201 to 225 of 241 REST Jobs in London

Designing and implementing integration architectures aligned with enterprise patterns, SOA, API management, and microservices. Managing B2B protocols including EDI, AS2, FTP, HTTPS, XML, JSON, REST, and SOAP. Optimising system performance, capacity planning, and ensuring high availability. Collaborating with stakeholders, providing technical leadership, and supporting DevOps practices with CI/… Integration Server and API Gateway. Proven experience with Axway API Gateway and enterprise integration patterns. Hands-on knowledge of EDI, B2B protocols, XML, JSON, REST, and SOAP. Strong understanding of performance tuning, high-availability design, and cloud deployment. Excellent communication and stakeholder management skills. Must hold or be eligible ...

Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer … type safe programming language (Golang Preferred but other experience can be considered) Comfortable/experienced with back-end micro-service architecture and communication, specifically REST and asynchronous messaging services (e.g., Kafka, RabbitMQ etc.) Comfortable/experience within a Scrum framework working with as part of a team to deliver business ...

broader health systems integration. Main duties of the job Using expert knowledge develop and manage the Trust Integration Engine interfaces (HL7, FHIR, DICOM, REST etc.) Development and management of complex Epic Bridges interfaces Reporting/Responding to Interfaces related Adverse Incidents and escalations Responsible for Trust Integration Engine health management … Making equalities mainstream Job description Job responsibilities Duties and Responsibilities - Using expert knowledge develop and manage the Trust Integration Engine interfaces (HL7, FHIR, DICOM, REST etc.) Development and management of complex Epic Bridges interfaces Reporting/Responding to Interfaces related Adverse Incidents and escalations Responsible for Trust Integration Engine health ...

Online, including rewriting legacy web parts using SPFx. Build custom SPFx web parts, extensions and integrations using TypeScript, JavaScript, React, HTML/CSS, and REST APIs. Develop and maintain SharePoint Online intranet structures including architecture, navigation, branding, and content design. Integrate SharePoint with internal systems and third-party platforms using … development and administration. Strong background migrating SharePoint 2016 to SE/Online. Proven SPFx development skills. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint on-prem administration, performance tuning, patching and troubleshooting. Experience ...

development lifecycle. • Be able to develop threat models, attack trees, and embed security by design in product engineering effort. • Good understanding of web technologies, REST APIs, micro services, modern application development, and mobile apps. Good understanding of software architecture, dev-sec-ops, and network security. • Experience in browser security … generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. ...

integration architecture aligned with enterprise standardsLead end-to-end integration delivery across multiple systems and teamsDesign event-driven, API-first, cloud-native solutions (NATS, REST, async messaging)Create architecture artefacts (blueprints, APIs, ADRs)Act as integration authority across platforms and stakeholdersMentor teams on integration patterns, API governance, and best practicesDrive … tools to improve development efficiencyTech StackIntegration: Event-driven architecture, NATS (or Kafka/Pulsar), messaging patternsBackend: Java, Spring Boot, microservices, REST/gRPCCloud: AWS (EKS/ECS, SQS/SNS, API Gateway, Terraform)API: OpenAPI/AsyncAPI, versioning, governanceFrontend: React/TypeScript (working knowledge)Domain Expertise (any of these)Real ...

leading practices, coding standards, design patterns, security standards, data governance, and configuration over customization. Manage or oversee integrations between ServiceNow and other systems (via REST, SOAP, IntegrationHub, MID Servers, etc.), ensuring reliability, security, latency, error handling, monitoring. Establish/enforce architecture governance: review designs from development teams/partners, perform … architecture. Deep experience across multiple ServiceNow modules/workflows (for example, ITSM, ITOM, Discovery, ITAM, CSM, HRSD, SecOps, GRC, etc.). Strong integration experience: REST/SOAP APIs, IntegrationHub, MID Server, custom integrations. Understanding of data modeling, CMDB, metadata, core data, data governance, security. Preferred: Experience in defining and implementing ...

architecture and strategic technology initiatives. Role & Responsibilities: Own and govern the end-to-end integration landscape across enterprise systems. Design scalable integration patterns including REST APIs, event-driven messaging, SOAP, and file-based integrations. Define API standards, data contracts, and integration governance processes. Support the evolution of Azure Integration Services … Integration Architecture, Enterprise Architecture, or Senior Systems Analysis. Strong experience integrating enterprise platforms including Microsoft Dynamics 365, WMS, or TMS solutions. Expertise in REST APIs, GraphQL, Azure Service Bus, Logic Apps, Event Grid, and file-based integrations. Strong understanding of data modelling, JSON, XML, and OData. Experience creating architecture diagrams ...

