Performance Optimisation Jobs in London

51 to 75 of 219 Performance Optimisation Jobs in London

Head of IT - South West London based - Hybrid - Up to £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:

Client Solution Architect (London)

London, UK
Collinson
implement custom integrations, APIs, and technical solutions, ensuring seamless interoperability between platforms and third-party services. Technical Leadership & Best Practices - Maintain a high standard of software architecture, coding, and performance optimisation, working closely with our central Software Engineering department. Stakeholder Communication - Bridge the gap between technical teams, business leaders, and clients, translating business needs into robust technical solutions. More ❯
Employment Type: Full-time
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:

C++ Software Engineer

London, United Kingdom
Hybrid / WFH Options
microTECH Global Limited
Job Type: Permanent Location: London, UK Candidates are required to do hybrid working in London. 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+ … 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+ 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 More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Golang Developer

London, United Kingdom
Arrows Group
on Azure. * TDD (Test-Driven Development) experience. * API build experience is essential, especially with 3rd party API's * Comfortable working with relational and NoSQL databases, including complex queries and performance optimization. * Solid understanding of web design patterns, including SOLID principles. * Experience working in an agile, collaborative environment. * Familiarity with automated testing and CI/CD pipelines. The interview process More ❯
Employment Type: Contract
Rate: GBP 520 - 550 Daily
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:

Senior Golang Software Engineer

London, United Kingdom
Hybrid / WFH Options
Rollbar, Inc
and platforms, to address key business requirements. These solutions encompass critical areas such as provisioning, configuration, continuous integration/continuous delivery (CI/CD), monitoring, service level agreements (SLAs), performance optimization, and system uptime. The team is committed to meticulous execution and collaborates extensively with a broad range of stakeholders throughout the product lifecycle. This is a fully remote More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Managing Consultant/ AI Business Solution Lead

London Area, 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:

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:

Real Time Messaging Support Analyst

Bromley, London, United Kingdom
Pontoon
to innovation. You'll be part of a collaborative team working on major transformation projects, including the migration from Skype for Business to Microsoft Teams, in a dynamic, high-performance environment. The Role As a Collaboration Operations Support Analyst, you will be responsible for the day-to-day operations, support, and optimisation of a complex Unified Communications environment. … Mattermost (Linux-based), and Symphony. Troubleshoot and resolve critical escalations, acting as a 3rd line subject matter expert. Deliver production changes, infrastructure deployments, and proactive service improvements. Support monitoring, performance optimisation, and capacity planning using tools such as Splunk, SCOM, and SiteScope. Collaborate with architecture and engineering teams on solution design, testing, and implementation. Apply ITIL-aligned incident More ❯
Employment Type: Contract
Rate: £400 - £450/day
Posted:

Real Time Messaging Support Analyst

Bromley, Kent, England, United Kingdom
Pontoon
to innovation. You'll be part of a collaborative team working on major transformation projects, including the migration from Skype for Business to Microsoft Teams, in a dynamic, high-performance environment. The Role As a Collaboration Operations Support Analyst, you will be responsible for the day-to-day operations, support, and optimisation of a complex Unified Communications environment. … Mattermost (Linux-based), and Symphony. Troubleshoot and resolve critical escalations, acting as a 3rd line subject matter expert. Deliver production changes, infrastructure deployments, and proactive service improvements. Support monitoring, performance optimisation, and capacity planning using tools such as Splunk, SCOM, and SiteScope. Collaborate with architecture and engineering teams on solution design, testing, and implementation. Apply ITIL-aligned incident More ❯
Employment Type: Contractor
Rate: £400 - £450 per day
Posted:

