Performance Optimisation Jobs in the South East

26 to 46 of 46 Performance Optimisation Jobs in the South East

Rust Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Tiro Partners Limited
collaboration What we're looking for: 3+ years of hands-on Rust development experience (or strong systems background with proven Rust adoption) Deep understanding of distributed systems, multithreading, and performance optimisation Experience building cloud-native services on AWS, GCP, or similar Engineers who care about clean, efficient code and delivering real business value Bonus: background in retail tech … you'll do: Build and maintain critical services and APIs in Rust Help design and evolve our event-driven microservice ecosystem using Rust as a core language Write high-performance code to support large-scale data and transaction flows Contribute to team-wide standards and architectural best practices in our Rust codebase Work cross-functionally with product, data, and More ❯
Employment Type: Full-Time
Salary: £65,000 - £80,000 per annum
Posted:

TypeScript Node.JS Developer on AWS

Central London, Oxford Circus, Greater London, United Kingdom
Expert Employment
world class AWS event driven design that delivers high performing Artificial Intelligence and Machine Learning services. This will be a challenging and varied position developing new features and APIs, performance optimisation, CICD and test suite improvement, updating core software and infrastructure libraries used across many client services, supporting Data Science and deploying ML systems. More ❯
Employment Type: Permanent
Salary: £70000 - £100000/annum
Posted:

Senior TypeScript Backend Software Engineer

Central London, Oxford Circus, Greater London, United Kingdom
Expert Employment
world class AWS event driven design that delivers high performing Artificial Intelligence and Machine Learning services. This will be a challenging and varied position developing new features and APIs, performance optimisation, CICD and test suite improvement, updating core software and infrastructure libraries used across many client services, supporting Data Science and deploying ML systems. More ❯
Employment Type: Permanent
Salary: £70000 - £95000/annum Full Package
Posted:

Senior Full-Stack Engineer (React / NodeJS)

London, South East, England, United Kingdom
Hybrid / WFH Options
Metamindz UK
TypeScript, NodeJS, Express, and NestJS; Develop responsive and mobile-friendly front-end interfaces using modern styling libraries (Tailwind, Material UI, SCSS, etc.); Optimize both front-end and back-end performance, including database queries and API efficiency; Work with MongoDB and Mongoose, design efficient database schemas, indexes, and ensure optimal DB performance; Implement background workers and asynchronous processing where … with modern styling libraries such as Tailwind, Material UI, or SCSS; Strong understanding of responsive design and mobile-first front-end development; Experience working with MongoDB, Mongoose, and database performance optimization (indexes, schema design); Experience implementing background workers and asynchronous processing; Strong problem-solving skills, ownership mentality, and attention to detail; Excellent communication skills and ability to work independently More ❯
Employment Type: Contractor
Rate: £75,000 - £95,000 per annum
Posted:

Zscaler Consultant

London, South East, England, United Kingdom
Hybrid / WFH Options
Solutions Through Knowledge
access controls to protect against cyber threats effectively. Advanced Troubleshooting: Utilize your deep knowledge and experience to troubleshoot complex issues related to Zscaler AI Firewall deployments. Address and resolve performance, connectivity, and security incidents promptly. Performance Optimization: Continuously monitor and fine-tune Zscaler configurations and policies for optimal performance. Adjustment to improve risk mitigation, accuracy, routing of traffic More ❯
Employment Type: Contractor
Rate: £500 - £600 per day
Posted:

Business Partner - Support Services

Worthing, Sussex, United Kingdom
GSF Car Parts Limited
digital solutions with existing business systems. Partnership Management: Cultivate strong relationships with internal departments, external partners, and third-party vendors to collaborate on solution development, implementation, and ongoing support. Performance Optimization: Continuously monitor and analyze the performance of digital solutions, identifying areas for improvement and implementing enhancements to optimize efficiency, productivity, and cost-effectiveness. Compliance and Security: Ensure More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Storage SME

