926 to 950 of 1,066 Performance Optimisation Jobs in the UK

Senior Ruby Engineer

Location
Greater London, England, United Kingdom
What You’ll Do Design and implement scalable, high-performance backend systems to power our e-commerce experience. Build and maintain interfaces that support our frontend, mobile, and third-party integrations. Be very experienced working with pull, push models for data parity between third parties and our systems around … card charge and concepts such as state machines. Expert experience with PostgreSQL, including complex joins and reporting queries, and familiarity with data modeling and performance optimization. Familiarity with cloud infrastructure (e.g., AWS, ECS, CodeBuild) and containerization (Docker,). Strong understanding of system design, data structures, and algorithmic principles. Comfortable ...

Workday Integrations Manager

Hiring Organisation
Cognizant
Location
London, UK
Employment Type
Full-time
Workday Studio, EIB, Core Connectors, REST/SOAP) to ensure robustness and scalability. Provide hands-on guidance to teams on complex integrations, troubleshooting, and performance optimisation. Ensure integration patterns, error handling, and data flows are aligned to best practice. Act as a senior escalation point for technical delivery challenges. … coach consultants on delivery execution, technical capabilities, and client engagement. Support development through shadowing, feedback, and continuous learning. Drive a delivery-focused, high-performance culture within the team. Quality & Delivery ExcellenceEnsure consistency and quality across deliverables including designs, builds, and documentation. Drive adoption of delivery frameworks, accelerators, and reusable ...

Business Analyst Advisor

Location
Bourne End, England, United Kingdom
quality and governance in assigned systems. May be responsible for data governance processes and quality in assigned area of responsibility. Leads governance initiatives and performance optimization. Coaches junior level analysts in data governance, report design and analysis, and data presentation as well as in technical and organizational effectiveness. Demonstrates … Work Scheme. Employee Assistance Programme (EAP). ZIP bonus scheme. In addition to base pay, Zebra offers this role the opportunity to earn a performance-based annual cash incentive, at a target equal to 10% of base pay, in accordance with the terms of the applicable incentive plan. Minimum ...

Staff Engineer Decision Support & Planning Optimization

Hiring Organisation
Syngenta Group
Location
Bracknell, Berkshire, United Kingdom
Salary
£ 80 K
validation for knowledge management systems.Establish and enforce security best practices and compliance standards throughout the development lifecycle to ensure audit-ready systems.Optimize system performance and scalability, identifying bottlenecks and implementing solutions to support growing data volumes and user demands.Collaborate across engineering, product and scientific teams to translate complex needs … content management, or information retrieval platforms.Familiarity with compliance frameworks, regulatory requirements, and audit-ready system design.Experience with cloud platforms and designing for scalability and performance optimization.Additional InformationSite Details Jealott's Hill International Research Centre UK is situated in pleasant semi-rural surroundings between Bracknell and Maidenhead ...

FX Options Quantitative Developer (Assistant Vice President)

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
integration with risk tech and trading systems in Citi. Develop our analytics production software using C++ and Python, applying object-oriented design principles and performance optimization techniques including C++ and algorithmic optimization, grid distribution, calc graphs, use of internal Citi libraries and frameworks and hardware acceleration. You will primarily … enjoy a whole host of additional benefits such as: Generous holiday allowance starting at 27 days plus bank holidays; increasing with tenureA discretional annual performance related bonus Private medical insurance packages to suit your personal circumstancesEmployee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family ...

Senior Software Engineer, Backend Software

Location
Greater London, England, United Kingdom
Golang, and/or Java Knowledge of gRPC and Protocol Buffers Experience building and operating distributed systems Familiarity with wireless communications, modeling of wireless performance, or satellite communications Strong technical communication skills, and ability to communicate across multiple functions Preferred Qualifications: We know that engineers who combine strong software … specifications in production software Hands-on experience working with Kubernetes and cloud-native telecom deployments (CNFs, Helm, service mesh) Professional experience with performance optimization of distributed systems Experience working in the aerospace & defense or telecommunications industry Familiarity with software‐defined networking platforms What We Offer: Innovative Environment: Work ...

