23 of 23 Performance Testing Jobs in the South East

Performance Test Engineering Consultant Join Ten10s Expert Consultancy Team Location: Hybrid (London office + client site travel as required) Employment Type: Fixed Term Contract Start Date: February 2026 The Opportunity Are you an experienced SDET with Performance Test experience looking to take the next step in your career within a dynamic and growing consultancy? At Ten10 , we are … looking for a talented SDETs with Performance Test Engineering experience to join our highly skilled consultancy team. This is an exciting opportunity to work on diverse and challenging client projects, ensuring the delivery of high-performing applications and systems. About Ten10 Ten10 is the UKs leading independent Quality Engineering & Software Testing consultancy. We work with a range of … Our consultants are at the heart of what we do, and we invest in their development to ensure they remain at the forefront of industry trends. Role Responsibilities Deliver performance testing solutions to a range of clients, ensuring systems are scalable, reliable, and performant. Design, implement, and execute performance test strategies , including load, stress, scalability, and endurance More ❯

challenges and mentoring others, this could be your perfect next step. Why Join Ten10? Were proud to be one of the UKs leading independent consultancies for Quality Engineering, Software Testing, RPA, and DevOps . Our mission is simple: help our clients achieve their goals by implementing innovative, high-quality engineering practices. Heres what makes us stand out: Challenging Projects … aspirations. Flexibility: Our hybrid working model gives you the balance you need. The Role As a Principal Technical Consultant , youll bring your extensive knowledge of software engineering, automation, and performance testing to create bespoke solutions for our clients. Youll also take a leadership role, guiding your team to success and leading by example. What Youll Be Doing Design … and Develop: Build and support automation or performance test frameworks using the most appropriate solutions. Whether open source or commercial, or a combination . Collaborate with Clients: Work closely with clients to understand their requirements and create tailored QA strategies. Provide Expert Insights: Conduct technical QA health checks to assess and improve client approaches to automation or performance More ❯

Data Test Automation Technical lead Location: London, UK 6 Months Contract or FTC 2 days onsite work per week • Overall Exp years, Relevant exp years. • Excellent experience in testing of data • Experience in creating data testing frameworks from scratch • Provide guidance to the team for testing of data demonstrating real experience in technology and processes • Technology experience … o JMeter – for API testing (Load and Performance testing experience not needed) o Groovy o Pyspark – Should be able to write scripts for data processing o Data Lakes o Kafka Streamsets o AWS cloud Requirements • Overall Exp years, Relevant exp years. • Excellent experience in testing of data • Experience in creating data testing frameworks from scratch … Provide guidance to the team for testing of data demonstrating real experience in technology and processes • Technology experience o JMeter – for API testing (Load and Performance testing experience not needed) o Groovy o Pyspark – Should be able to write scripts for data processing o Data Lakes o Kafka Streamsets o AWS cloud More ❯

team. Working in an Agile/Kanban environment, you will collaborate closely with developers and product owners, write and review automated test cases, and help drive best practices in testing and quality assurance. You'll also play a role in evaluating and implementing tools such as Playwright as the team transitions from Selenium. This is a hybrid role, primarily … or Selenium Write clear, maintainable test scripts Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature test suites Conduct exploratory testing during feature development Review test automation code and contribute to internal test tools and utilities Support performance testing efforts using tools such as Azure Load Testing, JMeter, or Locust Contribute to backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left More ❯

team. Working in an Agile/Kanban environment, you will collaborate closely with developers and product owners, write and review automated test cases, and help drive best practices in testing and quality assurance. You'll also play a role in evaluating and implementing tools such as Playwright as the team transitions from Selenium. This is a hybrid role, primarily … or Selenium Write clear, maintainable test scripts Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature test suites Conduct exploratory testing during feature development Review test automation code and contribute to internal test tools and utilities Support performance testing efforts using tools such as Azure Load Testing, JMeter, or Locust Contribute to backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left More ❯

modifying complex software systems in line with agreed standards and best practices. Estimating engineering tasks and offering guidance to peers to ensure efficient delivery. Quickly and effectively debugging and testing complex code to maintain performance and reliability. Mentoring junior team members, offering support, sharing knowledge, and helping them grow in their roles. Skills we would love you to … Solid understanding of RESTful APIs and token-based authentication (e.g., JWT). Familiarity with popular frontend development tools such as Node, NPM, CI/CD pipelines, DevOps practices, and performance testing frameworks like Jest and React Testing Library. Experience with performance and memory tuning using relevant tools. What we offer Join us and you'll find … please speak to your recruiter to discuss in more detail, including days in the office and at home. Competitive Bonus Scheme - All colleagues are eligible for our annual 4Cs performance bonus, which is usually paid in March. The scheme is based on Hastings' performance against our business goals and your own personal performance. Physical Wellbeing - We like to More ❯

