20 of 20 Part-Time Performance Optimisation Jobs in the UK

Postgresql DBA (Manchester)

Hiring Organisation
Atos
Location
Manchester, UK
Employment Type
Part-time
billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group … with the rest of the development team to define the data model for new data feeds. You will be responsible for the maintenance and performance of the database and have ownership of the core data structures used within the application. \n Where purpose meets career: \n Flexible Work Model ...

Infrastructure Support Specialist (Reading)

Hiring Organisation
DXC Technology
Location
Reading, Berkshire, UK
Employment Type
Part-time
focus on stability, resilience, and security. You will be a key member of the OnPrem Infrastructure Team, providing expert troubleshooting, solution implementation, and performance optimisation across server, storage, and virtualisation layers. Daily duties include performance monitoring, patch management, capacity planning, image deployment, system builds, BAU operational support … project delivery, and collaboration across support teams. KEY RESPONSIBILITIES: Manage and support Windows Server, Storage, HyperV, Clustering, HCI platforms, backups, and monitoring systems. Perform performance monitoring, patching, image deployment, and system optimisation across infrastructure services. Troubleshoot issues across servers, storage, virtual machines, authentication paths, and workstations. Support enterprise ...

Senior BI Developer (Manchester)

Hiring Organisation
AJ Bell
Location
Manchester, UK
Employment Type
Part-time
define requirements, develop best-in-class data products, and produce engaging and accurate reporting used by our teams and senior managers to track performance and make strategic decisions. \n You’ll also form a key part of our wider data community, ensuring that our organisational data supports our ambitious … structures and at different velocities including near real time \n Strong knowledge of data architecture (Snowflake is preferred), SQL development, security, and process optimisation \n Advanced SQL development including query development and optimisation, stored procedures, and performance tuning \n Expert knowledge of end-to-end enterprise ...

Principal Architect (London)

Hiring Organisation
Verisk
Location
London, UK
Employment Type
Part-time
needs into scalable, secure, and high performing solutions. You will also take ownership of reviewing existing systems, identifying opportunities to simplify, refactor, and improve performance and reusability. \n This is an opportunity to have real impact across our platform and help drive architectural excellence across the organisation. \n Responsibilities … innovative and cost-effective. \n Quality Assurance: Ensure software designs and implementations follow best practices, coding standards, and appropriate testing methodologies. Guarantee high performance, security, and scalability of the architecture. \n Documentation & Communication: Create clear, comprehensive, and maintainable documentation for system architectures, workflows, and technical specifications. Communicate effectively with ...

Cloud Operations Database Engineer (Newcastle upon Tyne)

Hiring Organisation
Sage
Location
Newcastle upon Tyne, UK
Employment Type
Part-time
maintenance, and incident response with growing confidence. Begin contributing to automation scripts and service improvement initiatives. Engage with product delivery teams to support query optimisation and deployment activities. \n • 90 Days: Operate independently across the full scope of the role: database administration, performance optimisation, incident response, security … Quality and coverage of automation scripts and operational documentation \n \n Qualifications \n • Familiarity with relational databases including MS SQL, MySQL, and PostgreSQL - administration, performance tuning, and troubleshooting \n • Scripting experience for task automation using PowerShell, Bash, Python, or Ruby \n • Experience with applications deployed on AWS or Azure ...

Lead Software Engineer - Platform Engineering (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
testing applications with Detox/Appium/WebdriverIO/Playwright \n\n \n Extensive experience in modern web development, including responsive design and performance optimization \n\n \n Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications \n\n ABOUT ...

Lead Software Engineer - Frontend Engineering - React Native (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
testing applications with Detox/Appium/WebdriverIO/Playwright \n Extensive experience in modern web development, including responsive design and performance optimization \n Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications \n\n #ICBCareers #ICBEngineering \n ABOUT ...

