Senior Full-stack Test Engineer (Manual, Automation)

Execute all testing activities to improve product quality, work closely with the team (developers, business analysis, customer service, operation, etc.) to deliver the product success Address the test automation needs in a methodical, detail-oriented manner with the help of robust analytical skills and problem-solving capacity Automate functional, regression and/or performance acceptance tests Have complete responsibility to enhance end-to-end automated test coverage Participate in sprint planning and work closely with the Scrum team to analyze requirements and provide necessary test recommendations (such as Feature Testing, Smoke Testing and Regression Testing in both manual and automation) Perform other tasks assigned by the line manager. Qualifications General requirements Bachelor’s degree in IT, Computer Science or a related field. Likely having 5+ years of experience in software testing depending on how fast your learning and developing technical capability Able to self-learn and quickly adapt to new technologies Familiar with the Agile development methodologies Hands-on experience in leading test teams and managing sprint-based manual and automation testing tasks. Able to perform tasks under high pressure Upper-Intermediate English (verbal and written), able to work directly with clients. Technical requirements: Good domain knowledge of software development process, especially the software testing process Strong experience in manual testing (requirement analysis, test strategy, test approach, test plan, test techniques including black box, risk-based, exploratory, Non-UI testing, etc.) Hands-on experience testing web UI and APIs (Postman or similar). Working knowledge of test automation with Selenium, Playwright or Katalon, plus basic coding in Java, C#, JavaScript or similar. Experience in using tools: Postman, Git, IntelliJ IDEA, etc. Nice to have BDD frameworks (Cucumber, SpecFlow); CI/CD (Jenkins, GitLab, GitHub Actions). Experience in Performance testing Knowledge of design patterns. Proficient daily use of AI coding tools (Copilot, Cursor, Claude Code) across the full SDLC Able to decompose complex tasks, provide effective context, and apply chain-of-thought and multi-step prompting workflows Experience with agentic workflows and AI-driven development frameworks Hands-on experience integrating AI tools with other systems via MCP (Model Context Protocol) or equivalent Awareness of emerging AI tools and willingness to evaluate and adopt new capabilities Perks You'll Enjoy Working in one of the Best Places to Work in Vietnam Building large-scale & global software products Working & growing with Passionate & Talented Team Diverse careers opportunities with Software Services, Software Product Development, IT Solutions & Consulting Attractive Salary and Benefits Performance appraisals every year and performance bonus Onsite opportunities: short-term and long-term assignments in North American (U.S, Canada), Europe, Asia. Flexible working time Various training on hot-trend technologies, best practices and soft skills Premium healthcare insurance for you and your loved ones Company trip, big annual year-end party every year, team building, etc. Fitness & sport activities: football, tennis, table-tennis, badminton, yoga, swimming… Joining community development activities: 1% Pledge, charity every quarter, blood donation, public seminars, career orientation talks,… Free in-house entertainment facilities (foosball, ping pong, gym…), coffee, and snacks (instant noodles, cookies, candies…) And much more, join us and let yourself explore other fantastic things! KMS provides the enterprise execution layer, where work becomes outcomes. We are a global, AI-native technology services company focused on Enterprise Execution. We help enterprises build and modernize applications, create trusted data foundations, put AI into production, and continuously run and improve the systems that execute the work. Founded in 2009 in the U.S., KMS has grown to serve clients worldwide, with locations across the U.S., Vietnam, Poland, and Mexico. We are trusted by technology and business leaders for the quality of our engineering, delivery, and execution. Our mission is to help enterprises move from business intent to measurable outcomes faster — with the control, reliability, governance, and confidence required to scale. At KMS, we believe sustainable growth is built on the success of our clients and employees and on making a lasting contribution to our communities. More about KMS Technology: Website: Linkedin: