Performance Optimisation Jobs in London

26 to 50 of 184 Performance Optimisation Jobs in London

Senior C++ Engineer (Cloud)

London, South East, England, United Kingdom
MicroTECH Global Ltd
novel product features. Our products are released for use by both customers within their products and directly to the public within our own encoding workflows and players Profile and optimisation (CPU, memory bandwidth, SIMD/vectorization, threading; GPU/accelerator paths where applicable) to meet compression-ratio, latency and throughput targets. Extend and maintain existing C/C++ (C++17 … or later) codebases; refactor for reliability, portability and readability. Build automated unit, functional, and performance test suites and as a team own test and benchmarking harnesses.Collaborate in an agile environment (code reviews, design discussions, task estimating knowledge sharing and mentoring expected). Manage your deliverables we expect people to take responsibility for their deliveries but not to work in … API documents and integration guides. Qualifications: Must haves: Strong modern C++ (C++17 or later preferred) and solid C fundamentals; confident with low-level memory management, resource lifetime, templates and performance-oriented coding. Several years building and shipping production native code (typically 5+; depth matters more than exact years). Performance analysis & optimization experience using profilers/instrumentation tools More ❯
Employment Type: Full-Time
Salary: £89,000 - £90,000 per annum
Posted:

Junior Computer Vision Engineer

London, United Kingdom
Hogarth Worldwide Ltd
Blender, Maya, Houdini), and proprietary VFX pipelines. Implement best engineering practices including CI/CD pipelines, containerized deployments (Docker), and version-controlled workflows. Benchmark, optimize, and document tools for performance, reliability, and production-readiness. Requirements Solid understanding of computer vision techniques with a focus on their application in image, video, or 3D asset workflows. Hands-on experience with Adobe … Strong Python, Diffusers skills with experience in building production-grade tools and familiarity with CI/CD pipelines, Docker, and Git-based workflows. scalable rendering, DevOps and storage options Performance Optimisation: Understanding how to optimise render times, memory usage, and data transfer. Collaboration and Communication: Strong communication skills to effectively liaise with different teams, document tools for technical More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

CRO Analyst

London, South East, England, United Kingdom
Sphere Digital Recruitment
CRO Analyst - Digital Experience & Optimisation Brighton or London (hybrid flexibility) £35,000 - £45,000 + Bonus + Unlimited Holiday + Training Budget The Opportunity A fast-growing, entrepreneurial digital business is looking for a Conversion Rate Optimisation (CRO) Analyst to join its high-performing team. Working across a broad portfolio of ambitious brands, you'll take ownership of … part of a dynamic, collaborative environment that values bold ideas, clear thinking, and real results. The Role This is a hands-on, strategic CRO role focused on delivering tangible performance improvements across digital experiences. You'll work closely with data, performance, UX, creative, and tech stakeholders to identify opportunities, build test hypotheses, and implement changes that improve conversion … research findings into wireframes, user flows, and annotated mockups using tools like Figma, InVision, or Adobe XD. Present insights and CRO roadmaps to internal stakeholders and senior leadership. Maintain performance dashboards and clearly communicate testing results, impact, and confidence intervals. Stay up to date with CRO trends, UX psychology, and testing technologies. Use front-end development skills (HTML, CSS More ❯
Employment Type: Full-Time
Salary: £35,000 - £45,000 per annum, Pro-rata, Inc benefits
Posted:

Frontend Developer

City of London, London, United Kingdom
Oakwell Hampton Group
apps with React.js and ideally React Native Deep understanding of JavaScript , HTML5 , and CSS3 Experience using Git/GitHub in a team environment Good grasp of cross-browser compatibility, performance optimisation, and responsive design Comfortable pairing with designers and developers in a collaborative team Excellent communication skills and fluency in English Interested? Hit the apply button and let More ❯
Posted:

