1 to 25 of 84 Remote/Hybrid Performance Optimisation Jobs in London

Shopify Developer

Hiring Organisation
Tiro Partners
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £65000/annum
development projects from design through to delivery Provide technical leadership via architecture decisions, code reviews, and mentoring Ensure best practices across CI/CD, performance optimisation, security, and accessibility Collaborate with clients, Product Managers, and Business Analysts to align technical solutions with business goals Support, inspire, and develop … Developer, or similar role delivering complex Shopify projects Familiarity with modern theme build tools such as Vite.js or Webpack Strong understanding of scalable architecture, performance optimisation, and accessibility standards Experience with DevOps workflows, GitHub, and modern CI/CD pipelines Excellent communication and leadership skills Perks & Benefits Fully ...

Shopify Developer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £65,000 per annum
development projects from design through to delivery Provide technical leadership via architecture decisions, code reviews, and mentoring Ensure best practices across CI/CD, performance optimisation, security, and accessibility Collaborate with clients, Product Managers, and Business Analysts to align technical solutions with business goals Support, inspire, and develop … Developer, or similar role delivering complex Shopify projects Familiarity with modern theme build tools such as Vite.js or Webpack Strong understanding of scalable architecture, performance optimisation, and accessibility standards Experience with DevOps workflows, GitHub, and modern CI/CD pipelines Excellent communication and leadership skills Perks & Benefits Fully ...

Software Engineering Manager - UCX (Web Frontend)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
front-end and web engineers (React) across a mix of seniority levels. Own people management responsibilities including hiring, onboarding, line management, performance management, coaching, mentoring, and career development. Foster a collaborative, inclusive, and high-performance team culture focused on continuous improvement and psychological safety. Technical Leadership & Delivery Provide … modern web technologies, including JavaScript, HTML, CSS, and React-based frameworks . Strong understanding of modern front-end architecture, including state management, routing, navigation, performance optimisation, module federation, microservice architecture and accessibility standards. Experience designing and maintaining CI/CD pipelines , using version control effectively, and working within ...

Full Stack Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
with TDD and writing automated tests before coding. Nice-to-Have Skills Experience in healthcare or public sector projects. Knowledge of monitoring tools and performance optimisation. Familiarity with microservices architecture. What you'll get in return Flexible working options available. What you need ...

Senior Software Engineer

Hiring Organisation
Beamost Ltd
Location
London, 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 ...

Security Cleared Python Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
technical solutions Participate in code reviews and contribute to continuous improvement of development standards Debug, troubleshoot, and resolve technical issues Contribute to system design, performance optimisation, and scalability Work within Agile/Scrum delivery teams (if applicable) Required Skills & Experience Strong commercial experience with Python Experience building ...

Frontend Developer

Hiring Organisation
Aqilla
Location
London, England, United Kingdom
product initiatives, with workload expected to be strong over the initial contract period. Continuation beyond this term will be subject to business needs and performance . You will work on the development and enhancement of a modern, user-focused web application, collaborating closely with UX designers, back-end engineers … alignment with design systems, accessibility standards, and service guidelines Write clean, maintainable, and testable code; participate in code reviews and knowledge sharing Contribute to performance optimisation and Front End best practices Work within Agile delivery processes, contributing to continuous improvement Maintain, refactor, and incrementally modernise existing Front ...

Principal Software Engineer (.Net)

Hiring Organisation
Primis
Location
South London, 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 ...

Software Engineering Manager - UCX (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
agile team of 5-7 mobile engineers (React Native) across a mix of seniority levels. Own people management responsibilities including hiring, onboarding, line management, performance management, coaching, mentoring, and career development. Foster a collaborative, inclusive, and high-performance team culture focused on continuous improvement and psychological safety. Technical … mobile SDLC. Proven experience of REST/GraphQL API integration with mobile applications Solid understanding of mobile application fundamentals: iOS/Android app lifecycle, performance constraints and release management Proven hands-on software engineering background across modern mobile technologies e.g. cross platform/native development. Strong understanding of modern ...

Principal Software Engineer

Hiring Organisation
OpenSolar
Location
London, UK
Employment Type
Full-time
scalability. Collaborate with product managers, designers, and engineering leadership to define and drive technical strategy and roadmap. Lead cross-functional technical initiatives, including performance optimisations, system refactoring, and migrations. Establish and enforce engineering best practices across the organisation (code quality, security, testing, CI/CD). Mentor and coach ...

Node.JS Software Engineer

Hiring Organisation
Digital Waffle
Location
City of London, London, United Kingdom
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 Software Engineer

Hiring Organisation
Digital Waffle
Location
London Area, United Kingdom
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 ...

Lead Cloud Operations Engineer

Hiring Organisation
Sky
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

DevOps Team Lead

Hiring Organisation
Sky
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Engineering Lead

Hiring Organisation
Sky
Location
Brent, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Lead Cloud Engineer

Hiring Organisation
Sky
Location
Dagenham, Essex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Infrastructure Team Lead

Hiring Organisation
Sky
Location
Beckenham, Kent, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Lead Cloud Systems Engineer

Hiring Organisation
Sky
Location
Beckenham, Kent, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Engineering Lead

Hiring Organisation
Sky
Location
Wembley, Middlesex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Engineering Team Lead

Hiring Organisation
Sky
Location
Wembley, Middlesex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Lead Cloud Systems Engineer

Hiring Organisation
Sky
Location
Southall, Middlesex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Lead Cloud Operations Engineer

Hiring Organisation
Sky
Location
Dagenham, Essex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Engineering Team Lead

Hiring Organisation
Sky
Location
Romford, Essex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Lead Cloud Operations Engineer

Hiring Organisation
Sky
Location
Southall, Middlesex, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

Cloud Infrastructure Team Lead

Hiring Organisation
Sky
Location
Islington, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...