Manual QA Engineer

Who this role is best for

Derived from job-description analysis by Serendipath's career intelligence engine.

Skills & requirements

About the role

We are a global IT product company shaping the future of real-time social connection. We have millions of users across North America, Europe, Latin America, and MENA, and we build next-gen mobile and web apps for the live-streaming and social networking niches. The market will exceed $206 billion by 2030, and we are already among the leaders in the industry. Founded in Ukraine, scaling worldwide. Are you in?

About your role: We are looking for a Manual QA Engineer. You'll own the quality of our high-load web products and directly affect product stability, monetization and release speed. The role covers APIs, databases, analytics events, payment flows and A/B experiments across multiple brands and platforms. You'll also be part of an AI-first QA process, using AI tools and agents for test design, test runs and bug investigation, and helping the team improve these workflows.

In this role, you will:

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Perform functional testing of new web features and verify bug fixes (UI, user flows, cross-browser, responsive)

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Run smoke, sanity and regression testing before releases; perform post-release checks on production

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Test analytics and CAPI events: parameters, deduplication, data validation (DevTools, BigQuery)

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Run API checks and prepare test data (Postman, MongoDB)

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Test business logic, A/B experiments and monetization flows (admin panel, feature flags)

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Review requirements, plan testing and assess risks

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Maintain test documentation (Qase, Jira)

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Investigate bugs via console, network and service logs (Lens): client vs backend, root cause

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Work within SCRUM and SDLC, improving testing speed and quality (incl. AI tools)

It's all about you:

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2-3 years of manual QA experience with web applications: UI, API, Web Push, Email

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DevTools: Network (payload, status codes), Console, Application (cookies, Storage, service workers)

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HTTP / REST: methods, status codes, headers, cookies; requests in Postman / curl

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MongoDB (find, aggregate) and BigQuery (SQL): you write queries and prepare test data independently

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CAPI conversions: verification of server-side events (parameters, event_id, deduplication with pixel) via Events Manager / test events

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Test design, SDLC / STLC, TMS (Qase), Jira / Confluence

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Use of AI tools in your work (Claude Code)

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Experience with logs

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Git and IDE (VS Code): clone, switching branches, pull; reviewing changes in MR / diff; running the project locally

• Claude (Claude Code) or other AI tools for test design, test documentation, log and bug analysis

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Ability to verify AI output instead of taking it on faith

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English Intermediate (B1)

Would be a plus

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A/B testing: group distribution, feature flags

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Web Payments: payment providers, test cards, 3DS, recurring, refund

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Basic UI / API automation: JS/TS, Playwright, Postman tests

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Client-side ad tracking

What we offer:

Care and support

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20 paid days off, 15 days off due to sickness, and 6 extra days for family moments that matter

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Up to 10 additional days off for public holidays

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100% medical insurance coverage

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Sports and equipment reimbursement

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Financial and legal support when you need it

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Maternity Recovery Support Allowance

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Position retention and support for teammates who joined the Armed Forces of Ukraine

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Active participation in social initiatives supporting Ukraine

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Team spirit beyond the screen: company marathons, themed masterclasses, and teambuildings people actually look forward to

Comfortable environment

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Fully remote cooperation: our processes are built around it. Kyiv hub is there if you want it

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Modern equipment, or reimbursement for your own setup

Investment in your future

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Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking and streaming niche

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Clear KPI system, so you always know what “good” looks like, no guessing games

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Access to premium AI tools and technologies

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Performance-based reviews and Individual Development Plans (IDPs)

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Reimbursement for professional courses and English classes

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Corporate library, book club, and regular knowledge-sharing events

Hiring process:

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Intro call

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Technical interview

• Final interview

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Reference check

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Offer

Source: United Tech careers (Lever)