for a Lead Software Developer in Test (Lead SDET) to play a pivotal role in that transformation. If you're a seasoned technologist with a deep understanding of software testing and automationand the leadership skills to mentor teams and guide clients through complex challengesthis is your opportunity to lead from the front. ?? Important: All applicants must be eligible for … SC clearance. Why Ten10? Were one of the UKs leading independent consultancies in Quality Engineering, Software Testing, DevOps, and RPAtrusted by major clients across finance, government, and enterprise. What sets us apart is our people, our passion for innovation, and our drive to deliver meaningful results. Heres why youll love being part of our team: Strategic Impact: Youll shape … testing strategies and automation approaches across complex, high-profile client engagements. Career Progression: Grow your leadership skills with tailored development opportunities and support for certifications. Culture of Excellence: Work with talented peers who thrive on solving real-world problems with modern technologies. Work-Life Balance: Enjoy hybrid working and a flexible approach that supports your lifestyle. About the Role More ❯

Software Innovation London - 3 days a week in office | Initial 12m contract | Day rate inside IR35 Join a global technology leader at the forefront of software innovation, where quality, performance and reliability drive everything they do. This is an exciting opportunity for a QA Engineer with a passion for automation, testing excellence and continuous improvement to help shape … world-class digital products. You'll work closely with development and product teams to design and execute robust testing strategies, automate quality processes and ensure the smooth delivery of complex software systems to global customers. What You'll Be Doing: Championing a culture of quality, performance and teamwork across projects Collaborating with business analysts and developers to identify … and resolve potential issues early Designing detailed test plans, user scenarios and validation procedures Managing and configuring test environments and tools Executing manual and automated testing (JavaScript/TypeScript) Troubleshooting and validating new software releases, including end-user documentation Leading automation best practices and mentoring others on quality standards What You'll Bring: Experience in QA and software testing More ❯

SDET 6 Month contract £425 - £475 per day Outside IR35 London/Hybrid - 2x days a week in London Design and develop automated testing frameworks and strategies with Selenium and Playwright using Javascript/Typescript. Create and maintain test scripts utilising WebDriver, Selenium, Gherkin, and Cucumber Performance testing using JMeter Write clear and concise test cases and … scenarios using JSON data structures to validate application features. Conduct thorough testing of user interfaces, ensuring compliance with HTML and CSS standards. Collaborate with developers and product teams to define testing requirements and assist with continuous integration and delivery (CI/CD) practices. Utilise Fetch API to automate interactions with web services and validate data flows. Perform exploratory … testing and contribute to the overall improvement in quality assurance processes. Identify and document defects and work closely with engineering teams to drive resolution. Mentor junior team members and provide expertise in test automation best practices. Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and More ❯

tolerant data pipelines that process millions of operations daily. Collaborate with front-end developers to integrate user-facing elements with server-side logic. Develop and maintain APIs, ensuring high performance and responsiveness. Contribute to database design and implementation (PostgreSQL). Improve the system's throughput and incorporate performance testing into our CI pipelines. Scale services horizontally. Contribute … make fault-tolerant applications. Experience with containerization technologies (Kubernetes, Docker). Strong familiarity with database systems, particularly PostgreSQL. Comfortable using AWS and cloud computing platforms. Solid understanding of the testing pyramid, specifically unit, integration, and E2E tests. Readiness and desire to participate in code reviews. Familiar with AI tools like Claude Code. What's on Offer? Work within a More ❯

Zscaler, Netskope, Prisma Access, Cloudflare One, etc. Translate security architecture principles (Zero Trust, SASE) into actionable user stories, epics, and sprint plans. Collaborate with engineering teams on PoC setup, performance testing, latency/PoP validation, and policy enforcement. Define and measure KPIs, SLAs, and success metrics (e.g., threat coverage, latency impact, policy adherence). Ensure integration of SSE More ❯

support. The role involves supporting project milestones, ensuring effective handover to service, and resolving complex network issues across multiple vendors and domains. You will work with stakeholders, assist with performance testing, and contribute to automation and continuous improvement. What We're Looking For - Network Design Engineer Strong experience with Cisco and Juniper technologies, with certifications such as CCNA More ❯

