1 to 25 of 107 Performance Engineering Jobs in London

26015489Posted: 2026-11-11Location: LONDON, United KingdomJob Function: Engineering & ArchitectureSchedule: Full timeShift: DayWorkplace: HybridCareer Area: TechnologyCompany: American ExpressDescriptionThe Enterprise Technology Services organization partners with every part of the American Express business to power the company’s growth and innovation with trust and efficiency, and drive competitive differentiation with … delivery and operations of technology, digital, and data capabilities, platforms, and services globally. Specifically, our team is responsible for the company’s technology engineering, architecture, and infrastructure, providing 24x7 support to ensure an uninterrupted, high-quality experience for customers and colleagues. We also provide product management for core enterprise ...

will always endeavour to offer everything they need to help them explore, experiment, and enjoy our brands. Director of Software Engineering FTC | Space NK, Capper Street, London Job title: Director of Software Engineering FTC Reports to: Chief Technology Officer Location: London/hybrid remote Fixed Term Contract until … August 2027 Role Overview The Director of Software Engineering is responsible for leading and evolving Space NK's software engineering capability across customer facing and enterprise technology platforms. This role provides strategic and operational leadership for multiple engineering teams covering Ecommerce, Mobile App, Loyalty ...

powers search, observability, and AI retrieval (RAG) for the world's largest organizations. We are seeking a Principal Software Engineer to join the Elasticsearch Performance team. In this role, you will lead architectural and code-level performance engineering initiatives. Your goal is to drive the continuous optimization … predictability of Elasticsearch performance, partnering with area-specific teams to unlock the full potential of our software. What You Will Be Doing Owning core performance engineering initiatives from architecture to production, focusing on the delivery of high-impact optimizations. Leading the technical design, plan, and execution ...

Project description Join a global technology team developing high-performance, low-latency platforms supporting critical trading and real-time processing workflows. The project focuses on building event-driven and reactive Java systems designed to operate at high frequency with demanding latency and throughput requirements.The environment combines advanced JVM performance engineering, concurrency, networking, and Linux optimization. The team works close to the hardware and operating-system level, optimizing memory utilization, network communication, and application performance to deliver highly efficient and reliable systems. Responsibilities - Design and develop high-performance, low-latency applications using Core Java.- Perform advanced ...

platform. This role leads complex incident response and root-cause improvements, balancing immediate customer and production needs with durable, scalable solutions. Working closely with Engineering, Information Security, and Customer Success, the Senior Site Reliability Engineer helps build an operability culture that protects customers, reduces risk, and supports the continued … growth of the platform. Responsibilities Partner closely with application engineering teams to design, build and operate reliable, scalable and resilient production services. Work across both the application and infrastructure stacks, helping engineers identify and resolve reliability, performance and operational issues. Establish and drive SRE best practices, including service ...

company with a full-stack portfolio of AI-enabled, AI-ready, and AI-optimized devices (PCs, workstations, smartphones, tablets), infrastructure (server, storage, edge, high performance computing and software defined infrastructure), software, solutions, and services. Lenovo’s continued investment in world-changing innovation is building a more equitable, trustworthy … support the full AI lifecycle from experimentation through production. Technical Leadership and Mentorship: Serve as a technical lead and mentor to infrastructure engineers, establishing engineering standards, conducting design reviews, and fostering a culture of operational excellence across the team. AI Model Deployment and Platform Engineering: Design ...

Mainframe Performance & Scalability SME London (Hybrid) | 6-Month Rolling Contract | Inside IR35 We are supporting a major financial services organisation seeking a highly experienced Mainframe Performance & Scalability SME to undertake a strategic assessment of a large-scale IBM Mainframe environment supporting critical pension administration services. This … senior consulting engagement focused on identifying performance bottlenecks, scalability constraints and future growth risks across IBM Z infrastructure, z/OS, Db2 and CICS environments. You will work closely with architecture, engineering and operations teams to assess current platform performance, analyse capacity trends and provide evidence-based ...

tests and DR failover drills to evidence compliance with RTO/RPO targets; document recovery procedures specific to mission‐critical systems including Mainsaver CMMS. Performance Engineering Proactively monitor and tune SQL Server databases: indexing strategies, statistics maintenance, query plan analysis, I/O optimisation, memory configuration, tempdb configuration … connection pooling. Utilise SQL Server Performance Monitor, Dynamic Management Views (DMVs), Extended Events, and Query Store to diagnose and resolve performance bottlenecks. Partner with developers and Mainsaver CMMS administrators to review T‐SQL queries, stored procedures, and application integration patterns; promote performance‐safe database design. Security, Privacy ...

