QA Engineer

Puzzle

. Plan and execute exploratory, functional, regression, API, and mobile testing .

Posted 10/9/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Quality Assurance and Quality Engineering with a strong focus on exploratory and automated testing across mobile applications and APIs. Proficient in integrating automated tests into CI/CD workflows while ensuring high-quality standards and effective collaboration with cross-functional teams.

Highest-signal resume keywords

Quality AssuranceAutomated TestingAPI TestingCI/CD WorkflowsExploratory Testing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Quality AssuranceAutomated TestingAPI TestingMobile Application TestingProgrammingTest AutomationDebuggingTest Data ManagementRegression TestingAccessibility Testing

Soft Skills

Analytical SkillsProblem-SolvingCommunicationCollaborationIndependence

Tools & Technologies

GitCI/CD ToolsAI-Assisted Coding ToolsMobile Automation FrameworksTesting Infrastructure

Industry Keywords

Quality EngineeringSoftware TestingUser JourneysRelease PlanningDefect Reporting

Tech Stack

Tools & technologies

CloudDistributed Systems

About the role

Key responsibilities & impact

Plan and execute exploratory, functional, regression, API, and mobile testing
Test across multiple devices, operating systems, browsers, and network conditions
Identify high-risk areas and prioritize testing based on user and business impact
Validate critical user journeys and verify fixes before releases
Develop and maintain automated tests for mobile applications, APIs, and platform services
Integrate automated tests into CI/CD workflows
Investigate flaky tests and maintain reusable test data and testing infrastructure
Identify, document, communicate, and verify defects with reproduction steps and evidence
Partner with engineers to investigate issues, identify root causes, and prevent recurring defects
Participate in release planning and readiness reviews
Define and communicate release risks, unresolved defects, testing gaps, and release criteria
Partner with Product and Engineering to define acceptance criteria and improve testability
Collaborate with Support and Trust & Safety on customer-reported issue patterns
Contribute to accessibility, performance, security, and reliability testing
Establish QA processes and best practices as the engineering organization grows
Report directly to the Head of Engineering as an individual contributor
Work closely with Mobile, Web, Backend, Product, Support, and Trust & Safety teams
Establish regression coverage, integrate stable automated checks into development and release processes, and measure quality improvements
Learn the product, architecture, release process, and critical user journeys during the first 90 days
Automate priority regression scenarios, improve test reliability, and establish defect reporting practices
Integrate release-quality checks into CI/CD and recommend future QA automation and process improvements

Requirements

What you’ll need

3+ years of experience in Quality Assurance, Quality Engineering, or Software Testing
Strong experience with both exploratory testing and automated testing
Experience testing mobile applications and APIs
Programming experience sufficient to design, write, debug, and maintain automated tests
Working knowledge of Git, code review, and CI/CD workflows
Experience developing software and automated tests both with and without AI-assisted coding tools
Ability to effectively use generative AI and coding assistants while maintaining ownership of the resulting code
Strong understanding of how to review, test, debug, and validate AI-generated code
Ability to identify potential security, reliability, and maintainability issues in AI-assisted development
Strong analytical and problem-solving skills
Excellent written and verbal communication
Ability to work independently while collaborating effectively with cross-functional teams
Protect proprietary code, credentials, customer information, and other sensitive data when using AI tools
Experience testing social, creator, media, or consumer applications (nice to have)
Experience with real-time features such as messaging, notifications, feeds, or live interactions (nice to have)
Experience testing monetization, subscriptions, payments, or creator payouts (nice to have)
Experience with mobile automation frameworks (nice to have)
Experience with API testing and service-level automation (nice to have)
Experience working with cloud-based applications and distributed systems (nice to have)
Familiarity with accessibility and performance testing (nice to have)
Experience establishing QA processes within a growing engineering organization (nice to have)

Benefits

Comp & perks

Competitive Salary: Earn a USD salary that matches your skills and experience
Paid Time Off: Generous PTO to support your work-life balance and recharge
Health Insurance Subsidy: Financial assistance to support your healthcare coverage
Annual Salary Reviews: Structured annual evaluations to recognize and reward performance
Paid Training & Certifications: Continuous support for professional growth and upskilling