Frontend Developer

London Area, United Kingdom
Oakwell Hampton Group
apps with React.js and ideally React Native Deep understanding of JavaScript , HTML5 , and CSS3 Experience using Git/GitHub in a team environment Good grasp of cross-browser compatibility, performance optimisation, and responsive design Comfortable pairing with designers and developers in a collaborative team Excellent communication skills and fluency in English Interested? Hit the apply button and let More ❯
Posted:

1x Backend Python - Mid-level Software Engineer

London, United Kingdom
Contilio
London Shoreditch office. What you will be doing: Develop and deploykey software features E2E, including: Requirments specification Implementing and testing backend, analytics engine, database and integrations Cloud deployment and performance optimization Tracking development and product KPIs Participatingin and contributing tocode reviews andlearning sessions Identify data, pipeline, and/or operational bottlenecks, come up with improvements, and implement scalable solutions More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Technical Manager

London, United Kingdom
Hybrid / WFH Options
Future Engineering
Energy Bureau) London £45,000 - £55,000 Basic + Car + Progression + Purpose-Led Team Are you a technically-minded leader with experience in BMS, energy analytics, or performance optimisation? Do you want to be part of a values-driven company that's actively helping clients achieve Net Zero? If so, this is your chance to step … into a pivotal role at the heart of one of the UK's top building performance specialists as a Technical Manager. This is a great opportunity to lead from the front - overseeing analysts and engineers, driving energy-saving strategies, and helping shape the way buildings perform across the UK. If you've got experience in smart building systems and … leading technical teams, this Technical Manager role could be your ideal next step. Your Job As Technical Manager Will Include: * Managing the Building Performance Bureau and leading a team of analysts and BMS professionals * Ensuring quality, consistency, and timely delivery of performance reporting across public and private estates * Collaborating with clients to optimise BMS systems (Trend/Tridium More ❯
Employment Type: Permanent, Work From Home
Salary: £55,000
Posted:

Technical Manager

London, United Kingdom
Future Engineering Recruitment Ltd
Energy Bureau) London £45,000 - £55,000 Basic + Car + Progression + Purpose-Led Team Are you a technically-minded leader with experience in BMS, energy analytics, or performance optimisation? Do you want to be part of a values-driven company that's actively helping clients achieve Net Zero? If so, this is your chance to step … into a pivotal role at the heart of one of the UK's top building performance specialists as a Technical Manager. This is a great opportunity to lead from the front - overseeing analysts and engineers, driving energy-saving strategies, and helping shape the way buildings perform across the UK. If you've got experience in smart building systems and … leading technical teams, this Technical Manager role could be your ideal next step. Your Job As Technical Manager Will Include: * Managing the Building Performance Bureau and leading a team of analysts and BMS professionals * Ensuring quality, consistency, and timely delivery of performance reporting across public and private estates * Collaborating with clients to optimise BMS systems (Trend/Tridium More ❯
Employment Type: Permanent
Salary: £45000 - £55000/annum + Car + Progression + Purpose-Led Te
Posted:

Principle Engineer Sporting Solutions Sporting Solutions London

London, United Kingdom
Hybrid / WFH Options
Betsson AB
Sporting Solutions is a product led, technology-driven company that sources, generates, and distributes real-time sports betting data. Our systems operate under tight performance demands: low latency, high throughput, and ongoing reliability. We're working to continually improve our platforms and are evolving our infrastructure and applications - including moving from legacy .NET Framework systems toward modern, containerised .NET … Leading through example and building Proof-of-Concept solutions to demonstrate improved practices will be key. You'll work at the intersection of software architecture, DevOps strategy, and high-performance infrastructure, driving forward our modernization efforts and improving how we build, deploy, monitor, and scale our systems. What You'll Do Define and shape our DevOps vision , working closely … and infrastructure-as-code. Drive improvements in telemetry and observability , helping us move from log-centric metrics to first-class telemetry using OpenTelemetry and modern observability stacks. Optimise for performance , helping the platform scale for low-latency, high-throughput demands in real-time sports data delivery. Mentor and guide engineers , promoting a strong DevOps culture and fostering collaboration across More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Principle Engineer

