176 to 200 of 270 Performance Optimisation Jobs in the UK

Network Engineer (NPPV3)

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
Northampton, Towcester, Northamptonshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
enterprise Fortinet environments Define and maintain security architecture standards, operational models, and best practices Provide technical oversight for large-scale Fortinet deployments, migrations, and optimisation initiatives Work closely with SOC, infrastructure, networking, and security engineering teams Act as the senior escalation point for complex Fortinet architecture and operational challenges … workflows Compliance reporting and audit outputs SIEM interoperability and operational analytics Secure SD-WAN SLA rule creation and traffic steering Link health checks and performance optimisation ADVPN architecture and dynamic overlay networking Hub-and-spoke topology design Network segmentation and security zoning strategy UTM/NGFW Leadership ...

Staff DevSecOps Engineer

Hiring Organisation
Lockheed Martin
Location
Brockworth, Gloucestershire, UK
Engineer within our DevSecOps team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working … experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Design, build, deploy and manage a broad set of IT Infrastructure aligning to customer ...

Staff DevSecOps Engineer

Hiring Organisation
Lockheed Martin
Location
Brockworth, England, United Kingdom
Engineer within our DevSecOps team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working … experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Design, build, deploy and manage a broad set of IT Infrastructure aligning to customer ...

Infrastructure Engineering, AVP-2

Hiring Organisation
State Street
Location
Greater London, United Kingdom
Employment Type
Full Time
maintain platform observability frameworks using: Prometheus, Grafana, Dynatrace, Elasticsearch Azure Monitor, Log Analytics OpenTelemetry (where applicable) Ensure proactive monitoring of cluster health, application performance, and infrastructure metrics Drive incident management practices , root cause analysis (RCA), and continuous reliability improvements Define and enforce SLOs, SLIs , and platform health KPIs Security … Dynatrace, Prometheus, Grafana, OpenTelemetry Experience influencing or owning platform/product roadmaps in partnership with Product Management. Solid background in cloud native engineering concepts, performance optimization, security, and governance. Soft Skills & Leadership Capabilities Strong communication and presentation skills, with the ability to influence senior leadership and client levels. Demonstrated ...

Software Engineer (.NET & Cloud Platforms)

Hiring Organisation
AXISCADES
Location
Filton, England, United Kingdom
framework, deployed on Airbus OpenShift Container Platform (OCP) . The ideal candidate brings a deep understanding of cloud-native architecture, distributed systems, and high-performance database management. You will play a pivotal role in modernizing our technical stack and ensuring our platforms meet the rigorous uptime and security standards … . Database Management: Architect and optimize complex schemas, stored procedures, and queries in Microsoft SQL Server to handle high-frequency data ingestion and reporting. Performance Optimization: Implement and manage Redis for distributed caching to reduce database latency and improve system throughput. DevOps Integration: Collaborate with infrastructure teams to build ...

Lead Engineer

Hiring Organisation
scrumconnect ltd
Location
Swansea, West Glamorgan, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
mentor a team of Back End developers Collaborate with product managers, architects, DevOps, and stakeholders Ensure adherence to coding standards, security practices, and performance benchmarks Drive CI/CD, automation, and DevOps best practices Review code, enforce quality standards, and manage technical debt Participate in hiring, onboarding, and team …/Azure/GCP ) Strong knowledge of Docker, Kubernetes , and container orchestration Expertise in database design ( SQL & NoSQL ) Strong understanding of security, scalability, and performance optimization Experience with Agile/Scrum and modern development practices Preferred Qualifications Experience in large-scale digital platforms or regulated environments (including exposure ...

Payments Product Manager - Online Payments

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
gateways, and third-party vendors Ensure compliance with SCA/PSD2, 3DS, PCI-DSS , and fraud prevention standards Support UAT, go-live, and ongoing performance optimisation Required Experience Proven experience as a Payments Product Owner/Manager focused on online payments Strong track record delivering PSP/gateway … Ecommerce payment flows (checkout, tokenisation, recurring payments) Card schemes (Visa, Mastercard, Amex) Digital wallets (Apple Pay, Google Pay) 3DS/SCA/authentication optimisation Payment decline management and retry logic Settlement, reconciliation, and chargebacks Experience improving checkout conversion and payment success rates Strong Agile delivery and stakeholder management experience ...

