We are looking for a passionate and curious Java Backend QA Engineer to join our team. You'll work closely with developers to ensure the quality of complex financial and Web3 products through deep technical testing — not just black-box validation, but real code-level understanding.
This is a great opportunity for a young talent who wants to grow fast in a high-impact, high-velocity fintech environment.
Responsibilities
Design and execute white-box and grey-box test strategies for Java-based backend services, including unit, integration, and API testing
Read and analyze Java source code to identify edge cases, logic flaws, and potential risk points
Build and maintain automated test frameworks and test tooling for financial backend systems
Collaborate with developers on code reviews, test coverage analysis, and CI/CD pipeline quality gates
Test and validate blockchain transactions, web3 wallet operations, and on-chain/off-chain data consistency
Investigate production issues, trace root causes through logs, DB records, and service call chains
Leverage AI tools (e.g., LLM-assisted test generation, log analysis, code review) to amplify testing efficiency
Requirements:
1+ years of experience in software testing or backend development
Solid understanding of Java — able to read, write, and debug Java code confidently
Hands-on experience with backend testing: REST APIs, message queues (Kafka), databases (MySQL/Redis)
Familiarity with microservice architectures and distributed systems concepts
Strong analytical mindset with attention to detail and a passion for breaking things (in a good way)
Preferred Requirements:
Experience in fintech, crypto, or blockchain domain testing
Knowledge of web3 wallets, on-chain data, or DeFi protocols
Familiarity with Spring Boot, Dubbo, or similar Java frameworks
Experience using AI-assisted tools in daily engineering work
Exposure to white-box testing techniques: code coverage, mutation testing, static analysis
Skills Required
- 1+ years of experience in software testing or backend development
- Solid understanding of Java; able to read, write, and debug Java code
- Hands-on experience with backend testing: REST APIs, message queues (Kafka), databases (MySQL, Redis)
- Familiarity with microservice architectures and distributed systems concepts
- Ability to build and maintain automated test frameworks and test tooling
- Strong analytical mindset with attention to detail and passion for finding edge cases
- Experience in fintech, crypto, or blockchain domain testing
- Knowledge of web3 wallets, on-chain data, or DeFi protocols
- Familiarity with Spring Boot, Dubbo, or similar Java frameworks
- Experience using AI-assisted tools (LLM-assisted test generation, log analysis, code review)
- Exposure to white-box testing techniques: code coverage, mutation testing, static analysis
Binance Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Binance and has not been reviewed or approved by Binance.
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Career-Linked Recognition & Rewards — Performance-linked bonuses can be sizable in favorable crypto cycles, lifting total compensation. Attractive packages in engineering and specialized roles indicate strong rewards for in-demand skills.
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Flexible Benefits — Remote-first flexibility and work-from-anywhere options add meaningful value to the overall rewards package. Flexible schedules and location independence are presented as core perks.
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Retirement Support — Binance.US includes a 401(k) as part of its benefits. This provides a conventional retirement pillar alongside cash and bonus components.
Binance Insights
What We Do
Binance is the world’s leading blockchain and cryptocurrency infrastructure provider with a financial product suite that includes the largest digital asset exchange by volume. Trusted by millions worldwide, the Binance platform is dedicated to increasing the freedom of money for users, and features an unmatched portfolio of crypto products and offerings, including: trading and finance, education, data and research, social good, investment and incubation, decentralization and infrastructure solutions, and more. For more information, visit: https://www.binance.com