Engineer with strong expertise in designing and optimising large-scale data engineering solutions within the Databricks Data Intelligence Platform. This role is ideal for someone passionate about building high-performance data pipelines and ensuring robust data governance across modern cloud environments.Key Responsibilities Design, build, and maintain scalable data pipelines using Databricks Notebooks, Jobs, and Workflows for both batch and … streaming data. Optimise Spark and Delta Lake performance through efficient cluster configuration, adaptive query execution, and caching strategies. Conduct performance testing and cluster tuning to ensure cost-efficient, high-performing workloads. Implement data quality, lineage tracking, and access control policies aligned with Databricks Unity Catalogue and governance best practices. Develop PySpark applications for ETL, data transformation, and … such as Azure Data Lake Storage, Key Vault, and Azure Functions. What We're Looking For Proven experience with Databricks, PySpark, and Delta Lake. Strong understanding of workflow orchestration, performance optimisation, and data governance. Hands-on experience with Azure cloud services. Ability to work in a fast-paced environment and deliver high-quality solutions. SC Cleared candidates If you More ❯

Basic Personnel Security Standard checks (BPSS), which are managed by the MBDA Personnel Security Team. What we can offer you : Company bonus : Up to £2,500 (based on company performance and will vary year to year) Pension : maximum total (employer and employee) contribution of up to 14% Overtime : opportunity for paid overtime Flexi Leave: Up to 15 additional days … for flexible working arrangements Enhanced parental leave : offers up to 26 weeks for maternity, adoption and shared parental leave. Enhancements are available for paternity leave, neonatal leave and fertility testing and treatments. Facilities : Fantastic site facilities including subsidised meals, free car parking and much more. The opportunity : Your role will be to define and specify test approaches; identifying any … support the design, integration and validation of test system hardware solutions. Knowledge of test needs and techniques in support of product life cycle development. Experience of Design Proving and performance testing during development. Experience of Environmental and EMC testing during qualification. Strong document writing skills associated with Test Equipment hardware design needs. Experience of managing packages of More ❯

benches (CCS environment) Provide first-line technical support to test ops during execution & anomaly events Participate in test readiness/post-test reviews & non-conformance reviews (NRBs) Support functional & performance testing in environmental campaigns (TVAC, EMC, etc.) Write test reports, close-out documentation and feed into review boards Interface with AIT, design, quality and EGSE teams across the More ❯

plans, and schedules for Oracle Fusion Cloud releases, including the management of Oracle's quarterly updates and P2T refreshes. Oversee all test phases: unit, system, integration, regression, UAT , and performance testing. Manage the creation and maintenance of automated test scripts using tools like Oracle OATS, Selenium, or similar. Coordinate UAT sessions with business users and manage defects through closure … teams for essential patch management and environment maintenance. Conduct release readiness reviews, ensuring compliance with ITIL, SOX , and internal audit requirements. 3. Quality Leadership Establish and monitor KPIs for testing and release quality, driving continuous improvement in test automation and deployment processes. Lead and mentor internal and vendor testing resources, ensuring smooth handoffs and clear communication across a More ❯

an Experimental Data Engineer to join one of the UK's most exciting venture-backed deep-tech start-ups. This fast growing company is redefining the future of high-performance engineered systems and advanced materials, combining world-class engineering with cutting edge data science, proprietary software, and additive manufacturing. Innovation here isn't theoretical - it's hands-on, tested … chance to be part of a team where experimentation, insight, and creativity directly influence real-world technology. As an Experimental Data Engineer, you will design, build, and maintain advanced testing and data acquisition systems. You will configure hardware, integrate sensors, and develop software to collect, process, and visualise complex datasets, turning raw data into actionable insights that drive performance … coding using tools such as Git. Candidates with a PhD or industry experience in Mechanical, Aerospace, Electrical, or related STEM disciplines are highly desirable. Additional experience in embedded electronics, performance testing, or UX design for control and visualisation systems will be a strong advantage. Competitive salary with annual performance-based bonuses * Equity options - share in the company More ❯

pension, BUPA healthcare, investment in training and personal development. Technical Skills: HTML CSS TypeScript React JavaScript object model JavaScript preprocessors eg webpack, Rollup, Babel SCSS/LESS Knowledge of performance testing frameworks Mocha and Jest The company offers a competitive salary, exposure to new technology, career progression and a great working environment with a talented team. Interviews are More ❯