Credit, Equity and a wide range of markets. Within QTR, AI Market Lab brings together quantitative research, modern artificial intelligence, market microstructure, and high-performance engineering to develop the next generation of electronic trading capabilities. Our work spans signal research, pricing, market making, execution, portfolio construction, risk management … will build the research and production technology behind AI-driven systematic trading . You will work at the boundary of quantitative research, low-latency engineering, and ML infrastructure , creating reliable platforms that shorten the path from raw market data and research prototypes to monitored, resilient production strategies . This ...

date technical expertise in the ever-changing and dynamic software world, Synergy Solutions International is now growing their team. Job Description Performance Test Lead Key Skills & Experience Minimum of 5+ years of experience in Performance Engineering and Benchmarking Large Scale systems and applications with skill in modeling … system under load and tuning the end of the technology stack Experience in working with different protocols using performance test tools like JMeter, Loadrunner, and SilkPerformer. Knowledge of API/web services testing tools, such as Postman, SoapUl. Good working experience in monitoring tools (Logic Monitor/App Dynamics ...

core set of client-centric solutions are designed to smash client’s problems and make tech work harder for them. They include: Performance engineering Cloud adoption, migration and optimisation Data, ML and AI enablement We tie this all together with a little thing we call ‘delivery excellence’, backed … with performance engineering, DevOps, and design thinking. And lashings of Daemonite energy, of course... What to expect You’ll be a member of the Daemon Engineering team, you’ll be pushing to win work on exciting, challenging and rewarding projects with some famous brands. Working hand ...

/2026 Secondary Skills Microservices & APIs + DevOps/CI-CD + AgileDelivery Tertiary Skills Stakeholder Management + Architecture Governance + TeamLeadership Role Title Engineering Lead Experience 12 to 18+ Years Location UK ,London Domain Job Summary We are seeking an experienced Engineering Lead todrive … engineering delivery across strategic Lloyds Banking Groupinitiatives. The ideal candidate will be responsible for leadingmulti-disciplinary engineering teams, providing technical direction, drivingengineering excellence, ensuring delivery quality, and managing stakeholderrelationships across business, architecture, operations, and deliveryfunctions. The role requires strong hands-on knowledge of modernengineering practices, cloud-native platforms ...

trusted, reusable data products that support investment decisions, client reporting, regulatory submissions and a growing range of AI use cases. As Head of Data Engineering, you will report to the Director of Data, AI & Analytics and lead a growing data engineering team across London and India. You will … will be moving us from fragmented, pipeline-by-pipeline delivery to a modern, governed architecture built around data products. This is a data engineering leadership role, not a general engineering management role. We want a practitioner who has built modern data platforms hands-on. You should know ...

purpose As part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serves millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand … software engineers and engineering, it’s an exciting time as we’re redefining ourselves into a digital first and engineering-led organisation, with the quality of our engineering team being a key differentiator. We are seeking a passionate Principal Software Engineer to join us working across ...

team – Deliver Quality and Consistency; Evolve with Focus; Make it Count; Stand Together and Strike a Balance. Summary The Director of Platform Engineering is a senior technical leader responsible for the long-term technological vision, development, and evolution of SailGP’s digital and data ecosystem. This role oversees … between business strategy and technical execution, partnering with executive leadership across the Digital and Technology teams. You will build and scale a high-performing engineering organisation, oversee architecture and engineering standards, manage vendor relationships, and drive day-to-day AI automation. This position requires a strong blend ...

develop and fulfil your potential with meaningful careers. ROLE SUMMARY We are looking for a Development Manager to lead the Software Development and Quality Engineering teams responsible for our FX Exchange applications across FX Spot, Swaps and NDF. You will have overall accountability for the people, technology, delivery … priorities into secure, resilient and scalable solutions. This is a senior People Leader role that requires technical credibility. You will guide architecture and key engineering decisions while enabling teams to own detailed design, development, testing and production support. You will also build an inclusive environment where engineers can grow ...

components that sit directly in the cash equities trading hot path, ensuring pre-trade and real-time risk controls are enforced with microsecond-level performance while maintaining correctness and resiliency at scale. This is a hands‐on, deeply technical role that also carries leadership responsibilities — mentoring engineers, driving architecture … Engine responsible for real-time pre-trade risk checks, position limits, and exposure controls across cash equities electronic execution flows. Architect and optimize high-performance, lock-minimal, multi-threaded components capable of processing risk decisions in the sub-microsecond to low-microsecond range. Integrate risk and position components with ...