Android Kernel Developer

Hiring Organisation
European Tech Recruit
Location
Cambridge, England, United Kingdom
embedded systems, connected devices, and next-generation software platforms. This organisation works on advanced low-level software solutions across mobile, automotive, IoT, and high-performance computing environments, partnering with some of the world’s most recognised technology brands. We are seeking an experienced Android Kernel Developer to join … custom hardware environments. Collaborate closely with cross-functional hardware and embedded software teams. Troubleshoot complex kernel, driver, and system-level issues. Improve system stability, performance, and scalability across embedded platforms. Required Experience Proven experience in Android or Linux kernel development. Strong background in BSP development and platform integration. Experience ...

Principal Design Engineer - RF & High Power Amplifier Systems

Hiring Organisation
Verso Recruitment
Location
Watford, Hertfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Principal Design Engineer – RF & High Power Amplifier Systems As a Principal Design Engineer, you will be responsible for the design and development of high-performance RF power amplifier systems across a broad frequency range, working on both existing and new product platforms. You'll collaborate with multidisciplinary engineering teams … solutions * Working across the full product lifecycle from concept, simulation and design through to test, validation and production * Conducting hands-on laboratory development, tuning, optimisation and fault finding * Supporting system integration activities involving RF, power electronics and control systems * Improving existing products to enhance performance, efficiency and reliability ...

SAS Consultant

Hiring Organisation
beaumont
Location
London Area, United Kingdom
development and experience progressing into senior SAS platform administration and leadership roles. You will be responsible for platform installation, migration, upgrades, monitoring, support, and performance optimisation across complex SAS environments. Key Skills & Experience Strong hands-on experience with SAS 9 and SAS Viya 4 Proven experience delivering … platform installations, migrations, upgrades, and support Strong troubleshooting skills across configuration and performance issues Experience working within large enterprise environments Ability to lead technical delivery and provide platform best practice guidance Client-Specific Experience Experience configuring, testing, and troubleshooting SAS/Hadoop connectivity and performance issues Experience supporting ...

iOS Developer

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
that shift. What You’ll Be Doing: Build and maintain a native iOS app in Swift and SwiftUI with modern concurrency Shape the architecture, performance, and quality of a consumer-grade health platform Integrate with connected hardware via Core Bluetooth and surface insights. Own features end-to-end - from … track record shipping production apps used by real customers Experience in a regulated environment (Health or similar) Solid grasp of mobile architecture, testing, and performance optimisation Comfortable working across product, design, and engineering Excited by AI-assisted development — the team uses Claude Code extensively Why Join This ...

Modem Stack Engineer

Hiring Organisation
Mars Recruitment
Location
Oxford, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum plus benefits
custom SDR-based networks. The successful candidate will work across embedded software, modem integration, and real-time communications environments to deliver high-performance and robust wireless solutions. Modem Stack Engineer e ssential experience: degree in Computer Engineering, Electronic Engineering, Telecommunications, Computer Science, or equivalent industry experience; strong proficiency … session management; familiarity with RTOS, embedded Linux, multi-threaded systems, and low-level debugging tools; experience using protocol analysers, logging frameworks, profiling tools, and performance optimisation techniques; strong analytical and debugging skills, with the ability to diagnose issues across multiple layers of the modem stack; ability to collaborate ...

Senior CRM Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
guide junior team members along the way. What you'll be doing: Developing multi-channel CRM strategies (email, push, SMS) Owning segmentation, journeys, and performance optimisation Turning data into clear, actionable insights Advising clients on CRM best practice and martech Presenting confidently to senior client stakeholders What ...

Linux Kernel Engineer

Hiring Organisation
Platform Recruitment
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £85000/annum
including for the trialing of new open-source technologies, as well as the prototyping of novel systems. Much of your work will focus on performance optimisation; strong C++ skills are critical for your success in this position . About you: 4+ years' commercial development experience Excellent kernel-level ...

Radio Frequency Engineer

Hiring Organisation
Reed Technology
Location
Leicester, Leicestershire, East Midlands, United Kingdom
Employment Type
Permanent
Salary
£55,000
devices Working across the full lifecycle: concept design test approval Developing solutions focused on low-power, microcontroller-driven systems Supporting RF testing, simulation, and performance optimisation Collaborating with firmware, production and wider engineering teams Ensuring designs meet regulatory and approval requirements Supporting manufacturing, testing and product release This ...

Network Engineer

Hiring Organisation
Chapman Tate Associates
Location
Portsmouth, England, United Kingdom
upgrade projects for clients nationwide - Provide 2nd/3rd line support for network-related incidents and service requests - Perform network troubleshooting, diagnostics, and performance optimisation - Work closely with internal teams and customers to ensure high service delivery standards - Maintain network documentation and ensure best practices are followed - Support ...