Java Engineer with AI (London)

Hiring Organisation
Solirius Reply
Location
London, UK
Employment Type
Part-time
building systems that integrate machine learning models, data pipelines, and cloud-native services. \n This role is ideal for someone passionate about clean architecture, performance optimization, and applying AI technologies to real-world business challenges. \n Requirements \n Key Responsibilities \n \n Design, develop, and maintain high-performance … Build RESTful APIs and microservices using modern Java frameworks \n Collaborate with data scientists to deploy and scale machine learning solutions \n Optimise system performance, scalability, and security \n\n \n Implement CI/CD pipelines and ensure high code quality standards \n Work with cloud platforms to deploy ...

Software Development Engineer III (London)

Hiring Organisation
Tesco
Location
London, UK
Employment Type
Part-time
based tools. \n Technical Excellence: Promote strong software engineering practices across backend and frontend development, including CI/CD, testing, secure by default development, performance optimisation and observability. \n Support and operate live systems, troubleshoot complex issues, perform root cause analysis and continuously improve reliability, quality and speed … JavaScript/TypeScript, with experience building and maintaining production web interfaces. \n Proficiency with HTML and CSS, and an understanding of usability, accessibility and performance considerations. \n Experience working across data, backend and UI layers, collaborating with others rather than owning every layer in isolation. \n Ability to make ...

OSM Migration Service Lead (Farnborough)

Hiring Organisation
DXC Technology
Location
Farnborough, Hampshire, UK
Employment Type
Part-time
security requirements including MOD Classification Guides, ITAR and defence security standards \n Lead technical design reviews and validation testing to ensure data integrity, system performance and operational readiness \n Document architecture decisions, migration methodologies and operational procedures for knowledge transfer and continuity \n\n Team & Resource Management … complex technical projects with multiple stakeholders and tight timelines \n\n Technical Knowledge \n \n Deep understanding of IT infrastructure architecture, capacity planning and performance optimisation \n Strong knowledge of cloud platforms (AWS, Azure or equivalent) and hybrid deployment models \n Experience with configuration management, automation tools ...

Air ERP Developer (Warton)

Hiring Organisation
BAE Critical Skills
Location
Warton, Lancashire, UK
Employment Type
Part-time
data integration solutions that enable the reliable flow of information between ERP, engineering and programme management platforms. Your work will help support operational planning, performance reporting and informed strategy-making across multi-layered aerospace and defence programmes. \n Working with modern integration technologies, enterprise systems and a wide range … improving existing sessions, reports and business objects within Manufacturing, Finance and Warehousing functions \n Assisting with system integrations, testing and troubleshooting activities to maintain performance and stability \n Collaborating with analysts, consultants and end users while documenting solutions, upgrades and release activities clearly and accurately \n\n Essential Skills ...

Principal Software Engineer - Data and AI - Accelerator Business (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
planning, memory, and workflow orchestration \n Implement tools and frameworks for model versioning, experiment tracking, and lifecycle management \n Develop systems to monitor model performance and address data and model drift \n Recommend best practices for model integration and deployment patterns \n Design and implement effective testing strategies, including … unit, component, integration, end-to-end, performance, and champion/challenger tests, establish output validation best practices, recommendations and guardrails to reduce hallucinations. \n Ensure platform compliance with data privacy, security, and regulatory standards \n Mentor team members on platform design principles and best practices \n Guide colleagues ...

ERP Interface Engineer (Warton)

Hiring Organisation
BAE Critical Skills
Location
Warton, Lancashire, UK
Employment Type
Part-time
data integration solutions that enable the reliable flow of information between ERP, engineering and programme management platforms. Your work will help support operational planning, performance reporting and informed strategy-making across multi-layered aerospace and defence programmes. \n Working with modern integration technologies, enterprise systems and a wide range … ensure reliable information flow between enterprise systems \n Developing interfaces and data mappings that translate business requirements into effective technical solutions \n Monitoring integration performance, investigating data issues and implementing fixes to maintain service reliability \n Collaborating with architects, analysts and system owners to support business-critical data ...

