1 to 25 of 87 Performance Optimisation Jobs in the Thames Valley

Senior Web Developer

Hiring Organisation
EC Markets UK
Location
Slough, Berkshire, UK
Employment Type
Full-time
institutional-grade liquidity and technology. About the Role We are seeking a highly capable Senior Web Developer to lead the design, development, and optimisation of high-performance websites and digital experiences that support product launches, marketing campaigns, and customer acquisition. This role combines strong technical execution with performance … capture forms, webinar registration pages, and product demo request pages Ensure all product pages are optimized for search engine visibility and user engagement Website Performance & Infrastructure for Launch Ensure website infrastructure can handle significant traffic increases during product launch periods Implement performance monitoring to maintain sub-2-second ...

Senior Software Engineer (Trading Systems)

Hiring Organisation
Beamost Ltd
Location
Slough, Berkshire, UK
Employment Type
Full-time
established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

Senior Software Engineer (Trading Systems)

Hiring Organisation
Beamost Ltd
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

Senior Software Engineer (Trading Systems)

Hiring Organisation
Beamost Ltd
Location
Reading, Berkshire, UK
Employment Type
Full-time
established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

Senior Software Engineer (Trading Systems)

Hiring Organisation
Beamost Ltd
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
Reading, Berkshire, UK
Employment Type
Full-time
they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
Slough, Berkshire, UK
Employment Type
Full-time
they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

Machine Learning Engineer

Hiring Organisation
Experis
Location
Slough, Berkshire, UK
Employment Type
Full-time
feature extraction, transformation, and model training. Deployment & Monitoring: Implement models into production environments using MLOps best practices (CI/CD, containerization, monitoring). Performance Optimization: Continuously improve model accuracy, latency, and scalability. Collaboration: Work cross-functionally with product managers and engineers to align ML solutions with business objectives. Documentation ...

Software Engineer

Hiring Organisation
Digital Waffle
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Software Engineer

Hiring Organisation
Digital Waffle
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Software Engineer

Hiring Organisation
Digital Waffle
Location
Reading, Berkshire, UK
Employment Type
Full-time
Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Software Engineer

Hiring Organisation
Digital Waffle
Location
Slough, Berkshire, UK
Employment Type
Full-time
Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Software Engineer

Hiring Organisation
Digital Waffle
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Senior API Technical Consultant (GraphQL Specialist)

Hiring Organisation
Staffworx Limited
Location
Slough, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
market rates, outside IR35, 2 days on site
decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . Expert level GraphQL , including advanced API design, schema evolution, performance optimisation. Strong automated testing frameworks like Vitest and Playwright . Proficiency with modern DevOps tooling and cloud-native architecture, including Docker , Helm , Kubernetes . ...

Senior Full Stack Engineer

Hiring Organisation
Levy Global
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

Senior Full Stack Engineer

Hiring Organisation
Levy Global
Location
Reading, Berkshire, UK
Employment Type
Full-time
Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

Senior Full Stack Engineer

Hiring Organisation
Levy Global
Location
Slough, Berkshire, UK
Employment Type
Full-time
Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

Senior Full Stack Engineer

Hiring Organisation
Levy Global
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

Senior Full Stack Engineer

Hiring Organisation
Levy Global
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

SRE Engineer Java JVM - Fintech

Hiring Organisation
Client Server
Location
Slough, Berkshire, UK
Employment Type
Full-time
driving improvements across the platform. You'll have a broad scope including hands-on coding (Java) to build tools and automation, incident response, observability, performance optimisation and operational excellence, working with large scale Java JVM distribution systems and message brokers such as Kafka and ActiveMQ, with … Site Reliability Engineer SRE (or similar) with a Java software engineering background and a deep knowledge of JVM internals and performance tuning You have a strong knowledge of Site Reliability Engineering and how to build scalable solutions to improve reliability, productivity and efficiency You have strong experience with message ...

Mobile Engineer

Hiring Organisation
Paritas Recruitment
Location
Slough, Berkshire, 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 Product Manager

Hiring Organisation
How Ya Doing
Location
Slough, Berkshire, UK
Employment Type
Full-time
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 ...