Senior Data Engineer

London, United Kingdom
Hybrid / WFH Options
CreateFuture
data solutions for some of the UK's best-known brands. You'll have a hand in everything from data ingestion and transformation to pipeline automation and data platform optimisation - always with a strong focus on quality, scalability, and value. What you'll be doing: Designing, building and maintaining robust, cloud-native data pipelines Automating and orchestrating workflows using … across cloud platforms - especially AWS (Glue, Lambda, Athena), Azure (Data Factory, Synapse), or GCP (Dataflow, BigQuery, Cloud Composer) You have a good understanding of data modelling, data warehousing and performance optimisation You care deeply about data quality, testing, and documentation You enjoy solving real-world problems and collaborating with cross-functional teams You're comfortable in a consultancy More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Machine Learning Engineer (Brahma)

London, United Kingdom
DNEG Group
ready pipelines. We are looking for a Senior Machine Learning Engineer to join our team and help build state-of-the-art generative systems for video and audio synthesis, performance transfer, and visual translation. This role is hands-on and technical, requiring experience in training and deploying deep learning models, a solid engineering mindset, and the ability to work … testing, and development best practices. Ability to mentor junior engineers and work independently. Nice to Have Prior experience in generative AI for video, audio, or multimodal content. Experience with performance optimisation for ML models and pipelines. Background in computer graphics, real-time rendering, or VFX pipelines. Open-source contributions or published research in machine learning. Entrepreneurial mindset or More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Machine Learning Engineer (London)

London, UK
Cerebras
the next generation of AI models on cutting-edge hardware, wed love to hear from you! Responsibilities and Duties Implement the latest machine learning models and optimise them for performance and accuracy, scaling to thousands of accelerators. Test and evaluate new internal software releases, provide feedback to software engineering teams, make vital code fixes, and conduct code reviews. Benchmark … models and key ML techniques to identify performance bottlenecks and improve model efficiency. Design and conduct experiments on novel AI methods, implement them, and evaluate results. Collaborate with Research, Software, and Product teams to define, build, and test Graphcores next generation of AI hardware. Engage with the AI community and stay updated with the latest developments in AI. Candidate … learning frameworks like PyTorch or JAX. Strong Python software development skills (knowledge of C++ or other languages is a plus). Familiarity with deep learning fundamentals such as models, optimisation, evaluation, and scaling. Experience in designing, executing, and reporting ML experiments. Ability to work quickly and effectively in a dynamic environment. Enjoy cross-functional collaboration with other teams. Strong More ❯
Employment Type: Full-time
Posted:

Magento Developer

London, United Kingdom
WHD Consulting Ltd
4+ years of Magento development experience Proficient in Javascript Familiar with Git, Jira, Bitbucket, and agile processes. Solid problem-solving abilities and a collaborative mindset. Understanding of responsive design, performance optimisation, and cross-browser/device compatibility. More ❯
Employment Type: Contract
Posted:

Lead Data Architect

Central London, London, United Kingdom
Hybrid / WFH Options
Anson Mccade
systems and APIs, and creating stories for implementation Collaborate with third parties to ensure interoperability and integration compatibility Champion best practices in warehousing techniques (e.g. Kimball), metadata management, and performance optimisation Support delivery through integration testing, reconciliation, and reporting visualisation (e.g. Power BI, Tableau) About You: Proven experience designing data architectures for large-scale platforms and diverse stakeholder More ❯
Employment Type: Permanent, Work From Home
Posted:

Digital Production Coordinator

London, United Kingdom
CityWire
essential: -Email Testing Tools: Familiarity with tools like Email On Acid or Litmus for testing and optimising email templates. -Display Advertising: Experience with display advertising, including creative execution and performance optimisation. -Software Proficiency: Experience with Microsoft Office, Google Suite, and other related software for project management and data analysis. -WordPress Administration: Experience administering WordPress websites, including static and data More ❯
Employment Type: Permanent
Posted:

React Developer - Fixed Income eTrading

London, United Kingdom
Vertus Partners
build cutting edge frontend systems for Fixed Income eTrading, including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI design Experience with real-time data technologies More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Performance Optimisation
London
10th Percentile
£52,250
25th Percentile
£68,125
Median
£85,000
75th Percentile
£100,625
90th Percentile
£120,000