1 to 25 of 144 Performance Optimisation Jobs in the UK excluding London

High Performance Computer Scientist /HPC Developer

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 per annum
most demanding computational systems. This role is focused on solving difficult engineering problems at scale, working with advanced computing infrastructure, distributed systems and performance-critical workloads. We are seeking someone with outstanding technical ability who enjoys understanding systems deeply, from hardware and operating systems through to software optimisation and large-scale computation. About the Role You will work on the design, optimisation and operation of high-performance computing environments. You will be responsible for improving computational efficiency, building reliable infrastructure and solving complex challenges involving large-scale workloads. This is a highly technical role suited ...

Principal Data Solution Architect

Hiring Organisation
Jobleads-UK
Location
Leeds, England, United Kingdom
distributed data platforms that power Flutter’s applications across Gaming and Sportsbook. The role is focused on execution and solutions delivery – building scalable, high‐performance data platforms that enable real‐time and batch data processing at scale. Responsibilities Drive platform capability improvements – continuously enhance distributed data platforms using knowledge … identify, communicate, and mitigate technology risks associated with distributed systems, data platform decisions, and system integrations. Ensure operational excellence – design solutions with security, cost optimisation, performance, regulatory requirements, and compliance in mind. Contribute to architecture governance – support architecture forums and governance processes, ensuring timely review and alignment across ...

Infrastructure Support Specialist - on site Aldermaston

Hiring Organisation
DXC
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Primary location: Aldermaston SECURITY CLEARANCE: DV or willing to undergo vetting ROLE OVERVIEW: The Infrastructure Support Specialist plays a critical role within a high-performance, fast-paced Enterprise IT environment that supports a major public-sector client. The position is responsible for delivering advanced 3rd and 4th line support … focus on stability, resilience, and security. You will be a key member of the On-Prem 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 ...

Senior Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Milton Keynes, England, United Kingdom
Azure DevOps Pipelines, Terraform and Azure native services to enable Infrastructure as Code (IaC), guided by the Azure Well‐Architected Framework to ensure security, performance, reliability and cost efficiency. Principal Accountabilities Design, deploy and operate secure, scalable cloud infrastructure across multiple regions in Microsoft Azure. Build and manage Azure … tooling to empower development teams to deploy securely and independently. Apply Azure Well‐Architected Framework principles to ensure solutions meet standards of reliability, performance, cost optimisation and security. Collaborate with Security and Engineering teams to ensure compliance and continuous improvement. Maintain comprehensive documentation for systems, configuration and automation ...

Senior Full stack Developer - Birmingham - Perm,

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£80,000
Senior Full Stack Developer Location: Birmingham (Onsite) Salary: £60,000 - £80,000 DOE Job Type: Permanent, Full-Time Senior Developer - Platform Stability, Performance & Engineering Excellence We're looking for an experienced Senior Developer who enjoys solving complex technical challenges and improving the quality, resilience, and performance of large … scale SaaS platforms. This is a unique opportunity to play a key role in improving platform reliability, performance, and engineering standards across a growing technology business. Rather than focusing on traditional feature development alone, you'll work closely with engineering teams to identify systemic issues, enhance platform robustness ...

Senior BI Developer

Hiring Organisation
AJ Bell
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
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. You’ll also form a key part of our wider data community, ensuring that our organisational data supports our ambitious growth … systems and structures and at different velocities including near real time Strong knowledge of data architecture (Snowflake is preferred), SQL development, security, and process optimisation Advanced SQL development including query development and optimisation, stored procedures, and performance tuning Expert knowledge of end-to-end enterprise BI using ...

Non-Functional Test Lead

Hiring Organisation
Brio Digital
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£700/day
Lead to join a large-scale enterprise transformation programme , taking ownership of the non-functional testing strategy across multiple workstreams. You'll lead the Performance Testing and Operations Acceptance Testing (OAT) teams, ensuring the platform is resilient, scalable and ready for production. This is a key leadership role, working … closely with engineering, architecture and delivery teams to drive performance, operational readiness and continuous improvement throughout the programme lifecycle. Key Responsibilities Define and own the end-to-end non-functional testing strategy across the programme. Lead the Volume & Performance Testing and Operations Acceptance Testing (OAT) teams. Establish performance ...

Cloud Systems Engineer

Hiring Organisation
IntaPeople
Location
Cardiff, Butetown Community, South Glamorgan, United Kingdom
Employment Type
Permanent
Salary
£47000 - £51000/annum
Manage cloud-native security services, monitoring and alerting Work alongside cyber security teams to improve security posture and reduce risk Resilience & Operations Manage monitoring, performance and availability across cloud environments Design and maintain backup, disaster recovery and business continuity solutions Provide 3rd line support for cloud-related incidents … technical issues Support service reliability and operational excellence Cost & Performance Optimisation Monitor cloud consumption and costs Implement governance, reporting and optimisation measures Balance performance, resilience and commercial efficiency What We're Looking For Essential Experience Strong hands-on AWS engineering experience within an enterprise or commercial ...