Select how often (in days) to receive an alert: Principal, Quality Eng; Data & Analytics Principal, Data and Analytics Quality Engineering Lead Shape how quality is engineered across mission-critical financial platforms. This is a rare opportunity to lead Quality Engineering at scale, driving intelligent automation, embedding quality into … Microsoft Fabric, EBX, Azure Integration Services, Informatica IDMC and Control-M orchestration, bringing together modern QE practices, AI-driveninsightsand deep domainexpertiseto ensure resilience,accuracyand performance where it matters most. Ifyou’repassionate about transforming quality from a checkpoint into a strategic engineeringcapability andwant to make a visible impact ...

mission will be to create seamless support for a broad ecosystem of large AI models, and ensure we are pushing the limits of their performance envelope by closely partnering with hardware and modelling teams to understand device trade-offs. Responsibilities Project Ownership: Own and deliver projects on your team … success of Olix. Architect & Build: Design and implement our compiler, runtime, and debugger for PyTorch, TensorFlow, JAX, and MXNet on custom hardware. Optimise Performance: Apply advanced techniques (layout, fusion, scheduling, tiling) to eliminate bottlenecks and maximise throughput. Mentor & Encourage Standards: Lead code reviews, coach peers, and uphold best practices ...

money. For everyone, everywhere. More about our mission and what we offer . About the role: We are looking for a highly accomplished Senior Engineering Lead to take the helm of our newly formed Risk API Team within the Servicing Platform Squad. This is a critical, high-impact leadership … ensuring clean, scalable API contracts and data governance. Team Foundation & Growth: You will be instrumental in hiring, mentoring, and leading the team, defining the engineering standards and best practices that will serve as the foundation for the entire Risk Assessment Group. Data Integrity & Scale: Your mandate includes enforcing robust ...

Linux Infrastructure Engineer | Financial Markets Technology | Hedge Fund London | Competitive base salary + performance-related buy side bonus Linux | Python | Automation | Networking | Observability | Performance Engineering The Role: This is an infrastructure engineering role within a technology-led investment business where the Linux estate sits close … Doing: Engineer and improve Linux platforms supporting time-sensitive financial systems. Build automation that makes infrastructure deployment, configuration and maintenance more consistent. Investigate performance across operating systems, networks and applications, then implement practical improvements. Strengthen monitoring and observability so issues can be identified before they become business problems. Work ...

variety of skills and expertise we bring to help them succeed. We’re passionate about public services and relentless in tackling complex engineering challenges. As natural collaborators, we listen, bring fresh thinking, and provide our clients with the support they need to push boundaries and be boldly ambitious. Within … Engineering practice, the Quality Engineering team plays a pivotal role, standing at the forefront of ensuring the reliability and performance of technology systems. They drive innovative, end-to-end quality assurance and testing solutions, leveraging AI, continuous test automation, performance engineering, and advanced testing methodologies ...

Socure, we are revolutionizing digital trust by building mission‐critical systems that deliver high reliability and operate at global scale. As a Manager, Software Engineering, you will be a hands‐on technical leader who defines direction, raises engineering standards, and delivers measurable product outcomes, all while remaining deeply … environments, who are passionate about distributed systems, and who want to directly influence the design of secure, scalable, and resilient infrastructure while cultivating top engineering talent. What You’ll Do: Architect and design scalable, resilient, high‐performance backend systems and platforms in AWS, prioritizing reliability, security, and cost ...

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 ...

Director, Media Solutions - Engineering, UK London, United Kingdom About WPP Media WPP is the trusted growth partner for the world’s leading brands. With exceptional talent, trusted data and intelligence, and world-class partnerships – all united by ourpioneeringagentic marketing platform, WPP Open – we help clients navigate change, capture opportunity … through WPP Open and powered by Open Intelligence, clients see exactly where, how, and why their media investment is working. 3014 - Director, Media Solutions - Engineering, UK Role Summary and Impact What you’ll do Technical leadership for the Media Solutions engineering team; sets standards, designs patterns, and delivery ...