1 to 25 of 37 Performance Optimisation Jobs in the South East

Java Software Engineer

Hiring Organisation
Tata Consultancy Services
Location
Burgess Hill, England, United Kingdom
Unix commands and shell scripting. Experience with code quality tools such as Sonar and knowledge of design patterns. Experience with code reusability and performance optimisation. Rewards & Benefits TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance ...

Front-End Developer

Hiring Organisation
William Reed
Location
Gatwick, West Sussex, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
technical functionality and escalating critical gaps in project requirements or processes, when necessary, to proactively address issues Testing and debugging designs to ensure seamless performance and adherence to accessibility standards (e.g. WCAG compliance) Optimising website performance to meet Core Web Vitals benchmarks, including Largest Contentful Paint (LCP), First … Input Delay (FID), and Cumulative Layout Shift (CLS) Leveraging modern development techniques such as lazy loading, efficient asset management, and CSS/JS optimisation to enhance user experience and speed Working alongside testers in UAT to ensure our products work as intended Efficiently triaging and managing assigned tickets, maintaining ...

Senior Data Engineer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £85,000 per annum
Data Factory). Experience designing and managing cloud data platforms (Snowflake essential; AWS/Azure/GCP desirable). Solid data modelling knowledge and performance optimisation skills. Awareness of data governance, security, and regulatory compliance . Ability to work closely with technical and business teams to deliver impactful ...

Web GIS Lead

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £390 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 ...

Senior Laravel Developer

Hiring Organisation
Rise Technical Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
using Laravel, Vue, TypeScript, and MySQL - Lead the delivery of complex features and contribute to system architecture and technical decision-making - Improve automated testing, performance, security, and overall code quality - Build and maintain high-quality APIs and frontend SPA/PWA interfaces - Mentor developers and support best practice across … engineering team The Person: - Strong experience with Laravel, PHP, and modern JavaScript frameworks such as Vue and TypeScript - Solid understanding of application architecture, performance optimisation, and secure coding practices - Experience working with AWS services and containerised deployment environments - Excellent problem-solving skills with the ability to communicate technical ...

Technology Lead

Hiring Organisation
Addition
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
technologies and recommend innovations aligned with business objectives Cloud & Infrastructure Design, deploy, and manage cloud-based solutions, primarily within Microsoft Azure Oversee system availability, performance, security, and disaster recovery Ensure infrastructure is scalable, cost-efficient, and compliant with industry standards Data & Reporting Design and oversee data architecture, pipelines … including HTML, C++, and modern web frameworks Provide technical oversight for websites, portals, and Learning Management Systems (LMS) Ensure high standards of code quality, performance, accessibility, and security Review architecture, code, and integrations to ensure maintainability and scalability LMS & Website Management Lead the technical development and ongoing enhancement ...

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
£60,000
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 ...

Senior Data Engineer

Hiring Organisation
VIA MATCH LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £120,000 per annum
with the modern data stack, including dbt, Airflow (or similar) and Python Solid experience with AWS and/or Azure Strong SQL skills and performance optimisation experience Familiarity with CI/CD, DevOps and DataOps practices Confident communicator, comfortable engaging with senior technical and non-technical stakeholders Nice ...

Data Engineering Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £100,000 per annum
governance, and actionable insights across the business. You will lead a team responsible for building and maintaining data models, pipelines, and workflows that enable performance optimization and strategic decision-making. The role requires balancing hands-on technical contributions with managerial oversight, ensuring high standards of delivery and continuous improvement. ...

Senior UI Developer

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £150,000 per annum
used by Sales and Trading Partner closely with FX Traders, Sales, and Quant/Tech teams to define requirements and deliver solutions Deliver high-performance, responsive UIs suitable for latency-sensitive trading environments Collaborate with global development teams across London and Asia Contribute proactively to product evolution and platform … within financial markets FX trading systems experience highly advantageous Experience with testing frameworks (Jest, Cypress, etc.) and CI/CD pipelines Strong focus on performance optimisation and UI responsiveness Confident working directly with front-office stakeholders Bachelor's degree in Computer Science, Engineering, or related discipline Desirable Backend ...

