51 to 75 of 238 Performance Optimisation Jobs in London

Machine Learning Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
SageMaker, EKS, batch & real-time inference. Data pipelines: Spark/SQL, orchestration (Airflow), monitoring for drift/perf. Nice to Have Cost/performance optimisation on AWS; GPU scheduling; quantisation/distillation. Experience working within Financial Services engineering standards and governance. IND_PC3 Guidant, Carbon60, Lorien ...

Mobile Engineer

Hiring Organisation
Paritas Recruitment
Location
London, UK
Employment Type
Full-time
influencing the direction of the wider technology landscape. You will also be responsible for: Defining and governing engineering and design solutions focused on automation, performance, scalability, resilience and security Designing and engineering complex software, tools and scripts within a feature or platform team Developing architecture models and roadmaps … Strong experience building Android applications using Kotlin, Java, and Jetpack Compose Proven background in test-driven development, automated testing frameworks, mocking/stubbing and performance optimisation Experience leading and supporting engineering teams in a matrix or cross-functional structure Ability to translate complex business and product requirements into ...

Senior .Net Developer

Hiring Organisation
Morris Sinclair Recruitment
Location
REMOTE, St James's Square, Greater London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £100000/annum
Style Coding Challenge Designed to evaluate algorithmic problem-solving skills Focus on efficient, optimised solutions Challenges will test: Data Structures Algorithm Design Computational Thinking Performance Optimisation Ideal Candidate Profile: Academic and Professional Requirements: Minimum Qualification: Degree/Masters/PhD in Computing, Data Science, or Equivalent Proven Commercial ...

Senior .Net Developer

Hiring Organisation
MORRIS SINCLAIR RECRUITMENT LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
Style Coding Challenge Designed to evaluate algorithmic problem-solving skills Focus on efficient, optimised solutions Challenges will test: Data Structures Algorithm Design Computational Thinking Performance Optimisation Ideal Candidate Profile: Academic and Professional Requirements: Minimum Qualification: Degree/Masters/PhD in Computing, Data Science, or Equivalent Proven Commercial ...

WordPress & Digital Design Apprentice

Hiring Organisation
Cleveland & Co
Location
City of London, London, United Kingdom
Divi Build and refine responsive layouts for key pages (homepage, services, campaigns, team profiles, client stories, insights) Optimise images, videos and other media for performance and usability Configure and test forms and basic CRM integrations to ensure enquiries route to the right people Improve navigation, tagging and content structure … make it easier for users to find relevant information Support ongoing site improvements , including readability, accessibility and performance You’ll gain exposure to how a professional services firm uses digital to communicate with clients, prospects and partners, and you’ll be involved in real, visible changes to the site. ...

WordPress & Digital Design Apprentice

Hiring Organisation
Cleveland & Co
Location
London Area, United Kingdom
Divi Build and refine responsive layouts for key pages (homepage, services, campaigns, team profiles, client stories, insights) Optimise images, videos and other media for performance and usability Configure and test forms and basic CRM integrations to ensure enquiries route to the right people Improve navigation, tagging and content structure … make it easier for users to find relevant information Support ongoing site improvements , including readability, accessibility and performance You’ll gain exposure to how a professional services firm uses digital to communicate with clients, prospects and partners, and you’ll be involved in real, visible changes to the site. ...

Senior ML Infrastructure Engineer Robotics

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £1,000 per day
build, and optimise the training and inference platforms at the heart of their technology. This is a hands-on engineering role focused on scale, performance, and reliability. You will work across the full machine learning lifecycle, from distributed training pipelines to highly optimised inference systems deployed into production robotics … directly impact real-world deployment. Key Responsibilities * Design, build, and maintain distributed ML training pipelines including data preprocessing, orchestration, training, and evaluation* Optimise training performance, scalability, and resource utilisation across online and offline learning workflows* Develop and optimise AI inference pipelines for deployment into real-world robotic systems* Build ...

Lead Deliverability Consultant

Hiring Organisation
APL Media Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
from all backgrounds and is committed to building an inclusive, supportive workplace. Why This Role Matters Revenue Engine: You’ll ensure the reliability and performance of the outbound email ecosystem that fuels millions in potential sales pipeline. Technical Ownership: You’ll design, monitor, and continuously improve the cold email … maintain deliverability while scaling outreach volume. Evaluate and integrate deliverability tools (Google Postmaster, GlockApps, Warmbox, Instantly, Validity/Everest and Workbooks CRM). Performance Optimisation Partner with Sales leadership to optimize sending cadence, personalisation, and engagement patterns. Run experiments to improve inbox placement and response rates across different ...

Senior Product Manager

Hiring Organisation
How Ya Doing
Location
City of London, London, United Kingdom
Responsibilities Strategy & Roadmap: Define and own the roadmap for Card Payments and Failed Payment Recovery, ensuring alignment with commercial priorities and regulatory compliance. Performance Optimisation: Proactively dive into payment performance data to identify friction points, uncover issuer behaviours, and design experiments to maximise authorisation rates. Intelligent Solutions ...