Pre-Sales Engineer

Location
Manchester, England, United Kingdom
Job title: Pre-Sales Engineer – Hybrid & 365 Location: Manchester(hybrid working available) Hours: Monday to Friday, 37.5 hours per week Salary: Competitive + BCN Benefits About BCN At BCN we unite people and technology to ...

Performance Marketing Manager

Location
Slough, England, United Kingdom
Performance Marketing Manager Leading Media Brand London (3 days office based) Up to £65,000 + 10% Bonus We're working with a leading media brand in London that's investing heavily in it's subscription growth strategy and building out their in-house acquisition function. With paid media … moving in-house, this is a unique opportunity to join at the beginning of an exciting new chapter. As the Performance Marketing Manager, you'll take ownership of paid acquisition campaigns across key digital channels, driving subscriber growth through data-led decision making, continuous testing and performance optimisation. ...

Senior Integrated Campaign Manager

Location
Greater London, England, United Kingdom
Marketing, SDR, and Field Marketing to bring targeted, personalized programs to personas in our highest-value accounts.. You will report to the Director of Performance Marketing and Campaigns and work cross-functionally with Product Marketing, Performance Marketing, Content, Creative, Regional Marketing, and RevOps.. What You'll Own: Campaign … functional leaders operate and buy, educating the market on the value of AI-powered translation for global business communication. Partner with Product Marketing, Field, Performance, and SDR teams to develop go-to-market programs and nurture streams aligned with persona priorities and regional needs. Collaborate with Content, Creative ...

Data Engineer

Location
Exeter, England, United Kingdom
reports, KPI scorecards, and dashboards using Power BI desktop Follow and enhance BI standards and best practices across the team Ensure optimal end user performance by establishing overall system performance Capable of implementing row-level security for organizational data Knowledge in creation of Power BI gateway for datasets … best practices for data organization and security Familiarity with Real-Time Analytics and Direct Lake mode (preferred) Knowledge of Fabric capacity management and performance optimization #J-18808-Ljbffr ...

Lead Software Engineering - Java -ETT - Options Algorithmic Trading

Location
Greater London, England, United Kingdom
development, and technical troubleshooting to solve complex problems. Develop secure, high-quality production code in Java and review code to ensure best practices and performance standards. Design and implement algorithmic trading strategies to optimize execution and performance in a low-touch trading environment. Collaborate with product teams … translate trading strategies into scalable algorithms. Continuously improve and refactor codebases to enhance performance, implement testing, and ensure reliability. Contribute to a team culture of diversity, equity, inclusion, and respect. Drives team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery ...

Software Engineer II - Frontend (React/TypeScript)

Location
Greater London, England, United Kingdom
business-critical and revenue-sensitive areas of the product.Our team builds payment gateway integrations that help merchants securely process payments and support scalable, high-performance, and flexible checkout experiences.**What The Team Owns*** Designs and maintains payment integrations functionality and APIs, including cart-to-order flows and payments processing … Ensures high availability, performance, and correctness for checkout and payments related services, given their direct impact on merchant revenue* Partners closely with Product to evolve checkout and payments capabilities while balancing quality, security (PCI), and speed of delivery* Owns incident management and on-call responsibilities for checkout services ...

People Operations Manager

Location
Greater London, England, United Kingdom
operational controls and seamless pay‐related processes. People Technology Act as owner and subject matter expert for core People systems including HRIS (HiBob), ATS, performance platforms and wider People technology stack. Drive system optimisation, adoption, automation and cross‐system integrations to improve operational efficiency and data accuracy. … data integrity, compliance and effective system controls across the employee lifecycle. Manage relationships with third‐party People vendors, including renewals, contract management and ongoing performance optimisation. Partner closely with Finance, Payroll and wider business stakeholders to ensure seamless system operations and accurate people data across all platforms. Employee Experience ...

