X-FLOW is a mobile game development company established in 2018. We gained recognition after the release of Happy Color , the most popular digital coloring book and one of the most successful ad-driven mobile apps in the world. We take pride in our diverse and talented team and partners, spread across the UK, Cyprus, the Netherlands, and other regions worldwide.
We are looking for a Head of Quality Engineering to own product-level quality for Happy Color and lead the transformation from predominantly manual testing toward a measurable Quality Engineering function. This is not a role focused on coordinating a manual QA pool.
Backend/API QA, Client QA, and FADS QA teams are responsible for testing their respective components. The Head of Quality Engineering leads the Product Quality function, which performs independent product acceptance, validates cross-domain scenarios, controls critical regression and user experience, and provides the final quality assessment before release.
Задачи
Product quality ownership
Own the product-level quality strategy and its implementation roadmap
Define release-readiness criteria and provide an independent assessment of product quality
Take responsibility for acceptance testing of the product as a whole
Validate cross-domain flows across mobile clients, backend services, analytics, advertising, consent, payments, and other integrations
Identify systemic product risks that cannot be detected within a single engineering domain
Require teams to improve builds, test results, documentation, or other quality artifacts when they do not meet agreed standards
Quality Engineering transformation
Lead the transition from predominantly manual testing toward a balanced Quality Engineering model
Build sustainable E2E and regression automation for critical product scenarios
Introduce quality gates into CI/CD pipelines
Improve test environments, test data, reporting, and automation stability
Introduce risk-based testing, shift-left practices, and appropriate AI-assisted QA tools
Reduce regression time and release uncertainty without sacrificing product quality
Product Quality team leadership
Build and lead the Product Quality team responsible for
product acceptance
critical regression
E2E testing
user-experience validation
E2E and regression automation
Hire, develop, and mentor manual QA, automation, and SDET engineers
Assess existing QA engineers and define appropriate development paths based on skills, motivation, and demonstrated results
Establish clear ownership, expectations, and measurable outcomes for every team member
Matrix quality leadership
Требования
5+ years of experience in QA or Quality Engineering
3+ years in a QA leadership or Quality Engineering leadership role
Strong product mindset, with the ability to identify user, business, and systemic risks—not just verify compliance with documented requirements
Proven experience transforming manual testing into an engineering-driven quality function
Experience building or significantly improving E2E and regression automation
Strong understanding of test automation architecture, CI/CD integration, test environments, and quality gates
Ability to review automation approaches, framework architecture, code quality, and engineering practices
Experience testing high-scale mobile applications or games
Strong knowledge of
mobile application testing
backend and API testing
distributed and cross-system scenarios
analytics validation, including Firebase
databases and SQL-based platforms
advertising and attribution systems such as Adjust or AppsFlyer
release and production quality management
Experience working with Android Studio, Xcode, Charles Proxy or similar tools, API clients, and mobile automation frameworks
Strong leadership skills and the ability to influence teams in a matrix structure
Ability to make difficult quality decisions and clearly explain product risks
Russian — fluent
English — Intermediate or higher
Будет плюсом
Experience with ad-driven mobile products
Experience testing monetization, consent, GDPR/CCPA, payments, or analytics
Experience building SDET or automation teams
Experience applying AI tools to testing, test design, defect analysis, or QA operations
Experience working with incident, support, and production data
What Success Looks Like
During the first months, the Head of Quality Engineering is expected to
establish the Product Quality function and its responsibilities
define the interaction between Backend QA, Client QA and Product Quality
introduce transparent product-acceptance criteria
identify critical E2E and regression scenarios
create a prioritized automation roadmap
launch measurable improvements to automation, CI quality gates, and regression speed
provide leadership with a transparent view of product readiness and quality risks
Условия
Competitive salary and benefits package
Opportunity to work with a talented and passionate team in a creative and dynamic environment
Flexible working hours and remote/office work options
Career growth and professional development opportunities
A fun and inclusive company culture that celebrates diversity and creativity
Join us and let’s create great content together!
When you apply for this role, we process your personal data in accordance with our Candidate Privacy Notice ( https://xflowgames.com/candidate-privacy-notice )
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