underpinned by robust governance and safety guardrails. Engineering Excellence: Drive automation through Infrastructure-as-Code (Bicep, Terraform) and CI/CD pipelines, while maintaining REST APIs and identity-aware solution patterns. Collaborative Impact: Work autonomously to manage ambiguity, collaborating across infrastructure and application teams to enhance platform stability and cost … engineering, PaaS services, and Infrastructure-as-Code (Bicep, ARM, or Terraform. Software Engineering: Strong proficiency in Python (essential) and PowerShell for building automation frameworks, REST APIs, and identity flows (OAuth2). Identity & Security: Solid understanding of Entra ID, IAM patterns, and implementing security controls within a regulated environment. AI Integration ...

underpinned by robust governance and safety guardrails. Engineering Excellence: Drive automation through Infrastructure-as-Code (Bicep, Terraform) and CI/CD pipelines, while maintaining REST APIs and identity-aware solution patterns. Collaborative Impact: Work autonomously to manage ambiguity, collaborating across infrastructure and application teams to enhance platform stability and cost … engineering, PaaS services, and Infrastructure-as-Code (Bicep, ARM, or Terraform. Software Engineering: Strong proficiency in Python (essential) and PowerShell for building automation frameworks, REST APIs, and identity flows (OAuth2). Identity & Security: Solid understanding of Entra ID, IAM patterns, and implementing security controls within a regulated environment. AI Integration ...

build responsive web and mobile applications using OutSystems (Service Studio) Develop workflow orchestration, process automation, and data models Implement integrations with enterprise systems using REST/SOAP APIs and external services Develop reusable components, UI patterns, and application logic Support testing, deployment, and environment promotion activities Troubleshoot performance issues … years’ experience in OutSystems development (Reactive or Traditional Web/Mobile) Strong understanding of low-code application architecture and delivery lifecycle Experience with integrations (REST, SOAP, APIs, OAuth, SQL) Good understanding of relational databases (SQL Server or Oracle) Knowledge of JavaScript and CSS for UI customisation Understanding of application security ...

Azure Integration Services including Logic Apps, Azure Functions and API Management • Create event driven integration patterns and data flows between multiple systems • Work with REST and GraphQL APIs alongside modern authentication technologies including OAuth2, OpenID Connect and SAML • Ensure secure by design principles are embedded throughout all integration architecture • Produce … Looking For Commercial experience building API integrations and middleware solutions within complex enterprise environments • Strong knowledge of Azure Integration Services • Experience working with REST APIs, authentication protocols and API security best practices • Strong understanding of integration architecture, data mapping and event driven systems • Experience with Git or other version control ...

storage supporting current and future AI deployments Troubleshoot integration failures, data inconsistencies, and production issues Key Skills Python & SQL (production-grade pipeline development) REST APIs, webhooks, OAuth, event-driven architecture Orchestration tools: Airflow, Prefect, or Dagster Cloud platforms: AWS, GCP, or Azure Docker & Kubernetes Microsoft 365 & Microsoft Copilot Desirable Skills … data pipelines, and production infrastructure. Strong Python and SQL skills; experienced building robust, production-grade data pipelines from scratch. Deep familiarity with integration patterns: REST APIs, webhooks, OAuth, and event-driven architectures. Experience with orchestration tools (Airflow, Prefect, or Dagster) and transformation frameworks (dbt or similar). Comfortable across cloud ...

enable seamless data exchange between critical business systems. Role & Responsibilities: Design, develop, test, and support integrations across enterprise applications and platforms. Build and maintain REST APIs, event-driven integrations, messaging solutions, and file-based interfaces. Develop integrations using Azure Integration Services including Logic Apps, Service Bus, Event Grid … role. Strong hands-on experience developing integrations between enterprise platforms such as Microsoft Dynamics 365, WMS, TMS, or other business-critical systems. Experience with REST APIs, GraphQL, SOAP services, messaging technologies, and file-based integrations. Strong knowledge of Azure Integration Services including Service Bus, Logic Apps, Event Grid ...

seamless integrations between Salesforce Industries and external OSS/BSS systems, billing platforms, CRM, ERP, middleware, and order management systems. Define integration patterns using REST/SOAP APIs, Platform Events, middleware platforms, and microservices architecture. Lead architecture governance, code reviews, solution reviews, and best practice adoption. Support CI/… strategy. Salesforce Technical Skills Strong Salesforce platform knowledge including Apex, Lightning Web Components (LWC), Flows, and APIs. Experience integrating Salesforce with external systems using REST, SOAP, ETL, and middleware technologies. Knowledge of Salesforce security architecture, governor limits, and platform best practices. Experience with DevOps tools such as Git, Copado, Gearset ...

user prompt and completion for full auditability. Engineering Excellence: Drive automation through Infrastructure-as-Code (Bicep, Terraform) and CI/CD pipelines, while maintaining REST APIs and identity-aware solution patterns. Stakeholder Collaboration: Act as a credible technical bridge between business analysts and senior front-office teams (including electronic trading … patterns, rather than purely self-taught or personal interest projects. Software Engineering & Tech Stack: High proficiency in Python and PowerShell for building automation frameworks, REST APIs, and identity flows. Production exposure to the OpenAI SDK, GPT models, and Palantir Foundry is highly desirable. Identity & Regulated Security: Exceptional understanding of Entra ...

