8 of 8 Contract Middleware Jobs in London

C# Developer - Risk IT

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £720 per day
London - Contract - Hybrid *inside iR35* What You'll Be Doing Designing and developing enterprise-grade solutions in an Agile team. Building and maintaining middleware services using C# , REST APIs , FIX messaging , XML , and Microservices . Leading architecture discussions, code reviews, and release management. Collaborating with users and cross-functional teams ...

Programme Test Manager - Azure Migration

Hiring Organisation
Tria
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£540 - £560/day
capability and the ability to lead resolution of complex test challenges. Deep technical understanding of Azure Cloud services (GCP experience beneficial), modern web and middleware technologies, APIs, mobile, and infrastructure components. Good knowledge of database technologies including Oracle and BigQuery. Experience with interface technologies, including file-based and data transfer ...

Finance Systems ERP Tech Lead

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £681.03 per day
balance sheet and consolidated reporting , and what changes when entities are merged. Technical appreciation rather than hands-on coding: comfortable discussing SQL, ETL, XML, middleware/integration patterns and data-warehouse/reporting flows with developers and challenging solutions. Experience leading small, mixed onshore/offshore teams and working with ...

ServiceNow Technical Consultant (contract)

Hiring Organisation
Nelson Frank
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £900/day
leadership and guidance during implementations and upgrades Translate functional requirements into robust technical designs Build and support integrations using REST/SOAP APIs and middleware where required Ensure solutions adhere to ServiceNow best practices and platform standards Support testing, UAT, deployment, and post-go-live activities Troubleshoot and resolve complex ...

AI Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
latency, cost). Production monitoring: hallucination/guardrail incidents, drift, telemetry dashboards Required Skills & Experience: Python for application glue; Fast API for inference/middleware services. LLM integration patterns (prompt engineering, RAG, tool-use/agents, function calling). Evaluation & safety: automated prompt/response evals, LLM-as-a-judge ...

Salesforce Solution Architect

Hiring Organisation
167 Solutions Ltd
Location
North West London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £600 to £750 per day
Deep understanding of platform architecture, data modelling, security and automation. Experience addressing legacy debt, data deduplication and platform stabilisation. Strong grasp of API integrations, middleware and multi system architectures. Background in establishing or contributing to a Salesforce Centre of Excellence. Experience embedding governance, standards and quality assurance. Salesforce certifications such ...

Android Graphics Software Engineer

Hiring Organisation
Microtech Global Ltd
Location
West London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £70 per hour
Android Graphics stack (SurfaceFlinger, SKIA, HWUI, etc.) Analyse different graphics workloads, identify bottlenecks and optimise for performance and power usage Develop optimal middleware libraries based on graphics and compute APIs (such as Vulkan & OpenGL ES) Bring-up and evaluate new devices, working with other teams to define and implement … mobile devices with a good understanding of the latest development environments Expertise in computer graphics with experience in the design and development of middleware based on Vulkan (preferred), OpenGL ES, OpenGL or DirectX Understanding of computer graphics pipelines and modern mobile GPU architectures Expert proficiency in C and C++ programming ...

Solution Architect - (HCM) SC Cleared

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800 per day + Umbrella rate (inside IR35)
Workday integration strategy and roadmap for ecosystem readiness. Technical Design: Design complex integration patterns utilising Workday Studio, EIB, Core Connectors, PECI, and APIs. Middleware Expertise: Leverage experience with middleware platforms (e.g., MuleSoft, Boomi, Azure Integration Services) to connect Workday to third-party and legacy systems. Delivery Management: Oversee the build ...