1 to 25 of 34 REST Jobs in the City of London

trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis) Experience with Azure DevOps/CI/ ...

architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

Core code-first migrations and data modelling. Strong front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL or comparable relational databases. Experience with API and application security. Practical ...

engineering roles, with a track record of building solutions end-to-end Experience deploying applications in cloud environments, preferably Microsoft Azure Strong experience in REST API design and OpenAPI standards Extensive experience working with databases, data platforms, and analytical tools Ability to research, propose, and implement solutions with minimal supervision ...

enterprise-scale or modular applications. Deep knowledge of component-driven development, UI state management, layout systems, and SPA navigation. Strong experience working with REST APIs and .NET backends. Excellent command of C#, .NET Core 7, and asynchronous programming. Demonstrated ability to deliver pixel-perfect UIs from design specifications. Strong ...

This is a long-term, greenfield initiative with strong technical challenges and a modern engineering environment. Tech Stack Java (11+)/Spring Boot Microservices & REST APIs AWS (preferred) Kafka/Event-driven architecture SQL/Relational databases Docker/Kubernetes Nice to have: TypeScript, Camunda ...

critically evaluate AI-generated code for correctness, security, and financial accuracy Desirable, but no essential: Experience with Apache Airflow or similar workflow schedulers REST or GraphQL API design experience Knowledge of fixed income, FX, or derivatives products and associated P&L/risk methodologies ...

maintain HCL Commerce/WebSphere Commerce Suite components and extensions. Build and enhance backend services using Java, J2EE, Spring/Spring Boot, and REST APIs Ensure solutions meet scalability, performance, availability, and security standards Diagnose and resolve complex issues across application, integration, and infrastructure layer Perform root cause analysis ...

lead roles, with strong hands-on .NET/C# delivery. Demonstrable experience leading architecture decisions on production-grade systems, not just contributing to them. REST API design and integration experience at scale, including defining and governing integration standards. Microsoft SQL Server: schema design, query optimisation, and working knowledge of Always ...

React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience in CI/CD pipelines, GitOps ...

with the Senior Leadership you’ll define, scope, and plan improvements, new features, anticipating business needs before they happen. Maintain and develop our internal REST API that centralises business logic for the CMS, tools, asset management, data validation, and publishing of Karaoke content. Transform the CMS frontend to deliver ...

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 ...

doing Leading migration from SharePoint 2016 on-prem to SharePoint SE and SharePoint Online Rebuilding legacy web parts using SPFx (TypeScript, React, REST APIs, Microsoft Graph) Administering both on-prem and cloud environments patching, upgrades, governance, DR Configuring Business Connectivity Services and External Content Types Designing and maintaining the enterprise ...

hybrid connectivity Proven troubleshooting experience across networking, compute, identity, and automation layers Experience producing technical documentation, operational runbooks, and engineering standards Knowledge of REST APIs and cloud integrations Exposure to multi-cloud environments including Azure and Oracle Cloud preferred Experience with AWS services including EC2, S3, Lambda ...

experience Data Streams Identity Resolution Segmentation & Activations Unified Data Model Transformations & Insights Experience delivering end-to-end Salesforce Data Cloud implementations Strong integration experience (REST APIs, ETL, third-party platforms) Solid SQL and data architecture knowledge Experience integrating with platforms such as Snowflake, Databricks, AWS, BigQuery, or Tableau Salesforce Data ...

Helping shape bespoke software solutions across the business Taking ownership of projects from concept through to delivery Technical experience required: PHP Laravel SQL Python REST APIs The role is based in central London 1 day per week with a salary banding of £45k-£55k. If this sounds like the next ...

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 ...

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 ...

Cloud Connect Workday Web Services Proven experience designing and developing integrations using Workday Studio in enterprise environments Strong technical knowledge of: XML XSLT XPath REST/SOAP APIs Data transformation technologies Experience leading data remediation, migration, reconciliation, or data quality initiatives Strong understanding of Workday HCM data structures, business processes ...

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 ...

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. Strategic Advisory: Partner with stakeholders to align platform improvements ...

parts • Design and maintain enterprise SharePoint Online intranet architecture, navigation, branding, and content structures • Integrate SharePoint with internal systems and third-party platforms using REST APIs and Microsoft Graph • Administer SharePoint SE and SharePoint Online environments, including permissions, service applications, site collections, and governance • Perform system updates, patching, upgrades ...

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 ...