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

Job Description

• Design, implement, and execute performance test plans, including load, stress, endurance, and scalability tests
• Develop and maintain performance test scripts and other tools as required (e.g., JMeter, LoadRunner, NeoLoad)
• 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 with development, QA, DevOps, and infrastructure teams to define performance baselines, validate performance targets, and reduce production performance risks.
• Contribute to continuous improvement of performance testing processes, frameworks, and best practices
  
  

• At least intermediate English communication (working with international clients)
• 2+ years of experience in software testing / quality engineering, including hands-on exposure to 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
  
  

• Good understanding of performance testing concepts, including load, stress, endurance/soak, baseline, and scalability testing
• Hands-on experience with at least one mainstream performance testing tool such as JMeter, NeoLoad, LoadRunner, or equivalent.
• Experience in scripting and parameterization for web/API performance testing using REST, JSON, XML, RegEx, Groovy, JavaScript, Beanshell, or similar technologies
• Familiarity with API and web service testing using tools such as Postman, SoapUI, or similar tools
• Experience using monitoring / observability tools such as Grafana, Splunk, AppDynamics, ELK, Dynatrace, or similar platforms
• Good understanding of key performance indicators, including response time, throughput, latency, concurrency, CPU, memory, and network usage
• Experience in identifying performance bottlenecks across infrastructure, application, and database layers
• Ability to analyze and troubleshoot performance issues across application, database, and infrastructure layers
  
  

• Experience with cloud-based or distributed systems / microservices environments.
• Basic knowledge of database performance analysis, SQL queries, or log analysis.
• Experience integrating performance testing into CI/CD pipelines.
• Exposure to Linux/Unix environments, container platforms, or cloud monitoring tools.
• Experience in performance tuning, capacity planning, or production performance diagnostics.
  
  

• 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…)