Wokingham, Berkshire, United Kingdom
Experis
Umbrella The successful candidate will hold or be eligible for SC Clearance Role Description: - Storage Architecture & Strategy: Design, develop, and implement advanced storage solutions that align with business objectives. - Performance Optimisation: Monitor and enhance storage performance and availability while ensuring data integrity and compliance. - Storage Technologies: Manage and maintain SAN, NAS, DAS, and cloud storage solutions (AWS More ❯
Employment Type: Contract
Rate: £500 - £515/day
Posted:

Senior Apple iOS Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Salt Search
managers, designers, and other developers to define, design, and ship new features Write clean, scalable, and maintainable code following Apple's Human Interface Guidelines Identify and fix bugs and performance bottlenecks Integrate with RESTful APIs and third-party libraries/services Ensure the performance, quality, and responsiveness of applications Participate in code reviews and contribute to continuous improvement … level knowledge of Swift and strong experience with Objective-C Deep understanding of UIKit, CoreData, CoreAnimation, CoreLocation, AVFoundation, and other native frameworks Strong knowledge of Xcode, debugging tools, and performance optimization Experience with modern architectural patterns such as MVVM, VIPER, or Clean Architecture Familiarity with SwiftUI and Combine is a plus Strong understanding of Apple's design principles and More ❯
Employment Type: Contractor
Rate: £350 - £450 per day
Posted:

Performance AM - B2B

London, South East, England, United Kingdom
Sphere Digital Recruitment
strategic success across SEO, PPC, Paid & Organic Social, this one's for you. The Role You'll be the go-to contact for clients, owning relationships and driving digital performance through expertly executed campaigns. From strategic planning through to execution and reporting, you'll ensure that every touchpoint delivers value, results, and exceptional service. What You'll Be Doing … and Paid Social campaigns Building and delivering strategic digital roadmaps that align with business goals Managing projects end-to-end, collaborating closely with internal teams including Web, Content, and Performance Driving revenue growth through proactive account development and performance optimisation Taking ownership of forecasts, budgets, and billing within CRM and finance systems Coaching and supporting junior team … members, while also helping onboard new starters Championing excellent client service, retention and satisfaction across all accounts Keeping clients informed with clear reporting on performance, progress and outcomes You'll Need 2+ years' experience in a digital agency environment, managing integrated campaigns A strong background in digital strategy across PPC, SEO, and Paid Social Experience working with B2B clients More ❯
Employment Type: Full-Time
Salary: £35,000 - £45,000 per annum, Negotiable, Pro-rata, Inc benefits, OTE
Posted:

Mobile Application Developer - Contract

Thame, Oxfordshire, South East, United Kingdom
Robert Half
Robert Half are recruiting for a Contract Mobile Application Developer for a short-term engagement focused on code review, documentation, and recommendations for performance and efficiency improvements . The application is live on both Android and iOS , and the codebase is built using Xamarin (C#) with separate platform projects and a shared core. Key Responsibilities: Conduct a thorough code … review of the existing Xamarin solution Produce clear and structured technical documentation Identify opportunities for performance optimisation , codebase efficiency , and modernisation Provide actionable recommendations for future development and maintenance Key Technical Requirements: Strong experience with Xamarin.Forms or Xamarin Native (Android/iOS) Proficiency in C# , .NET , and Visual Studio Familiarity with mobile architecture , dependency injection , and cross-platform More ❯
Employment Type: Contract
Posted:

Network Architect - DV Cleared

Basingstoke, Hampshire, South East, United Kingdom
Experis
of medium to large-scale network infrastructures to defined project timelines * Provide end-to-end support including installation, troubleshooting, resolution, and proactive maintenance * Liaise with project SMEs to ensure performance optimisation and high customer satisfaction * Contribute to architectural design, implementation, and governance of technical solutions What You'll Be Doing * Delivering project work in line with customer specifications … standards * Creating and managing as-fitted documentation and handling ECR processes with customer authorities * Proactively identifying and resolving technical issues, working with third parties when necessary * Ensuring system performance remains within SLA parameters * Supporting continuous improvement through adoption of new tools, technologies and best practices What We're Looking For * Strong hands-on experience with Juniper or Cisco networking More ❯
Employment Type: Contract
Rate: Up to £600 per day
Posted:

