76 to 100 of 142 Performance Optimisation Jobs in England

Systems Engineer II - Infrastructure - Servers

Hiring Organisation
Booker Group
Location
Wellingborough, Northamptonshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
needs. You’ll work across physical, virtualised and cloud-based systems, balancing day-to-day operational support with longer-term planning and improvement. From performance optimisation and incident response through to future roadmaps and capacity planning, you’ll play a key role in keeping our infrastructure running smoothly. … cloud environments Lead through collaboration: Oversee and guide primarily third-party engineering resource to deliver strong, consistent results Ensure operational excellence: Maintain system performance, availability, security and patching across your estate Deliver projects: Plan and execute infrastructure upgrades, enhancements and new implementations Handle incidents and change: Resolve issues quickly ...

Senior Java Developer - eTrading

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
latency components within an electronic trading (eTrading) and eRisk platform used across global FX and electronic execution businesses. The team designs and builds high‐performance, distributed systems that manage liquidity, generate real‐time prices, handle internal and external order execution, and support algorithmic trading strategies. These systems are business … similar trading protocols is advantageous. Familiarity with time‐series databases (e.g., kdb+) is desirable. Experience with lock‐free algorithms, advanced concurrency, and performance optimisation is preferred. How We Work Delta Capita is an equal opportunity employer. We positively encourage applications from suitably qualified and eligible candidates regardless ...

Frontend Developer

Hiring Organisation
The Portfolio Group
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
using Git. Working with third party REST & GraphQL API's CSS (We use Tailwind) Desirable: Component library design using Storybook. Experience using Cloudflare workers. Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability ...

Salesforce Principal Engineer - 6-Month Contract - Inside IR35 - Hybrid (Windsor, 1 Day Onsite)

Hiring Organisation
Hamilton Barnes
Location
Windsor, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
design principles Support API and integration architecture across enterprise platforms Champion AI-enabled engineering practices and continuous improvement initiatives Ensure platform reliability, resilience, and performance optimisation Key Skills Required Strong Salesforce engineering experience within complex enterprise environments Deep expertise in Salesforce Service Cloud and Industry Cloud solutions Strong ...

AI Integration Engineer

Hiring Organisation
DTG Global Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
live support. Youll develop robust backend services and API orchestration to underpin production-grade AI applications, and ensure operational excellence through monitoring, error handling, performance optimisation and Azure-based deployments. Responsible AI practices are embedded from the start - guardrails, controls, governance not bolted on at the end. Youll ...

Android Developer

Hiring Organisation
Reed
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £80,000 per annum, Inc benefits
real ownership over your work. Key Responsibilities Develop and maintain high-quality Android applications Build polished, intuitive, and accessible user interfaces Contribute to architecture, performance optimisation, and scalability Work across the full development lifecycle from concept to release Ensure best practices across CI/CD, testing, and code ...

React Developer (Ecommerce, AWS, GraphQL)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Northampton, Northamptonshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £45,000 per annum
exposure to headless CMS platforms such as Hygraph* Good understanding of GraphQL and modern data fetching approaches* Understanding of PWA concepts and frontend performance optimisation* Strong communication skills, with the ability to engage non-technical stakeholders* Experience building e-commerce websites is essential, interacting with a Magento back ...

Technology Lead, AI Lab

Hiring Organisation
167 Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £200,000 per annum
step reasoning systems Work extensively with open-source and commercial LLM ecosystems, including Hugging Face models and tooling Implement prompt engineering, evaluation frameworks, and performance optimisation strategies Architect secure, scalable GenAI solutions on AWS and GCP Build APIs, services, and pipelines to integrate GenAI into real business workflows ...

Workday Technical Consultant

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
APIs, including SOAP, REST, WSDL, and related standards. Strong technical expertise in XML and Java. Experience supporting interface technologies, networking, data warehousing, and performance optimisation. Proven ability to work with third-party vendors and external partners on integration and data-related initiatives. Personal Attributes Strong analytical, troubleshooting, and problem ...

