15 of 15 Contract Performance Optimisation Jobs in London

Senior SAP BTP Integration Lead

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £700/day
security specialists, and functional leads to ensure integration patterns meet government data standards and security requirements. Championing best practices in error handling, monitoring, and performance optimisation, you will promote reusable artefacts and patterns across the programme. Effective stakeholder engagement and clear communication are essential, as you will regularly … regulated environments * Knowledge of SAP S/4HANA integration strategies * Familiarity with enterprise architecture frameworks and security standards * Experience with error handling, monitoring, and performance optimisation in enterprise integrations This is an exciting opportunity to contribute to a high-profile government programme, working with cutting-edge SAP technology ...

OneStream Technology Lead/Developer

Hiring Organisation
Tria Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £650 per day
dimensions, workflows, and security models Build and enhance reports, dashboards, and analytic views Support and maintain data integrations, APIs, and connectors Ensure data integrity, performance optimisation, and adherence to best-practice governance Act as a technical lead, providing code reviews, documentation, and mentoring to other developers Support production ...

Senior Golang Engineer

Hiring Organisation
PCR Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Inside IR35
years of relevant industry experience Significant experience with Golang and Git/GitHub SCM Strong experience with coding techniques and standard methodologies for security, performance optimization, and ease-of-use Experience in utilisation and deployment of cloud technologies in AWS or GCP , experience in container technologies such as Docker … through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript ...

Contract Android Engineer - Central Government Project (Inside IR35)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 500 per day
handling sensitive data Desirable Skills: Experience with modern Android architecture (e.g., MVVM, Clean Architecture) Familiarity with CI/CD pipelines and automated testing Performance optimisation and app scalability experience Experience working on high-traffic or mission-critical applications What You'll Bring: A strong focus on delivery ...

SC Cleared / Clearable Salesforce Marketing Cloud Developer

Hiring Organisation
Damia Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £700 per day, OTE
within Audience Builder and Contact Builder Develop and maintain Content Builder assets including emails, landing pages and dynamic content blocks Implement tracking, reporting and performance analytics using Marketing Cloud Intelligence (Datorama) and built-in analytics tools; experience with Marketing Analytics platforms is highly desirable Work with Marketing Cloud Advanced … Salesforce CRM data sync management Understanding of email compliance, GDPR, suppression and consent management requirements Experience with Marketing Cloud reporting, campaign analytics and performance optimisation Desirable Experience with Marketing Cloud Advanced (Personalization/Interaction Studio); real-time personalisation, web and email recommendations, Einstein features Familiarity with Marketing Cloud ...

Salesforce Marketing Cloud Developer

Hiring Organisation
Damia Group Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day Inside IR35
within Audience Builder and Contact Builder Develop and maintain Content Builder assets including emails, landing pages and dynamic content blocks Implement tracking, reporting and performance analytics using Marketing Cloud Intelligence (Datorama) and built-in analytics tools; experience with Marketing Analytics platforms is highly desirable Work with Marketing Cloud Advanced … Salesforce CRM data sync management Understanding of email compliance, GDPR, suppression and consent management requirements Experience with Marketing Cloud reporting, campaign analytics and performance optimisation Desirable Experience with Marketing Cloud Advanced (Personalization/Interaction Studio); real-time personalisation, web and email recommendations, Einstein features Familiarity with Marketing Cloud ...

Prduct Owner

Hiring Organisation
COMXPS LTD
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £600 per day
with engineering teams Understanding of programming concepts, including data structures, algorithms, and software design patterns Knowledge of technical architecture, including system design, scalability, and performance optimisation Proven ability to work effectively with cross-functional teams, including engineering, commercial teams, and senior management Experience leading geographically distributed teams Experience ...

