26 to 47 of 47 REST Jobs in the City of London

Databricks and Azure (ADLS Gen2, ADF or equivalent). * Proven ability to implement Medallion architecture or equivalent layered data modelling patterns. * Experience with REST API ingestion and integration of business systems (ERP, finance tools). * Experience in a contractor or project-based delivery model preferred. * Exposure to OT/SCADA ...

Guidewire Data Model • Customization & Integration: o Sound knowledge of Guidewire xCenters (version 10.x & SaaS) customization and integration (Intra and Inter system integration) using REST and SOAP APIs • Technical Skills: o Experience with batch processes, Guidewire Messaging framework, and OOTB plugins o Familiarity with Infra concepts and deployment architecture ...

building and scaling distributed systems or cloud-native platforms (AWS preferred) Experience delivering end-to-end solutions in production environments Technical Skills API development ( REST/GraphQL ) and third-party integrations Strong knowledge of databases (SQL & NoSQL) Experience with event-driven systems/messaging (Kafka, RabbitMQ, SQS, etc.) Solid understanding ...

integration engineering experience Proven delivery of complex integrations end-to-end Expertise in APIs, microservices, and event-driven architecture Solid understanding of integration patterns (REST, messaging, orchestration) Experience with Azure integration stack (APIM, Service Bus, Event Grid, Functions) Strong coding skills in C# and/or Python Experience integrating legacy ...

startup or scale-up environment Strong in TypeScript and/or Python. C# is a bonus, not a blocker Hands-on with AWS, REST APIs, and PostgreSQL Experience building with LLMs: tool calling, RAG, embeddings, agentic workflows The kind of person who talks to users, understands the problem deeply ...

heart of their trading infrastructure, focusing on ultra-reliable, low-latency integrations with major crypto exchanges. Key Responsibilities Design and implement exchange connectivity modules (REST, WebSocket, FIX, proprietary APIs). Optimize order entry, market data ingestion, and account management for performance and reliability. Contribute to a fault-tolerant, scalable connectivity ...

authentication/SSO standards (OIDC, SAML, OAuth, Kerberos, LDAP). - Experience with RBAC, entitlement management, and automated provisioning/deprovisioning. - Skilled in PowerShell, REST APIs, and identity automation. - Familiar with micro-segmentation, NDR, and network-IAM interplay. - Experience with infrastructure hardening and monitoring across hybrid environments. - Knowledge of Azure Policy ...

authentication/SSO standards (OIDC, SAML, OAuth, Kerberos, LDAP). - Experience with RBAC, entitlement management, and automated provisioning/deprovisioning. - Skilled in PowerShell, REST APIs, and identity automation. - Familiar with micro-segmentation, NDR, and network-IAM interplay. - Experience with infrastructure hardening and monitoring across hybrid environments. - Knowledge of Azure Policy ...

Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) - Fully Remote (Two meet ups per year) - Open to applicants in the UK only - Award Winning Legal Platform - £65,000 - £75,000 G.R.E. Recruitment is delighted to partner with an award-winning legal technology provider who are continuing ...

design for TSM modules (service lifecycle management, order management, network inventory). Implementation & Integration: Architect complex integrations with BSS/OSS systems, using REST, SOAP, and IntegrationHub. Domain Expertise: Lead implementation of Telecom Network Inventory, Product Catalog, and Service Order Management. Governance & Mentorship: Guide developers, perform code reviews, and establish ...

design for TSM modules (service lifecycle management, order management, network inventory). Implementation & Integration: Architect complex integrations with BSS/OSS systems, using REST, SOAP, and IntegrationHub. Domain Expertise: Lead implementation of Telecom Network Inventory, Product Catalog, and Service Order Management. Strategic Advisory: Partner with stakeholders to align platform improvements ...

experience with LLMs, agent frameworks, and agentic reasoning patterns. Practical understanding of Model Context Protocol (MCP), including tool and server design patterns. Experience building REST APIs, ideally using FastAPI. Familiarity with prompt engineering and retrieval-augmented generation (RAG) architectures. Experience with containerisation and Kubernetes-based deployment environments. Ability to operate ...

background within Financial Services, Investment Management, or similar regulated environments Proven experience delivering modern application and reporting solutions using Microsoft Azure Strong knowledge of REST APIs, App Services, Power BI, Power Platform, and data integration Experience with low-code and pro-code development across enterprise systems Understanding of AI integrations … paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes (AKS), Azure App Services ...

onboarding into a repeatable process. What you'll do Phase 1 (0-3 months): Lead the greenfield implementation of all core platforms. Build foundational REST API integrations and webhook-driven automations. Define the cross-platform data model - canonical field mapping, entity relationships and data quality standards across … HaloPSA, HubSpot, Sage Intacct, NinjaOne RMM, 3CX, Microsoft 365/Graph API * Strong JavaScript and/or Python for integration scripting and automation * REST API design - webhooks, OAuth, JSON transformation, event-driven architecture * Cross-platform data mapping across multiple SaaS systems * Technical documentation to a professional standard * Comfortable operating autonomously ...

agent tools, and custom modules that support reasoning, summarization, and multi-step task execution Integrate agents with enterprise systems (e.g., Workday, SAP, Salesforce) via REST APIs, SDKs, or message queues Build and manage agent lifecycle components , including initialization, memory/state handling, and fallback logic Implement and consume vector store … experience in developing and deploying production-grade AI/ML or automation solutions Strong proficiency in Python , with hands-on experience using FastAPI , REST APIs, and background task orchestration Deep familiarity with agentic frameworks such as LangChain , LangGraph , CrewAI , ReAct , or similar Understanding of LLM orchestration , including prompt design, tool ...

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 ...

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 ...

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 ...

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 ...

Azure (primary), Oracle Cloud, and AWS (as onboarded). Develop bespoke automation, integration, and AI‐driven components to support business requirements. Build and maintain REST APIs, integration services, and identity-aware solution patterns. Deliver operational (BAU) and project support for cloud and AI workloads. Collaborate across teams to enhance platform … PowerShell for automation, integration, and AI workflows. Real‐world experience implementing and supporting cloud platforms and identity solutions (Azure, Oracle, EntraID). Experience developing REST APIs, integrating services, and implementing identity flows (OAuth2, tokens). Experience with Azure OpenAI, OpenAI SDK/models, and applying AI services to real-world ...

opportunity to influence architectural decisions at a critical stage of growth. The Backend Engineer (Full Stack, backend-leaning) will take ownership of complex backend REST API Services and deliver scalable systems using TypeScript and Node.js . You will closely with Product, Engineering and Operations, working alongside the Lead Engineer … delivery standards and elevate system reliability. The Senior Backend Engineer (Full Stack, backend-leaning) will... • Design and maintain scalable Node.js/TypeScript services and REST APIs • Own backend initiatives end-to-end, from architecture to rollout • Strengthen testing strategy across unit and integration layers • Improve data and integration workflows with ...

Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) - Fully Remote* (Two meet ups per year) - Open to applicants in the UK only - Award Winning Legal Platform - £65,000 - £75,000 G.R.E. Recruitment is delighted to partner with an award-winning legal technology provider who are continuing … working from Eastern Europe. For this role I am looking for a Ruby Developer with: Minimum 6 years Ruby development experience Experience of developing REST API's Someone who is happy to work across the full stack and take on some ReactJS work on the Front-end, they will consider ...