a Senior Systems Engineer to join the SMCS team, where you’ll play a key role in developing next-generation systems and ensuring they meet the highest standards of performance, reliability, and safety. What You’ll Do: As part of the Systems Team, you will: Maintain and manage the requirements database, linking contractual and acceptance details. Lead testing … functionality, ensuring alignment with specifications and quality standards. Support technical analyses, interface management, and reporting to drive system improvements. Contribute to a wide range of systems engineering activities including performance testing, human factors, safety, and information assurance. Mentor and technically lead other engineers, helping them grow and succeed in their roles. About You: To thrive in this role … based on business requirements. Exposure to regulatory and statutory requirements for software products. Hands-on experience across multiple systems engineering disciplines such as Requirements Analysis, System Design, Human Factors, Performance Analysis, System Acceptance Management, Safety, and Security. Ability to work effectively in a large, complex multi-project environment, delivering to tight deadlines under pressure. If you would like to More ❯

party applications as part of a business transformation programme delivering business benefits in the areas of cost and inventory management. You will be responsible for the specification, implementation and testing of application configuration changes, and for the functional design of application customisations, including integrations with other applications. Support integration, acceptance, regression and performance testing with issue investigation More ❯

drive our limitless ambitions. About the role Reporting to the Engineering Director, this role will take responsibility for ensuring quality across our engineering deliverables, with a strong focus on testing processes, automation, and best practice adoption. The QA Manager will work closely with business systems and transformation teams to ensure a consistent and collaborative approach to quality assurance. This … a process aligned to our risk appetite and use of automation across development teams. • Lead and mentor the QA team, fostering a collaborative and supportive environment. • Develop and maintain testing frameworks including automated regression, UAT, and performance testing. • Collaborate closely with Product Managers, Digital Product Designers, Delivery Managers, Engineers and business stakeholders to embed quality early in the … will work with Engineering, QA and the rest of the CGTO team. About you • Proven experience leading QA teams within a fast-paced technology environment. • Strong knowledge of software testing methodologies and automation frameworks. • Experience managing stakeholders and collaborating across cross-functional teams. • Ability to coach and mentor QA professionals, enabling growth and development. • Excellent problem-solving, analytical, and More ❯

ENGINEER – PERMANENT – CRAWLEY West Sussex My client is developing world-class flight simulators that are shaping the future of aviation training. Within these roles you will be delivering high-performance, real-time systems for the aerospace industry. Responsible for overseeing system integration, verification, and validation of advanced flight simulation systems. This role will also involve direct customer interaction for … system acceptance and ensuring the timely resolution of issues as they arise during development, testing, and deployment. Your primary responsibility will be to ensure that flight simulation systems meet rigorous operational standards and customer requirements. You will play a key role in testing, validating, and delivering systems that simulate real-world aviation environments. • System Integration: Lead the integration … develop solutions to ensure seamless system performance. Maintain and optimize system configurations for improved operational efficiency and system reliability. • Verification & Validation: Define and execute test plans to verify system performance, functionality, and safety. Ensure all simulation systems meet regulatory standards and performance metrics required for certification. Develop and conduct test procedures to validate the accuracy and reliability of More ❯

of hardware and software subsystems into cohesive flight simulation systems. Collaborate with multidisciplinary teams to design and execute integration procedures. Diagnose and resolve integration issues, optimizing system configurations for performance and reliability. Verification & Validation Define and execute test plans to verify functionality, safety, and regulatory compliance. Develop and conduct test procedures to validate the accuracy and reliability of flight … acceptance phases. Conduct system demonstrations and customer-specific tests to secure final approval. Provide expert guidance and support throughout the acceptance process. Issue Resolution Respond to issues identified during testing or customer feedback. Lead troubleshooting, root-cause analysis, and technical support to resolve complex system problems quickly. Qualifications & Experience Bachelors degree in Aerospace, Electrical, or Systems Engineering, or a … related field (Masters a plus). Strong understanding of flight simulation systems and components. Proficiency in system integration, hardware/software interfaces, and performance testing. Experience with simulation tools and platforms (e.g., MATLAB, Simulink, RTOS). Familiarity with standards such as DO-178C and DO-254. Excellent written and verbal communication skills and strong analytical/problem-solving abilities. More ❯