QA Engineer

ITRex Group

. Perform manual testing of mobile applications and APIs, including REST and GraphQL .

Posted 11/12/2026full-timeRemote • Poland, SerbiaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in manual testing of mobile applications and APIs, with a strong focus on quality assurance processes within Agile environments. Proficient in designing and maintaining test documentation while utilizing AI tools to enhance testing efficiency.

Highest-signal resume keywords

Manual TestingMobile Applications TestingAPI Testing (REST, GraphQL)Test Documentation DesignAgile Methodologies

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Manual TestingMobile Applications TestingAPI Testing (REST)API Testing (GraphQL)Test Documentation DesignBug Tracking SystemsTest Management SystemsSDLC UnderstandingTraffic SniffersAI Tools for QA

Soft Skills

Excellent Communication SkillsAttention to DetailCollaborative MindsetSelf-DrivenAbility to Work Under Pressure

Tools & Technologies

Charles ProxyFiddlerProxymanZephyrQaseTest Trello

Industry Keywords

Quality AssuranceAgileScrumKanbanCross-Functional Collaboration

Tech Stack

Tools & technologies

AndroidGraphQLiOSSDLC

About the role

Key responsibilities & impact

Perform manual testing of mobile applications and APIs, including REST and GraphQL
Design, execute, and maintain comprehensive test documentation
Use AI tools as part of the QA toolkit to enhance test coverage and efficiency
Collaborate with developers, product managers, and stakeholders to ensure product quality
Define and establish QA processes and best practices for new projects
Act as the sole QA when required, owning the end-to-end testing process
Contribute as part of a QA team, ensuring alignment with shared goals and standards
Work with product requirements during backlog refinement
Participate in Agile ceremonies and provide input on quality-related risks

Requirements

What you’ll need

3+ years of hands-on QA experience
Strong experience in manual testing across mobile applications (iOS/Android), web applications, and APIs (REST, GraphQL, etc.)
Experience working with traffic sniffers / proxy tools such as Charles Proxy, Fiddler, Proxyman, etc.
Hands-on experience applying an agentic approach across the SDLC, e.g., Claude Code and AI agents for test design, execution, and defect analysis
Ability to design, execute, and maintain comprehensive test documentation
Familiarity with bug tracking and test management systems, e.g., Zephyr, Qase, Test Trello
Understanding of SDLC and QA’s role within Agile, Scrum, or Kanban environments
Excellent verbal and written communication skills
Product-oriented and collaborative mindset in Agile cross-functional environments
Strong attention to detail and ownership of quality
Ability to stay effective under deadlines and production pressure
Self-driven and proactive, able to operate independently within a defined framework
English proficiency: Upper-intermediate and above

Benefits

Comp & perks

Remote flexibility: Work where and how you work best - we trust you to deliver
Fair compensation: Competitive salary + benefits that matter (medical, learning)
Ownership opportunities: See a problem worth solving? Own it. We back smart risks over bureaucratic safety
AI enhancement: We leverage AI to make you faster and stronger - complementing your abilities, not replacing them
Learning investment: English classes, professional development
Career progression: Real paths up, not just sideways shuffling
Responsive teammates: No ignored Slacks, no "not my problem" attitudes
Supportive culture: When you're stuck, people help. When things break, we fix them together
Human connections: Regular meetups, tech talks, and actual relationships beyond work