe Coding" / AI-native mindset).

•   Basic understanding of AI Agent concepts — ReAct, Memory, Tool Calling — and any experience designing or maintaining agent-based systems is a strong plus.

•   Bonus: awareness of next-generation agent frameworks (e.g., LangGraph, multi-agent orchestration, Hermes Agent, OpenClaw) or interest in applying them to QA automation.

Nice to Have

•   Experience working in an agile environment.

•   Ability to work across Windows, Linux and macOS environments.

•   Prior experience in fintech, crypto, or trading platforms.

•   Passion for improving code quality through close collaboration with the development team.

Life @ Crypto.comEmpowered to think big. Try new opportunities while working with a talented, ambitious and supportive team.Transformational and proactive working environment. Empower employees to find thoughtful and innovative solutions.Growth from within. We help to develop new skill-sets that would impact the shaping of your personal and professional growth.Work Culture. Our colleagues are some of the best in the industry; we are all here to help and support one another.One cohesive team. Engage stakeholders to achieve our ultimate goal - Cryptocurrency in every wallet.Work Flexibility Adoption. Flexi-work hour and hybrid or remote set-upAspire career alternatives through us - our internal mobility program offers employees a new scope.Work Perks: crypto.com visa card provided upon joiningAre you ready to kickstart your future with us?BenefitsCompetitive salaryAttractive annual leave entitlement including: birthday, work anniversaryWork Flexibility Adoption. Flexi-work hour and hybrid or remote set-upAspire career alternatives through us. Our internal mobility program can offer employees a diverse scope.Work Perks: crypto.com visa card provided upon joiningOur Crypto.com benefits packages vary depending on region requirements, you can learn more from our talent acquisition team.About Crypto.com:Founded in 2016, Crypto.com serves more than 150 million customers and is the world's fastest growing global cryptocurrency platform. Our vision is simple: Cryptocurrency in Every Wallet™. Built on a foundation of security, privacy, and compliance, Crypto.com is committed to accelerating the adoption of cryptocurrency through innovation and empowering the next generation of builders, creators, and entrepreneurs to develop a fairer and more equitable digital ecosystem.Learn more at https://crypto.com.Crypto.com is an equal opportunities employer and we are committed to creating an environment where opportunities are presented to everyone in a fair and transparent way. Crypto.com values diversity and inclusion, seeking candidates with a variety of backgrounds, perspectives, and skills that complement and strengthen our team.Personal data provided by applicants will be used for recruitment purposes only.Please note that only shortlisted candidates will be contacted.We may use artificial intelligence tools to analyze the content of your Resume/CV against the specific requirements for the position. The purpose is to support our recruitment team in reviewing applications more effectively. These tools assist our recruitment team in their evaluation of your application by providing recommendations, but they do not replace human judgment. Final hiring decisions are ultimately made by humans who consider the insights generated by the tools along with other relevant information. If you would like more details about how your personal information is processed, please contact us.

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