Azure Data Architect - London

London, South East, England, United Kingdom
Atrium Workforce Solutions Ltd
financial data. Collaborate with accounting teams & stakeholders to understand business requirements & translate them into scalable Azure data solutions, using services & applications like SAP Datasphere and Power BI. Establish monitoring, performance optimisation & disaster recovery strategies for the Azure data hub Understanding of the Energy/Oil & Gas sector Click Apply now to be considered for the Azure Data Architect More ❯
Employment Type: Contractor
Rate: £550 - £650 per day
Posted:

C++ Software Engineer

Stevenage, Hertfordshire, South East, United Kingdom
Morson Talent
teams to ensure seamless integration and timing alignment between software and capture cards. • Lead and contribute to system integration, verification, and testing at both component and system levels. • Conduct performance analysis, debugging, and optimisation of real-time systems. • Document architecture, interface definitions, and test procedures to support handover and formal test activities. ? Key Skillset Essential: • C++ development in … custom state machines for test execution. • Strong experience with integration, system test, and debugging complex interactions between software and hardware. • Strong understanding of software design principles, memory management, and performance optimisation. • Version control systems (e.g., Git) and CI/CD pipelines. Desirable: • Knowledge of SFPDP (Serial Front Panel Data Port) specifically in defence, aerospace, or data acquisition contexts. • Knowledge More ❯
Employment Type: Contract
Rate: £0 - 67 per hour + Inside IR35
Posted:

C++ Software Engineer

Stevenage, Hertfordshire, South East, United Kingdom
Hybrid / WFH Options
Certain Advantage
teams to ensure seamless integration and timing alignment between software and capture cards. Lead and contribute to system integration, verification, and testing at both component and system levels. Conduct performance analysis, debugging, and optimisation of real-time systems. Document architecture, interface definitions, and test procedures to support handover and formal test activities. Skillset/experience required: Extensive experience … custom state machines for test execution. Strong experience with integration, system test, and debugging complex interactions between software and hardware. Strong understanding of software design principles, memory management, and performance optimisation. Experience with version control systems (e.g., Git) and CI/CD Desirable Skills: Experience with SFPDP (Serial Front Panel Data Port) specifically in defence, aerospace, or data acquisition More ❯
Employment Type: Contract, Work From Home
Rate: £67 per hour, Benefits Overtime Rate
Posted:

Salesforce Developer / Technical Architect - PE/Fund Admin

London, South East, England, United Kingdom
Eames Consulting
experience preferred) Collaborate with business and compliance teams to ensure system design meets regulatory standards (including exposure to US financial regulations where relevant) Contribute to architecture decisions, governance, and performance optimisation across the Salesforce estate Requirements: Extensive Salesforce development experience (APEX, LWC, Experience Cloud) Strong understanding of Salesforce integration patterns (REST/SOAP APIs, MuleSoft) Background in Financial More ❯
Employment Type: Contractor
Rate: £550 - £750 per day
Posted:

Systems Engineer II

Fareham, Hampshire, United Kingdom
Hybrid / WFH Options
Matchtech
when appropriate. Key Responsibilities: Capture and define requirements through a disciplined and rigorous approach to requirements engineering Construct and implement embedded engineering solutions including detailed design, technical reviews, and performance optimisation Plan and document system verification across various tests such as system tests, development tests, component tests, integration tests, and flight tests Generate work products conforming to all More ❯
Employment Type: Permanent
Posted:

Murex Consultant ((Spanish-speaking, EU time zone)

