Senior Full-stack Test Engineer

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Senior Full-stack Test Engineer in Others new

KMS Technology
Full time
Email

Others
11/14/2026
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Ho Chi Minh City, Vietnam

Responsibilities

Own test strategy, test planning, test case design, test data preparation, execution, defect management, reporting, and formal sign-off for a primary project.
Advise and unblock testing teams on one or two additional projects and provide hands-on support when delivery is critical or at risk.
Analyze requirements with Scrum teams and recommend feature, smoke, and regression testing approaches.
Act as the project quality point of contact by proactively identifying risks, gaps, and integration dependencies.
Design and execute manual SIT coverage for negative scenarios, downtime and feature-flag combinations, multiple channels, database behavior, business-flow impacts, APIs, and regression cycles.
Create dedicated API test cases and scenario matrices covering response statuses, error conditions, and data variations.
Apply requirement analysis, risk-based, black-box, exploratory, and non-UI testing techniques.
Automate functional, regression, and performance acceptance tests where automation adds value, and maintain stable end-to-end automation coverage.
Mentor junior test automation team members and share testing best practices.

Requirements

Around six or more years of experience in both manual and automated testing, including API, UI, and mobile platforms.
Proven ability to run a project as the primary tester from test planning through formal sign-off.
Hands-on experience leading test teams and managing sprint-based manual and automation testing work.
Strong experience testing APIs and web applications integrated across multiple systems and services.
Strong manual testing skills in requirement analysis, test strategy, test approaches, test planning, and black-box, risk-based, exploratory, and non-UI techniques.
Proficiency in JavaScript or TypeScript; additional programming languages are preferred.
Experience with Katalon, Selenium, Playwright, Cypress, or similar automation frameworks.
Experience with BDD frameworks such as Cucumber or SpecFlow.
Experience with Postman, Git, and IntelliJ IDEA.
Ability to work proactively and independently, manage parallel workstreams under pressure, adapt to new technologies and domains, and communicate in at least intermediate English.
Preferred experience using Copilot, Cursor, Claude Code, agentic workflows, AI-driven development frameworks, and MCP or equivalent integrations.

Benefits

Attractive salary and benefits, with an annual performance appraisal and performance bonus.
Flexible working time and training in emerging technologies, best practices, and soft skills.
Short- and long-term onsite assignment opportunities in the United States, Canada, Europe, and Asia.
Premium healthcare insurance for the employee and dependents.
Company trips, annual year-end parties, team building, and fitness and sports activities.
Community development opportunities, including charity, blood donation, and public seminars.
Free in-house entertainment facilities, coffee, snacks, and other workplace perks.

KMS Technology

KMS Technology provides software product development, quality assurance/testing, and AI engineering services for independent software vendors and enterprises using offshore and nearshore teams. Its consulting-led model spans DevOps, mobile app development, and automated testing, delivered through...

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