51 to 75 of 129 Performance Engineering Jobs in London

Quantitative Developer

Location
Greater London, England, United Kingdom
role at the intersection of quantitative research and production engineering. You’ll help design and implement sophisticated pricing, hedging and optimisation models within high-performance, distributed Java systems. What you’ll be doing Building production‐grade pricing, hedging and optimisation models in Java Developing client pricing, spread optimisation … advanced Java development experience Strong commercial experience with Java 17 or later , ideally Java 21 Excellent knowledge of concurrency, object-oriented design and performance engineering Experience building high-performance, distributed systems A strong quantitative background with practical experience in numerical optimisation or machine learning Experience in client ...

SVP - Credit Risk Technology (SME & Development Lead)

Location
City Of London, England, United Kingdom
governance, transparency, and communication around delivery status, risks, and dependencies. Oversee resource planning, budgeting, vendor management, and workforce strategy. Develop and maintain a high-performance engineering culture focused on quality, accountability, and continuous improvement. Lead hiring, mentoring, succession planning, and talent development initiatives. Ensure system resilience, audit compliance … technical design documentation and test plans Strong understanding of securities products including bonds and equities Experience leveraging AI and Agentic AI solutions within software engineering environments Desirable Experience with cloud-based risk platforms and pricing engines Azure Kubernetes Service (AKS) Azure Data Lake Microservices and event-driven architectures Kafka ...

Staff ML Performance Engineer (Compiler)

Location
Greater London, England, United Kingdom
inclusive work environment; we back each other to deliver impact. Make Wayve the experience that defines your career! The role As a Staff ML Performance Engineer, you’ll play a key role in high-impact projects, optimising ML inference for edge accelerators and GPUs. The focus of this team … high-impact projects at Wayve. Key responsibilities: Identify, implement and validate optimisations in ML compilers, runtimes, and kernels (e.g. operator fusion, scheduling, quantisation‐aware performance, custom kernels) Profile and pinpoint bottlenecks across the full inference stack (model graph, compiler/runtime, kernel execution, memory movement) and deliver measurable improvements. ...

Senior/Staff Software Engineer (Nova Core)

Location
Greater London, England, United Kingdom
Improve developer experience: faster local workflows, environment parity (e.g., dockerized deps, seeded data), and rapid test feedback. Strengthen test harnesses (contract tests, integration tests, performance baselines) to catch cross-service breakages earlier. Diagnose and fix high-impact performance bottlenecks (latency hot paths, caching, concurrency, DB query efficiency … introduce pragmatic performance budgets. Refactor brittle areas and pay down targeted technical debt to improve maintainability and reduce operational risk. Communicate trade-offs clearly and collaborate effectively with dependent engineering and product teams. What success looks like Core Nova services are delivered, adopted, and operated reliably with clear ...

Python Lead Software Engineer - Rates Live Risk & P&L

Location
Greater London, England, United Kingdom
Description You will join a front-office engineering team that builds and operates core Rates trading tooling where correctness, resilience, and latency matter every day. The environment is fast-moving and highly collaborative, with strong expectations for production ownership, rapid iteration, and high-quality delivery. Job Responsibilities Build … runtime environments; drive fixes that reduce recurrence. Improve DevOps and operational readiness, including CI/CD, environment management, dependency management, and automation. Maintain strong engineering standards through code reviews, testing discipline, performance profiling, and clear documentation/runbooks. Required qualifications, capabilities, and skills Strong Python development skills, including ...

Mission Operations Engineer

Location
Greater London, England, United Kingdom
operations platform powering the world's most advanced hardware systems, from spacecraft and autonomous vehicles to next‐generation defense programs. Our platform gives hardware engineering teams a single place to ingest data, analyze performance, automate test execution, and collaborate across every phase of development, so they can move … tier commercial and defense customers, from autonomy leaders like Anduril and Shield AI to next‐generation aerospace teams like Hermeus and REGENT, and performance engineering teams like Pratt Miller Motorsports, alongside mission partners within the U.S. Navy and U.S. Air Force on programs where failure ...

Senior iOS Engineer London

Location
Greater London, England, United Kingdom
that back drivers instead of the old insurance playbook. We don't do things slowly, and we don't do bureaucracy. We back high-performance builders who want ownership, early responsibility and the chance to do the most career-defining work of their lives. You'll get the space … understand their driving without friction Build and evolve the native mobile SDK that collects the data behind every driver score Set technical direction and engineering standards that teams beyond your own follow Raise the quality bar through code reviews, design docs and tech talks, so knowledge spreads rather than ...

