12 of 12 Contract Web Services Jobs in London

Mulesoft Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£470 - £520/day
etc.) Java programming & experience with other programming languages such as XML, JSON, SQL Agile software development methodologies. Cloud-based integration platforms such as Amazon Web Services (AWS) or Microsoft Azure. API design and development. Knowledge of RESTful web services, SOAP, & other integration protocols Familiarity with ...

Salesforce Developer

Hiring Organisation
Anson Mccade
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
screen, triggered, and API flows) Build and configure OmniStudio components including OmniScripts, FlexCards, Action Plans, and Document Generation Develop custom Apex classes and Lightning Web Components (LWC) where required Ensure delivery aligns with established quality plans, best practices, and security standards Support CI/CD pipelines using Git-based … Salesforce Industries/OmniStudio (essential) Proven delivery experience within Public Sector Solutions Deep expertise in: OmniScripts Integration Procedures (fka Data Raptors) Apex (triggers, batch, web services) Lightning Web Components Integration experience (e.g. MuleSoft, Apigee, Connected Apps ) beneficial Solid understanding of Salesforce security and sharing models Experience working ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
Automation Engineer | Hybrid 3 days a week in office | London | Contract A leading financial services client in London is seeking a talented AI Automation Engineer to join their team on a contract basis. Please see below for key details. Role Overview: Analyse and optimise business processes for automation whilst … building end-to-end business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing ...

C# .NET Core Developer - Hybrid - Banking

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £415/day Inside IR35
inside IR35 Tech Stack C# .NET Core SQL/Oracle React/Typescript Role Deliver, modernise, and support business-critical applications, frameworks and services across our stack (.NET Framework/.NET Core, HTML/CSS/TypeScript/React, Python, SQL Server, Oracle). The role focuses on refactoring … codebases: modularisation, dependency updates, performance tuning, improved observability, and raising automated test coverage within CI/CD. Embed modern security patterns and controls across web services: strong authentication/authorization (e.g., OAuth2/OpenID Connect), token-based access, secure session management, least privilege/role-based access, mTLS ...

Oracle Cloud Integration Specialist - SC

Hiring Organisation
Aspect Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 650 Daily
with VBCS 2+ years of Oracle Integration Cloud (OIC) 2 years Oracle Fusion Cloud Experience Hands-on with development & unit testing of integration components & web services (SOAP/REST/JSON Payload) using OIC, Postman, Curl Oracle VBCS to develop custom elements of the service 3+ years' experience … auditing of privileged systems access. Provide the technical delivery progress, resolving issues and initiating appropriate corrective action Ensuring the delivery of new products or services from the technical workstream is to the appropriate level of quality in accordance with the workstream plan Knowledge of Change/Release Processes Devops ...

Infrastructure Design Engineer

Hiring Organisation
Indotronix Avani UK Ltd
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 per day
Development Experience 2+ years of Oracle Integration Cloud (OIC) 2 years Oracle Fusion Cloud Experience Hands-on with development & unit testing of integration components & web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Oracle VBCS to develop custom elements of the service 3+ years … auditing of privileged systems access. Provide the technical delivery progress, resolving issues and initiating appropriate corrective action Ensuring the delivery of new products or services from the technical workstream is to the appropriate level of quality in accordance with the workstream plan Knowledge of Change/Release Processes Devops ...

Salesforce Developer

Hiring Organisation
Anson McCade Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 650 Annual
5+ years developing with Salesforce Industry Cloud OmniStudio expertise is non-negotiable (OmniScripts, Data Mappers, Omni Processes) Strong Apex development skills (triggers, batch processes, web services) Proven track record with Lightning Web Components Experience with Flows and declarative automation Understanding of Apex sharing and security models Contract ...

M365 Engineer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Full-Time Please send me your cv direct About Us: We are a global leader in IT solutions, committed to delivering innovative and efficient services to our customers. We are seeking a highly skilled Microsoft 365 Engineer (M365) to join our team. This is an excellent opportunity to work … delivery of the customer Deployment and Adoption Experience for Office 365, EMS, and Windows 10 products. You will work closely with partners, Microsoft Enterprise Services engineering and support teams, field sales organizations, and Office 365 business groups. This role involves leading customers and partners through the Onboarding technical process ...

Lead Oracle Fusion Financial Consultant - FAH

Hiring Organisation
Fusion Practices Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
government clients, including leading banks and insurers. We are proud of our track record of industry recognition in the UK, where our products, services, and people have been consistently celebrated: ERP Today Innovation of the Year Award for our product GrantsNow built on Oracle PAAS. UKOUG 2025 Winner … other Oracle Financial modules (AP, AR, FA). Experience in designing accounting rules and event models within FAH. Familiarity with data integration tools (OIC, Web Services, or similar) is an advantage. Strong understanding of financial processes and accounting principles. Excellent analytical, communication, and problem-solving skills. Preferred Qualifications ...

Oracle Cloud Integrations Specialist

Hiring Organisation
SUMMER-BROWNING ASSOCIATES LIMITED
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £0.00 per day + Excellent Day Rates
Oracle Fusion Cloud Demonstrated experience connecting Oracle ERP and HCM through Oracle Integration Cloud Expert skills in developing and unit testing integration components and web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Solid experience with PaaS Cloud system interfaces To apply, please submit ...

Guidewire PolicyCenter Senior Developer

Hiring Organisation
Initialize IT
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
tool Expertise in Configuring PolicyCenter (typelists, entities, PCFs, workflows, rules engine). 2. Guidewire Integration Expertise Experience with Guidewire Integration mechanisms (Messaging, Web Services, Plugins, Batch Processes). Working knowledge of GX Model & Edge APIs,. Hands-on experience integrating with external systems using REST. Understanding of event ...

Appian Developer

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £550 per day
Developer – 6 Months – Remote – Outside IR35 We are looking for an experienced Appian Developer to support integration and automation initiatives within a leading financial services organisation. This role focuses on connecting systems, automating complex business processes, and improving operational efficiency. Key Responsibilities of the Appian Developer: Design, develop … maintain Appian applications to support fraud and spam prevention workflows. Build and manage system integrations (APIs, web services, and third-party platforms) Automate business processes to improve accuracy, speed, and resilience. Working with offshore teams to complete end-to-end delivery, from requirements gathering to deployment Ensure solutions ...