Lead Data Engineer

Hiring Organisation
Michael Page Technology
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £880 per day
sprint planning, backlog prioritisation and delivery tracking within Agile teams Identify and mitigate delivery risks, dependencies and technical challenges Troubleshoot complex data, platform and performance-related issues Drive engineering best practices across coding standards, testing, performance optimisation and code reviews Act as a key interface between business … highly advantageous Desirable experience includes: Databricks certifications Kafka or Structured Streaming CI/CD and DevOps practices Airflow or Databricks Workflows Delta Lake optimisation techniques Docker and Kubernetes Exposure to machine learning pipelines Job Offer Competitive day rate of £650-880 per day Inside IR35 (Umbrella) Initial 6-month ...

Technical Lead (Python/Django)

Hiring Organisation
scrumconnect ltd
Location
Surrey, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
knowledge of PostgreSQL database design and optimization. Experience with Git, CI/CD pipelines, and Agile development methodologies. Good understanding of application security and performance optimization. Excellent troubleshooting and problem-solving skills. Preferred Qualifications Experience working in government/public sector digital transformation projects. Exposure to cloud platforms such ...

Software Engineering Manager

Hiring Organisation
WRK DIGITAL LTD
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
platform. A key part of the role will involve reviewing existing systems, identifying opportunities to reduce technical debt, and driving improvements that enhance performance, maintainability and delivery efficiency. Ensuring performance and security at scale will be a core focus. Youll work across teams to optimise rendering, caching strategies … evolving large-scale SPAs in production environments Deep expertise in React.js, Node.js and modern frontend ecosystems Strong understanding of browser internals, rendering pipelines and performance optimisation Experience improving frontend performance metrics such as TTFB, TTFP and TTI Strong knowledge of caching strategies across client, edge and server ...

Senior Java Developer

Hiring Organisation
MW recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £125,000 per annum
sophisticated trading systems used across the capital markets landscape. You'll collaborate directly with Product, Client Services and Engineering leadership to deliver scalable, high-performance software and help shape the future direction of the platform. If you enjoy solving complex technical challenges, mentoring developers and working with modern technologies … Skills 7+ years' commercial Java development experience Previous experience within Financial Services ideally capital markets Strong Java 11+ and Spring Boot development Multi-threading, performance optimisation and profiling Experience building microservices TDD and automated testing (JUnit, Mockito, Spock) Maven and Git CI/CD pipelines and DevOps practices ...

Senior Software Developer

Hiring Organisation
NSD
Location
Gloucestershire, South West, United Kingdom
Employment Type
Permanent
your CV to The Opportunity An exciting opportunity has arisen for an experienced Software Developer to join a specialist engineering team delivering secure, high-performance backend software for mission-critical programmes. Working within Linux environments, you'll help design and develop scalable Java and C++ applications while providing technical … technical challenges, mentoring others, and contributing to the design of secure, enterprise-scale systems. What You'll Be Doing Designing, developing and maintaining high-performance backend software using Java and C++. Leading the technical design and implementation of software components, APIs and services. Building secure, scalable and maintainable applications ...

Senior Software Engineer - Core

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
culture of continuous improvement. Collaborate closely with Product, Design, and other stakeholders to shape requirements, making architectural and technical decisions that balance quality, performance, and delivery timelines. Ensure the implementation of high‐quality, resilient, and scalable distributed systems, incorporating resilience mechanisms and best practices. Lead troubleshooting and incident management … Architecture & Design Expertise: In-depth understanding of architectural principles and patterns, particularly for distributed systems (e.g., microservices, event‐driven architecture using Kafka). Resilience & Performance Optimisation: Skilled in applying resilience mechanisms and performance tuning practices to ensure system stability and efficiency at scale. Cloud Infrastructure & DevOps: Proficient ...

Founding Engineering - Top London Software House

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 per annum
Architect and build core technology from first principles. Own critical engineering decisions across infrastructure, backend systems and product development. Design scalable, reliable and high-performance software systems. Solve complex technical challenges with speed and precision. Build prototypes, test ideas and rapidly iterate towards production solutions. Establish engineering standards, tooling … development practices. Optimise systems for performance, reliability and scalability. Work directly with founders to shape product strategy and technical direction. Take ownership of projects from initial concept through to deployment. About You Exceptional academic background from a leading UK university. Degree in Computer Science, Mathematics, Physics, Engineering or another ...

