SaaS QA Engineer

About us

Ruby Labs builds high-quality, user-focused digital products. We believe that flawless execution starts with ownership — and ends with obsessive attention to detail. If you take pride in spotting what others miss and making sure things ship right the first time, you’ll thrive here.

We’re looking for a hands-on QA Engineer with experience in SaaS web products, payment testing, A/B testing, cross-browser testing, and responsive web QA.

About the Role

You will join a SaaS QR code generator project that helps users create, customize, manage, and track QR codes across different business and personal use cases.

As a QA Engineer, you will be responsible for testing new features, bug fixes, A/B experiments, payment-related flows, analytics tracking, and regression areas before release. This is a hands-on QA role focused on product quality, cross-browser validation, edge-case testing, clear bug reporting, and release readiness.

Key Responsibilities

- Perform manual QA for new features, improvements, bug fixes, and experiments.

- Validate that implementation matches requirements, designs, copy, and acceptance criteria.

- Test UI, UX, business logic, responsiveness, edge cases, error states, loading states, and validation messages.

- Perform exploratory, smoke, and regression testing before releases.

- Test web functionality across major desktop and mobile browsers.

- Identify browser-specific and device-specific issues.

- Test A/B tests and feature-flagged releases before launch.

- Validate experiment behavior, targeting logic, fallback behavior, and related analytics events.

- Test payment, checkout, subscription, billing, and access-related flows.

- Validate successful and unsuccessful payment scenarios, including edge cases.

- Check that key analytics events fire correctly and contain accurate properties.

- Create clear, structured, reproducible bug reports with screenshots/videos, environment details, severity, and impact.

- Retest fixed issues and confirm that bugs are fully resolved.

- Communicate QA status clearly before release: passed, failed, blocked, or passed with known issues.

Required Experience

- 4+ years of QA experience in SaaS, web products, consumer-facing digital products, payments, subscriptions, fintech, or similar environments.

- Strong manual QA experience with web applications.

- Experience with cross-browser and cross-platform testing.

- Experience testing payment, checkout, subscription, or billing flows.

- Experience testing A/B tests, feature flags, experiments, or conversion funnels.

- Experience validating responsive web behavior on desktop, tablet, and mobile.

- Ability to test both product logic and UI/UX details.

- Ability to use browser developer tools, console logs, network requests, cookies, local storage, and basic API checks.

- Ability to write clear, reproducible bug reports.

- Strong attention to detail and ability to catch edge cases.

- Russian language- fluent.

Must Have

- SaaS or web product QA experience.

- Payment or subscription testing experience.

- A/B test or experiment QA experience.

- Cross-browser and mobile web testing experience.

- Understanding of analytics/event tracking validation.

- Strong manual, smoke, and regression testing skills.

- Clear written communication.

- Ability to work independently and proactively identify quality risks.

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Discover the perks of being part of our vibrant team! We offer:

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.

• Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.

• Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.

• Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.

• Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

• Recruiter Screening (40 minutes)

• Technical Interview (90 minutes)

• Final Interview (60 minutes)

At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

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