Product Support Engineer

Location
Greater London, England, United Kingdom
operations platform powering the world's most advanced hardware systems, from spacecraft and autonomous vehicles to next-generation defense programs. Our platform gives hardware engineering teams a single place to ingest data, analyze performance, automate test execution, and collaborate across every phase of development, so they can move … tier commercial and defense customers, from autonomy leaders like Anduril and Shield AI to next-generation aerospace teams like Hermeus and REGENT, and performance engineering teams like Pratt Miller Motorsports, alongside mission partners within the U.S. Navy and U.S. Air Force on programs where failure ...

Java Full Stack Developer

Location
Greater London, England, United Kingdom
Asia Pacific. ‘Together we’re sharing new perspectives and transforming what it means to be a bank.’ List of Responsibilities Planning, designing, and developing engineering solutions that help achieve business goals. Building reliable and resilient solutions through thoughtful testing, continuous improvement, and quality reviews throughout the delivery lifecycle. Promoting … maintainability, scalability, accessibility, and reusability in engineering solutions. Ensuring solutions are well-architected and effectively integrated into end-to-end business processes. Reviewing engineering approaches and quality standards to encourage knowledge sharing, innovation, and continuous enhancement of engineering capabilities. Partnering with cross-functional teams to solve complex ...

Copy of Engineering Program Manager - UltraGrid

Location
Greater London, England, United Kingdom
focus on innovation and democratising EV ownership. Coordinate a Single-Track Roadmap : Serve as the primary point of contact between the UX team, engineering, product management, and other stakeholders, aligning everyone to one overarching roadmap. Plan & Track with Jira : Use Atlassian Jira as the central project management tool, setting … VPPs and energy retailers. Built to allow rebalancing the grid and sustain EV adoption at mass scale, UltraGrid aims to be a masterpiece of performance engineering, deeply focused on performance and cost, while streaming 100,000 telemtries daily from each connected household. What We’re Looking ...

Software Engineer, Rulesets

Location
Greater London, England, United Kingdom
have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World … partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations: London (Hybrid) About Engineering at Cloudflare Cloudflare’s Engineering team is responsible for the software platform that serves 115 million HTTP requests per second on average. We also build ...

Senior Java Developer IRC303859

Location
Greater London, England, United Kingdom
looking for someone to join our high performance engineering team building our new real time banking platform. You’ll bring strong experience of working with Continuous Deployment practices in production environments. You’ll have experience building and operating cloud native services using technologies such as Spring Boot, with … automation as a core engineering principle. You’ll be comfortable designing and delivering robust, scalable and resilient distributed systems, with a strong focus on reliability, observability and operational excellence. Exposure to agentic coding practices where it adds value, would be hugely beneficial You’ll also need: Strong experience building ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
what they ship. Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, performance, reliability and data integrity are part of the product. Our platform is powered by a modern, high-performance engineering stack designed for scale … business problem, shape the requirements, design the solution, build it, test it, deploy it and run it in production. Design and evolve services for performance, scale, resilience and data integrity. Make clear technical decisions with a full understanding of the constraints, alternatives and trade-offs. Keep code and systems ...

SVP - GenAI Full-Stack Engineer Lead

Location
Greater London, England, United Kingdom
challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. We're looking for a hands-on engineering lead with a passion for building AI-powered products and shaping engineering culture. You'll provide technical leadership while remaining close … code, partnering with teams across the organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Key Responsibilities Drive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations. Remain hands ...

Staff Backend Engineer

Location
Greater London, England, United Kingdom
what they ship. Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, performance, reliability and data integrity are part of the product. Our platform is powered by a modern, high-performance engineering stack designed for scale … clear system boundaries and architectural direction without creating unnecessary central control. Lead technical decisions by making constraints, alternatives, risks and trade-offs explicit. Improve performance, resilience, data integrity, operability and failure handling across production systems. Resolve recurring structural problems rather than treating symptoms team by team. Remain hands ...

Python Engineer

Location
Greater London, England, United Kingdom
global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the world's leading public cloud and silicon providers, and industry leaders in many sectors. The company … help build a thriving community, contribute to a broad range of technologies, and ensure seamless software operations at scale. Location: we have remote Python engineering roles in every time zone. What your day will look like Write high-quality, well-designed and well-tested Python software Collaborate proactively with ...

Founding GPU Engineer

Location
Greater London, England, United Kingdom
Opportunity Demand for high-performance compute capacity across the markets we operate in significantly outpaces what we can currently build, meaning speed to power and reliability are critical to how we scale. This puts CUDA/GPU performance engineering at the center of how Fuse scales … compute infrastructure. Responsibilities Design, implement, and optimise CUDA kernels for high-throughput, latency-sensitive workloads. Profile and tune GPU performance across compute, memory bandwidth, and interconnect (NVLink/PCIe) bottlenecks. Build tooling to correlate GPU cluster power draw and utilisation with real-time energy pricing and grid signals. Optimise ...

