26 to 50 of 107 Performance Engineering Jobs in London

Electrical Engineer - Outside IR35

Location
Greater London, England, United Kingdom
edge autonomous air systems for defence and commercial applications. Due to continued growth, they are looking to appoint an Electrical Engineer to join their engineering team and play a key role in the development of next-generation uncrewed aircraft. This is an excellent opportunity for someone who enjoys working … Integrate mission payloads including sensors, cameras and communications equipment. Support system verification, troubleshooting and fault-finding activities. Work closely with mechanical, software and systems engineering teams throughout the development lifecycle. Participate in ground and flight test activities where required. Experience Required Degree qualified in Electrical Engineering, Electronic Engineering ...

Principal Product Engineer

Location
Greater London, England, United Kingdom
technical evolution of Diesta’s backend platform. This is a deeply technical role for someone who can make difficult architectural decisions, set a high engineering bar and help the team scale a complex, data-intensive system with confidence. You will own technical direction across our NestJS, Node.js, TypeScript … although product understanding is a strong advantage. Your main focus is technical excellence: making the system more scalable, reliable, comprehensible and easier for the engineering team to evolve. As Diesta moves from an AI-driven SDLC towards a more agentic one, you will use AI-assisted tools to increase ...

Engineering Site Lead

Location
Greater London, England, United Kingdom
systems. As Site Lead, you'll serve as the face of Perplexity in London, responsible for building our technical organization, fostering a world-class engineering culture, and directly managing one or more infrastructure teams. You'll report to senior leadership and work cross-functionally with teams across our global … also facilitating. Responsibilities: Site Leadership & Culture Establish and lead Perplexity's London office, setting the cultural foundation and operating principles Build a collaborative, high-performance engineering culture that aligns with Perplexity's values while embracing the strengths of the London tech ecosystem Serve as the primary point ...

Senior C# .Net Developer

Location
Greater London, England, United Kingdom
performing solutions in a highly regulated environment. Key Responsibilities Design, develop and maintain enterprise applications using C# and .NET. Develop scalable, secure and high-performance APIs, services and distributed applications. Work with Technical Analysts and business stakeholders to translate requirements into technical solutions. Contribute to solution architecture, technical design … databases. Develop automated unit, integration and regression tests. Support CI/CD and DevOps practices. Troubleshoot production issues and perform root-cause analysis. Follow engineering, security and development standards. Participate in Agile delivery. Support application modernisation and cloud adoption. Mandatory Skills Strong commercial C#/.NET development experience .NET ...

Head of Engineering (Agentic AI Systems)

Location
Greater London, England, United Kingdom
Head of Engineering (Agentic AI Systems) Full-time We’reASOS, the online retailer for fashion lovers all around the world. We exist to give our customers the confidence to be whoever they want to be, and that goes for our people too. At ASOS,you’refree to be your … genuinely high-impact leadership role at the forefront of AI transformation, with a particular focus on agentic AI and autonomous systems. As Head of Engineering (AI Enablement),you’llshape how intelligent agents are designed, orchestrated, and deployed across the organisation-moving beyond traditional AI use cases into systems that ...

Head of Engineering (Agentic AI Systems)

Location
Camden Town, England, United Kingdom
Head of Engineering (Agentic AI Systems) Full-time We'reASOS, the online retailer for fashion lovers all around the world. We exist to give our customers the confidence to be whoever they want to be, and that goes for our people too. At ASOS,you'refree to be your … genuinely high-impact leadership role at the forefront of AI transformation, with a particular focus on agentic AI and autonomous systems. As Head of Engineering (AI Enablement),you’llshape how intelligent agents are designed, orchestrated, and deployed across the organisation-moving beyond traditional AI use cases into systems that ...

Senior Software Engineer – Ultra Low Latency Risk Engine Developer (VP)

Hiring Organisation
Citigroup
Location
London, England, United Kingdom
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 … Risk 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 Client ...

Senior Lead Machine Learning Engineer

Location
Greater London, England, United Kingdom
record of delivering successful, production-scale machine learning solutions (ideally on AWS SageMaker)**.You will provide technical leadership across ML lifecycle, including defining architecture, engineering standards, MLOps practices, and governance frameworks for a large-scale matching platform. This is a hands-on lead role requiring recent expertise in building … designing and delivering enterprise-scale ML platforms and products (ideally using AWS SageMaker).* Proven experience delivering ML solutions from data ingestion and feature engineering through to production deployment, monitoring, and continuous improvement.* Experience building reliable, low-latency inference services and operating ML workloads at scale.* Proven experience solving ...

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 ...

Test Automation Engineer

Location
Uxbridge, England, United Kingdom
that powers our VMS. We are currently evolving our platform to support deep‐tier interconnection across the Motorola product portfolio. Our team values high‐performance engineering, architectural integrity, and a commitment to building the most reliable real‐time tools in the industry. We have an office in Uxbridge … Develop and Maintain Test Suites: Develop, maintain, and execute automated tests within existing frameworks (e.g., TypeScript/Playwright) across UI, API, and backend systems. Performance Test Support: Assist with the execution and initial analysis of performance, load, and stress tests on high‐performance systems. Basic Requirements ...

Software Development Manager, Alexa for shopping (Rufus)

Location
Greater London, England, United Kingdom
offers a chance to build and launch AI-powered customer experiences from the ground up, and work closely with an exceptional group of product, engineering, and science leaders to shape the future of shopping at Amazon. Key job responsibilities Influence the strategic direction and vision of the organization through … these intersect with technical capabilities and opportunities. Provide technical leadership, vision and career guidance to team members. Create a culture of pride in engineering and operational excellence and drive best practices within teams and across organization. Be strategic about defining and building a engineering culture that takes ownership ...