Cisco Catalyst NOC Engineer

Hiring Organisation
MECS Communications Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
Catalyst 9500 platforms. Purpose: To provide 24x7 operational support, monitoring, incident management and technical troubleshooting across critical Cisco network infrastructure, ensuring maximum network availability, performance and service reliability. Technology Stack: * Cisco Catalyst 3850/9300/9500 * Cisco IOS/IOS-XE * Layer 2 & Layer 3 Networking * OSPF/… Routing * VLANs/STP/QoS * Network Monitoring & Alerting Tools * Incident & Fault Management Systems * Network Performance Monitoring * Configuration Management & Backup * WAN/LAN Infrastructure Keywords: NOC Engineer, Network Operations Engineer, Cisco Network Engineer, Cisco Catalyst Engineer, TAC Engineer, NMC Engineer, Shift Network Engineer, Cisco 9300, Cisco 9500, Cisco ...

Mainframe Middleware Infrastructure Engineer (CICS Liberty)

Hiring Organisation
Gazelle Global Consulting Ltd
Location
London, United Kingdom
Employment Type
Contract
expertise across CICS, z/OS and IBM WebSphere Liberty to support a major enterprise transformation programme. This role focuses on the engineering, configuration, optimisation and support of modern Java workloads running within CICS Liberty environments. Key Skills & Experience: Deep knowledge of CICS systems engineering and z/… infrastructure CICS region setup, configuration and JVM server management IBM WebSphere Liberty administration and runtime configuration Java workload management, JVM tuning and performance optimisation RACF, TLS, certificates, keyrings and security integration REST/API enablement and modern integration practices Problem determination using dumps, traces, logs and SMF data ...

Head of Engineering – Client Experience

Hiring Organisation
Jobleads-UK
Location
Dean Street, England, United Kingdom
deployment and maintenance, ensuring high‐quality outcomes across all phases. Implement best practices in coding, testing, and maintenance to enhance system scalability, reliability, and performance – particularly for the complex configuration and data management workflows that underpin client administration. Ensure compliance with relevant data protection and security standards, given … sensitive nature of client and member data managed by these teams. Set a high bar for software engineering excellence, emphasising efficiency, performance optimisation, and high availability. Act as a mentor to tech leads and managers across the Engineering organisation. Experience and Skills You Need in this Role: Experience ...

Head of Engineering (Client Experience)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
deployment and maintenance, ensuring high‐quality outcomes across all phases. Implement best practices in coding, testing, and maintenance to enhance system scalability, reliability, and performance – particularly for the complex configuration and data management workflows that underpin client administration. Ensure compliance with relevant data protection and security standards, given … sensitive nature of client and member data managed by these teams. Set a high bar for software engineering excellence, emphasising efficiency, performance optimisation, and high availability. Act as a mentor to tech leads and managers across the Engineering organisation. Experience and Skills You Need in this Role: Experience ...

SAP Technical Architect - 12-Month Contract - Inside IR35 - Hybrid (Leeds, 3-4 Days Onsite)

Hiring Organisation
Hamilton Barnes
Location
Leeds, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Basis, ABAP, Fiori/UI5, and integration teams Design and review end-to-end SAP and non-SAP integration patterns Support SAP landscape design, performance optimisation, high availability, and disaster recovery strategies Conduct technical impact assessments, architecture reviews, and troubleshooting activities Ensure compliance with SAP security, governance … Technical Architecture experience across SAP S/4HANA and SAP ECC Deep understanding of SAP Basis, SAP HANA, landscape design, HA/DR, and performance tuning Experience with SAP BTP Integration Suite (CPI), SAP PI/PO, APIs, IDocs, and event-driven architectures Strong knowledge of SAP Fiori/ ...

FPGA Firmware Engineer

Hiring Organisation
Saxon Recruitment Solutions
Location
Ulverston, Cumbria, North West, United Kingdom
Employment Type
Permanent
Salary
£70,000
throughput digital signal processing (DSP), beamforming, and robust operation in demanding subsea environments. The FPGA Engineer will contribute to the development of reliable, high-performance embedded systems deployed in offshore, marine, defence, and scientific applications. What you'll do: 1. FPGA Architecture & Real-Time Signal Processing Develop FPGA designs … processing Beamforming algorithms Pulse compression and matched filtering Implement high-speed streaming data pipelines Optimise fixed-point arithmetic for deterministic real-time performance Design low-latency architectures suitable for active sonar systems. 2. High-Speed Interface Development Implement and validate interfaces such as: High-speed ADC/DAC interfaces ...

