Performance Test Engineer

KMS Technology is a strategic engineering company helping businesses turn bold ideas into high-impact solutions—faster. Founded in 2009 as a U.S.-based services company, we’ve grown into a global organization with locations in the US, Vietnam, Mexico and Poland. KMS is trusted globally for the quality of our engineering and consulting services. We bring deep expertise in product development and quality assurance, Data & AI-native engineering, and delivery excellence to every engagement. Our mission is to help customers build what’s next—accelerating innovation, crafting brilliant solutions, and creating  real-world impact. At KMS, we believe sustainable growth is built on the success of our clients and employees, and in making a lasting contribution to our communities.

More about KMS Technology:

Website: https://kms-technology.com 

LinkedIn: https://www.linkedin.com/company/kms-technology

• Design, implement, and execute performance test plans, including load, stress, endurance, and scalability tests
• Develop and maintain performance test scripts using NeoLoad (primary) and other tools as required (e.g., JMeter, LoadRunner)
• Translate business requirements and user journeys into realistic performance test scenarios
• Prepare, manage, and maintain test data to support performance testing
• Monitor test execution, collect performance metrics, and analyze results to identify bottlenecks or performance issues
• Provide clear, actionable recommendations to improve application performance and stability
• Support in analysing test results and provide actionable recommendations
• Collaborate closely with development, QA, DevOps, and infrastructure teams to resolve performance issues

General requirements:

• Intermediate or higher English proficiency
• 2+ years of hands-on experience in software testing, with at least 1+ year in performance testing
• Able to self-learn and adapt quickly to new technologies
• Familiarity with the Agile/Scrum development methodologies
• Strong analytical, problem-solving, and troubleshooting skills
• Detail-oriented with a strong commitment to quality
• Positive, collaborative attitude with good communication skills

Technical requirements:

• Experience in performance testing and tuning applications
• Strong hands-on experience with NeoLoad (preferred), plus exposure to JMeter, LoadRunner, or similar tools.
• Experience in scripting and parameterization using REST, JSON, XML, RegEx, Groovy, Beanshell, or JavaScript
• Knowledge of API and web service testing using tools like SoapUI or Postman.
• Familiarity with application monitoring and profiling tools (e.g., Splunk, AppDynamics, Grafana, ELK Stack).
• Understanding of performance metrics (CPU, memory, network, throughput, response time) and ability to analyze them effectively.
• Experience in identifying performance bottlenecks across infrastructure, application, and database layers.

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 Outsourcing, Software Product Development, IT Solutions & Consulting
• Attractive Salary and Benefits
• Annual performance appraisals 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 snack (instant noodles, cookies, candies…)

And much more, join us and let yourself explore other fantastic things!