Web Developer

Hiring Organisation
Office Angels
Location
Hassocks, West Sussex, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
detail-oriented Web Developer & Digital Experience professional to join their global marketing function. This role will take ownership of multiple WordPress websites, enhancing functionality, performance and user experience across international markets. You will work closely with creative and marketing teams to translate design concepts into engaging, responsive digital experiences … internal communications platforms and email marketing templates within Salesforce Marketing Cloud. Key Responsibilities Manage and optimise multiple WordPress websites Enhance UX/UI, site performance, SEO and accessibility Build and maintain responsive front-end components (HTML, CSS, JavaScript) Collaborate on landing pages, product pages and interactive digital experiences Support ...

Quantum Software Engineer (C++)

Hiring Organisation
CT19
Location
Oxfordshire, England, United Kingdom
orchestration software and compilers Implement reliable communication and synchronization protocols across embedded and distributed system components Translate experimental and system-level requirements into high-performance, testable software features in collaboration with physicists and system architects Contribute to diagnostics, calibration, and validation routines for hardware performance monitoring Build tooling … hardware-in-the-loop control environments Familiarity with timing and synchronization systems (e.g. PTP) and communication stacks Proven ability in system integration, testing, and performance optimisation Preferred Experience Background in scientific instrumentation, lab automation, or quantum hardware control systems Experience with FPGA-based systems , DAC/ADC control ...

Principal Engineer (Education)

Hiring Organisation
IRIS Recruitment
Location
Slough, Berkshire, South East, United Kingdom
Employment Type
Permanent
with architecture and Central teams to continually evolve the technical strategy Utilise understanding of cloud technologies to help teams engineer for high availability and performance of the platform Support project teams on the right pragmatic trade-offs between rapid delivery and long term supportable code Drive and support … engineering processes such as CI/CD, Continuous Delivery and Agile. Deep knowledge and understanding of core advanced topics Eg: async, http, memory management, performance optimisation, profiling and debugging applications Minimum 7 Years Experience working across multiple tech stacks Positive approach to problem solving Minimum 5 Years Experience ...

SAS Data Engineers

Hiring Organisation
F5 consultants
Location
Worthing, West Sussex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
analytics) with monitoring, alerting and SLAs Working closely with product teams and client stakeholders to refine requirements and align solutions with non-functional requirements (performance, security, cost) Supporting incident resolution and ensuring service continuity Contributing to engineering communities of practice, mentoring colleagues and sharing knowledge Actively participating in Agile … Solid understanding of data modelling and ETL Experience with batch scheduling and job orchestration (Airflow and/or native SAS schedulers) Knowledge of SAS performance optimisation, including database connectivity Experience collaborating with Architects to design robust, scalable solutions Ability to embed CI/CD best practices into development ...

Business Intelligence Analyst

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £348 per day
organisation has a consistent, trusted reporting ecosystem. What you'll need to succeed Technical Skills: Strong experience in Power BI: data modelling, DAX, performance optimisation, and dashboard design. Hands-on experience with Google Cloud Platform (GCP), ideally BigQuery. Proficiency in SQL for data transformation and optimisation. Experience with ...

BI and Data Lead - Outside IR35

Hiring Organisation
Vermillion Analytics
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£370 per day
SSAS Cubes, Snowflake, Azure Data Factory, and HVR Collaborate with emerging Data & AI teams to shape future capabilities Maintain platform health, data quality, and performance optimization What You'll Need 8-12 years in Data/BI/Analytics roles 3+ years in a technical leadership position Strong hands ...

Software Engineer - Aerospace - Oxfordshire

Hiring Organisation
Bond Williams Limited
Location
Kidlington, Oxfordshire, South East, United Kingdom
Employment Type
Permanent
company is building a unified software platform that consolidates commercial and internal engineering tools. This platform will accelerate their design exploration, enabling faster performance optimization and rapid scaling for new applications. They are seeking a motivated Software Engineer to develop this platform. Working alongside Aerothermal Designers and Mechanical Engineers ...

