1 to 25 of 28 Contract Performance Optimisation Jobs in the UK

FX Derivatives & Risk Bromley (3 days per week on-site) 12-month contract Competitive day rate via umbrella Are you a React Developer who thrives in fast-paced, high-performance environments? This is your chance to join a front-office technology team working on cutting-edge trading systems that power global markets. You'll be part of a highly … skilled FX Derivatives & Risk team, building and extending sophisticated front-end applications used by traders and risk managers. Expect a role that combines complex problem solving, UI performance optimisation, and exposure to financial products , all within a collaborative and innovative environment. What you'll be doing: Designing and developing high-performing React applications for FX Options and Risk. … JavaScript, HTML, and CSS. Good understanding of algorithms, data structures, and design patterns. Experience with agile methodologies (Scrum, Kanban, XP) and CI/CD practices. Background in UI design, optimisation, scalability, and reliability. Degree in Computer Science, Engineering, Mathematics, or related field. Bonus points if you have: Experience with derivatives, FX, or trading environments. Previous work on real-time More ❯

to design discussions, code reviews, and maintain documentation in Confluence. Essential Technical Skills Languages & Frameworks TypeScript (Proficient) - primary language for backend and frontend. React (Proficient) - SPA development, state management, performance optimization. js (Proficient) - microservices architecture. GraphQL (Working) - queries, mutations, schema awareness. SQL (PostgreSQL) (Working) - schema design, queries, migrations. JavaScript (Working) - legacy code and Jest tests. Go (Awareness) - infrastructure tooling More ❯

code. Capable of working both in a team and independently. Excellent communication skills. Desirable A science or engineering degree in Computer Science or Electronics. Experience with writing algorithms and performance optimization. Experience with CI/CD pipelines and DevOps practices. Experience with cloud platforms (e.g., AWS, Azure). Experience with Linux shell scripting. More ❯

improvements and make key architectural decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . Expert level GraphQL , including advanced API design, schema evolution, performance optimisation. Strong automated testing frameworks like Vitest and Playwright . Proficiency with modern DevOps tooling and cloud-native architecture, including Docker , Helm , Kubernetes . Proven ability to lead technical More ❯

testing platform , working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities Develop and enhance Python-based models for: Historical index back-testing Daily pricing and index level generation Weighting and rebalancing logic Basket decomposition … with Flask or FastAPI for API development. Proficiency in time-series data manipulation and back-testing methods. Experience working with large datasets and real-time data pipelines . Strong performance optimisation and debugging skills. Confident communicator with the ability to liaise directly with business stakeholders. Desirable Skills Experience in commodities indices, structured products, or index engineering . Knowledge More ❯

Strong proficiency in Pandas , NumPy , and time-series data manipulation Proven experience with FastAPI or Flask Familiarity with large datasets and real-time data pipelines Excellent debugging, profiling, and performance optimization skills Strong communication skills and ability to work with non-technical stakeholders Preferred Skills Experience with commodities indices or structured products Knowledge of market data platforms (e.g., Bloomberg More ❯

role Angular experience – essential Building and maintaining responsive and accessible interfaces at scale Familiarity with state management libraries (e.g., Redux, Zustand) and component-based architectures Solid understanding of web performance optimisation, testing (unit, integration, and end-to-end), and cross-browser compatibility Collaborate with UX designers and product teams to translate design wireframes and prototypes into working front More ❯

ClaimCenter Developer 6+ years’ experience with ClaimCenter, Guidewire Certified. Strong in Gosu, Java, SOAP/REST, Studio, Messaging, Data Model, Rules & Workflows. Lead development, integrations, mentoring, code reviews, and performance optimization. Agile/Scrum experience with solid problem-solving and communication skills. Guidewire ClaimCenter Business Specialist/Analyst 5+ years’ experience with ClaimCenter, Guidewire Certified (preferred). Skilled in More ❯

as Logic Apps, Azure Service Bus and Functions. . Work closely with test engineers to ensure quality, acceptance criteria and coverage and contribute to toolkits and APIs for integration, performance optimisation, security and scalability. . Work within a multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance and security standards (ISO 27001, SPF More ❯