AI Software Engineer

Location
Greater London, England, United Kingdom
motivated Computer Vision Engineer to join our team. In this role, you will bridge the gap between high-level machine learning research and high-performance production environments. You will be responsible for building robust SDKs, automating deployment pipelines, and ensuring our models run efficiently across a diverse hardware landscape … from edge SoCs to powerful cloud GPUs. Responsibilities SDK Development (C++) Design, develop, and maintain high-performance software development kits (SDKs) to expose computer vision capabilities to end-users and internal products. Model Deployment and Integration Port, convert, and deploy machine learning models across various hardware targets, including Qualcomm ...

Senior Software Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£110,000 - £160,000 per annum
projects, contribute ideas, and work closely with stakeholders across the business. THE ROLE As a Senior Software Developer, you will build and enhance high-performance C#/.NET applications, working across greenfield projects, real-time data systems, and complex engineering challenges. Specifically, you can expect to be involved … following: Designing, building, and optimising high-performance C#/.NET applications Leading the delivery of greenfield projects and enhancements to existing platforms Contributing to system architecture, design decisions, and performance optimization Developing scalable solutions that process and manage large volumes of data Collaborating with highly skilled engineers ...

Enterprise Architect - Salesforce Marketing Cloud

Location
Greater London, England, United Kingdom
platforms, marketing clouds, vendors, integrations, and data sources. Define scalable architectural blueprints and integration patterns across disparate systems and cloud environments. Ensure interoperability, scalability, performance, reliability, and operational efficiency across the wider technology landscape. Simplify and optimise enterprise ecosystems while maintaining alignment with strategic business goals. Data, Governance, Privacy … enterprise patterns and best practices. Contribute to communities, guilds, knowledge‐sharing initiatives, and capability growth across the company. Operationalisation & Continuous Improvement Support the stabilisation, optimisation, and operationalisation of enterprise MarTech ecosystems. Ensure enterprise solutions deliver measurable business outcomes and long‐term operational success. Oversee KPIs, performance metrics ...

React Software Engineer £300-350 per day inside Sussex remote hybrid

Hiring Organisation
Telstra Associates
Location
Burgess Hill, West Sussex, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350/day £300-350 per day
4. Professional certifications in software engineering, architecture, or product management 5. At least couple of years of experience building, mentoring, and managing high-performance distributed engineering teams. 6. Hands-on experience developing data-driven UI and dynamic forms such as JSON-schema based forms. 7. Hands-on experience developing … React Testing Library or similar testing frameworks 12. Experience integrating with RESTful APIs 13. Familiarity with JSON and web service technologies 14. Understanding of performance optimization techniques for web applications 15. Participate in code reviews to ensure high standards of code quality and performance 16. Experience working ...

Senior Systems Engineer, Workers AI

Location
Greater London, England, United Kingdom
have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World … cities worldwide. Working alongside AI/ML engineers, hardware partners, and Cloudflare product teams, you’ll solve hard problems in distributed systems and high-performance computing: sub-second model cold starts, multi-accelerator workload scheduling, efficient KV cache management, and a model deployment platform serving both Cloudflare and customers ...

Data Consultant

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£240.00 - £320.00 per day
helps organisations turn complex data into actionable business insight. Working across a diverse client portfolio, they support businesses with reporting, measurement, customer analytics and performance optimisation. Their teams combine technical expertise with commercial understanding to help clients make more informed decisions. The Role and Deliverables Build, maintain and enhance … reporting dashboards using Looker Studio. Analyse paid media, website and campaign performance data to identify trends and provide actionable insights. Clean, interrogate and analyse customer data to support business decision-making. Use SQL and Python to extract, manipulate and analyse large datasets. Support reporting and analytical deliverables across ...