Data Scientists x 3

Hiring Organisation
Hays Specialist Recruitment Limited
Location
West Drayton, Middlesex, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £1,000 per day
good where you have worked in optimisation. Aviation operational environment would be the pinnacle! We want Data Scientists that have experience building an optimisation model. Are you trying to maximise or minimise cost? What are you trying to do? This is the balance of art and science. You must … have the knowledge to look at what algorithm is correct and work out the constraints of the optimisation project. You will design and implement predictive and prescriptive models for Maintenance, Repair, Overhaul AI Solutions. Performing exploratory data analysis and feature engineering. Collaborate with Data Engineers to ensure data readiness ...

Data Scientist

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Python and ML frameworks (TensorFlow, PyTorch). Strong statistical and analytical skills. Experience with a wide range of Data Science techniques (e.g. ML, Optimisation, Simulation, GenAI, etc.). Demonstrated ability to take models from design through to production deployment, including performance optimisation, monitoring, and integration into business ...

Senior Communications System Engineer

Hiring Organisation
Mars Recruitment
Location
Oxford, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£80000 - £110000/annum
validating algorithms using Software Defined Radios (SDRs); collaborating with other systems and software engineers to ensure seamless integration of new designs and optimised performance; documenting designs, simulations, and test results, and contributing to technical reports. Essential experience & skills: Master’s or Ph.D. (or equivalent experience) in Electrical Engineering, Communications … following as applied in communication settings: digital signal processing, error-correcting codes, deep neural networks Proficiency in C++ for fixed-point implementation and performance optimisation Experience with SDR platforms and real-time prototyping If you’re a Senior Communications Engineer with an expertise in wireless communications ...

AI Product Owner

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £115,000 per annum
teams through complex product development challenges. Collaborate with stakeholders to gather and prioritize requirements based on business impact and feasibility. Oversee continuous testing and performance optimization to maintain high product standards. Monitor emerging technology trends and integrate innovative approaches into product development. Influence strategic decisions, manage risks, and ensure ...

Viva Consultant - £500PD Inside IR35 - Hybrid

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
accuracy, security, and compliance with organisational policies and privacy standards. Document data models, definitions, and analytics logic to support transparency and reuse. Continuously improve performance, reliability, and scalability of analytics solutions. Skills & Experience Strong experience designing and delivering analytics solutions end-to-end, including both strategy and implementation. Hands … expertise with Power BI (data modelling, DAX, visual design, performance optimisation). Experience working with Microsoft 365 data, ideally including Microsoft Graph and Viva Insights. Ability to define KPIs and analytics frameworks in ambiguous or evolving environments. Proven ability to engage stakeholders, influence decisions, and drive alignment. Strong ...

Full-Stack Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £550 to £600 per day
other database services for data storage and management. Build RESTful APIs and implement API management and security using Azure API Management or similar tools. Performance Optimization and Monitoring: Identify performance bottlenecks and optimize application performance using Azure diagnostics and monitoring tools, such as Azure Monitor, Application Insights ...

Full Stack Developer .NET

Hiring Organisation
Infoplus Technologies UK Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £400 to £550 per day
other database services for data storage and management Build RESTful APIs and implement API management and security using Azure API Management or similar tools Performance Optimization and Monitoring: Identify performance bottlenecks and optimize application performance using Azure diagnostics and monitoring tools, such as Azure Monitor, Application Insights ...

Data Engineer (Automation)

Hiring Organisation
Network IT
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
supporting live data pipelines, resolving issues in line with ITIL best practices , and implementing proactive alerting and self-healing mechanisms. Identifying and implementing performance optimisations across data pipelines, queries, and reporting workloads. Supporting data governance processes , including data archiving, masking, encryption, and versioning, with opportunities to integrate AI-driven … this role, you will bring: Strong commercial experience delivering end-to-end data engineering and automation solutions in complex environments. Advanced SQL skills, including performance tuning and optimisation across large datasets. Knowledge of Python or R for data processing or analytics. Hands-on experience with data integration ...