SAP BTP, SAP HANA, and cloud platforms (Azure, AWS, or GCP). Proficiency in system integration, middleware, and API management. Solid grasp of data security, compliance (e.g., GDPR), and performance optimization. Excellent communication and stakeholder management skills. Ability to lead cross-functional teams and influence at all levels. Preferred Qualifications SAP certifications (e.g., SAP Certified Technology Associate, SAP S More ❯

that consolidates dashboards, reports, and outputs from various data roles into one cohesive experience. The interface will serve as the primary access point for stakeholders to explore data, monitor performance, and make informed decisions. Key Responsibilities Interface Development :Design and build a centralised front-end application that integrates outputs from dashboards, reports, models, and data pipelines into a single … intuitive view. Accessibility Compliance :Ensure the interface meets WCAG 2.2 standards, promoting inclusive access for all users. Performance Optimisation :Deliver fast load times, responsive design, and smooth user interactions across devices. Cross-Functional Collaboration :Work closely with Data Analysts, Data Scientists, Engineers, Business Analysts, and User Researchers to understand data outputs and user needs. Data Visualisation :Implement dynamic More ❯

working with a fast-growing digital marketing consultancy working at the intersection of data, media, and technology. Their mission is to help brands understand their customers better and drive performance through data-driven decision-making. With a diverse team of technologists, analysts, and marketing specialists, they deliver cutting-edge solutions across iGaming, Sports, Retail, and Financial Services. Role Overview … ingestion, pipeline automation, and data transformation. Solid SQL skills with Snowflake (or similar cloud data warehouses). Experience with Airflow or other orchestration tools. Knowledge of data modelling, warehouse performance optimisation, and governance. Cloud experience (AWS preferred; Terraform/Docker a plus). Nice-to-have: browser automation/web scraping (Playwright, Selenium, Puppeteer). If you are More ❯

4+ years of Magento development experience Proficient in Javascript Familiar with Git, Jira, Bitbucket, and agile processes. Solid problem-solving abilities and a collaborative mindset. Understanding of responsive design, performance optimisation, and cross-browser/device compatibility. More ❯

infrastructure within Microsoft Azure to ensure scalability, continuity, and improved operational efficiency. Hybrid System Maintenance: Support legacy AWS-based systems while enhancing the Azure environment, including monitoring, troubleshooting, and performance tuning. Custom Software Development: Design and implement bespoke software components to bridge gaps between legacy and new systems, improve automation, and extend functionality. Cloud Integration & Management: Manage infrastructure across … Documentation & Knowledge Transfer: Produce clear, detailed documentation to ensure transparency, collaboration, and long-term maintainability. Essential Skills & Experience Strong full-stack development background, with focus on system integration and performance optimisation . Proven experience with Microsoft Azure (essential). Experience maintaining legacy applications and developing new features within Azure. Comfortable contributing to infrastructure modernisation projects. Strong communicator with More ❯

Geneva application and AGA maintenance releases. • Migrate legacy reports to RDL format where applicable. • Troubleshoot and resolve accounting data issues within the Geneva platform. • Assist in system administration and performance optimization of Geneva environments. • Document technical specifications and maintain version control of report scripts. Required Skills & Qualifications: • 2+ years of experience with Advent Geneva RSL development. • Strong understanding of More ❯

Data Warehouse, and replacing the legacy solution for allocation factor calculation with an innovative, graph database-driven solution. Duties: Lead the design of data architectures and the development and optimisation of ETL/ELT pipelines to enable seamless integration of data from multiple sources, including raw datasets and outputs from GraphDB (NEO4J), hosted on Google Cloud Platform (GCP). … Create and document technical solution designs, including detailed specifications. Address complex technical challenges such as performance optimisation, data traceability, and managing large-scale data sets. Oversee quality assurance across environment configuration, query development, data processing, staging tables, and related components. Facilitate and lead technical meetings to advance data modelling techniques and validate outcomes. Engage with Programme Architects to More ❯