Senior Product Manager

Hiring Organisation
How Ya Doing
Location
London Area, United Kingdom
Responsibilities Strategy & Roadmap: Define and own the roadmap for Card Payments and Failed Payment Recovery, ensuring alignment with commercial priorities and regulatory compliance. Performance Optimisation: Proactively dive into payment performance data to identify friction points, uncover issuer behaviours, and design experiments to maximise authorisation rates. Intelligent Solutions ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
City of London, London, United Kingdom
data fabric platform. This platform underpins critical data flows, analytics, and operational systems for a global investment bank. You will work in a high-performance environment, collaborating with cross-functional teams to ensure the seamless integration, processing, and availability of enterprise data. The role will involved a good … house data fabric using C#. • Data Integration: Build APIs and services to enable seamless data exchange across trading systems, risk engines, and analytics platforms. • Performance Optimization: Enhance the performance of data pipelines, ensuring low-latency processing for real-time analytics and decision-making. • Architecture Design: Contribute ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
London Area, United Kingdom
data fabric platform. This platform underpins critical data flows, analytics, and operational systems for a global investment bank. You will work in a high-performance environment, collaborating with cross-functional teams to ensure the seamless integration, processing, and availability of enterprise data. The role will involved a good … house data fabric using C#. • Data Integration: Build APIs and services to enable seamless data exchange across trading systems, risk engines, and analytics platforms. • Performance Optimization: Enhance the performance of data pipelines, ensuring low-latency processing for real-time analytics and decision-making. • Architecture Design: Contribute ...

Full Stack Engineer

Hiring Organisation
Levy Global
Location
City of London, London, United Kingdom
requirements into scalable, maintainable code Collaborate with product managers, designers, and engineers to deliver end-to-end solutions Solve complex challenges related to scalability, performance, and reliability Contribute to engineering best practices, tooling, and processes Required Experience 3+ years of experience building full-stack applications Experience developing enterprise SaaS … ORMs (e.g., Sequelize) Strong frontend experience with React and modern UI frameworks Experience working with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Technical Skills Backend: TypeScript, NestJS, Sequelize, REST APIs, GraphQL, MySQL, NoSQL, Kafka Frontend: React, Next.js, TypeScript, Chakra UI, React Query, GraphQL ...

Full Stack Engineer

Hiring Organisation
Levy Global
Location
London Area, United Kingdom
requirements into scalable, maintainable code Collaborate with product managers, designers, and engineers to deliver end-to-end solutions Solve complex challenges related to scalability, performance, and reliability Contribute to engineering best practices, tooling, and processes Required Experience 3+ years of experience building full-stack applications Experience developing enterprise SaaS … ORMs (e.g., Sequelize) Strong frontend experience with React and modern UI frameworks Experience working with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Technical Skills Backend: TypeScript, NestJS, Sequelize, REST APIs, GraphQL, MySQL, NoSQL, Kafka Frontend: React, Next.js, TypeScript, Chakra UI, React Query, GraphQL ...

React Developer - Fixed Income eTrading

Hiring Organisation
Vertus Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 - 140,000 Annual
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 … 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 Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering Front End applications in electronic trading environments Strong understanding ...

Senior AI Engineer

Hiring Organisation
Circuit Medical
Location
London, UK
Employment Type
Full-time
approaches including working with agentic architecture. Key Responsibilities Backend Development & Architecture - Design and implement scalable Python backend services, architect and maintain secure, high-performance, production multi-tenant systems, and develop RESTful and asynchronous APIs for internal and external use. LLM, Agents & AI Integration - Drive R&D innovation to meet … preferably AWS) and infrastructure-as-code Ø Experience with containerisation, orchestration, and CI/CD pipelines Ø Understanding of database scaling, caching strategies, and performance optimisation Ø Familiarity with LLM technologies and latest utilisation methodologies, including agentic workflows Ø Strong understanding of software design principles and coding standards ...

Senior AI Engineer

Hiring Organisation
Circuit Medical
Location
South London, UK
Employment Type
Full-time
approaches including working with agentic architecture. Key Responsibilities Backend Development & Architecture - Design and implement scalable Python backend services, architect and maintain secure, high-performance, production multi-tenant systems, and develop RESTful and asynchronous APIs for internal and external use. LLM, Agents & AI Integration - Drive R&D innovation to meet … preferably AWS) and infrastructure-as-code Ø Experience with containerisation, orchestration, and CI/CD pipelines Ø Understanding of database scaling, caching strategies, and performance optimisation Ø Familiarity with LLM technologies and latest utilisation methodologies, including agentic workflows Ø Strong understanding of software design principles and coding standards ...

Frontend / UI React Developer - Fixed Income eTrading

Hiring Organisation
Vertus Partners
Location
London Area, United Kingdom
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 … 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 Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding ...

Frontend / UI React Developer - Fixed Income eTrading

Hiring Organisation
Vertus Partners
Location
City of London, London, United Kingdom
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 … 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 Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding ...

Python Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications … commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance ...

Python Developer

Hiring Organisation
Radley James
Location
London Area, United Kingdom
providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications … commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance ...

Software Developer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
including Firestore, Realtime Database, Authentication, or Cloud Functions. Familiarity with REST APIs, serverless architectures, and cloud-based development. Solid understanding of frontend best practices, performance optimisation, and responsive design. Excellent problem-solving skills and a collaborative mindset. Nice to have: Experience with TypeScript, Redux, or other state management ...

Software Developer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
London Area, United Kingdom
including Firestore, Realtime Database, Authentication, or Cloud Functions. Familiarity with REST APIs, serverless architectures, and cloud-based development. Solid understanding of frontend best practices, performance optimisation, and responsive design. Excellent problem-solving skills and a collaborative mindset. Nice to have: Experience with TypeScript, Redux, or other state management ...

NodeJS Developer

Hiring Organisation
Arrows
Location
London, England, United Kingdom
Previous experience configuring, deploying, and monitoring applications and websites on AWS. You're comfortable working with relational and NoSQL databases, including complex queries and performance optimisation. Understand web design patterns, including SOLID principle and you have experience working in a collaborative, agile team environment. Familiar with automated testing ...

Senior Architect - API

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
architectures and messaging strategies to power automation and connectivity across the enterprise. Provide technical leadership for large-scale, complex applications - from conceptual design to performance optimisation. Influence strategic decisions across cloud-native , SaaS , and on-premises environments. Collaborate with senior stakeholders, delivery teams, and other architects to ensure alignment ...