Dev Ops Engineer

Hiring Organisation
Smarkets
Location
London, England, United Kingdom
edge? We’ve thrived through every market cycle, competitor, and industry revolution.At the heart of our success are our people. We create a high-performance environment where exceptional talent can thrive, blending deep business experience with a commercial mindset to drive strategic growth.If you’re ready to help shape … test, deploy, and run applications across our hybrid estate of self-hosted, co-located hardware and AWS cloud.This is a role where infrastructure meets engineering productivity: part DevOps, part Platform, 100% mission-critical.What You’ll DoPlatform Enablement: Design and maintain internal tooling and workflows that improve the developer experience ...

Dev Ops Engineer

Location
Greater London, England, United Kingdom
thrived through every market cycle, competitor, and industry revolution. At the heart of our success are our people. We create a high-performance environment where exceptional talent can thrive, blending deep business experience with a commercial mindset to drive strategic growth. If you’re ready to help shape … deploy, and run applications across our hybrid estate of self-hosted, co-located hardware and AWS cloud. This is a role where infrastructure meets engineering productivity: part DevOps, part Platform, 100% mission-critical. What You’ll Do Platform Enablement: Design and maintain internal tooling and workflows that improve ...

Senior C# .Net Developer

Location
Greater London, England, United Kingdom
performing solutions in a highly regulated environment. Key Responsibilities Design, develop and maintain enterprise applications using C# and .NET. Develop scalable, secure and high-performance APIs, services and distributed applications. Work with Technical Analysts and business stakeholders to translate requirements into technical solutions. Contribute to solution architecture, technical design … databases. Develop automated unit, integration and regression tests. Support CI/CD and DevOps practices. Troubleshoot production issues and perform root-cause analysis. Follow engineering, security and development standards. Support application modernisation and cloud adoption. Mandatory Skills .NET Core/.NET 6+ ASP.NET Core/Web API REST APIs ...

Lead Software Engineer for Digital Platforms Team

Location
Greater London, England, United Kingdom
modular React architectures (state management, routing, SSR/SSG, hydration) that scale across teams and products, emphasizing maintainability, resiliency, and long-term sustainability. Lead performance engineering - Set and enforce performance budgets and Web Vitals targets; drive bundle strategy (code splitting, lazy loading), caching/CDN policies, image … React Proven track record building and scaling complex, production-grade React applications across multiple products and teams. Demonstrated platform mindset with strong focus on performance -Emphasis on clean architecture, robustness, resiliency, reusability, and measurable improvements to Core Web Vitals. Advanced React and TypeScript expertise -Deep knowledge of hooks, context ...

Software Engineer, Deployed

Hiring Organisation
Understanding Recruitment
Location
London, England, United Kingdom
world problems.They're looking for Forward Deployed Engineers who want to do more than sit behind a desk writing code against a backlog.Think software engineering, AI, complex systems and real-world deployment - working at the intersection of cutting-edge technology and challenging operational environments.ð ️ What makes this interesting? Building … challenges. Writing production-quality code and solving problems across the software stack. Integrating AI-powered capabilities into existing systems and workflows. Taking ownership of engineering problems from initial requirements through to deployment. Working alongside highly capable software engineers and AI researchers.Who are we looking for Engineers with strong foundations ...

Python Software Engineer

Location
Greater London, England, United Kingdom
Python Software Engineer - Observability Engineering - Quant Research (You must have the right to work in the UK to be considered for this position) London (Hybrid) | c.£150k base + bonus I’m working with a top-tier quant trading firm building one of the most advanced automated research … trading platforms globally. They’re looking for a Python Software Engineer to join their Observability Engineering team , building the telemetry and monitoring infrastructure that underpins hundreds of services across the organisation. The Role Build and maintain systems that handle cloud-scale volumes of telemetry data Extend and maintain OpenTelemetry ...

Hybrid UK Director, Media Solutions Engineering

Location
Greater London, England, United Kingdom
Media Limited in London seeks a Director of Media Solutions for Engineering to lead a high-performance engineering team delivering scalable, data-driven media solutions. You’ll set standards, mentor engineers, and drive architectural alignment with global patterns. You’ll design and build modern digital products using ...

Data Platform Lead — Snowflake & Data Vault 2.0

Location
Greater London, England, United Kingdom
Vanquis is seeking an experienced Data Engineering Manager to lead data engineering leaders and squads, shaping Snowflake platform governance and engineering standards. You'll drive Data Vault 2.0 modelling, cost governance, access controls and resilience, while building an inclusive, high-performance engineering culture across distributed ...

Production Engineering Team Lead - Maritime

Location
Greater London, England, United Kingdom
family of strike platforms, the LIUT family of ground robotic platforms, and counter-UAS systems. About the role UFORCE is building its UK maritime engineering and production capability, and we’re looking for an Engineering and Production Lead to turn innovative designs into safe, reliable products delivered … pace. This is a hands-on role for an experienced engineering leader who can move confidently between design reviews, the workshop, suppliers and product testing. You’ll lead active builds, solve multidisciplinary engineering problems and establish the practical controls needed to deliver repeatable quality as our maritime programmes ...

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 ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
Senior Python Engineer who loves solving deep technical challenges? Want to help reinvent how future hardware is created? Join a top-tier, Series A engineering team building a revolutionary platform that turns high-level hardware requirements into complete circuit designs. You’ll work on complex problems at the crossroads … software, data and engineering, collaborating with experts across multiple disciplines. What You’ll Do Own and evolve backend systems across data models, algorithms, infrastructure and APIs. Build modern Python services across a wide-ranging backend codebase. Work closely with product and engineering teams to understand real hardware-design ...

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 ...

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 ...