1 to 25 of 134 Performance Optimisation Jobs in the UK excluding London

Junior Full Stack Developer

Hiring Organisation
Diamond Search Recruitment Ltd
Location
Kent, Ashford, United Kingdom
Employment Type
Permanent
Salary
£42000/annum OTE
administrators Utilise AI development tools to support theme creation and development workflows Support data migration and synchronisation between Shopify and external platforms Implement website performance optimisation and best practice development standards Assist with A/B testing, SEO implementation and data-driven improvements Collaborate across multiple projects while … Shopify APIs and integrations Knowledge of CMS implementation and server-side development concepts Experience creating easy-to-manage backend environments Understanding of website performance optimisation techniques Knowledge of data migration and synchronisation processes Familiarity with e-commerce development and web design best practices Interest in AI-assisted development ...

Senior Software Engineer (Node.js / TypeScript / AWS)

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£80,000
Architect event-driven and distributed systems on AWS Develop APIs, microservices and internal tooling Improve reliability, observability and developer workflows Conduct load testing and performance optimisation Contribute to frontend applications where required About You You are a senior engineer with deep backend and cloud experience gained from operating … systems Experience with event-driven architectures and high-concurrency systems Infrastructure as Code experience (Pulumi, Terraform or similar) Strong understanding of databases, caching and performance optimisation Experience with observability, monitoring and alerting Comfortable working across the stack when required Strong Linux, Docker and Git knowledge Not the Right ...

Lead Front End Engineer TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
systems Define and enforce engineering standards, best practices, and patterns Collaborate with backend teams to integrate with AWS-based services and APIs Drive performance optimisation, accessibility, and user experience improvements Mentor and support engineers, providing technical leadership and guidance Work closely with product and design to translate requirements … scalable frontend architectures Solid understanding of API integration and distributed systems Experience working with AWS (e.g. API Gateway, Lambda, S3, CloudFront) Strong knowledge of performance optimisation, state management, and testing strategies Experience mentoring engineers and influencing technical direction Desirable Experience with or server-side rendering Exposure to micro ...

Mid Level C# Full Stack Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £100,000 per annum
This role offers the chance to deepen your expertise in C# and .NET within a highly technical team working on complex, performance-led systems. You will take on greater ownership while continuing to grow in a collaborative environment. The Company They are a growing, data-focused organisation with … Develop and enhance C# .NET applications across multiple systems * Work on both greenfield projects and improvements to existing platforms * Contribute to system design and performance optimisation * Collaborate with cross-functional teams to deliver technical solutions * Support and mentor more junior engineers where appropriate Your Skills & Experience * Strong commercial ...

Performance Application Engineer

Hiring Organisation
Arden White Limited
Location
Northampton, Northamptonshire, East Midlands, United Kingdom
Employment Type
Contract
Overview We are supporting a leading Formula One organisation in the search for a Performance Engineer to join their Customer Engineering division on a long-term contract basis. This is a high-impact opportunity to work at the cutting edge of hybrid power unit performance, collaborating directly with … customer teams to deliver measurable gains in performance, reliability, and driveability. You will play a key role in shaping how power unit systems are developed, tested, and optimised in one of the most technically advanced environments in motorsport. Role Purpose As a Performance Engineer, you will be responsible ...

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 Developer - ~Perm - Birmingham

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£80,000
Senior C# Developer Location: Birmingham (Onsite) Salary: £50,000 - £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, and drive ...

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 Developer

Hiring Organisation
Initialize
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
Azure OpenAI, AI Search, agents and RAG patterns. Strong practical knowledge of databases, including SQL and NoSQL platforms, schema design, data access patterns, query performance and secure data handling. Ability to design, build and review maintainable code while following agreed coding standards, architectural guidelines and secure development practices. Strong … excellent understanding of the development fundamentals - version control (Git), SDLC, agile methodologies, testing, debugging, code review, CI/CD, RESTful APIs, databases, query optimisation, operating systems, networking, security best practice, authentication and authorisation, encryption, cloud computing, containerisation, orchestration, infrastructure as code, monitoring, logging, performance optimisation, scalability ...

Data Engineer

Hiring Organisation
EMBL-EBI
Location
Saffron Walden, Essex, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£60,000
storage and retrieval. You will work closely with cross-functional teams to analyse requirements, propose new data pipeline architectures, and implement solutions to improve performance and scalability. The tasks for this post include the following: Analyse existing data pipelines and identify areas for improvement, optimisation, and scalability. Work … closely with Bioinformaticians and annotators to integrate data pipelines with existing systems and applications. Monitor data pipeline performance, troubleshoot issues, and implement solutions to ensure reliability and efficiency. Stay current with industry trends and best practices in data engineering and recommend new technologies or tools to enhance data infrastructure. ...