London, United Kingdom
Hybrid / WFH Options
Betsson AB
Sporting Solutions is a product led, technology-driven company that sources, generates, and distributes real-time sports betting data. Our systems operate under tight performance demands: low latency, high throughput, and ongoing reliability. We're working to continually improve our platforms and are evolving our infrastructure and applications - including moving from legacy .NET Framework systems toward modern, containerised .NET … Leading through example and building Proof-of-Concept solutions to demonstrate improved practices will be key. You'll work at the intersection of software architecture, DevOps strategy, and high-performance infrastructure, driving forward our modernization efforts and improving how we build, deploy, monitor, and scale our systems. What You'll Do Define and shape our DevOps vision , working closely … and infrastructure-as-code. Drive improvements in telemetry and observability , helping us move from log-centric metrics to first-class telemetry using OpenTelemetry and modern observability stacks. Optimise for performance , helping the platform scale for low-latency, high-throughput demands in real-time sports data delivery. Mentor and guide engineers , promoting a strong DevOps culture and fostering collaboration across More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack DeFi Web Developer

London, United Kingdom
Hybrid / WFH Options
Re7 Capital
pipelines using GitHub Actions or similar tools to automate testing and deployment workflows. Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure. Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management. Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments. Work closely with designers, PMs, and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Frontend Engineer

City of London, London, England, United Kingdom
Statera Talent
Front-End role, you’ll be handling computational loads and real-time data joins at a scale usually reserved for back-end systems, all within a low-latency, high-performance environment. What Makes This Role Unique: This position demands more than standard UI implementation. They're looking for an engineer who: Understands JavaScript execution mechanics at a deep level … Optimises memory management in data-intensive applications Designs high-performance UI systems for complex real-time data processing Leverages advanced computer science principles to enhance browser-based performance Processes and visualises massive tick-by-tick market data streams Technical Requirements: 4+ years of software engineering experience Proven ability to handle massive real-time data streams Strong expertise in … TypeScript and React Deep understanding of JavaScript performance optimisation Experience with memory management and execution strategies What They Offer: Cutting-edge trading technology platform Intellectually stimulating engineering challenges Performance-based bonus Medical insurance Contributory pension scheme This is a rare opportunity to take on deep engineering challenges within a Front-End context. You’ll be working on More ❯
Employment Type: Full-Time
Salary: £40,000 - £80,000 per annum
Posted:

Senior Analytics Engineer

London, United Kingdom
Hybrid / WFH Options
Trusted Housesitters Group
Architecture & Modeling: Lead the design, development, and evolution of highly robust, scalable, and well-tested data models within dbt, establishing best practices that support analytics and business intelligence initiatives. Performance Optimisation & Scalability: Optimise complex data transformation layers, ensuring peak performance, scalability, and efficiency of data pipelines to accommodate rapid data growth and evolving business needs. Cross-Functional More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Head of IT - London - £65K

London, United Kingdom
Hybrid / WFH Options
Pearson Carter
Office, Outlook) Oversee public internet and Wi-Fi access for members Maintain and develop audio-visual systems Manage databases with strong SQL capability for integrations, data quality, reporting, and performance optimisation Compliance & Data Protection Act as the lead on GDPR and data protection compliance Ensure adherence to security standards such as PCI DSS Team Management & Training Manage the … Degree or professional qualification in IT, IT Management, or related field Proven experience managing both cloud and on-premises IT environments Strong SQL and database experience essential - including development, optimisation, and administration Strong knowledge of Microsoft technologies including Windows Server, 365, Active Directory, and Defender Experience supporting enterprise systems such as CRM, library management, or accounting systems Excellent problem More ❯
Employment Type: Permanent
Salary: GBP 65,000 Annual
Posted:

Senior Snowflake Data Engineer

London, United Kingdom
IO Associates
Python and SQL skills for ETL/ELT processes. Experience with CI/CD pipelines and automated testing in data workflows. Knowledge of data governance, security best practices, and performance optimisation. Confident working directly with clients, translating business needs into technical solutions. Leadership experience within delivery teams. What you get? Salary from £70k (negotiable) + bonus. 20 dedicated development More ❯
Employment Type: Permanent
Salary: £75,000
Posted:

