About FullStack FullStack is one of the fastest-growing software consultancy companies in the Americas. We deliver transformational digital solutions to top global companies and Silicon Valley startups. As an employee‑first company, we focus on hiring the most talented software designers and developers by creating a positive, respectful, and supportive work environment where they can achieve their greatest potential. Offering life‑changing career opportunities to talented software professionals across the Americas. Building highly‑skilled software development teams for hundreds of the world’s greatest companies. Having delivered hundreds of successful custom software solutions, which have positively impacted the lives and careers of millions of users. Our 4.2‑star rating on GlassDoor. Our client Net Promoter Score of 68, twice the industry average. We’re Most Proud Of Offering life‑changing career opportunities to talented software professionals across the Americas. Building highly‑skilled software development teams for hundreds of the world’s greatest companies. Having delivered hundreds of successful custom software solutions, which have positively impacted the lives and careers of millions of users. Our 4.2‑star rating on GlassDoor. Our client Net Promoter Score of 68, twice the industry average. The Position We're looking to hire a Senior Manual QA Engineer to join our team. You'll work with one of our incredible product teams to build and deliver a product to our clients. What We're Looking For 5+ years of professional experience in manual software testing and quality assurance. Advanced English is required. Successful completion of a four‑year college degree is required. Extensive experience with STLC (Software Testing Life Cycle) and bug tracking tools like Jira or Azure DevOps. Proven experience performing API testing using tools like Postman, Insomnia, or Charles Proxy. Deep experience in database testing, including writing complex SQL queries to verify data integrity. Demonstrated experience testing microservices and event‑driven architectures (EDA). Expertise in designing comprehensive test plans, test cases, and traceability matrices from scratch. Familiar with CI/CD pipelines and understanding how QA integrates into automated deployment workflows. Knowledge of Accessibility testing (WCAG) or Security testing basics is a plus. Ability to work through new and difficult issues and contribute to libraries as needed. Ability to create and maintain continuous integration and delivery of applications. Forensic attention to detail. A positive mindset and a can‑do attitude. Experience working on Agile/Scrum teams. Meaningful experience working on large, complex systems. Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon. Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them. Ability to consistently work 40 hours per week. Nice To Have We’re seeking engineers who are AI‑enthusiastic in their workflow. Professional experience or personal project work with the following is a significant plus: Cursor, Windsurf, or Google Antigravity. Claude Code, Gemini CLI, Codex, or Copilot CLI. What We Offer Competitive salary. Paid time off (vacation, sick leave, parental leave, and holidays). 100% remote work. The ability to work with leading startups and Fortune 500 companies. Health policy with Sura 100% for you and up to 4 primary family members. English classes. Food card. Ample opportunity for career advancement. Continuing education opportunities. FullStack is proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Learn more about our applicants privacy notice. #J-18808-Ljbffr