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 ...

NetSuite Technical Lead - Remote working

Hiring Organisation
Communicate Recruitment Solutions LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £80,000 per annum
NetSuite ERP environment. This role acts as the technical bridge between business requirements and system execution, ensuring scalable architecture, seamless integrations, and high system performance across NetSuite and connected platforms such as Workday and other enterprise systems. This is a permanent role and remote working will be available. … blueprints Reporting & Analytics Develop and maintain advanced Saved Searches, SuiteAnalytics workbooks, and financial reports Support data extraction, transformation, and reporting requirements across teams Troubleshooting & Optimisation Diagnose and resolve script errors, integration issues, and system performance bottlenecks Lead performance optimisation initiatives, including refactoring legacy scripts and improving ...

Principal Software Engineer (UI) TLNT1 NI

Hiring Organisation
TP ICAP Group Services Ltd
Location
Belfast, UK
authority within the UI engineering discipline, providing leadership across design, architecture, standards, and delivery. The role is hands-on, focused on building scalable, high-performance UI systems while mentoring engineers and influencing best practices across multiple teams. Operating within agile teams, the Principal UI Engineer sets engineering direction, supports … architectural decision-making, and ensures the delivery of high-quality, robust UI solutions. Role Responsibilities Lead the design and development of scalable, high-performance UI applications. Provide technical leadership and mentoring to UI engineers across teams. Establish and maintain UI engineering standards, patterns, and best practices. Oversee solution design ...

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast of emerging technologies and industry trends to inform strategic decisions. Skills and Experience Minimum 8 years of commercial … orchestration tools such as Docker and Kubernetes. Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). Knowledge of front-end performance optimisation and accessibility standards. Exposure to machine learning pipelines or data engineering workflows. Prior experience working in startup environments or high-growth technology companies. ...

Power BI Developer

Hiring Organisation
Orbit Group
Location
CV3, Binley Woods, Warwickshire, United Kingdom
Employment Type
Contract
Contract Rate
£28277 - £35345/annum group incentive bonus, 27 days holid
actionable insights to users across operational, tactical and executive levels. Build robust data models in Power BI: define tables, relationships, hierarchies, measures using DAX, performance optimisation, data refresh strategy. Ensure data accuracy, consistency and integrity - reconcile Power BI outputs with source systems, data warehouses, and business rules. Implement … based security (row-level security, workspace permissions) in the Power BI service. Apply visual design best practices, including layout, interactivity, filter/slicer design, performance considerations, drill-throughs, mobile-ready views. Work with the Data Engineering team to ensure data pipelines, data marts and warehouses deliver appropriate and performant ...

Senior Cloud Ops Engineer

Hiring Organisation
ARM
Location
Worthing, West Sussex, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
Support the transition from IaaS to PaaS services by designing and implementing modern cloud-native solutions. Monitor and manage cloud workloads to ensure availability, performance, and security. Operations & Automation Implement infrastructure as code (IaC) using tools such as Bicep, ARM templates, or Terraform. Automate provisioning, scaling, and maintenance … FinOps (Cloud Financial Operations): Experience with managing cloud costs, optimising cloud spending, and implementing FinOps principles to drive cost-effective cloud strategies while balancing performance and scalability. Capability required: Cloud Platform Expertise: Expert in MS Azure with a deep understanding of its services, features, and capabilities. Scaling and Performance ...

Azure DevOps Engineer

Hiring Organisation
Proactive Appointments
Location
Staines-upon-Thames, Middlesex, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £75,000 per annum
continuous delivery processes * Collaborate with development teams on infrastructure and environment decisions * Troubleshoot and resolve complex platform and application issues * Implement monitoring, logging, and performance optimisation solutions * Participate in paid out-of-hours deployment activities and support rota * Contribute to infrastructure automation and platform scalability initiatives Skills & Experience … Server * Application monitoring and logging tools * Experience supporting microservices-based architectures * Knowledge of IIS, SSO, Cosmos DB, NGINX, and Azure Application Insights * Platform performance tuning and optimisation experience Desirable * Bicep and ARM Templates * Cloudflare * Octopus Deploy * C#/.NET knowledge * Prometheus and Grafana * Seq, Loki, or similar logging ...

