Quality Assurance - Performance Tester (50011) in Basingstoke

InfoSum is the world’s leading data collaboration platform, providing solutions to the world’s largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritise consumer privacy. Our vision is to unlock data’s limitless potential, by enabling the world’s data to be connected but never shared. As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo.

The Engineering department at InfoSum is dedicated to delivering high-quality, innovative software solutions that meet the needs of our customers and drive the success of our organization. We strive to leverage cutting-edge technologies, best practices and collaborative teamwork to develop scalable, reliable and user-friendly software products.

As a member of the QA team with responsibility for performance testing, you will design, build, and maintain scalable high-value performance assessment tests that reduce performance risk for InfoSum’s data collaboration platform. You will work closely with cross-functional teams, including frontend engineers, backend engineers and infrastructure teams, to identify areas for testing and deliver robust and efficient solutions. This role requires expertise in performance test design, execution and reporting to a team of engineers, and reporting findings to senior management. The focus on performance must be balanced with the needs for cost sensitivity, security and reliability.

• Design and implement scalable, high-value performance tests that support engineering needs.
• Identify and test performance bottlenecks to ensure smooth operation under high loads.
• Maintain security best practices to protect data and ensure compliance with industry regulations.
• Develop automated testing strategies to monitor performance and system reliability.
• Provide long-term performance analysis records and reports.
• Work with product, backend, frontend and infrastructure teams to ensure seamless integration and deployment of automated performance tests.
• Provide performance testing mentorship to the QA team and contribute to team knowledge sharing.
• Work with the teams to implement monitoring and logging solutions to proactively detect and address issues in production.
• Stay updated on emerging technologies and apply best practices to improve system efficiency and maintainability.

• Understand and comply with InfoSum’s security and privacy policies, maintaining a strong focus on information security in all backend-related activities.

• 5+ years of experience in performance testing, with expertise in relevant tool suites.
• Understanding of distributed data-driven systems, microservices architecture, and RESTful APIs.
• Experience with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes).
• Knowledge of scalability strategies, microservices architecture, load balancing, caching, batch processing and event-driven architectures, in particular Kafka.
• Strong experience with CI/CD pipelines and automated testing to ensure reliable deployments.
• Excellent problem-solving skills with the ability to diagnose and resolve complex technical issues.
• Strong collaboration and communication skills to work effectively in a cross-functional team.

A competitive salary based on your experience and ability to perform in role. Salary sacrifice schemes with employer contribution. 25 days annual leave (excluding bank holidays) + a day off for your birthday + 2 Volunteering days. Private medical insurance. Life assurance - 4x your base salary. Fantastic corporate discounts and mental wellbeing support, including a top of line EAP. Enhanced Maternity, Adoption and Share Parental Leave. We have fantastic offices in Basingstoke and London complete with catered lunches 2 times a week. We also reward our teams with monthly socials, 4pm finishes on a Friday and 3pm Fridays finishes during the summer months of June, July and August, 3 extra days off during the Christmas holidays and a culture built on recognition, collaboration and success.