C# .NET Developer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Support and troubleshoot production systems and live environments Collaborate with global teams including infrastructure, support, and business users Contribute to system improvements, upgrades, and performance optimisation Essential Skills Strong experience with C#/.NET Proven experience with WPF and/or WinForms Experience developing desktop-based applications Ability ...

Senior C++ Programmer

Hiring Organisation
IT Search & Select
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
mindset: improving quality without disrupting delivery Strong communication skills and the ability to lead and mentor a team Nice to have: Experience with multithreading, performance optimisation, or low-level systems Familiarity with Linux development environments Exposure to static analysis, sanitizers, fuzzing, or property-based testing Why Join High ...

React Engineer (AWS, Headless CMS, GraphQL)

Hiring Organisation
Hays
Location
Northampton, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent
Salary
£45,000
exposure to headless CMS platforms such as Hygraph * Good understanding of GraphQL and modern data fetching approaches * Understanding of PWA concepts and frontend performance optimisation * Strong communication skills, with the ability to engage non-technical stakeholders * Experience in ecommerce or complex web platforms is beneficial, namely Magento ...

Director of Partner Marketing

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
media partners (Google, Adobe, etc.). Demonstrated track record of building joint marketing programs that drive pipeline/demand, with strong analytical and performanceoptimisation skills. Experience conceptualising and executing content and storytelling around technical/enterprise offerings and professional services, for both marketing and executive audiences. Strong ...

Quantitative Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
leverage state of the art tools and components Bring new ideas and experimenting with new technologies Requirements Strong programming skills with Python (including performance optimization) Knowledge of data structures and algorithms Experience working in a front office environment with researchers and traders Strong education background in STEM #J ...

Software Engineer - Aerospace - Oxfordshire

Hiring Organisation
Bond Williams Limited
Location
Kidlington, Oxfordshire, South East, United Kingdom
Employment Type
Permanent
company is building a unified software platform that consolidates commercial and internal engineering tools. This platform will accelerate their design exploration, enabling faster performance optimization and rapid scaling for new applications. They are seeking a motivated Software Engineer to develop this platform. Working alongside Aerothermal Designers and Mechanical Engineers ...

Servicenow Architect

Hiring Organisation
CODEVERSE LIMITED
Location
Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £80,000 per annum
strategy and business objectives across all product lines. Lead solution design for TSM, TSOM, CPQT, and SPMT modules, including configuration, customisation, workflow automation, and performance optimisation. Govern platform standards, design patterns, and architectural guardrails to ensure scalability, maintainability, and security across all implementations. Conduct architecture reviews, provide technical oversight ...

Mobile iOS Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with product brilliance. An ideal candidate meets at least the following requirements: Expert in Swift, with deep knowledge of SwiftUI and UIKit. Proficient in performance optimization—memory, CPU, GPU—using low‐level tools to deliver blazing‐fast systems. Experienced in designing and shipping intuitive, pixel‐perfect mobile UIs that ...

Director of Growth

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£145,000 - £160,000 per annum
unlocking new growth opportunities. The Role Own the commercial strategy for a subscription-based streaming product, driving revenue growth and improving P and L performance Define and deliver the commercial roadmap, including pricing, positioning, and go-to-market strategy Lead cross-functional teams across product, marketing, analytics, finance … plans Develop and optimise subscription mechanics, including acquisition, retention, and churn reduction strategies Use data and insight to inform decision making, customer segmentation, and performance optimisation Influence senior stakeholders across the organisation, including C-suite, to align on strategy and delivery Identify new market opportunities, partnerships, and product ...

Java Developer - Payments

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £130000/annum
ability to design and implement production-grade services. Solid experience working with relational and document-oriented databases (SQL and NoSQL), including data modelling and performance optimisation. Experience building and operating containerised applications (e.g., Docker, Kubernetes), with a clear understanding of deployment, runtime behaviour, and production operations. Strong understanding … communication skills, able to engage across engineering, product, and senior business stakeholders. Nice to have: Experience with distributed caching solutions and patterns to improve performance and scalability in high-throughput systems. To find out more about Huxley, please visit (url removed) Huxley, a trading division of SThree Partnership ...