QA Engineer (Manual, Web Platform)

StellarTech is an international, fast-growing product IT company that builds and publishes subscription-based mobile apps in EdTech. Our Platform team builds the company's own platform: web funnels, payments, subscriptions and integrations with third-party services. It's the core that all our products run on.

We're looking for a QA Engineer to join a team of manual QA engineers. You'll own the quality of Platform functionality in a startup rhythm with short iterations and frequent releases. QA is also where other teams (Monetization, Finance, Product Tech) come first when something looks wrong. So we need a mature specialist who finds the root cause, communicates clearly and helps improve how we work, not someone who only runs test cases.

What you'll do

Test new features end to end during development: frontend, backend, APIs and third-party integrations

Run regression testing before releases and smoke testing on production after each release

Validate business and technical requirements with Product and Engineering before development starts

Investigate defects with logs, API responses and network traffic, and write clear, reproducible bug reports

Be the first line for requests from Monetization, Finance and Product Tech: reproduce the issue, assess severity and escalate with facts

Maintain test documentation in TestRail, Jira and Confluence

Work with the Automation QA team to decide which cases to automate

Must-have

4+ years of manual QA of web applications (frontend, backend, API)

Risk-based test design: you can explain what you test, what you don't, and why

API testing with Postman / Charles and Swagger / OpenAPI

Root cause investigation with Chrome DevTools (HAR, network, storage) and logs

Hands-on with the full release cycle: feature, regression and production smoke testing

You use AI tools (Claude, Cursor or similar) in your daily QA work and critically check what they produce

Experience in a product company or startup with frequent releases

Written English good enough for documentation and bug reports

Ownership and transparent communication: you flag risks and delays early

Nice to have

Payments and subscriptions testing (Chargebee, Adapty, Payrails, trials, taxes, Apple Pay / Google Pay)

Web funnels and A/B experiments

Analytics event validation (Google Analytics, Meta Pixel, GTM dataLayer)

Datadog / Grafana

Testing AI-powered features

Basic Playwright / TypeScript

Why join us

You'll work on a platform that decides how fast a subscription business can grow

AI-first company: AI is being built into the company's work centrally, well beyond generating test cases

No micromanagement, high engineering standards, fully remote

• Hiring process:
• Recruiter screening → Technical interview with the Hiring Manager and a QA engineer →Final interview.
• We move fast: the whole process can take about 1 to 2 weeks.

Interested or know someone who fits? Apply or send us a message.