1 to 25 of 27 Permanent Performance Engineer Jobs in London

Performance Test Engineer

Hiring Organisation
MThree
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
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 ...

Senior Database Performance Engineer - SQL Server on Azure

Location
Greater London, England, United Kingdom
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

Location
Greater London, England, United Kingdom
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

Hiring Organisation
MThree
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 61,000 Annual
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 ...

Latency-Driven Cloud Performance Engineer

Location
Greater London, England, United Kingdom
diversified trading firm, seeks a Cloud Performance Engineer to join the Cloud Performance Team across the firm. You will design cloud/hybrid architectures for latency-sensitive trading workloads and work with AWS, Terraform, Docker and Kubernetes to optimize end-to-end performance. The ideal candidate ...

Cloud Performance Engineer

Location
Greater London, England, United Kingdom
it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. We are seeking a Cloud Performance Engineer to work with technology teams acrossthe firm to build high-performance cloud solutions for trading workloads. You will join theCloud Performance Team, working … alongside cloud engineers, software developers,Linux- and network engineers to optimize performance end to end. The ideal candidate draws on experience in cloud technology, systems engineering, networking and automation. What you will do in this role: Design and implement cloud and hybrid cloud architectures for latency-sensitivetrading workloads. Build ...

Cloud Performance Engineer - AWS, Networking & Automation

Location
Greater London, England, United Kingdom
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 ...

NLP Performance Engineer: Scale LLM Inference for Research

Location
Greater London, England, United Kingdom
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 ...

NLP Performance Engineer

Location
Greater London, England, United Kingdom
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 ...

GA4 Performance Engineer

Location
Greater London, England, United Kingdom
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 ...

Senior GPU AI/ML Performance Engineer

Location
Greater London, England, United Kingdom
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 ...

C++ Performance Engineer

Location
Greater London, England, United Kingdom
Join our Market Making tech team to design and optimise low-latency trading systems, with direct impact on performance, reliability, and scale. We are looking for experienced C++ engineers focused on building high-performance, low-latency systems . You will work across the trading stack, from exchange connectivity … core system components, solving real-time performance challenges and improving system efficiency. The role combines performance optimisation across CPU, memory, and networking with large-scale system design in an environment where code runs directly in production. You will take ownership of critical components, iterate quickly, and deliver production ...

Senior Embedded Performance Engineer

Location
Greater London, England, United Kingdom
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 ...

Principal Performance Engineer: Elasticsearch

Location
Greater London, England, United Kingdom
Elastic, the Search AI Company, is seeking a Principal Software Engineer to join the Elasticsearch Performance team. You will lead architectural and code-level performance initiatives, driving optimizations and benchmarking across distributed systems. Requirements include deep Java internals knowledge, JVM memory management, and experience with profiling tools ...

Senior QA Automation & Performance Engineer (API)

Location
Greater London, England, United Kingdom
Elsevier is seeking a QA Test Engineer to develop and execute automated and performance testing, ensuring delivery of high-quality software. You will collaborate with Product Management, Engineering, Operations, and other stakeholders to meet requirements and drive continuous improvement while contributing to testing initiatives across the organization. ...

Senior C++ High-Performance Engineer - Market Data

Location
Greater London, England, United Kingdom
Project description We are looking for a C++ engineer to design and build high performance, low latency applications that process large volumes of real time data. You will work on systems where microseconds and throughput matter, optimizing every layer from algorithms and data structures to networking … interaction.Compensation for NYC 140000-200000 USD Gross per year based on the interview process results. Responsibilities Design, implement, and maintain high performance C++ services handling high message rates and low latency workloads. Optimize existing components for latency, throughput, and CPU/memory efficiency. Develop and tune networking, messaging ...

Senior QA Automation & Performance Engineer

Location
Greater London, England, United Kingdom
Elsevier in London is seeking a QA Test Engineer to develop and execute automated and performance tests, ensuring high-quality software and services scale. You will collaborate with Product Management, Engineering and Operations to plan testing, report issues, and drive continuous improvement. 3+ years of experience and strong ...

Senior Low-Latency Java Performance Engineer

Location
Greater London, England, United Kingdom
Luxoft is seeking a senior Java engineer to join its global tech team, delivering high-performance, low-latency platforms for real-time processing. You will work on event-driven and reactive systems, optimize JVM performance, and push memory and networking boundaries on Linux. You will apply advanced ...

Embedded Performance Engineer: ML Kernel Optimisation

Location
Greater London, England, United Kingdom
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 ...

GPU Performance Engineer for Multimodal Transformers

Location
Greater London, England, United Kingdom
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 ...

Senior Performance & Automation Test Engineer

Location
Greater London, England, United Kingdom
Pearson is seeking an Advanced Specialist, Quality Assurance Engineer to drive performance, scalability, and reliability of TOpS applications in London, Manchester or Rotherham. You will design, execute, and automate performance tests, analyzing results to identify bottlenecks and collaborating with engineering to ensure responsive, stable systems for high ...

RVM Technical Expert & Performance Engineer

Location
Greater London, England, United Kingdom
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 ...

Low-Latency C++ Performance Engineer - Production Impact

Location
Greater London, England, United Kingdom
will work across the trading stack, from exchange connectivity to core components, delivering production-grade solutions with measurable impact. The role focuses on performance across CPU, memory, and networking, with ownership from design to deployment in a live production environment. #J-18808-Ljbffr ...

Performance Systems Engineer - Rust, Linux & I/O

Location
Greater London, England, United Kingdom
that make building complex device software feel as simple as building a webpage - starting with SourceFS. The Core Product: SourceFS SourceFS is a high-performance virtual filesystem designed to turn multi-hour workflows into minutes. 10x Faster Builds: Intelligent caching and virtualization that only materializes files when they … problems in the best possible way." The Role: Pushing the Speed Limits of Rust, Linux & I/O We are looking for a Performance/Systems Engineer to join us at Source.dev. In this role, your primary metric of success is speed. You will dissect execution paths, eliminate ...

High-Performance C++ Engineer for Global Markets

Location
City Of London, England, United Kingdom
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+ ...