QA Engineer — VibeX-Generated Apps (QA QC, Tester)

Top 3 reasons to join us

• Very competitive remuneration package
• Comprehensive Benefits Package
• Empowering your professional journey

Job description

GotoX Vietnam (operated by METACREW). GotoX runs VibeX (vibe-x.app) — one of the world's top-tier vibe coding platforms that generates documents, slides, detail pages, and web apps from a single natural language prompt. TalkX, our AI-assistant-powered messenger, is launching soon. We operate across USA, Korea, and Vietnam as a global AI company.

We don't just use AI — we work with AI as a teammate. Armed with Claude, Gemini, and our own VibeX, each person here creates the kind of impact that traditional teams of ten or more used to deliver.

Role Summary:

• Verify the quality of web and mobile apps generated by VibeX — and turn what you find into platform improvements. You will work directly with global customers from our HCMC office
• You are not a traditional QA Engineer running scripted test cases on a fixed product. You are an AI-powered Quality Operator who owns the full quality loop: from functional testing and bug triage, to pattern analysis of AI-generated outputs, to feeding findings directly back into VibeX's generation pipeline.

KEY RESPONSIBILITIES

App Quality Testing

• Test functionality, UI, responsiveness, performance, and accessibility of apps generated from diverse prompts

• Cross-browser validation: Chrome, Safari, Firefox, Edge

• iOS and Android device testing across real and simulated environments

• Systematically test edge cases: empty inputs, special characters, boundary values, async race conditions

• Evaluate accessibility: screen reader compatibility, keyboard navigation, tab order, ARIA attributes

Bug Reporting & Triage

• Write clear, reproducible bug reports with steps, environment details, expected vs. actual behavior

• Triage issues by severity and business impact — distinguish critical bugs from AI generation limitations

• Identify and flag security vulnerabilities: XSS, input validation gaps, CORS misconfigurations

AI-Powered Test Automation

• Generate AI-powered test cases using Claude, Gemini, or similar tools

• Build regression test scenarios that account for non-deterministic AI outputs

• Develop testing strategies adapted to generative UI — where there is no fixed design spec to compare against

• Automate repetitive validation flows where applicable

Pipeline Feedback & Platform Improvement

• Analyze QA findings to identify systemic patterns in VibeX-generated outputs (e.g., recurring layout breaks at specific breakpoints, consistent logic errors in form handling)

• Translate bug patterns into actionable prompt improvements and generation pipeline recommendations

• Collaborate directly with the VibeX engineering team to feed findings back into model and prompt iteration

• Document and share repeatable QA playbooks with the global team

AI Workflow Innovation

• Continuously discover and integrate new AI tools into your QA workflows

• Develop and refine prompt strategies to reproduce hard-to-replicate AI-generated bugs

• Provide product feedback to the VibeX team based on real testing experience

Your skills and experience

MUST-HAVE REQUIREMENTS

Experience

• Proven hands-on track record in web or mobile app QA — you have found, reported, and triaged real bugs in production environments

• Not just internal tools or staging — real products, real users, real impact

• Experience testing both web apps (cross-browser) and mobile apps (iOS / Android)

Technical Foundation

• Basic understanding of HTML, CSS, and JavaScript — able to read code, inspect DOM, and trace layout or logic issues

• Familiarity with browser DevTools for network, console, and element inspection

• Understanding of fundamental web concepts: HTTP requests, API calls, async behavior, responsive design

AI Capability (Critical)

• Daily, hands-on user of AI tools — for test case generation, documentation, and workflow automation

• Able to demonstrate at least one real piece of QA or technical work produced primarily with AI

• Strong prompt engineering instinct: you know how to get AI to generate useful, specific, and structured test cases

• AI capability is our #1 hiring criterion — more important than years of experience

Language

• English: Able to read and write technical documentation, bug reports, and test cases (required). Speaking proficiency is a plus but not mandatory.

• Japanese or Chinese proficiency is an advantage

Mindset

• Detail-obsessed without losing sight of the big picture — you catch bugs others miss, but always ask "does this matter?"

• Self-disciplined with a strong sense of ownership and responsibility

• Fast iteration: bias toward shipping test cycles quickly, learning, and refining

• Pioneer mindset: thrive in uncharted territory where you co-build the QA playbook with the team

NICE TO HAVE

• Experience testing SaaS, dev tools, or AI-generated products

• Familiarity with vibe coding / no-code platforms (VibeX, v0, Lovable, Bolt, etc.)

• Prior startup or solo project experience where you owned QA end-to-end

• Experience with automation frameworks (Playwright, Cypress, Selenium)

• Background in accessibility testing (WCAG standards)

• Understanding of prompt engineering and how LLMs generate UI/code

What to Submit:

1. Your résumé (PDF preferred)

2. One thing you have built or tested with AI — automation, test case, bug report, script, or any real work that shows how you use AI in practice

Important note: AI capability is the #1 hiring criterion. What you have built and tested with AI matters more than your résumé. Show us the work — that's what counts.

HIRING PROCESS

Step 1 — Application Review: We review your application and get back to you promptly.

Step 2 — Pre-Interview

Assignment

Upon shortlisting, you receive a free VibeX Pro plan and two assignments to complete and submit before the interview. One assignment will involve building and testing a VibeX-generated app. This is not just a test — it's your chance to experience what working at GotoX actually feels like.

Step 3 — Interview We will discuss your assignment, your AI workflow, and real bug cases you have found and resolved.

Step 4 — Decision We will communicate the outcome after the interview.

Why you'll love working here

1. Generous compensation and benefit package

• Attractive salary
• 12-day annual leave and 2 holiday leaves (Mid-Autumn, Christmas)
• 13th month salary 
• Performance Bonus
• Full salary insurance
• Monthly allowance for team activities
• Premium health check-up annually
• Budget for weekly sports activities
• Lunch allowance
• Premium retreats at 5-star destinations.
• Sponsoring budgets for team building activities outside of working hours
• Regularly organizing events such as happy hour and employee birthdays monthly  

2. Empowering growth and skill mastery.

• Large scale products with modern technologies in e-commerce, media, entertainment domains
• Engage in large-scale AI projects for the Korean market with upcoming expansions into the US.
• Work at the forefront of innovation, developing and deploying cutting-edge AI solutions.
• Elevate your expertise through real-world applications and the latest industry trends.
• Stay ahead of the curve with a culture dedicated to practical learning and new tech adoption.

3. Professional and engaging working environment

• AI support Claude Max & Gemini via company account
• Seamlessly connect and work with international partners in Korea and the US via Slack.
• Equipped with the latest Apple M4 chips, dual monitors, and premium ergonomic chairs for maximum productivity.
• Enjoy a comfortable workplace with a casual dress code and a fully-stocked pantry
• A collaborative environment where tech-sharing is regular and support is always just a desk away.