between business stakeholders and technology teams, translating trading needs into technical solutions. Drive platform upgrades, integration efforts, and workflow enhancements. Provide expert-level input on ION configuration, connectivity, and performance optimization. Collaborate with vendors and internal teams to ensure seamless delivery and support. Requirements: Proven experience as an ION SME within an investment banking or trading environment. Strong understanding More ❯

implement end-to-end ServiceNow solutions across multiple modules. Deep understanding of the ServiceNow platform architecture, data model, and security framework. Expertise in ServiceNow best practices, including platform governance, performance optimization, and security hardening. Proven experience with large-scale ServiceNow implementations and complex integrations. Strong analytical and problem-solving skills with the ability to articulate complex technical concepts to More ❯

to work with a high profile end customer. Key Requirements: Proven experience as a Database Administrator (PostgreSQL DBA) Must hold Active Security Clearance (SC) Core development/maintenance and performance optimisation (sharding, partitions) Experience with clustering and extensions such as Pgvector PostGIS and AGE Data migration experience from existing database(s) to Postgres database(s) Ability to recreate More ❯

SC) to work with a high profile end customer.Key Requirements: Proven experience as a Database Administrator (PostgreSQL DBA) Must hold Active Security Clearance (SC) Core development/maintenance and performance optimisation (sharding, partitions) Experience with clustering and extensions such as Pgvector PostGIS and AGE Data migration experience from existing database(s) to Postgres database(s) Ability to recreate More ❯

with existing team to ensure smooth transition handover at termination of contract Contribute to CI/CD workflows using Azure Pipelines within an Azure cloud environment. Optimize application for performance, scalability, and accessibility. Troubleshoot and resolve issues across the front end, supporting integration points with back-end services. Maintain design consistency, usability, and accessibility standards across applications. Requirements Proven … of .NET (C#) and how React applications integrate with it. Familiarity with Azure environments, ideally including Azure Pipelines for CI/CD. Strong understanding of responsive design, accessibility, and performance optimization. Familiaity with calender page optimisation A team player with good communication skills More ❯

with existing team to ensure smooth transition handover at termination of contract Contribute to CI/CD workflows using Azure Pipelines within an Azure cloud environment. Optimize application for performance, scalability, and accessibility. Troubleshoot and resolve issues across the front end, supporting integration points with back-end services. Maintain design consistency, usability, and accessibility standards across applications. Requirements Proven … of .NET (C#) and how React applications integrate with it. Familiarity with Azure environments, ideally including Azure Pipelines for CI/CD. Strong understanding of responsive design, accessibility, and performance optimization. Familiaity with calender page optimisation A team player with good communication skills More ❯

days onsite per week Start: ASAP Duration: 6 - 12 months Rate: £540 per day, inside IR35 Were looking for an HPC Technical Lead with deep expertise in High-Performance Computing platforms , Docker containerization , Azure infrastructure , and Linux systems . This role is ideal for a technical leader who thrives in designing, building, and managing cutting-edge HPC environments. Key … systems planning, configuration, management, and maintenance . Ensure system security, scalability, and reliability across Azure and Linux infrastructures . Design, build, and optimize Docker containers , maintaining images, versions, and performance standards. Provide technical support, troubleshooting, and performance optimization across HPC environments. Collaborate with cross-functional teams to integrate DevOps, automation, and cloud best practices. Your Profile Essential Skills More ❯

communication skills. Able to take a concept from discussion to high-quality code delivery. Desirable Degree in Computer Science, Software Engineering, or related discipline highly desirable Experience in high-performance or complex systems. Familiarity with algorithmic analysis and performance optimisation. Work Arrangements Remote: or Hybrid your choice but you must be UK based. Inside IR35 contract. If you More ❯

communication skills. Able to take a concept from discussion to high-quality code delivery. Desirable Degree in Computer Science, Software Engineering, or related discipline highly desirable Experience in high-performance or complex systems. Familiarity with algorithmic analysis and performance optimisation. Work Arrangements Remote: or Hybrid your choice but you must be UK based. Inside IR35 contract. If you More ❯