1 to 25 of 45 Performance Optimisation Jobs in the South East

Data Engineer

Hiring Organisation
Avencia Consulting
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
analytical use cases. Develop canonical, reusable datasets (curated marts) for Analytics, Actuarial, and Finance. Own the technical modelling layer in Snowflake including schema design, performance optimisation, cost control, and warehouse governance. Collaborate closely with Analytics Engineers using dbt, ensuring transformations are production-grade, tested, and fully documented. Data … feeds for analytics requirements. Partner with Data Analysts to accelerate dashboarding and advanced analytics. Collaborate with Technology teams to ensure secure, reliable platform operation. Performance, Optimisation & Cost Efficiency Optimise Snowflake/SQL/Python query performance, warehouse sizing, storage costs, and compute efficiency. Implement workload separation, time ...

WordPress Developer

Hiring Organisation
Reeta Vickers Recruitment Ltd
Location
Fleet, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £48,000 per annum
create and optimise landing pages to support a range of digital marketing campaigns, ensuring they are conversion-focused and aligned with campaign objectives. Website Performance & Optimisation A key part of your role will involve ensuring all websites are fast, accessible, and user-friendly. You’ll take ownership … performance optimisation, ensuring sites meet modern web standards and deliver an excellent user experience. Ongoing Website Maintenance You will manage the ongoing upkeep of websites, including updating plugins, monitoring security, and ensuring all systems remain stable and up to date. You’ll troubleshoot and resolve technical issues efficiently ...

React Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
user journeys. * Implement efficient state management patterns, handling both client and server state, including caching, error handling, and data synchronisation strategies. * Ensure front-end performance is optimised through techniques such as code splitting, virtualisation, bundle optimisation, and rendering efficiency improvements. * Collaborate on API design through a Backend … Query or equivalent). * Demonstrable experience building data-intensive UIs such as dashboards, analytics views, and high-interaction workflows. * Strong awareness of front-end performance optimisation techniques and debugging performance issues in production systems. * Experience implementing automated testing strategies with a pragmatic approach to test coverage ...

Linux HPC Architect

Hiring Organisation
Henderson Scott
Location
Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£75,000
+ Bonus Experience needed: We're looking for an experienced HPC or Linux infrastructure specialist with a strong background in designing and scaling high-performance computing environments, including clusters, storage, and high-speed networking. About the role: In this role, you'll be responsible for designing and evolving high … performance computing platforms that support complex simulations and data-intensive workloads. You'll take ownership of the HPC architecture, working across compute, storage, and networking to ensure systems are scalable, high-performing, and aligned to future demand. Key Responsibilities: Define and deliver the HPC architecture roadmap aligned to business ...

Site Reliability Engineer

Hiring Organisation
Addition
Location
Hampshire, England, United Kingdom
deployment and operational processes Taking new technologies from proof-of-concept through to production rollout Collaborating with engineering, DevOps and operations teams to optimise performance and reliability Implementing monitoring, alerting and system management best practices Supporting platform architecture and contributing to design decisions for new services Conducting security assessments … hardening systems and embedding secure-by-design principles Troubleshooting and resolving performance or system issues across complex environments Creating and maintaining high-quality technical documentation Mentoring team members and promoting strong DevOps ways of working Main Skills Needed: Strong Linux administration (e.g. Ubuntu) and solid Windows infrastructure knowledge Experience ...

Web Developer

Hiring Organisation
ARC IT Recruitment Ltd
Location
Brighton, East Sussex, South East, United Kingdom
Employment Type
Permanent
Salary
£60,000
RESTful and SOAP APIs with third-party systems Design and optimise SQL and NoSQL databases Support full SDLC including testing, deployment, and maintenance Monitor performance, troubleshoot issues, and drive continuous improvements Required Skills & Experience 35 years experience in software or application development Strong proficiency in C#, ASP.NET/ASP.NET … Core Experience with modern frontend frameworks (Angular, React, or Vue.js) Solid understanding of REST APIs, microservices, and performance optimisation Experience with SQL Server and exposure to NoSQL databases Hands-on experience with AWS and/or Azure Familiarity with CI/CD pipelines and Infrastructure as Code (e.g. ...

Front End Developer

Hiring Organisation
Constant Recruitment Ltd
Location
CT20, Sandgate, Kent, United Kingdom
Employment Type
Permanent
Salary
£30000/annum
Front-End Developer (MVC/Web Performance) Folkestone £30,000+ DOE (flexible for the right person) Do these questions sound like you? Do you enjoy turning designs into clean, responsive, high-performing websites? Have you worked within a .NET/MVC environment and are confident bringing front-end builds … into production? Do you like working at pace, solving problems, and seeing the real impact of your work on user experience and performance? If so, this could be a strong next step. The Opportunity We are recruiting for a Front-End Developer to join a growing, technology-driven business ...