Murex Environment Manager / Technical Lead

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day
candidate will possess deep technical expertise in Murex architecture, environment management, release coordination, middleware, and infrastructure support, with strong experience managing platform stability, deployments, performance optimization, and incident resolution in a global banking environment. You must have several years of IT experience, including a number of years supporting Murex ...

Murex Environment Manager / Technical Lead

Hiring Organisation
Access Computer Consulting plc
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
candidate will possess deep technical expertise in Murex architecture, environment management, release coordination, middleware, and infrastructure support, with strong experience managing platform stability, deployments, performance optimization, and incident resolution in a global banking environment. You must have several years of IT experience, including a number of years supporting Murex ...

AWS Technical Architect

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £725/day
appropriate AWS services and implementing cost management strategies. High Availability and Disaster Recovery: Designing architectures for high availability and disaster recovery using AWS services. Performance Optimization : Tuning configurations and leveraging AWS services for optimal performance of applications and infrastructure. Monitoring and Logging: Implementing monitoring, logging, and alerting solutions … using AWS CloudWatch and CloudTrail to ensure the health, performance, and security of AWS environments. Technical Leadership and Collaboration: Providing leadership, guidance, and mentorship to team members, collaborating with cross-functional teams. Continuous Learning and Innovation: Staying updated with the latest AWS services and best practices, driving innovation ...

Product Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
well established global platform. The Role Own and develop card based product features including virtual cards and card lifecycle management Lead the design and optimisation of card to card payments and transaction journeys Drive integrations with external payment platforms such as mobile wallets Improve end to end payments experiences … with a focus on security, scalability and performance Monitor transaction success rates and use data to inform product decisions Collaborate closely with engineering and cross functional teams across distributed locations Support the continued rollout and scaling of payments products across new markets Your Skills and Experience Strong commercial product ...

Senior Data Engineer

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£80,000
maintain, and enhance reporting and analytics capabilities through tools such as PowerBI, Tableau, or QuickSight. Apply best practices in data governance, data quality, and performance optimisation. Operate in an agile environment, contributing to technical discussions and problem-solving initiatives. Senior Data Engineer Requirements: Proven experience in building and managing … Synapse, Google BigQuery/Dataflow). Strong programming skills in Python, SQL, and Java for data engineering tasks. Experience designing reliable, maintainable, and high-performance data pipelines and architectures. Broad understanding of data warehousing, data lakes, and lakehouse architectures. Familiarity with business intelligence and data visualisation tools. Excellent analytical ...

Senior Java Software Engineer - Low Latency

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers and ensure adherence to best coding practices. - Participate in code reviews and provide constructive feedback. - Stay updated with … Science, Engineering, or a related field. - Proven experience in Java development, with a focus on low-latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills ...

AV Network Engineer

Hiring Organisation
Alecto Recruitment
Location
Brixton, Devon, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 65,000 Annual
within some of the UK's most prestigious residential properties. The successful candidate will play a key role in delivering robust, secure and high performance networks that support integrated smart home, AV, security, lighting control and building management systems. This is NOT an IT support, MSP, cloud infrastructure … Ruckus wireless solutions Configure and maintain Fortinet firewall and security appliances Implement VLANs, routing, QoS, multicast and VPN technologies Perform network diagnostics, troubleshooting and performance optimisation Support integrated AV, automation and smart home systems from a networking perspective Produce and maintain network documentation, schematics and IP schedules Participate ...

AV Network Engineer

Hiring Organisation
Alecto Recruitment
Location
Brixton, London, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum Vehicle and benefits
within some of the UK's most prestigious residential properties. The successful candidate will play a key role in delivering robust, secure and high performance networks that support integrated smart home, AV, security, lighting control and building management systems. This is NOT an IT support, MSP, cloud infrastructure … Ruckus wireless solutions Configure and maintain Fortinet firewall and security appliances Implement VLANs, routing, QoS, multicast and VPN technologies Perform network diagnostics, troubleshooting and performance optimisation Support integrated AV, automation and smart home systems from a networking perspective Produce and maintain network documentation, schematics and IP schedules Participate ...

Oracle Data Integration Consultant

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£670/day
integrations, APIs, orchestrations, and file-based interfaces. Ability to produce high-quality functional and technical specifications. Experience with unit testing, error handling, logging, and performance optimisation. Strong experience supporting SIT and UAT phases, including defect resolution and fixes. Knowledge of ERP, HCM, Data, and Reporting integration landscapes. Strong stakeholder ...