10 of 10 Performance Engineer Jobs in England

Product Performance & Test Engineer, Laboratory Lead, COR7303 A rare and exciting opportunity has arisen for a Product Performance & Test Engineer/Laboratory Lead, to join a UK-based R&D and manufacturing organisation driving innovation in sustainable appliance design. The Role The Product Performance & Test Engineer will lead the setup and operation of a … small-scale in-house testing facility. You'll take responsibility for designing test methods, analysing performance data, and ensuring products meet internal targets and international standards. Working closely with the wider product development team, you'll play a key role in driving improvements in efficiency, reliability, and sustainability. The Company This UK-based manufacturer is part of a larger … international group and is known for producing high-performance, user-friendly equipment used in commercial environments worldwide. With a strong investment in R&D and a culture of continuous improvement, they are committed to delivering simple, durable products with reduced running costs and environmental impact. Benefits: 25 days holiday + bank holidays Company pension scheme Ongoing training & development What More ❯

Performance Test Engineer - Defence & Security Locations: Bristol, Manchester, or Leeds (hybrid working model) Salary: £55,000 - £80,000 per annum (depending on experience & clearance level) Security Requirement: Active UK SC or DV clearance Role Overview Join a dynamic Technology & Transformation team working on critical Defence & Security programmes. As a Performance Test Engineer, you'll support assurance … and reliability of complex systems at scale-ensuring performance, resilience, and user satisfaction across mission-critical services. Key Responsibilities Design, execute, and analyse performance test scenarios for large-scale enterprise systems. Work closely with software engineers, operations teams, and stakeholders to define performance requirements and acceptance criteria. Lead or support performance testing in Agile delivery environments … alongside DevOps, QA, and delivery teams. Identify performance bottlenecks, provide actionable insights, and collaborate with technical teams to implement optimisations. Advise on load testing tools and frameworks, simulate realistic production-like loads, and build out continuous testing capabilities. Communicate performance findings effectively to both technical and leadership audiences. Required Experience & Qualifications Active Security Check (SC) or Developed Vetting More ❯

Performance Test Engineer - Defence & Security Locations: Bristol, Manchester, or Leeds (hybrid working model) Salary: 55,000 - 80,000 per annum (depending on experience & clearance level) Security Requirement: Active UK SC or DV clearance Role Overview Join a dynamic Technology & Transformation team working on critical Defence & Security programmes. As a Performance Test Engineer, you'll support assurance … and reliability of complex systems at scale-ensuring performance, resilience, and user satisfaction across mission-critical services. Key Responsibilities Design, execute, and analyse performance test scenarios for large-scale enterprise systems. Work closely with software engineers, operations teams, and stakeholders to define performance requirements and acceptance criteria. Lead or support performance testing in Agile delivery environments … alongside DevOps, QA, and delivery teams. Identify performance bottlenecks, provide actionable insights, and collaborate with technical teams to implement optimisations. Advise on load testing tools and frameworks, simulate realistic production-like loads, and build out continuous testing capabilities. Communicate performance findings effectively to both technical and leadership audiences. Required Experience & Qualifications Active Security Check (SC) or Developed Vetting More ❯

Performance Test Engineer Contract 5 months+ £350 Per day Role Description: To be successful as a Performance Test Engineer, you should have the following skills/experience: • Developing load testing scenarios using tools such as LoadRunner. Performance Center, AppDynamics, Dynatrace, New Relic, Kibana and Splunk. • Analysing performance bottlenecks and capacity limits. • Creating automated performance More ❯

