Senior Fullstack Quality Engineer

Location: Remote - Argentina; Brazil; Chile; Colombia; Costa Rica; Mexico

Department: Technology

Why You'll Love This Role: 

As a Senior Full-Stack QualityEngineer, you will be a critical force in ensuring that mission is delivered through reliable, high-quality software. You will work  alongside talented product engineers to test complex front-end applications powered by cloud-based back-end services, internal LLMs, and third-party AI tools.  The ideal candidate will have strong  experience in test automation, API validation, manual testing, and performance testing, with a proactive mindset and excellent organizational skills. This role requires someone who can deeply understand business and technical requirements and translate them into effective test strategies.

What You'll Be Doing:

• You will own quality end-to-end: from story acceptance criteria all the way to production health monitoring.
• You will perform manual testing for exploratory, regression, and end-to-end scenarios when needed.
• You will review and analyze business and technical requirements to define appropriate test coverage Collaborate closely with developers, product managers, and other stakeholders to ensure quality across the SDLC.     
• You will build API and service-layer test automation from scratch; test APIs both manually (via tools like Postman) and through automated scripts.  
• You will test internally built LLMs and AI-driven features for accuracy, consistency, and edge case behavior.
• Evaluate third-party AI tools and services integrated into the Newsela platform.                                                    

About You:

• 7+ years of software testing and quality assurance experience in a professional engineering environment.
• 4+ years building automated test frameworks and scripts using TypeScript, JavaScript, or Python.                                    
• 4 + years of hands-on experience with WebdriverIO and/or Playwright.                             
• 4+ years working in an Agile Scrum team.                                                                                            
• Demonstrated experience across the full spectrum of testing types: manual, exploratory, regression, integration, API/services, and  database testing.                                                                                                                     
• Experience testing both web applications and mobile apps.                                                                           
• Hands-on experience with AI coding assistants (e.g., Claude Code, GitHub Copilot) as part of your daily workflow. 
• Strong written and verbal communication skills — you can explain a bug to a developer and a risk to a product manager equally well.
• Prior experience in EdTech or consumer-facing SaaS products.     

All offers of employment are contingent upon the successful completion of a background check as part of our pre-employment process.

About Newsela:

Newsela takes authentic, real world content from trusted sources and makes it instruction ready for K-12 classrooms. Each text is published at five reading levels, so content is accessible to every learner. Today, over 3.3 million teachers and 40 million students have registered with Newsela for content that's personalized to student interests, accessible to everyone, aligned to instructional standards, and attached to activities and reporting that hold teachers accountable for instruction and students accountable for their work. With over 15,000 texts on our platform and multiple new texts published every day across 20+ genres, Newsela enables educators to go deep on any subject they choose.

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