1. ABOUT COMPANY 

The20 is a Web3 company dedicated to building innovative solutions that drive the evolution of the digital asset ecosystem. By combining blockchain technology, data-driven innovation, and advanced financial technologies, we deliver products and services that empower businesses and individuals to navigate the rapidly evolving Web3 landscape. 

At The20, we foster a collaborative and results-driven culture where innovation is encouraged, ideas are valued regardless of where they come from, and continuous improvement is part of our everyday work. As we continue to grow, we are looking for passionate and talented professionals to join our team and help shape the future of Web3. 

2. ABOUT THE ROLE

We are looking for a Software Tester/QA Engineer to join our team. In this role, you will be responsible for testing and ensuring the quality of multiple web-based products across different domains, including SaaS, productivity tools, HR platforms, crypto, DeFi, and trading applications.

You will work closely with Developers, Product Managers, Designers, and other team members to identify issues, validate new features, prevent regressions, and ensure a reliable user experience across our products.

This is an excellent opportunity for someone who is detail-oriented, proactive, and passionate about software quality, and enjoys working with multiple products and fast-changing requirements.

3. RESPONSIBILITIES

• Perform manual testing for web applications across multiple projects.

• Analyze requirements and prepare test scenarios, test cases, and checklists.

• Test new features, bug fixes, and product changes before release.

• Perform functional, UI/UX, responsive, regression, integration, and cross-browser testing.

• Identify, reproduce, document, and track bugs with clear steps and supporting evidence.

• Verify bug fixes and perform regression testing to ensure existing features are not affected.

• Test different user flows, edge cases, invalid inputs, and unexpected user behaviors.

• Perform basic API testing and validate request/response data when required.

• Test applications across different browsers, screen sizes, and devices.

• Work closely with developers to investigate and resolve issues.

• Proactively identify potential product risks and suggest improvements to product quality and user experience.

• Maintain testing documentation and communicate testing status and results to the team.

• Support release testing and post-release verification when necessary.

4. REQUIREMENTS

• Mandatory requirements

  • 2+ years of experience in Software Testing/QA, preferably with web applications.

  • Strong understanding of software testing principles and QA processes.

  • Experience with manual testing, including functional and regression testing.

  • Good attention to detail and ability to identify edge cases.

  • Ability to clearly reproduce, describe, and prioritize bugs.

  • Comfortable testing products with changing requirements and multiple projects simultaneously.

  • Basic understanding of HTTP, API, JSON, and browser DevTools.

  • Ability to communicate effectively with developers and product teams.

  • Proactive mindset with a strong sense of ownership for product quality.

• Preferred requirements (Bonus)

  • Experience testing crypto, DeFi, DEX, perpetual trading, or financial products.

  • Experience with API testing tools such as Postman.

  • Experience with SQL/database testing.

  • Familiarity with automation testing such as Playwright, Cypress, or Selenium.

  • Experience testing Web3 wallets, blockchain transactions, token balances, or trading flows.

  • Experience testing complex dashboards, data visualization, or real-time data.

  • Experience working in a startup or fast-paced product environment.

• Qualifications:

• Degree: Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field is preferred.

• English Level: Intermediate (B1-B2) or above, with the ability to read technical documentation and communicate with the team.

• Certification (if any): ISTQB certification is a plus, but not required.

• Tools or Technical Skills 

  • Browser DevTools

  • Postman / API testing

  • Jira / Linear / similar issue tracking tools

  • Git / GitHub

  • Basic SQL

  • Familiarity with Chrome, Safari, Firefox, Edge

  • Basic knowledge of Playwright / Cypress / Selenium is a plus.

5. BENEFIT

• Salary range: Competitive monthly salary ranging from VND 12,000,000 - 15,000,000, commensurate with qualifications, experience, and performance.

• Monthly lunch allowance of VND 700,000.

• 1-month probation period with 85% of the official salary.

• Public holiday and Tet bonuses, and 13th-month salary (or more) in accordance with the Company's policies.

• Full participation in Social Insurance (SI), Health Insurance (HI), and Unemployment Insurance (UI) upon successful completion of the probation period.

• Annual company trip, team-building activities, periodic health check-ups, and other attractive employee benefits.

• High-growth startup environment with strong learning opportunities

• Young, ambitious, and highly adaptive team culture

6. GENERAL INFORMATION

• Office: 27 Le Van Luong, Thanh Xuan, Hanoi

• Working time: 8:30 - 17:30, Monday to Friday, 2 Saturdays per month. (8:30 - 16:30)