Application Development & Support Manager - Core Banking

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
processing Provide fix-on-fail support and coordinate issue resolution Work closely with infrastructure teams to support IBM Power Systems performance and platform optimisation Application Delivery Lead development and delivery of application changes and enhancements Manage the transition of new solutions from project delivery into BAU support models … Application Support Ensure reliable support for core banking and business applications Oversee incident management, root cause analysis, and service improvement Implement application monitoring and performance optimisation Coordinate upgrades, patches, and maintenance with third-party vendors Team Leadership Lead and mentor a small team of developers and application support ...

Web GIS Lead

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £300 to £400 per day
spatial indexing, database optimization, and schema design. Familiarity with cloud environments such as AWS, Azure, or equivalent platforms. Experience with infrastructure monitoring tools and performance optimization. Additional Competencies Strong problem-solving and analytical skills. Ability to work independently and manage multiple priorities. Experience supporting team members ...

Lead Data Engineer - Hybrid working

Hiring Organisation
Ashdown Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £90,000 per annum
across Snowflake, Databricks, and cloud environments (AWS/GCP). Working closely with Data Science, Product, and Analytics teams, you’ll ensure reliable, high-performance data flows that power AI and analytics products. Alongside deep technical delivery, you’ll be responsible for leading the junior engineers and near shore … architectural direction and best practices. Key Responsibilities Design and maintain scalable data architectures across Snowflake and Databricks Lead schema design, dimensional modelling, and SQL performance optimisation Build robust ETL/ELT pipelines Develop resilient API ingestion workflows Implement data quality frameworks and enforce data contracts Build CI/ ...

Account Executive

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 - £35,000 per annum
About the Company Lynx Recruitment are supporting an award-winning integrated brand performance agency, bringing together specialists across media, creative, social, analytics, UX, data science, search marketing, and PR, who help both consumer and B2B brands navigate an increasingly complex digital landscape through a combination of strategic planning, cutting … looking for an Account Executive to drive the planning and execution of high-impact growth strategies. This role blends retail fundamentals, advertising performance, and emerging technologies such as AI-driven optimisation and advanced media measurement. You will manage client accounts, ensuring operational excellence across retail and advertising activities. ...

Data Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Surrey, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
workflows Familiarity with cloud data platforms (AWS, Azure, GCP) and data pipeline orchestration tools (Airflow, Prefect, etc.) Understanding of data modelling, schema design, and performance optimisation Experience with agile development methodologies, including Scrum and Kanban Familiarity with version control tools such as Git Reasonable Adjustments: Respect and equality ...

Full Stack Node.JS Developer - Reading - Hybrid

Hiring Organisation
Transparent Technology
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
React/Redux front end, working with complex datasets, real-time dashboards, and advanced visualisations. You'll be involved in API design, PostgreSQL performance optimisation, frontend state management, CI/CD pipelines, and cloud infrastructure, while collaborating closely with Product, Data, and commercial stakeholders. The company's mission ...

Mid-Level NodeJS Engineer

Hiring Organisation
WhoCanFixMyCar.com Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
services using Node.js and TypeScript. Implement features based on product requirements and technical specifications. Ensure smooth integration with existing systems and APIs. Contribute to performance optimization, scalability, and security improvements. Code Quality & Collaboration: Write clean, maintainable, and well-tested code. Participate in code reviews and follow established best practices. ...

Quality Assurance Test Engineer

Hiring Organisation
DCS Engineering
Location
Oxfordshire, England, United Kingdom
CodePipeline. Develop and maintain Software‐in‐the‐Loop and Hardware‐in‐the‐Loop test environments, including automated deployment across multiple platforms. Integrate performance testing techniques across multiple types of simulation (e.g. Gazebo, rosbag‐based workflows). Collaborate with hardware engineers, systems architects and AI/ML specialists to integrate … embedded software and test frameworks into the overall system. Participate in code reviews, performance optimisation and comprehensive testing (unit, integration and system level) to maintain high quality standards. Develop, implement and execute test strategies and verification activities for safety‐critical software, including static and dynamic code analysis using ...

Q&A Test Engineer

Hiring Organisation
DCS Recruitment
Location
Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
CodePipeline.? Develop and maintain Software-in-the-Loop and Hardware-in-the-Loop test environments, including automated deployment across multiple platforms.? Integrate performance testing techniques across multiple types of simulation (e.g. Gazebo, rosbag-based workflows).? Collaborate with hardware engineers, systems architects and AI/ML specialists to integrate … embedded software and test frameworks into the overall system.? Participate in code reviews, performance optimisation and comprehensive testing (unit, integration and system level) to maintain high quality standards.? Develop, implement and execute test strategies and verification activities for safety-critical software, including static and dynamic code analysis using ...

SAP S/4HANA Basis Consultant - SC Cleared

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
large-scale, enterprise SAP transformation programme within a highly regulated environment. This is a hands-on, operational role focused on stability, resilience, security, and performance of a complex SAP S 4HANA landscape. You will play a key role in the administration, configuration, and ongoing operation of SAP systems , working … Basis operations Manage SAP landscapes across development, quality, and production environments Own transport management, kernel upgrades, support package implementation, and performance tuning activities Use SAP Solution Manager to support IT Service Management, Change Request Management (ChaRM), and Focused Build Support a DevOps-driven SAP delivery model, working with tools ...