Android Mobile Engineer - Remote

London, United Kingdom
Hybrid / WFH Options
Halian Technology Limited
Kanban). Proficient with CI/CD tools and practices. Track record of leading teams or making key technical decisions on mobile projects. Demonstrable knowledge of REST APIs and performance optimisation. Committed to accessibility standards and inclusive design. Desirable Skills: Familiarity with tools like Postman , Charles/Proxyman , Bitrise , or GitLab CI . Awareness or exposure to iOS development More ❯
Employment Type: Permanent, Work From Home
Salary: £90,000
Posted:

Web Experience Manager

London, United Kingdom
Hybrid / WFH Options
Barclays
the app, websites, and online banking, to deliver best-in-class experiences for both the customer and the business. You'll join a collaborative data-driven environment, where digital performance and customer satisfaction are at the heart of every decision. This role is central to driving continuous improvement across our digital customer channels, your focus is on the websites … and experiences. You'll work with our co.uk and content management team, helping ensure smooth, intuitive experiences for customers. You will be collaborating with product owners, marketers, designers, and optimisation teams to enhance the customer journey using data analysis and make recommendations on what works best for customers and the business as a whole. Website Customer Experience & Journey Optimisation: Drive enhancements to the customer experience across the bank's website and digital self-serve platforms. Make incremental improvements based on customer behaviour, insight and performance data. Collaborate with product, brand, design, and paid media teams to improve website landing pages and product journeys from entry to conversion. Support the handoff between digital touchpoints (e.g., landing page > product More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Software Architect

London, United Kingdom
StoneX
Purpose: We are seeking an experienced Client Platforms Architect to lead the design and development of our next-generation trading platforms. This role involves architecting scalable, secure, and high-performance web and mobile trading applications, implementing geographic routing strategies, optimizing content delivery through caching mechanisms, and integrating Identity Provider (IDP) based authentication systems. The ideal candidate will have a … and Spring Boot, promoting scalability and maintainability. Event-Driven Systems: Leverage Kafka and KStreams to build real-time data processing pipelines, facilitating efficient trade data handling and analytics. Infrastructure & Performance Optimization Geographic Routing: Develop and implement strategies for geographic routing to direct user traffic to the nearest data centers, reducing latency and improving performance. Content Caching: Integrate content caching More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

C++ Software Engineer

London, United Kingdom
Microtech Global Ltd
JOB AD: Our client are an XR company combining AI and Graphics Main Responsibilities: Profile and optimisation (CPU, memory bandwidth, SIMD/vectorization, threading; GPU/accelerator paths where applicable) to meet compression-ratio, latency and throughput targets. Extend and maintain existing C/C++ (C++17 or later) codebases; refactor for reliability, portability and readability. Build automated unit, functional … and performance test suites and as a team own test and benchmarking harnesses for our CI. Collaborate in an agile environment (code reviews, design discussions, task estimating knowledge sharing and mentoring expected). Create clear, concise and verifiable technical documentation, such as technical notes, API documents and integration guides. Key Requirements: Strong modern C++ (C++17 or later preferred) and … solid C fundamentals; confident with low-level memory management, resource lifetime, templates and performance-oriented coding. Several years building and shipping production native code (typically 5+; depth matters more than exact years). Performance analysis & optimization experience using profilers/instrumentation tools and acting on the information by planning and carrying out performance optimisation campaignsClear written More ❯
Employment Type: Permanent
Posted:

