101 to 125 of 269 Performance Optimisation Jobs in the UK

Senior Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
Senior Systems Engineer | Rust 📍 London/Hybrid 💰 £140k – £250k + Performance Bonus + Equity This client is building high-performance infrastructure powering decentralised markets. The engineering environment is extremely lean, operating in domains where execution speed, system reliability, and infrastructure quality are vital. Engineers are responsible for designing … concurrent and multi-threaded systems Building integrations with external protocols and real-time networks Developing infrastructure orchestration and co-ordination systems Profiling and optimising performance-sensitive applications Designing resilient systems capable of operating under unpredictable workloads Engineers are expected to take ownership across the full lifecycle — architecture, implementation, optimisation ...

Frontend Developer

Hiring Organisation
ARC IT Recruitment
Location
Brighton, Sussex, United Kingdom
Employment Type
Permanent
Salary
GBP 40,000 - 50,000 Annual
JavaScript experience, including vanilla JavaScript Vue or similar Front End framework experience Experience building accessible, user-friendly interfaces Understanding of Core Web Vitals and performance optimisation Strong communication skills Nice to have: AWS Python MongoDB Hybrid working with a minimum of one day per week in the Brighton ...

Senior Data Consultant

Hiring Organisation
Searchability NS&D
Location
London Area, United Kingdom
with core data engineering tools and technologies (e.g. ETL/ELT pipelines, data warehouses, orchestration tools) Strong understanding of data modelling, data quality, and performance optimisation Desirable Experience Experience with Palantir (Foundry, Gotham) Willingness and aptitude to learn Palantir technologies on the job Background working in defence, government ...

Senior Business Intelligence Manager

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
Kent, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 75,000 Annual
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 Business Intelligence Manager

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
Gillingham, Rainham, Medway, Kent, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/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 ...

Full Stack Developer

Hiring Organisation
Erin Associates
Location
Blackburn, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
/CD workflows Collaborating with product, leadership and marketing teams Mentoring junior developers and providing code reviews Overseeing integrations with APIs and driving performance optimisation The following skills and experience are required: Strong full stack web development experience Strong experience with JavaScript, TypeScript and modern frameworks (React) Experience ...

Full Stack Developer

Hiring Organisation
Erin Associates
Location
Aberdeenshire, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£45,000
/CD workflows Collaborating with product, leadership and marketing teams Mentoring junior developers and providing code reviews Overseeing integrations with APIs and driving performance optimisation The following skills and experience are required: Strong full stack web development experience Strong experience with JavaScript, TypeScript and modern frameworks (React) Experience ...

Front-End Developer

Hiring Organisation
Erin Associates
Location
Blackburn, Lancashire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£45,000
modern React and TypeScript Collaborating with product, leadership and marketing teams Mentoring junior developers and providing code reviews Overseeing integrations with APIs and driving performance optimisation The following skills and experience are required: Strong front-end web development experience Strong experience with React Experience providing scalable front ...

Senior C++ Software Engineer

Hiring Organisation
Spyrosoft Ltd
Location
United Kingdom
Employment Type
Permanent, Work From Home
confident communicator with a Growth Mindset Tools and Technology C++ Agile development methodologies and collaborative delivery environments Familiarity with SQL server, relational databases or performance optimisation Tight coupling to underlying business logic given its age and language Experience A degree in Computer Science, Software Engineering, or a related ...

Lead Data Engineer

Hiring Organisation
Inspire People
Location
Swansea, Neath Port Talbot, Wales, United Kingdom
Employment Type
Permanent
Salary
£80,000
best practice - Identify and enable reuse of data flows across services - Design and assure robust data models and integrations to improve data quality - Lead performance optimisation across data platforms, balancing cost, scalability and reliability - Apply systems integration expertise to deliver end-to-end data solutions - Champion data engineering ...

Senior Developer - Microsoft Platform

Hiring Organisation
NICE
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£49387 - £56515/annum
well as the functional when designing solutions Actively participate in developing and managing agile backlogs of work Support live services through monitoring, incident resolution, performance optimisation and continual improvement, including rota’d 3rd line support Share knowledge, mentor colleagues, and support the development of Microsoft platform capability within ...

Sr. Platform Engineer

Hiring Organisation
Ascendion
Location
Chester, Cheshire, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 70,000 Annual
RESTful APIs and services using Node.js Collaborate with DevOps teams to improve CI/CD pipelines and platform reliability Apply application construct experience, including performance optimization and implementation of security best practices (e.g., secure coding, threat mitigation, and system hardening ...

Senior Data Platform Owner

Hiring Organisation
Costa Coffee
Location
St. Albans, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
security, and product teams. Ensure alignment to enterprise strategy and business priorities Improving reliability, quality, and cost efficiency – Lead initiatives in observability, governance, and performance optimisation. Ensure the platform is resilient, trusted, and cost-effective Who you are We’re looking for a senior data leader with a strong ...

Power BI Developer

Hiring Organisation
Reed
Location
Middlesex, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum, Inc benefits
reporting. Key Responsibilities Own and manage the end-to-end Power BI environment (datasets, semantic models, dataflows, gateways, reporting) Design and build scalable, high-performance data models Lead ERP data integration and ETL processes Develop and optimise SQL queries, views, and stored procedures Create and enhance advanced DAX calculations … Establish and maintain BI governance, security, and best practices Troubleshoot data integrity and performance issues Collaborate with stakeholders across Finance, Sales, Operations, and Supply Chain Act as a technical SME for BI architecture Skills & Experience 10+ years’ Power BI experience with strong backend focus Advanced SQL Server expertise (optimisation ...