Senior Data Engineer - Microsoft Fabric

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
architecture, develop scalable analytics solutions, and stay hands-on. Responsibilities include delivering Fabric solutions (OneLake, Lakehouse, Warehouses, Power BI), leading architecture and performance optimisation, and enabling advanced analytics and machine learning with Fabric and Azure ML. Key skills and responsibilities, Demonstrated hands-on experience with Microsoft Fabric … leadership and effective stakeholder engagement. Design and deliver comprehensive Fabric solutions, including OneLake, Lakehouse, Warehouses, and Power BI. Lead architectural design, capacity planning, and performance optimization efforts. Facilitate advanced analytics and machine learning initiatives utilising Fabric and Azure ML. Implement governance, security, and DevOps best practices. Mentor engineers ...

Trading Data Engineer

Hiring Organisation
Frossell Recruitment
Location
Abingdon, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 per annum
ensuring generation and storage assets deliver the correct contracted schedules. Design and manage Delta Lake tables and SQL databases, applying strong data modelling and optimisation strategies. Develop monitoring dashboards and alerting to ensure transparency around pipeline health and data freshness. Implement data validation and reconciliation checks across multiple market … data sources. Optimise pipeline performance and manage compute costs through efficient Spark and SQL design Produce clear documentation for data schemas, pipelines and operational processes. Contribute to Git-based development workflows and CI/CD pipelines. Support internal teams by ensuring settlement and industry data is delivered accurately ...

Front End Game Developer

Hiring Organisation
1X2 Network
Location
Brighton, England, United Kingdom
Game of the Year 2020 , Branded Megaways ). Work closely with Game Designers , Artists , and Mathematicians to deliver polished, engaging slot experiences. Ensure performance optimisation across devices and browsers. Follow best practices for version control (Git/Bitbucket) and code documentation. Collaborate in an Agile development environment … challenges of regulated markets. Preferred: A degree in Computer Science, Game Development, or a related field. Experience with asset pipelines, particle systems, and game performance tuning. The Benefits of Working at 1X2 Network • Competitive salary • Long-term career prospects with development opportunities – the role is what you make ...

KPI Developer

Hiring Organisation
Technical Staffing Resources Limited
Location
Leatherhead, Surrey, South East, United Kingdom
Employment Type
Contract
current service to new service. This went live October 2025 and there is now a multi-organisational Programme underway of hypercare, stabilisation and optimisation of platforms and services. Led by the senior team that mobilised the platform, KBR have in place a multi-disciplinary technology team deployed to deliver … Devops Agile Environment with differing skill levels. Experience of Implementing advanced DW techniques, including but not limited to SCD, index strategies, Dimensional Modelling, Performance Optimisation Able to communicate a technical solution to a wide audience of technical and non-technical colleagues and clients. Qualifications/Certifications Requirements Educational ...

Technical Manager

Hiring Organisation
Tech Mahindra
Location
Reading, England, United Kingdom
Cypress, JIRA, Xray, Postman, AI enabled Testing Solution (AVO, AccelQ, UiPath), Plutora, Apwide Golive , AWS/Azure/GCP basic fundamentals, Unix shell Scripting,Performance Engineering Methodology, SRE, LoadRunner, J-Meter, Dynatrace, Splunk. Gremlin, Postman, Performance Testing process, Telecom Domain, Thought Leadership and Program Management Key Responsibilities: Design … test environment infrastructure, including hardware, software, and network resources. Environment Design: Design and configure test environments to meet the needs of testing teams. Design Performance Test Strategy and Plans: Develop comprehensive performance test strategies and plans to be implement across program level. Thought Leadership : Keep up to date ...

Senior Business Intelligence Manager

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
Gillingham, Kent, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
Proven experience in a Senior BI/BI Manager/Data Analytics leadership role Strong hands-on expertise in Power BI (data modelling, DAX, performance optimisation) Advanced SQL skills Demonstrated experience leading and developing technical teams Strong understanding of GDPR and data governance frameworks Experience with MDM tools ...

Senior Data Manager

Hiring Organisation
Pearson Whiffin IT & Digital
Location
Gillingham, Kent, South East, United Kingdom
Employment Type
Permanent
Salary
£75,000
Proven experience in a Senior BI/BI Manager/Data Analytics leadership role Strong hands-on expertise in Power BI (data modelling, DAX, performance optimisation) Advanced SQL skills Demonstrated experience leading and developing technical teams Strong understanding of GDPR and data governance frameworks Experience with MDM tools ...

Business Intelligence Developer

Hiring Organisation
Pearson Whiffin IT & Digital
Location
Birchington, Kent, South East, United Kingdom
Employment Type
Permanent
Salary
£40,000
Develop calculations and measures using DAX to support advanced analytics. Integrate data from multiple sources using Microsoft Business Intelligence tools . Ensure data accuracy, performance optimisation, and governance of BI solutions. Collaborate with business stakeholders to gather requirements and translate them into technical solutions. Support and enhance existing ...