Dynamics D365 Performance Engineer - Outside IR35 A number of D365 Performance Engineers are required for a public sector client. You will have extensive experience of D365 CE/CRM and Power Platform. Skills: D365 CE/CRM Power Platform Azure - IaaS/PaaS services .Net, C#, Javascript, TypeScript Strong knowledge of Performance tuning in D365 implementations … Responsibilities: Focus on owning and managing performance improvements in D365 implementations Design and implement performance tuning strategies Analyse telemetry, logs, and metrics to identify and improve performance in customizations, integrations, and infrastructure. Lead performance testing and optimization initiatives across the CRM platform The role is for 6 months initially and based from home with ad hoc More ❯

exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We are currently recruiting for an Application Reliability and performance Engineer to join our Team. We are seeking a high motivated individual to bring a diverse skill set and proactive mindset to help ensure the stability, efficiency, and … query language and PLSQL Agile principles and ways of working Excellent client-facing communication skills DevOps mindset Excellent problem-solving abilities Automation Core AWS Services & Infrastructure as Code Application Performance Optimisation Additional Information What’s in it for you?: Competitive salary that reflects your skills, experience and potential. Discretionary bonus scheme that recognises your hard work and contributions to More ❯

We believe that a diverse range of perspectives is a requirement for building great products. Join us on our mission and shape the future! Why this role? As a Performance Engineer in the Pre-Training team you will be responsible for optimizing the performance of our advanced language models and systems. Their primary focus is on improving … combines expertise in software engineering, machine learning, and low-level kernel design and development to design robust systems and enhance model performance. You will work on identifying and removing performance bottlenecks, develop cutting-edge training and profiling tools to help Cohere's mission of providing efficient and reliable language understanding and generation capabilities and drive innovation in the field … software for training. Understand architectural modifications and design choices and their effects on training throughput and quality. Write low-level CUDA, triton kernels to squeeze every last bit of performance from our accelerators. Research, implement, and experiment with ideas on our supercompute and data infrastructure. Learn from and work with the best researchers in the field. You may be More ❯

Systems & Performance Researcher/Engineer UK: London - Hybrid Preferred About Brave Brave is on a mission to protect the human right to privacy online. We've built a free web browser that blocks creepy ads and trackers by default, a private search engine with a truly independent index, private AI assistant, latest privacy and security features, and a … Summary Join us at Brave as we redefine the future of online experiences with a range of cutting-edge, top-performing products. We're seeking an experienced Systems and Performance Researcher/Engineer to shape and improve our performance evaluations and optimizations across desktop and mobile. If you're passionate about innovation, privacy, and delivering impactful AI … opportunity to make a difference. We need you to help with a wide range of key products, ranging from our browser ML models, novel applications, on-device AI agents, performance evaluations, and collaborating closely with privacy and security researchers to protect the users from AI risks. About you An ideal candidate will have a mix of skills that include More ❯

everyone. What we do is not easy but you do not take the easy path. We are seeking a highly motivated, innovative and confident individuals to join the GPU Performance Modeling Team; we are a group that is driving advanced exploration for next generation GPU architectures and micro-architectures. In this highly visible role, you will be at the … center of a chip design effort working with all disciplines, with a critical impact on getting high performant products to millions of customers quickly. Description As a Performance Modeling Engineer you will be part of a team that is defining and optimizing Apple's GPU micro-architecture. With others you will seek out areas for improvement while collecting … simulator features and brainstorming novel ideas to boost simulation performance. You'll collaborate with world-class GPU & SoC Architects to steer and improve the implementation of GPU simulators and performance models used for research, performance analysis, and microarchitecture tuning. We also cross-collaborate as a larger architecture and performance team to maintain and improve the simulation environment More ❯

Arm's Userspace Performance team is looking for skilled software performance analysis engineers to join a growing team. Successful candidates will help improve the performance of software running on Arm systems used across the world. About The Team You will join a team of Software Engineers who all share a passion for wanting to stamp their mark … look into large software stacks with sophisticated interactions. We work closely with our tooling teams and try to come up with innovative ways to identify the root causes of performance issues. We interact with different teams across Arm that can help us get more insight into problems we face or help us improve the performance of the workloads … we are working on. Often we will connect with partner companies trying to understand what performance issues they are facing. Our goals include influencing decisions that hardware design teams make to help improve performance of future designs. We expect a professional, hardworking and flexible approach to work, with a flair for creative lateral thinking and problem solving with More ❯