Applied AI Engineer - Agentic Systems - Senior Associate (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
measurable business impact. \n Analyze data to inform agent capabilities, optimize retrieval, and drive data-driven decision-making; conduct A/B tests and performance evaluations. \n Mentor and guide team members on agent frameworks, LLM usage, safety, and best practices. \n\n Required Qualifications, Capabilities, and Skills … quantization and distillation. \n Familiarity with prompt optimization frameworks and building prompt pipelines and evaluation suites. \n Experience with distributed computing, data sharding, and performance optimization. \n Hands-on experience with AWS services related to AI deployment and workflow orchestration. \n\n Why Join Us? \n We offer ...

React UI Senior Lead Engineer - Synergy EMEA (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
code quality, including writing and maintaining test cases with frameworks such as Jest, Cypress, and @testing-library/react, as well as conducting performance testing. \n Solid understanding of web performance optimization and diagnostics. \n Experience with Python 3 or higher. \n\n ABOUT US \n J.P. Morgan ...

Software Engineer III (UI) - Digital Markets Execution Technology (DMET), Execute (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
features for Execute, supporting complex, high-throughput trading workflows. \n Contribute to UI architecture and design for latency- and availability-sensitive experiences, balancing performance, security, resiliency, and usability. \n Integrate UI capabilities with APIs and real-time data services, collaborating with back-end, platform, and SRE partners to deliver … Diagnose and resolve production issues using structured troubleshooting, logging, metrics, and alerting; contribute to incident learnings and preventative improvements. \n Improve front-end performance and reliability through profiling, optimization, and proactive bottleneck identification. \n Collaborate effectively across globally distributed teams, contributing to shared standards and reusable components to increase ...

UI Senior Lead Software Engineer - Commodities (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
design and delivery of user interface capabilities across Execute, from discovery to production support \n Set front-end technical direction, including architecture, standards, performance, and testing strategy \n Partner with product, business stakeholders, and designers to translate trading workflows into intuitive UX \n Drive quality through thorough testing, troubleshooting … performance optimization \n Build high-performance, real-time UIs with strong responsiveness and stability \n Establish and evolve scalable UI architecture, including component libraries and shared platform services \n Drive engineering excellence through code reviews, quality gates, CI/CD, observability, and operational readiness \n Ensure secure, compliant ...

Lead Software Engineer (UI) - Digital Markets Execution Technology (DMET), Execute (London)

Hiring Organisation
J.P. Morgan
Location
London, UK
Employment Type
Part-time
design and delivery of user interface capabilities across Execute, from discovery to production support \n Set front-end technical direction, including architecture, standards, performance, and testing strategy \n Partner with product, business stakeholders, and designers to translate trading workflows into intuitive UX \n Drive quality through thorough testing, troubleshooting … performance optimization \n Build high-performance, real-time UIs with strong responsiveness and stability \n Establish and evolve scalable UI architecture, including component libraries and shared platform services \n Drive engineering excellence through code reviews, quality gates, CI/CD, observability, and operational readiness \n Ensure secure, compliant ...

Finance Business Partner - Marketing (London)

Hiring Organisation
Wise
Location
London, UK
Employment Type
Part-time
fast-growing business. \n In this role, you will collaborate with our Finance Business Partnering team to support Marketing teams with budget management and performance optimisation. You will use data to build a clear story around our results, manage communications, and report to various stakeholders to ensure our growth … forecast variance comparisons to drive accuracy, clear decision making, and strategy development. \n \n Partner with Marketing leads to help them understand their performance and cost base, acting as a trusted advisor to assist them with critical decision making. \n\n This role will give you the opportunity ...

Senior Android Engineer (London)

Hiring Organisation
Just Eat
Location
London, UK
Employment Type
Part-time
impact millions of daily active users. You will collaborate closely with Product Managers, UI/UX Designers, and Backend Teams to build intuitive, high-performance features. \n Key Responsibilities: \n \n \n Feature Development: Lead the design and implementation of complex, scalable, and maintainable features using modern Android technologies. … architecture (MVVM/Clean Architecture). Maintain exceptionally high code quality through rigorous code reviews, automated testing, and CI/CD pipelines. \n \n Performance Optimization: Continuously monitor, profile, and optimize app performance, ensuring minimal battery usage, fast startup times, and smooth UI rendering. \n \n Technical Leadership ...