Senior Software Development Engineer

Location
City Of London, England, United Kingdom
reused across multiple brands and platforms. Drive engineering excellence for the services you own by championing code quality, automated testing, observability, performance optimization, and simplification, taking technical responsibility for service health, scalability, resilience, and the ongoing reduction of technical debt and operational overhead. Provide technical mentorship and guidance … experience. 8+ years of relevant professional software development experience with a strong focus on backend development, using Java or Kotlin, building and operating high-performance, high-throughput, highly available, and scalable services on cloud platforms. Proven experience owning one or more production services or components throughout their lifecycle, including ...

React Developer

Location
Greater London, England, United Kingdom
/UX Designers, and QAs, to deliver features that enhance user experience and meet business requirements. Optimise applications for maximum speed, scalability, and performance, ensuring the best possible user experience. Stay updated with the latest frontend technologies, tools, and industry trends, and apply them where appropriate. Qualifications & Skills: 3+ … development. Proficiency in TypeScript, React, and Redux or other state management frameworks. Strong experience in frontend system design, including architecting scalable, maintainable, and high-performance web applications aligned with overall platform architecture. Awareness and proficiency in security best practices and accessibility. Experience in using UI component libraries such ...

ProServe Area Delivery Leader, WWPS Professional Services - UKGI

Hiring Organisation
AmazonWebServices
Location
London, United Kingdom
Salary
£ 120 K
indispensable strategic partner in customers' digital agendas.Your track record of leading large-scale technology organizations equips you to drive growth and sustained performance—architecting talent development strategies, aligning teams to evolving customer demands, and maintaining the capability depth required to deliver complex outcomes at scale. You combine the ability … articulate technical innovation as business value at the executive level with deep technical fluency, cultivating enduring customer relationships and a high-performance culture that drives exceptional commercial results.Success is measured through full P&L ownership—delivering engagements on time, within budget, and consistently surpassing expectations.About AWS Professional ServicesAWS Professional ...

DBT Snowflake Data Engineer

Hiring Organisation
LTM
Location
London, United Kingdom
Salary
£ 80 K
DBTDesign develop and optimize Snowflake data warehouse solutionsCreate and manage dimensional and data mart modelsImplement data quality testing and monitoring frameworksPerform query tuning and performance optimization in SnowflakeCollaborate with business and technical stakeholders to understand data requirementsSupport CICD deployment processes for data solutionsTroubleshoot and resolve production data issuesMust Have … SkillsStrong Handson experience with DBT Data Build ToolExpertise in Snowflake Data WarehouseAdvanced SQL development and performance tuningData modelling Star Schema Dimensional ModellingExperience with ELTETL conceptsGit version control and CICD practicesExperience working in Agile environmentsNice to Have SkillsPython or PySparkAzure Data Factory ADFAzure DevOps pipelinesExposure to Data Ops practicesKnowledge ...

CUDA Engineer

Hiring Organisation
First Derivatives
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
focused on CUDA development, but we welcome candidates with experience in any GPU ecosystem, including OpenCL, HIP, or SYCL. You will help drive high-performance computing initiatives across our data and analytics platform.Key Responsibilities• Design and implement high-throughput GPU algorithms using CUDA.• Optimise GPU kernels for memory efficiency … profiling tools such as NVIDIA Nsight Systems, Nsight Compute, and CUDA profiling tools to identify and resolve bottlenecks.• Integrate GPU workloads into high-performance data pipelines and HPC environments.• Collaborate with cross-functional engineering teams to enhance GPU acceleration capabilities across the platform.• Mentor junior engineers and contribute ...

Senior iOS Developer

Hiring Organisation
Experis
Location
United Kingdom
implementation of custom iOS features. Collaborate with Product Managers, Tech Leads, and QA to plan, build, and ship features. Ensure high standards of quality, performance, and security. Debug, track, and resolve defects; contribute to L3 support when required. Help drive innovation within the iOS platform and development practices What … Experience with modern iOS architectures (e.g. MVVM , Clean Architecture ) Solid understanding of CS fundamentals , including algorithms and data structures Knowledge of mobile security, performance optimization, and Apple HIG Experience with Xcode, TestFlight, App Store Connect , Git, CI, Jira, and Confluence A proactive, problem‐solving mindset and ability to thrive ...