Software Engineer

Hiring Organisation
Metric
Location
City of London, London, United Kingdom
develop and maintain the software platform powering next-generation quantum computing systems. Working closely with software, hardware, and research teams, you will build high-performance, production-grade systems that directly impact customers and drive innovation. Key Responsibilities: Develop and maintain systems-level software for advanced computing platforms. Build … monitoring, and observability tooling. Lead technical projects from design through deployment. Collaborate with product, engineering, and research teams to deliver new capabilities. Improve system performance, reliability, and scalability. Skills & Experience: Essential Strong Python development experience, with C++ and/or Rust highly desirable. Experience building and supporting production systems. ...

Principal FPGA Engineer

Hiring Organisation
X4 Technology
Location
Hampshire, England, United Kingdom
highly talented team working at the cutting edge of AI compute architectures. This is an opportunity to play a key role in designing high-performance FPGA solutions that will power advanced machine learning and neural network applications. The Role You will be responsible for the design, implementation, optimisation … neural network acceleration. Working alongside hardware, software and algorithm specialists, you will contribute to the development of innovative architectures that deliver industry-leading performance and efficiency. Key Responsibilities FPGA design and development using VHDL and/or Verilog/SystemVerilog Implementation of neural network and machine learning acceleration architectures ...

Senior Frontend Developer

Hiring Organisation
Rullion - Eon
Location
London, Farringdon, United Kingdom
Employment Type
Contract
Senior Frontend Developer with strong experience in TypeScript and React Native to join our development team. In this role, you will build scalable, high-performance web applications and work closely with cross-functional teams to deliver outstanding user experiences. This is initially a six-month contract with potential … closely with UX/UI designers to deliver intuitive and engaging interfaces Write clean, efficient, and maintainable code following best practices Optimise applications for performance and scalability Participate in code reviews to ensure high development standards Troubleshoot and resolve issues across development and production environments Contribute to architectural decisions ...

Python Developer

Hiring Organisation
Vertus Partners
Location
City of London, London, United Kingdom
pricing distribution and integration across the trading stack. You will: -Develop production grade object-oriented Python applications -Design scalable, resilient backend services -Improve system performance and reliability -Take ownership of defined components and services -Deliver enhancements and new functionalities -Contribute to design discussions and technical improvements -Work directly with … Essential: -Python development experience within a trading environment -Strong OO production Python -Experience building backend or distributed systems -Solid understanding of threading, concurrency, and performance optimisation -Business knowledge of at least one: Fixed Income, FX, Rates This is a PAYE contract via an Umbrella ...

Core Engineer (C++)

Hiring Organisation
NJF Global Holdings Ltd
Location
City of London, London, United Kingdom
looking to work on problems that genuinely test the limits of performance, scale, and engineering craft? We are building a small, elite team of systems engineers to design and evolve the core infrastructure that powers a highly sophisticated trading platform. This is not application level development. This is deep … work on performance critical systems where nanoseconds matter, correctness is non negotiable, and your decisions directly impact real world outcomes. You will be working on the foundations of the trading stack, including market data, execution, simulation, and internal infrastructure. The problems are hard, the standards are high ...

Salesforce Marketing Cloud Developer

Hiring Organisation
Damia Group Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700 per day + Inside IR35
within Audience Builder and Contact Builder Develop and maintain Content Builder assets including emails, landing pages and dynamic content blocks Implement tracking, reporting and performance analytics using Marketing Cloud Intelligence (Datorama) and built-in analytics tools; experience with Marketing Analytics platforms is highly desirable Work with Marketing Cloud Advanced … Salesforce CRM data sync management Understanding of email compliance, GDPR, suppression and consent management requirements Experience with Marketing Cloud reporting, campaign analytics and performance optimisation Desirable Experience with Marketing Cloud Advanced (Personalization/Interaction Studio); real-time personalisation, web and email recommendations, Einstein features Familiarity with Marketing Cloud ...

Contract Android Engineer - Central Government Project (Inside IR35)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 500 per day
handling sensitive data Desirable Skills: Experience with modern Android architecture (e.g., MVVM, Clean Architecture) Familiarity with CI/CD pipelines and automated testing Performance optimisation and app scalability experience Experience working on high-traffic or mission-critical applications What You'll Bring: A strong focus on delivery ...

Oracle Developer

Hiring Organisation
Searchability
Location
Lincolnshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
teams and external stakeholders to gather requirements, build technical solutions, and support ongoing system improvements. You'll also contribute towards integrations, customisations, testing, and performance optimisation across Oracle environments. This role would suit someone who enjoys a mixture of technical development work and stakeholder engagement within enterprise-scale ...

Solutions Architect

Hiring Organisation
Nigel Frank International
Location
Edinburgh, Scotland, United Kingdom
services (Logic Apps, Service Bus, Functions) Solid understanding of enterprise architecture principles and cloud-native design Experience with data migration, data modelling, and solution performance optimisation Excellent stakeholder management and communication skills Ability to lead multi-disciplinary delivery teams in complex programmes Benefits Starting Salary ...

Oracle Data & Analytics Consultant

Hiring Organisation
Frontier Resourcing Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
Market leading day rate
using ODI, including: data ingestion, cleansing, transformation, and pipeline orchestration. · Strong dimensional data modelling and Star Schema design experience. · Advanced Oracle SQL development and performance optimization skills. · Experience developing OAC Data Visualization (DV) dashboards, including geographic/map-based visualizations and interactive analytics. · Ability to translate high-level ...

Python Developer (SC Cleared)

Hiring Organisation
scrumconnect ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
with complex application or workflow-based systems Familiarity with building evaluation or assessment tools (eg, scoring, commenting, review workflows) Understanding of scalable architecture and performance optimization Exposure to public sector or large-scale platform environments Diversity & Inclusion At Scrumconnect, we are committed to building a diverse and inclusive workplace ...