Rust Developer

Hiring Organisation
XPERT-CAREER LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 per day
Rust Developer – Contract Opportunity Role Overview A leading technology-driven trading firm is seeking an experienced Rust Developer to join its high-performance engineering team. In this role, you will play a key part in designing, developing, and maintaining low-latency, mission-critical trading systems. This opportunity offers … fast-paced and intellectually stimulating environment where your work will have a direct impact on business performance. Key Responsibilities Develop and maintain high-performance trading applications using Rust Write clean, scalable, and well-tested code Collaborate closely with engineers, quantitative analysts, and operations teams to deliver reliable solutions Contribute ...

IOS Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£400 - £401 per day
Collaborating closely with Product, Design, Backend, QA, and DevOps teams to deliver new features and enhancements Troubleshooting and resolving issues to ensure optimal app performance, security, and quality Participating in code reviews, architecture discussions, and staying updated with the latest iOS technologies and Apple guidelines Managing your workload independently … Proven experience in building and maintaining iOS applications with Swift and/or Objective-C Strong understanding of iOS development best practices, security, and performance optimisation Excellent communication skills and the ability to work collaboratively across teams Ability to manage tasks independently and contribute to technical discussions Familiarity ...

Contract iOS Engineer - Central Government Project (Inside IR35)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 500 per day
Strong understanding of secure coding practices and data protection considerations Desirable: Experience with CI/CD pipelines and automated testing for iOS Knowledge of performance optimisation and scalability in mobile apps Previous experience delivering services to large user bases What You'll Bring: A pragmatic, delivery-focused mindset ...

SC Cleared SAP UX Lead

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £550/day
high-quality, compliant user interfaces Desirable skills: * Knowledge of GDS design principles and standards * Experience with Fiori Elements and Fiori Launchpad configuration * Familiarity with performance optimisation for SAP Fiori apps * Previous involvement in digital transformation projects within the public sector This is an exciting opportunity to contribute ...

Freelance SRE/CDN Engineer

Hiring Organisation
Red - The Global SAP Solutions Provider
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
/Infrastructure Engineer with strong CDN experience for a short-term freelance assignment. You will support a fast-moving technical environment, focusing on reliability, performance, scalability, and CDN-related optimisation. Key requirements: Strong hands-on experience with CDN technologies such as Akamai, Cloudflare, Fastly, CloudFront or similar Solid background … Site Reliability Engineering, Infrastructure, Platform Engineering or DevOps Experience with performance optimisation, caching, traffic routing, edge delivery, DNS, monitoring and incident response Comfortable working in high-availability, production-critical environments Able to work 2-3 days per week on-site near London Freelance availability for an initial ...

Data Centre Architect

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
teams to ensure design to run alignment. Reliability, Capacity & Resilience Design DC architectures for high availability, redundancy, DR, and fault tolerance. Support capacity planning, performance optimisation, and lifecycle management. Participate in failure analysis, RCA reviews, and corrective architecture enhancements. Ensure infrastructure designs minimise single points of failure. Operational ...

Compute Lead

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
months rolling Location: London (Hybrid) Inside IR35 Job description As the Compute & Cloud Leader, you will be responsible for the operation, stability, and optimisation of enterprise compute platforms, spanning Cloud (primarily Azure), Linux, AIX, Windows, VMware, and Red Hat environments. You will lead a team of outsourced specialists … configuration standards across all compute environments. * Manage lifecycle activities, including End-of-Life (EoX) planning, upgrades, and migrations. * Oversee platform monitoring, capacity management, and performance optimisation. * Implement standard operating procedures and ensure consistency across compute services. * Collaborate with engineering and architecture teams to influence design for operability. * Drive automation ...

OutSystems Developer (LowCode Orchestration)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day
integrations (REST, SOAP, OAuth, SQL, message queues). Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle). Knowledge of application security, performance tuning, and scalable app design. Job Description: Mandatory Skills: OutSystems OutSystems Developer (Low-Code Orchestration) Role Overview The OutSystems Developer focuses on building scalable … Design workflow orchestrations, process automation, and data models. Develop logic, integrations, and reusable UI patterns and modules. Implement role-based access, security configurations, and performance optimisations. 2. Integration & API Management Integrate with backend systems (REST/SOAP APIs, databases, SAP, CRM). Build and maintain integrations ensuring reliability ...