Staff Software Engineer

Location
Greater London, England, United Kingdom
least 4 days per week from our new Kings Cross office, plus a flexible work-from-home day. Responsibilities: Design, implement, and maintain high-performance embedded and real-time software components in C++, including hardware abstraction layers, device drivers, and data acquisition pipelines. Define and drive technical strategy, proactively … line with ISO 14971 and CoMind’s QMS. Participate in design reviews, sprint planning, and cross-functional technical forums, contributing to a high-performance engineering culture. AI is fundamental to our culture — it's not just a tool, but a core part of how we work, collaborate ...

Oracle Database Engineer - up to £90,000 + Bonus - Hybrid

Location
City Of London, England, United Kingdom
Full time Type: Permanent We have partnered with a globally established organisation to hire an experienced Oracle Database Engineer for their database and platform engineering team. This is a hands-on position covering Oracle administration, automation and performance engineering across large-scale Exadata and cloud environments, including … Autonomous Exadata Cloud@Customer. The Oracle Database Engineer role suits an Oracle professional who wants to move beyond routine administration into platform engineering: building automation that removes manual overhead, tuning at scale, and owning multi-tenant database architecture across mission-critical systems. About the role - Oracle Database Engineer (Oracle ...

Principal Software Engineer - C#

Location
City Of London, England, United Kingdom
include formal people management. Role Responsibilities Act as the primary hands‐on technical leader: architect the platform, write correctness‐critical code, and set the engineering bar through your own output. Own the technical direction of the ICRV greenfield project, developing high‐performance, scalable, and robust solutions from first … governance while delivering business value and ensuring adherence to group wide technology standards and mandates. Mentor and coach other team members to achieve optimum performance and career growth. Leverage offshore staffing vendors effectively. Establish AI‐assisted development as a disciplined team practice using company‐wide tooling, workflow integration ...

Senior Software Engineer | Full-Stack

Location
Greater London, England, United Kingdom
before the How. As a Senior Engineer at DeepL, you will operate with the agency of a founder. You will join a high-performance engineering culture that values shipping speed, system reliability, and direct business impact over theoretical perfection, whether you are building our next-gen Voice … wait for perfect requirements; you identify risks, build prototypes, and iterate based on real-world feedback. Bridge the Gap: You will be bilingual in "Engineering" and "Business." You will translate complex technical constraints (latency, eventual consistency) into business terms for Product Managers, ensuring we negotiate the right trade-offs ...

Principal Software Engineer - C#

Location
Greater London, England, United Kingdom
include formal people management.**Role Responsibilities*** Act as the primary hands-on technical leader: architect the platform, write correctness-critical code, and set the engineering bar through your own output.* Own the technical direction of the ICRV greenfield project, developing high-performance, scalable, and robust solutions from first … wide governance, while delivering business value ensuring adherence to group wide technology standards and mandates.* Mentor and coach other team members to achieve optimum performance and career growth. Work effectively to leverage offshore staffing vendors.* Establish AI-assisted development as a disciplined team practice using company wide tooling, workflow ...

Low Latency Java Developer

Location
Greater London, England, United Kingdom
Java | Low Latency We're working with a technology-driven trading business looking for a hands-on Java Developer to build and enhance high-performance electronic trading systems. You’ll work closely with traders and quantitative developers, building systems where latency, performance and reliability directly impact trading outcomes … with traders and quantitative developers Developing market-data and order gateways Integrating quantitative models into production trading systems Working with FIX, multicast and high-performance messaging Optimising JVM applications for low allocation, low GC and predictable latency Developing simulation, backtesting and regression-testing frameworks Taking ownership from design ...

Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React)

Location
Greater London, England, United Kingdom
includes our commitment to being an inclusive workplace, attracting and developing exceptional talent, supporting our teammates’ physical, emotional, and financial wellness, recognizing and rewarding performance, and how we make an impact in the communities we serve. Bank of America is committed to an in-office culture with specific requirements … Server Sent Events). Design and implement modular, testable, and reusable components and design system primitives aligned to accessibility (WCAG 2.1 AA+). Drive performance engineering: rendering optimization, virtualization for large grids/blotters, memoization, Suspense/Concurrent features, and profiling. Champion resilience: graceful degradation, offline/slow ...

CUDA Engineer

Location
Greater London, England, United Kingdom
Spotify, Uber and more. As data centers become one of the largest and fastest‐growing sources of electricity demand, Fuse is expanding into high‐performance compute infrastructure that sits at the intersection of energy and AI - optimising how power‐dense GPU workloads are scheduled, cooled, and balanced against grid … CUDA Engineer to write and optimise the low‐level GPU code that powers our inference workloads. You'll design custom CUDA kernels, tune performance across memory bandwidth and compute bottlenecks, and squeeze maximum throughput out of every GPU in our fleet, working at the level of SMs, warps ...