C++ Software Engineer

London, South East, England, United Kingdom
MicroTECH Global Ltd
JOB AD: Our client are an XR company combining AI and Graphics Main Responsibilities: Profile and optimisation (CPU, memory bandwidth, SIMD/vectorization, threading; GPU/accelerator paths where applicable) to meet compression-ratio, latency and throughput targets. Extend and maintain existing C/C++ (C++17 or later) codebases; refactor for reliability, portability and readability. Build automated unit, functional … and performance test suites and as a team own test and benchmarking harnesses for our CI. Collaborate in an agile environment (code reviews, design discussions, task estimating knowledge sharing and mentoring expected). Create clear, concise and verifiable technical documentation, such as technical notes, API documents and integration guides. Key Requirements: Strong modern C++ (C++17 or later preferred) and … solid C fundamentals; confident with low-level memory management, resource lifetime, templates and performance-oriented coding. Several years building and shipping production native code (typically 5+; depth matters more than exact years). Performance analysis & optimization experience using profilers/instrumentation tools and acting on the information by planning and carrying out performance optimisation campaigns Clear More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Senior back end engineer - Golang

City of London, London, Lime Street, United Kingdom
Hybrid / WFH Options
PCR Digital
implement browser automation workflows for data collection across multiple web platforms Create tools for managing browser sessions, handling JavaScript-heavy sites, and bypassing common anti-bot measures Optimise scraping performance and reliability for high-volume data collection operations Collaborate with data engineering and product teams across global organisations Deliver high-quality, efficient code in an agile environment with minimal … running Experience working in global, distributed teams Desirable Skills Knowledge of CAPTCHA handling and browser fingerprinting Familiarity with data parsing and extraction from various web formats Understanding of web performance optimisation and caching strategies More ❯
Employment Type: Contract
Rate: £600 - £650/day
Posted:

Senior Data Engineer

London, South East, England, United Kingdom
Tenth Revolution Group
distributed data systems and cloud storage platforms. Experience designing data schemas and analytical databases. Use of AI tools to streamline development and debugging. Strong grasp of algorithmic thinking and performance optimisation. Proficiency with SQL and NoSQL databases such as PostgreSQL and Cassandra. Experience with systems like Kafka or RabbitMQ. Ability to build and manage ETL pipelines using tools like More ❯
Employment Type: Full-Time
Salary: £85,000 - £100,000 per annum
Posted:

Senior Data Engineer

City of London, London, United Kingdom
Tenth Revolution Group
distributed data systems and cloud storage platforms. Experience designing data schemas and analytical databases. Use of AI tools to streamline development and debugging. Strong grasp of algorithmic thinking and performance optimisation. Proficiency with SQL and NoSQL databases such as PostgreSQL and Cassandra. Experience with systems like Kafka or RabbitMQ. Ability to build and manage ETL pipelines using tools like More ❯
Employment Type: Permanent
Salary: £85000 - £100000/annum
Posted:

Web Ecosystem Consultant, gTech

London, United Kingdom
Google Inc
more programming languages (e.g., Java, C/C++, Python). Experience working with and managing external partners or customers. Preferred qualifications: Experience working with Web standards. Experience with Web Performance optimization. Experience with Web Frameworks. About the job In gTech Users and Products (gUP), our mission is to advocate for Google's users by creating helpful and trusted experiences More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Managing Consultant/ AI Business Solution Lead

City of London, London, United Kingdom
Hybrid / WFH Options
Vallum Associates
Job Role: Ideal candidate should have proven experience to drive impactful operational improvements through a broad set of capabilities, combining Lean and Systems Thinking with elements of Business Transformation, Performance Optimisation, modern AI/ML, cognitive and data science-based techniques, Process Intelligence (Celonis), and build strategic capability to drive data-driven continuous operational excellence . We continue … different industry market sectors (Utilities, Retail, CPG, Energy, Telecom, BFSI, Pharmaceutical & Lifesciences and Government). Job Responsibilities: • Take responsibility for steering Celonis projects and programs aimed at enhancing operational performance, ensuring future-ready operations, and developing sustainable AI-led capabilities within clients. • Assist clients in formulating and executing process digitisation, automation, and AI strategies with an operational focus that More ❯
Posted:
Performance Optimisation
London
10th Percentile
£52,375
25th Percentile
£67,500
Median
£85,000
75th Percentile
£100,313
90th Percentile
£120,000