19 of 19 Performance Engineer Jobs in London

Performance Test Engineer Permanent | Hybrid | Performance Testing| Scripting skills London or Leeds | Hybrid working model | 50% onsite required Currently SC cleared or SC eligible At Peregrine, were always seeking Specialist Talent that have the ideal mix of skills, experience, and attitude, to place with our vast array … Software Developers in the private sector we are always in search of the best talent to place, now. The role: We are seeking a Performance Test Engineer to shape the future of system scalability and reliability at our client by creating strategies and solutions that make a real ...

Lead Performance Test Engineer ( SC Eligible/SC Cleared ) London, United Kingdom | Posted on 01/09/2026 Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over … commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter. Role Overview We are seeking a Lead Performance Tester/Performance Engineering Lead to provide end-to-end ownership of performance testing and performance assurance across complex digital services. ...

Capital on Tap is seeking a Database Performance Engineer to own performance and scale of our SQL Server estate on Azure. You will join a small, senior, hands‐on team of DBAs and SREs to optimize latency, cost and reliability. You'll own performance tuning ...

Senior GPU Performance Software Engineer, AI/ML Share Senior GPU Performance Software Engineer, AI/ML corporate_fare Google place London, UK info_outline info_outline X In most instances, this position requires in-person interviews as part of the hiring process. Bachelor’s degree … Science or a related technical field. 1 year of experience in a technical leadership role. Experience with hardware/compiler co-design or high-performance computing (HPC). Experience in performance analysis and debugging, improving performance of single-node or multi-node (distributed) systems. Experience ...

Performance Test Engineer Permanent Hybrid Performance Testing Scripting skills London or Leeds Hybrid working model 50% onsite required Currently SC cleared or SC eligible At Peregrine, we're always seeking Specialist Talent that have the ideal mix of skills, experience, and attitude, to place with our vast ...

Hamilton Barnes Associates Limited is seeking a Cloud Performance Engineer to design and optimise high-performance cloud infrastructure for latency-sensitive workloads across AWS and hybrid environments. You will collaborate with cross-functional teams spanning cloud, networking, Linux, and automation to push performance and reliability. Ideal ...

Research is seeking an exceptional NLP Performance Engineer to own large-scale LLM inference performance within our NLP Engineering team at the London HQ. You will profile, optimise and implement techniques to maximise inference throughput and cost-efficiency, collaborating with researchers and infrastructure engineers to shape scalable ...

apply large language models (LLMs) and other Natural Language Processing (NLP) techniques across the firm. We are looking for an exceptional NLP Performance Engineer to join our NLP Engineering team and take ownership of large-scale LLM inference performance. This is a specialist Quantitative Developer role. Like … Quantitative Developers, you will work alongside researchers to bring their ideas to life, with a particular focus on maximising the performance of LLMs. This is a hands‐on, high‐impact role. You will design and implement techniques that improve the performance, cost‐efficiency and capabilities of inference workloads ...

Performance Analyst Rate: Up to £400 per day (Outside IR35) Duration: 12 months + Start Date: ASAP Location: Hybrid - Manchester or London On-site: 1 day every 2 weeks at your local hub We’re partnering with a leading digital consultancy to scale a high-profile delivery team supporting … major Central Government department. We’re looking for an experienced GA4 Performance Analyst to analyse digital journeys, user behaviour and service performance, turning data into clear insights that help improve government digital services. What you’ll be doing Analyse digital performance, web traffic and user journeys using ...

Google LLC is seeking a Senior GPU Performance Software Engineer, AI/ML, to join the ML-Omega team in London. You will help optimize, model, and evaluate GPU systems for benchmarking Google's internal ML workloads and for guiding future Cloud hardware decisions. The role requires deep … experience with ML algorithms, GPU programming, performance analysis, and collaboration with product teams to solve large-scale model performance challenges. #J-18808-Ljbffr ...

rely on it. On the device, close to the metal, we write the runtime software that orchestrates work across the chip and runs performance‐critical ML kernels. This is where performance gets real and the wins compound. Your work directly influences trade‐offs for the silicon, system deployment … compiler. You’ll drive the first accelerator compute runs, evaluating performance on silicon, running early benchmarks, and feeding results back into the hardware and software roadmap. What you’ll do Write and optimise performance‐critical ML kernels in C, with assembly where it matters (RISC ...

Advert Job Title: 4G/5G RAN Performance & Optimisation Expert (ESN) Duration: 06 months with possibility of extension Location: London-Hybrid Why This Role Matters Join us and play a critical role in maintaining our position as a leading UK mobile network and driving our vision … Mobile RAN strategy and ensuring a flawless subscriber experience-particularly for the highly critical Emergency Services Network (ESN). What You'll Be Doing Performance Leadership: Drive 4G/5G ESN performance management, define SLAs/KPIs, and build action plans for continuous performance uplift. RAN Optimisation ...

tech company focusing on AI hardware is seeking an embedded software engineer in London or Bristol to optimize performance-critical ML kernels and develop low-level control paths. The role requires 3+ years of experience in embedded software, strong skills in C and assembly, and a collaborative mindset. … will profile and benchmark for performance improvements, working closely with hardware and software engineers. This position encourages fast-paced development with a focus on maintaining high-quality code. #J-18808-Ljbffr ...

Quant Blueprint LLC is seeking an engineer proficient in low-level systems programming and optimization to enhance our machine learning team. This role centers on optimizing model performance, both for training and real-time inference. Applicants should have experience with modern ML techniques, GPU knowledge, and debugging skills ...

looking for an engineer with experience in low-level systems programming and optimisation to join our growing ML team. Machine learning is a critical pillar of Jane Street's global business. Our ever-evolving trading environment serves as a unique, rapid-feedback platform for ML experimentation, allowing … incorporate new ideas with relatively little friction. Your part here is optimising the performance of our models – both training and inference. We care about efficient large-scale training, low-latency inference in real-time systems and high-throughput inference in research. Part of this is improving straightforward CUDA ...

Luma is seeking an expert GPU optimization engineer to accelerate multimodal transformer workloads. You will profile, tune, and deploy kernel- and operator-level improvements across GPUs, CPUs, and accelerators to maximize training throughput and minimize latency. You will implement fused kernels, leverage tensor cores, and push Triton/CUDA … capabilities, while collaborating on distributed multi-node deployment and performance instrumentation. #J-18808-Ljbffr ...

TOMRA is a global leader in recycling and circular economy solutions and is seeking a Product Expert Engineer in the UK. This greenfield role places you at the heart of deploying advanced RVM technology within a growing UK team to shape how our machines perform in the market. … become the local technical expert, collaborating with service, product, and operations colleagues, analyzing data, guiding deployments, and sharing insights with global teams to drive performance and customer #J-18808-Ljbffr ...

Aquis Exchange in London is seeking a Development Engineer to help deliver high performance, low latency software for global markets. You will work with Product, Infrastructure and QA teams to design, implement and test scalable components that handle large TPS and reliability. The role requires strong C++ (C++11+ ...

leading technology company in the United Kingdom is seeking a GPU Performance Analysis Engineer. This role focuses on developing and validating performance test plans for GPUs, analyzing performance issues, and collaborating with engineers to identify solutions. The ideal candidate will have strong skills in hardware and software … debugging, data analysis, and knowledge of programming languages like Python or C++. Join to influence performance across various products in a high visibility role. #J-18808-Ljbffr ...