Uxbridge, Middlesex, United Kingdom
N Consulting Limited
EU time zone) Duration: Rolling contract Project Type: Ongoing Overview: We are seeking a Senior Technical Murex Consultant with proven hands-on experience in system services, environment management, and performance optimization. The ideal candidate will independently manage complex tasks and support major Murex upgrade projects. Key Responsibilities: Manage and optimize Murex environments (production & non-production) Lead technical maintenance and … system upgrade initiatives Troubleshoot performance and integration issues Script and automate routine tasks for environment efficiency Requirements: Deep knowledge of Murex architecture Experience with system upgrades and environment management Strong scripting skills (Unix Shell, Python, etc.) Solid troubleshooting and problem-solving abilities Spanish-speaking is a plus , not mandatory Must work within EU time zone More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

D365 CE Technical Architect

London, South East, England, United Kingdom
Hybrid / WFH Options
Nigel Frank International
s using Azure services. Conduct workshops to translate business requirements into scalable technical architectures aligned with Microsoft best practices. Guide delivery teams in customization, development, and deployment while ensuring performance optimization and documentation. Mentor team members, support pre-sales demos, and stay updated on Microsoft ecosystem advancements. Skills and Qualifications: 8+ years of CRM experience, with proven Solution Architect More ❯
Employment Type: Full-Time
Salary: £80,000 - £90,000 per annum
Posted:

Infrastructure Engineer Azure -URGENT

London, South East, England, United Kingdom
eTech Partners
Maintain and enhance integrations within the Azure environment Collaborate with IT security teams to ensure cloud privacy and compliance Support and maintain the infrastructure technology stack to ensure optimal performance and availability Configure, administer, install, and maintain server hardware and software Contribute to the development and execution of technology roadmaps Lead and manage projects from inception to completion where … LLDs) Skills/Experience Needed Solid understanding of Azure cloud services. Expertise in Active Directory Proficiency in PowerApps, Dataverse, Logic Apps, and Function Apps Solid understanding of cloud security, performance optimisation, and cost management best practices. Windows Server Intermediate Exchange Knowledge My client is looking to recruit URGENTLY, please send your CV in Word format to be considered More ❯
Employment Type: Full-Time
Salary: £70,000 - £75,000 per annum
Posted:

Senior Customer Lifecycle Manager

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
collaborative marketing efforts. With exciting growth underway, role is ideal for someone who thrives in fast-paced environments and brings strong experience in lifecycle management, partnership-led campaigns, and performance optimisation through A/B testing. SKILLS + EXPERIENCE Experience in customer lifecycle - with CRM or marketing experience Strong experience in Partnership-led roles Confident communicator who can … present back to senior leadership Someone commercially and strategically minded, but happy to roll their sleeves up Strong grasp of campaign optimisation, A/B testing, and data-driven strategy Ideally has experience leading/coaching junior team members HOW TO APPLY If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham More ❯
Employment Type: Full-Time
Salary: £65,000 - £75,000 per annum
Posted:

Salesforce Platform Architect

Reading, Berkshire, United Kingdom
Keyloop
Hands-on expertise in Salesforce Lightning Experience, Apex including FFLib, Lightning Web Components, Flow Builder, and Integration (REST/SOAP, MuleSoft, Platform Events). Strong understanding of Salesforce security, performance optimization, and data modeling. Salesforce certifications strongly preferred: Application Architect, System Architect, B2C Solution Architect, Integration Architect. Effective communicator who explains complex concepts clearly to stakeholders of all levels. … and we celebrate different employees and lifestyles - not just on key days, but every day. Be rewarded for your efforts We believe people should be paid based on their performance so our pay and benefits reflect this and are designed to attract the very best talent. We encourage everyone in our organisation to explore opportunities which enable them to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Performance Optimisation
the South East
10th Percentile
£51,125
25th Percentile
£80,313
Median
£82,500
75th Percentile
£83,750
90th Percentile
£92,000