Senior Performance Testing Engineer

Who We Are

We're a leading SaaS provider, offering technology solutions to help businesses streamline operations, improve efficiency, and drive growth. We deliver customisable platforms that empower organisations to optimise their workflows and stay competitive. Our goal is to support our clients' success with scalable software tailored to their unique needs.

If you'd like to find out more, watch our short video.

What you need and the hats you will wear

The Senior Performance Test Engineer is responsible for planning, designing, and executing performance tests to ensure that the platform and the applications meet the required performance criteria. This role involves collaborating with development teams, analyzing performance bottlenecks, and providing solutions to enhance system scalability, reliability, and responsiveness.

Key responsibilities

• Performance Testing Strategy
• Develop and implement performance testing strategies and frameworks for applications and systems, including microservices.
• Define performance test objectives, metrics, and key performance indicators (KPIs).
• Test Planning and Execution
• Design, create, and execute performance test cases, scenarios, and scripts using performance testing tools (e.g., JMeter, LoadRunner, Gatling).
• Simulate user loads to analyze the platform behavior under peak conditions.
• Conduct performance testing for microservices, focusing on API latency, throughput, and reliability under different loads.
• Evaluate the scalability of individual microservices and their interactions under various conditions.
• Microservice Performance Testing
• Analyze and test the performance of microservices in distributed architectures.
• Ensure proper functioning of service discovery, load balancing, and communication protocols (e.g., REST, gRPC, WebSocket).
• Evaluate the impact of dependencies and latency across microservices.
• Optimize resource usage, including CPU, memory, and I/O for microservices.
• Performance Analysis
• Monitor, collect, and analyze performance data during tests.
• Provide detailed performance reports, including root cause analysis, trends, and recommendations.
• Use tools and frameworks like Prometheus, Grafana, and ELK stack to monitor microservices performance metrics.
• Collaboration and Communication
• Work closely with developers, architects, and product managers to ensure performance considerations are incorporated early in the development lifecycle.
• Communicate performance test results and recommendations effectively to technical and non-technical stakeholders.
• Tool Management and Scripting
• Maintain and enhance performance testing tools and frameworks.
• Develop and optimize test scripts for microservices using tools like JMeter, Postman, or custom scripts in Python, Java, or similar.
• Continuous Improvement
• Stay updated with emerging trends and best practices in performance and microservices testing.
• Provide mentorship and guidance.
• Proactively suggest improvements to development and testing processes to enhance application performance.

What we're looking for

• Education:
• Bachelor’s degree in Computer Science, Engineering.
• Experience:
• 8+ years of experience in performance testing or a related role.
• Proven experience with performance testing tools such as JMeter, LoadRunner, Gatling, or similar.
• Experience in testing microservices and distributed systems.
• Technical Skills:
• Strong knowledge of system architectures, microservices, and APIs (REST/gRPC, WebSocket).
• Proficiency in scripting languages such as Python, Java, or JavaScript.
• Familiarity with monitoring tools (e.g., Prometheus, Grafana, Dynatrace, AppDynamics, New Relic).
• Hands-on experience with CI/CD tools and processes.
• Understanding of cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization tools (e.g., Docker, Kubernetes).

Benefits to help our people thrive 

At Genesis, we recognize that taking care means looking after the whole self, both at and away from the office. We are committed to enhancing the well-being of our team members through flexible, individualized benefits.

· Competitive salary and a stake in the company’s success through a defined bonus

· 18 days per year plus public holidays.

· Top-level covers private medical healthcare insurance covering Dependents

· A healthy remote working allowance to help set up your home office

· A dedicated training allowance with access to a great portfolio of training providers

· An annual wellbeing allowance to spend on anything that will benefit your mental and/or physical wellbeing

· Hybrid Working – We encourage you to work from the office a minimum of one or two days per week

· A stake in our success through our Employee Equity Scheme 

We are only accepting applications from candidates directly. Given application volumes, we do not require CVs from recruitment agencies.