Jobs in Belo Horizonte, Brazil

Mojo Trek, an Inc. 5000 company, delivers an unparalleled technology recruitment experience, grounded in transparency and integrity. From midsize technology innovators to Fortune 50 powerhouse corporations, we help our clients build technology teams that make a difference. In addition to our strong presence in the Midwest and New York, we maintain an international footprint that enhances our ability to serve clients on a global scale.

We’re looking for a Senior Agile Tester who thrives in fast-moving, cross-functional environments and is passionate about ensuring quality from concept to deployment. You’ll collaborate closely with front-end developers, designers, and backend engineers to validate user experiences across responsive, content-driven applications built with modern technologies like React, Next.js, and headless CMSs.

Your mission is to advocate for quality across the entire product lifecycle — from exploratory testing and API validation to automation and continuous improvement within an agile delivery model.

• Collaborate with developers, designers, and product owners in agile ceremonies to define and validate acceptance criteria.
• Design and execute test plans for web applications using React / Next.js, ensuring responsive behavior across devices and browsers.
• Test CMS integrations (Contentful, Strapi, Sanity) and validate localization and marketing content workflows.
• Verify API Gateway / BFF layer integrations, ensuring clean data aggregation and performance across multiple channels.
• Conduct exploratory, regression, and usability testing for front-end components built with Tailwind CSS and Storybook systems.
• Validate deployments built via Vite for performance, caching, and build integrity.
• Collaborate with developers to identify, report, and track defects using modern issue-tracking tools (e.g., Jira).
• Contribute to test automation frameworks and CI / CD pipelines for both UI and API test coverage.
• Ensure accessibility, performance, and content accuracy across localized experiences.

• 7+ years of experience in quality assurance or software testing, preferably within agile or scrum environments.
• Strong understanding of frontend architectures (React, Next.js, or similar).
• Experience testing RESTful APIs, CMS integrations, or decoupled web applications.
• Proficiency with modern testing frameworks and tools (e.g., Cypress, Playwright, Postman, Jest).
• Familiarity with design systems and component-based testing (Storybook or similar).
• Strong collaboration and communication skills to work effectively within agile teams.
• Detail-oriented mindset with a passion for continuous improvement and quality advocacy.

• Experience testing Drupal APIs and integrations with headless front-ends.
• Knowledge of Vite builds, SSR, and hybrid rendering performance considerations.
• Exposure to visual regression testing tools like Percy or Chromatic.
• Familiarity with automated cross-browser and device testing suites.

• Opportunity to shape quality practices in a modern, front-end–driven product ecosystem.
• Collaboration with an innovative design and development team using cutting-edge tools.
• Flexible work environment focused on learning, iteration, and delivering exceptional user experiences.