AI Coder/Senior Full-Stack Engineer (.NET / React) — Remote, UK

Hiring Organisation
Event Solutions
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
/static side still lives on Azure, so comfort working across both clouds is a real advantage. Databases: PostgreSQL and SQL Server — schema design, performance optimisation, data-access patterns. DevOps & Automation: Infrastructure-as-code with Terraform, CI/CD pipelines, GitHub Actions, build and release automation. Containers & Runtime … with Product Managers, Engineering Managers and cross-functional teams. Communicate clearly with both technical and non-technical stakeholders. Monitor and report on key software performance and delivery metrics. Maintain high-quality technical documentation and healthy development processes. Flag issues early when they might affect delivery timelines. Why This Role ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
architecture and technical direction across multiple products and services. Design, implement and review high-quality Java and full-stack solutions, APIs and integrations. Lead performance optimisation, scalability and resilience initiatives. Drive security best practices, vulnerability remediation and secure software development lifecycle (SDLC) practices. Work closely with Data, Operations … complex production issues. Drive improvements in system observability, monitoring and operational performance. Ensure applications are designed and operated to meet reliability, availability and performance targets. Partner with Operations, DevOps and QA teams to maintain production stability and service quality. Embed a culture of operational excellence, continuous improvement and proactive ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
engineers through technical leadership and best practice. Platform architecture Design, implement and review high‐quality Java and full‐stack solutions, APIs and integrations. Lead performance optimisation, scalability and resilience initiatives. Drive security best practices, vulnerability remediation and secure software development lifecycle (SDLC) practices. Work closely with Data, Operations … complex production issues. Drive improvements in system observability, monitoring and operational performance. Ensure applications are designed and operated to meet reliability, availability and performance targets. Partner with Operations, DevOps and QA teams to maintain production stability and service quality. Embed a culture of operational excellence, continuous improvement and proactive ...

Data Engineer

Hiring Organisation
Reed
Location
Ashton-on-Ribble, Preston, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum, Inc benefits
develop scalable, high-quality solutions. Create clear technical documentation and communicate solutions to both technical and non-technical audiences. Support data quality, reliability, and performance optimisation initiatives. Contribute to CI/CD processes, testing, deployment, and environment management. Collaborate with engineering teams to improve standards, processes, and data ...

Web Developer

Hiring Organisation
ARC IT Recruitment
Location
Brighton, Sussex, United Kingdom
Employment Type
Permanent
Salary
GBP 40,000 - 60,000 Annual
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 3-5 years' experience in software or application development Strong proficiency in C#, ASP.NET/… ASP.NET Core Experience with modern Front End 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 ...

Full-Stack Developer

Hiring Organisation
Queen Square Recruitment Ltd
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500/day
developers, you will be responsible for developing, deploying, maintaining, and supporting scalable cloud-based applications on Microsoft Azure, with a focus on automation, reliability, performance optimisation, and large-scale data processing. Key Responsibilities Develop, deploy, and maintain applications using .NET Core, C#, Entity Framework, React, and Azure. Build … support Azure DevOps CI/CD pipelines, automated testing, and deployments. Write unit tests and contribute to high-quality, maintainable code. Monitor application performance, troubleshoot production issues, perform root cause analysis, and implement fixes. Optimise SQL queries and application performance. Document technical decisions and application workflows. Support live production ...

Analytical Engineer

Hiring Organisation
Eden James Consulting Limited
Location
Reigate, Surrey, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
This is a fantastic opportunity for someone who thrives in a collaborative, agile environment and is excited by the challenge of building scalable, high-performance data products using modern cloud technologies. Key Responsibilities Designing, building and maintaining scalable data products. Developing and optimising data pipelines, ensuring high-quality, reliable … Python, PySpark and SQL, with a solid understanding of ETL pipelines and data transformation. Proven experience in data modelling (end-to-end), including performance optimisation using tools such as DBT and distributed processing frameworks like SparkSQL. Experience with CI/CD, version control (e.g. Git, Jenkins) and pipeline ...

Principal Software Development Engineer

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
pipelines, Infrastructure as Code, automation frameworks, and database‐as‐code practices using Redgate Flyway. Take ownership of critical customer systems, ensuring operational resilience, observability, performance optimisation, and rapid incident response. Collaborate closely with Product, Delivery, Operations, and Commercial teams to shape technical solutions, delivery plans, and strategic outcomes. ...

Principal Software Development Engineer

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
/CD pipelines, infrastructure as code, automation frameworks, and database-as-code practices using Redgate Flyway. Own critical customer systems, ensuring operational resilience, observability, performance optimisation, and rapid incident response. Collaborate with Product, Delivery, Operations, and Commercial teams to shape technical solutions, delivery plans, and strategic outcomes. Promote ...

Principal Software Development Engineer

Hiring Organisation
Jobleads-UK
Location
Reigate, England, United Kingdom
pipelines, Infrastructure as Code, automation frameworks, and database-as-code practices using Redgate Flyway. Take ownership of critical customer systems, ensuring operational resilience, observability, performance optimisation, and rapid incident response. Collaborate closely with Product, Delivery, Operations, and Commercial teams to shape technical solutions, delivery plans, and strategic outcomes. ...