Principal.Net Developer ( AI ) TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
platforms Drive the decomposition of monolithic systems into modular services, APIs, and event-driven components Collaborate with frontend and backend leaders to ensure scalability, performance, and consistency across the platform Introduce modern engineering practices and tooling to improve delivery quality, reliability, and developer experience Technical Leadership Provide architectural oversight … across multiple teams and applications Lead platform evolution initiatives including cloud migration, containerisation, and CI/CD automation Identify and resolve complex technical and performance issues across distributed systems Champion software craftsmanship, testing strategies, and design patterns Engineering Management & Culture Lead and mentor engineering managers and senior engineers Support ...

OS Software Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
role is ideal for someone who thrives in collaborative engineering environments, enjoys solving complex problems, and is passionate about building scalable, secure, and high-performance applications. Key Responsibilities Develop high-quality software for client projects, working individually or as part of a development team Collaborate with technical leads … experience with Git and open-source platforms (GitHub/GitLab) Ability to build and deploy scalable applications or libraries Strong debugging, problem-solving, and performance optimisation skills Understanding of open-source licensing (MIT, GPL, Apache) Experience with cloud platforms such as AWS or Azure Ability to create clear ...

Senior Backend Developer TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
maintaining scalable Node.js applications and microservices built with TypeScript Building RESTful and GraphQL APIs using modern, best-in-class frameworks Implementing strong patterns for performance, reliability, and maintainability in cloud-native environments Collaborating with DevOps and Cloud Engineering teams to ensure smooth CI/CD pipelines and efficient deployments … with enterprise systems and complex third-party APIs, including payments, fulfilment, and ERP Experience delivering large-scale enterprise projects with multiple stakeholders Knowledge of performance optimisation and observability tooling Experience with SQL and NoSQL databases, including ORM/ODM frameworks Familiarity with Infrastructure-as-Code tools such ...

Software Engineer (PHP) TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
Software Engineer who thrives in fast-paced environments where performance truly matters? Do you want to help shape the technical direction of one of the most exciting and fastest-growing start-ups in the area? My client is building something special - a high-growth technology business with ambitious plans … role in scaling their platform. The Role As a Software Engineer, you will be working on a modern, cloud-based platform where performance, scalability and reliability are critical. This is not a maintenance role - you will be building, optimising and helping to define best practice from the ground up. ...

LLM / GenAI Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
that drive real business value. Key Responsibilities Design, build, and deploy LLM-powered applications and GenAI solutions Develop and optimise prompt engineering strategies for performance and accuracy Implement RAG (Retrieval-Augmented Generation) pipelines using structured and unstructured data Fine-tune and customise foundation models and LLMs where required. Integrate … vector search Experience working with LLM APIs and frameworks (e.g., OpenAI, Azure OpenAI, Anthropic, Hugging Face) Strong understanding of prompt engineering techniques and optimisation strategies Experience working with vector databases (e.g., Pinecone, Weaviate, FAISS, Chroma) Practical experience with model evaluation, tuning, and performance optimisation Experience integrating ...

Senior Dynamics Developer

Hiring Organisation
Intellectual Property Office
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
highly user focused and successful digital services ensuring governance standards are adhered to Assist in implementing toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Keeping an open mind and exploring innovative ways to solve problems, working in a fail-fast fashion to provide ...

Principal Developer

Hiring Organisation
E.surv Limited
Location
Kettering, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent
Salary
£75,000
augment the development process. Extensive experience with Django, Flask and React.js and SQL. Strong understanding of API-first architectures. Proven ability in performance optimisation. Experience with Docker containerisation. Advanced DevSecOps, CI/CD and cloud-native application knowledge Experience leading Agile Scrum delivery teams. Excellent communication, stakeholder engagement ...

Senior Data Architect (8-month FTC)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Temporary
Salary
£90,000 - £101,000 per annum
hundreds of millions of data points annually. They are investing heavily in modernising their data platform and analytics capabilities , with a strong focus on performance, scalability, and self-serve analytics. The role You'll take full ownership of the Databricks Lakehouse and BI architecture, leading the migration away from … modular, scalable pipelines Build and optimise data transformation frameworks using Spark/Python/SQL pipelines Act as the go-to expert for query performance optimisation (Spark execution plans, data skew, joins) Design and implement dimensional data models (star/snowflake schemas) Architect the semantic layer ...