On chain Data QA Engineer Job November 2025

As a QA Engineer specializing in On-chain Data, you will play a crucial role in safeguarding the integrity and security of our blockchain ecosystem. Your core responsibilities will include:

• Monitoring the security and consistency of on-chain and critical business data to ensure fund safety across all platforms.
• Proactively identifying, analyzing, and resolving data-related issues, including duplicate entries, missing transactions, and abnormal activities.
• Proposing and implementing optimization suggestions to continuously enhance overall fund security, data accuracy, and operational efficiency.
• Actively participating in all phases of the testing lifecycle, from designing comprehensive test cases and preparing accurate test data to executing tests and developing robust automated testing scripts.

This role offers a unique opportunity to contribute to a pioneering organization at the forefront of Web3 innovation, tackling fast-paced projects with autonomy in a results-driven environment.

We are seeking a highly skilled and proactive individual with a deep understanding of blockchain technologies. Minimum qualifications include:

• A minimum of 3 years of experience in Quality Assurance (QA) or Operations Engineering, demonstrating strong proficiency in automation testing and robust backend testing/coding skills.
• A strong foundational understanding of blockchain and Web3 concepts, familiarity with major blockchain networks, data query methods, fund security logic, account system architecture, transaction lifecycles, and smart contracts.
• Expertise in SQL for testing, with the ability to independently write and execute complex SQL queries for comprehensive data verification.
• Proficiency in Python or Shell scripting, capable of independently processing and validating data efficiently.
• Excellent problem-solving skills and an analytical mindset to diagnose and resolve complex data discrepancies.

Desirable Qualifications:

• Experience utilizing blockchain explorers (e.g., Etherscan, BscScan) or analyzing node logs.
• Familiarity with Agile/Scrum development methodologies.
• Prior experience with Git, CI/CD pipelines, and API testing workflows.
• Background in financial institutions, clearing and settlement systems, or risk control systems.
• Experience in big data middleware testing (e.g., Hadoop, Hive, Spark, Kafka, Flink).

To embark on this exciting journey with Binance, please click the “Apply Now” button below. In your application, detail your experience with on-chain data verification, your proficiency in SQL and Python for data validation, and specifically how your understanding of blockchain and Web3 concepts aligns with ensuring the highest level of data security and consistency. We are eager to learn how you can contribute to our world-class team.

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Q1: What is the application deadline for this position?
The closing date for applications for the QA Engineer (On-chain Data) role is **December 5, 2025**. We encourage early applications.

Q2: Is this a remote or onsite position?
This is an **onsite** position. Binance prides itself on its collaborative environment, though some flexibility regarding work-from-home may be discussed depending on the team’s nature.

Q3: What level of experience is required for this role?
This is a **Mid-Level** position, ideally suited for candidates with at least 3 years of experience in QA or Operations Engineering.

Q4: What are the key technical skills sought for this QA Engineer role?
Key technical skills include strong proficiency in **SQL and Python/Shell scripting** for data validation, alongside a deep understanding of **Blockchain, Web3 concepts, Smart Contracts, and Security protocols**.