Lead migration of SharePoint 2016 on-premise solutions to SE and Online Build SPFx web parts, extensions, and integrations using TypeScript, JavaScript, React, and REST APIs Manage updates, patches, and service packs to ensure stability, security, and compliance Administer service and web applications, site collections, permissions, authentication, and governance Provide … SharePoint 2016 on-premise Strong expertise in SPFx development and modern front-end technologies (TypeScript, JavaScript, React, HTML5, CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity ...

through Terra — from upstream data suppliers (wearables, health apps, sensors) into our unified schema, and out to downstream developers and AI consumers via our REST API, Streaming API, and webhooks. This is not a maintenance role. You will build new data connectors, scale real-time streaming pipelines, harden our authentication … backend engineering.You have shipped systems that handle real traffic at scale. Not toy projects — real, battle-tested infrastructure. Deep API design experience.You've built REST APIs consumed by external developers. You understand versioning, rate limiting, pagination, error handling, and what it takes to make a developer love your API. Strong ...

ready solutions across Azure (primary), Oracle Cloud, and AWS. Develop automation, integrations, and bespoke engineering solutions using Python and PowerShell. Build and maintain REST APIs and identity-aware service patterns. Implement Infrastructure as Code using Bicep, ARM, and Terraform. Deliver BAU support and project work for cloud and AI workloads. … Strong hands-on Azure engineering experience. Excellent Python and PowerShell scripting skills. Proven experience with Infrastructure as Code (Bicep, ARM, Terraform). Experience developing REST APIs and service integrations. Strong understanding of Entra ID, OAuth2, token-based authentication, and identity-driven design. Practical experience with Azure OpenAI and OpenAI SDKs. ...

ready solutions across Azure (primary), Oracle Cloud, and AWS. Develop automation, integrations, and bespoke engineering solutions using Python and PowerShell. Build and maintain REST APIs and identity-aware service patterns. Implement Infrastructure as Code using Bicep, ARM, and Terraform. Deliver BAU support and project work for cloud and AI workloads. … Strong hands-on Azure engineering experience. Excellent Python and PowerShell scripting skills. Proven experience with Infrastructure as Code (Bicep, ARM, Terraform). Experience developing REST APIs and service integrations. Strong understanding of Entra ID, OAuth2, token-based authentication, and identity-driven design. Practical experience with Azure OpenAI and OpenAI SDKs. ...

experience of similar workflow/low-code tools - Basic programming skills - Java, JavaScript, Python, Groovy - Experience in BPMN development - Good understanding of API testing - REST and SOAP or knowledge of integration protocols (REST - JSON, SOAP - XML) - Experience working with relational databases (Oracle DB, PostgreSQL) - Deep consulting/client-facing experience ...

Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration. Key Responsibilities: Develop and maintain backend systems using Java 17/21 and the Spring MVC framework. Manage and execute Java EE library migrations … middleware upgrades. Ensure efficient database management and operations with Oracle 19C. Implement and maintain SOAP/REST integrations to support system interoperability. Collaborate with cross-functional teams to deliver high-quality software solutions. Qualifications & Skills: Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent experience. ...

Sales, Service, Experience Clouds). Make well-reasoned platform decisions, balancing declarative (Flows) and programmatic approaches for optimal performance. Design and build integrations using REST/SOAP APIs and middleware (MuleSoft/Jitterbit). Utilise front-end skills (HTML, CSS, JavaScript) to deliver seamless Lightning user experiences. Lead scoping, discovery …/middleware integrations. Experience spanning across the following ecosystem pillars: HTML, CSS, JavaScript, able to build and review high-quality Lightning front-end experiences. REST/SOAP, platform events, MuleSoft/ETL tools, data migration strategy. Opportunity/case management, forecasting, omni-channel routing, or CPQ concepts. Experience Cloud: Partner ...

week on site. Financial Services Lorien's leading banking client is looking for a skilled Automation Test Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate will have strong experience of working with CI/CD Environments, Rest … engineering community. Quality Engineering Responsibilities Implement and maintain TDD-aligned unit tests, component/integration tests, and consumer-driven contract tests (PACT) for REST APIs and Kafka events. Curate a minimal, meaningful end-to-end (E2E) test suite for critical user journeys and actively eliminate flaky tests. Plan and execute ...

week on site. Financial Services Lorien's leading banking client is looking for a skilled Automation Test Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate will have strong experience of working with CI/CD Environments, Rest … engineering community. Quality Engineering Responsibilities Implement and maintain TDD-aligned unit tests, component/integration tests, and consumer-driven contract tests (PACT) for REST APIs and Kafka events. Curate a minimal, meaningful end-to-end (E2E) test suite for critical user journeys and actively eliminate flaky tests. Plan and execute ...