1 to 25 of 48 REST Jobs in the City of London

API / Integration Developer (SC Cleared)

Location
City Of London, England, United Kingdom
software development principles. Strong problem-solving and troubleshooting skills. Ability to work effectively within a collaborative Agile environment. Desirable Experience with Python . REST/SOAP APIs. Microservices and cloud-native development. Azure integration services. CI/CD and DevOps practices. Experience integrating legacy and modern systems. Experience working within ...

Dynamics 365 CE Developer

Hiring Organisation
Amtis Professional Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£400 - 500 per day
HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST APIs and integration patterns Secure application development Unit testing frameworks SOLID principles and software design patterns Desirable Experience Healthcare or NHS environments Azure Health Data ...

API / Integration Developer (SC Cleared)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Inside IR35
software development principles. Strong problem-solving and troubleshooting skills. Ability to work effectively within a collaborative Agile environment. Desirable Experience with Python . REST/SOAP APIs. Microservices and cloud-native development. Azure integration services. CI/CD and DevOps practices. Experience integrating legacy and modern systems. Experience working within ...

Senior Java Architect - Payments

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
knowledge of microservices architecture and distributed systems Experience designing event-driven solutions using Kafka or similar messaging technologies Strong understanding of API-first architecture, REST services, and enterprise integration patterns Experience working with cloud-native platforms and containerised environments Exposure to AWS, Azure, Kubernetes, Docker, and CI/CD pipelines ...

Senior AI Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
requires onsite attendance in Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker, Kubernetes (AKS) Azure DevOps, Git repositories … applications using Microsoft Azure Strong front-end development experience with React, Angular, JavaScript, and TypeScript Strong back-end development experience with ASP.NET Core, Python, REST APIs, and microservices architecture Experience building and integrating enterprise APIs and third-party services Experience working with both relational and non-relational databases Experience integrating ...

SC Cleared Senior Azure DevSec Engineer

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - 750 per day + Inside IR35
security within regulated or secure environments. Azure networking, DNS, certificates and connectivity management. Production-grade CI/CD implementation. Python development and REST API integration. Git-based development and infrastructure management. Logging, monitoring, secrets management and operational support. Strong documentation and stakeholder communication skills. Apply now to speak with VIQU ...

Senior SharePoint Developer

Hiring Organisation
Eutopia Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
high-performing SharePoint solutions Optimising platform cost, performance, and usability Designing and developing solutions using SPFx, React, TypeScript, JavaScript, Microsoft Graph APIs, and REST APIs Designing and maintaining enterprise on-premises and cloud SharePoint platforms Administering SharePoint SE (on-prem) and SharePoint Online tenants Skills and experience required: Extensive hands ...

Senior C# Engineer .NET 9/10, AWS Lambda, SQS, SNS Outside IR35

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
What Youll Bring: Senior/Staff-level backend mastery in C# and .NET 9/10 , with the ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless engineering: Lambda-first mindset, hands-on experience with API Gateway, SQS, Step Functions, EventBridge and IAM. Deep ...

URGENT HIRE | Full Stack Engineer – Python / AWS / Azure / Data |

Hiring Organisation
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Location
City of London, London, United Kingdom
with data pipelines, ETL/ELT processes, and data orchestration tools. Experience working with production systems . Experience developing backend services and/or REST APIs . Experience with databases and data-intensive applications. Familiarity with Git and CI/CD . Commercial exposure to AWS and/or Azure ...

Senior Data Privacy & BigID Consultant

Location
City Of London, England, United Kingdom
Purview) Identity & Access Management basics (IAM, RBAC) Encryption, tokenization, and data masking techniques Scripting & Automation Python/Bash for automation and data profiling scripts REST API integration and JSON/XML data handling QUALIFICATIONS Experience 7+ years in data governance, privacy, or information security 4+ years in a client-facing ...

Senior Full Stack Lead Engineer ReactJS, TypeScript

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £130000/annum
Engineering Enablement Required Experience Significant hands-on experience in software engineering within large enterprise environments. Strong expertise in: ReactJS, TypeScript JavaScript C#/.NET REST APIs Distributed application development. Strong understanding of modern frontend engineering practices and component-based architectures. Deep experience working within a highly regulated financial services institution ...

Senior SharePoint Developer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
modernization initiatives moving classic SharePoint experiences to modern SharePoint. * Design and develop enterprise-scale solutions using SPFx, React, TypeScript, JavaScript, Microsoft Graph APIs, and REST APIs. * Design and maintain enterprise on-premise and cloud SharePoint platforms, including site architecture, navigation, branding, and content structure. * Administer SharePoint SE (on-prem ...

Senior Machine Learning Engineer

Location
City Of London, England, United Kingdom
Language Models (SLMs). Hybrid Deployment: Manage deployment topologies across multi-cloud environments and bare-metal local hardware. API Development: Create high-performance, asynchronous REST and WebSocket APIs using FastAPI to serve real-time conversational agents. MLOps & Infrastructure CI/CD Automation: Design automated machine learning pipelines for model testing ...

Principal Software Engineer

Hiring Organisation
Lorien
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
portfolios. 50% hands on coding, 50% managerial Key Skills & Experience Strong Java development background within enterprise-scale environments Expertise in Spring, Hibernate, JPA and REST APIs Experience working across both monolithic and microservices architectures Advanced SQL and PostgreSQL skills Distributed systems design, performance optimisation and scalability Technical leadership, architecture design ...

Full-stack Software Engineer

Location
City Of London, England, United Kingdom
position: Build and maintain customer-facing features across the entire stack using Java/Spring Boot and React Design, develop, and maintain REST and GraphQL APIs to ensure seamless data flow Develop efficient data models and queries using MySQL and DynamoDB Write clean, well-tested, and maintainable code, actively participating ...

Senior Architect, Europe

Location
City Of London, England, United Kingdom
Thorough knowledge of experience in multiple technologies and architectures including: J2EE. Web Application Development (User & B2B). Service‐Oriented Architecture & Web Services (SOAP, XML, REST). Application Frameworks (Spring, Struts, Hibernate, MVC, etc.). Middleware Technologies (Websphere, JBoss, Datapower). Relational Database Design (DB2/400, MS SQL Server). ...

Senior Bureau Messaging Integration Architect - Insurance

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
bordereaux processes. Exposure to delegated authority and Lloyd's ecosystem platforms. Hands-on knowledge of Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP, XML, JSON, and managed file transfer technologies. Understanding of cloud and hybrid integration architecture. TOGAF or similar architecture framework knowledge desirable. Integration Architecture ...

Senior Bureau Messaging Integration Architect

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
delegated authority operations and the Lloyd's ecosystem. Hands-on experience with technologies such as Azure Integration Services, MuleSoft, Boomi, IBM MQ, Kafka, REST/SOAP APIs, XML, JSON, and managed file transfer solutions. Experience designing cloud-native and hybrid integration architectures. Knowledge of TOGAF or a comparable enterprise architecture ...

Senior ServiceNow Developer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
solutions. Strong experience with Flow Designer, Business Rules, Client Scripts, UI Policies, UI Actions, access controls, notifications, forms and catalog items. Integration experience with REST, SOAP, APIs, IntegrationHub, MID Server and Import Sets. Working knowledge of JavaScript, Glide APIs, HTML, CSS and XML. Experience developing custom scoped applications and workflows ...

Scala Developer - Remote Contract

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
Strong understanding of functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query ...

Application Engineer

Hiring Organisation
Comtecs
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
include systems such as Aderant (Expert Sierra), Elite3E, PracticeEvolve, ProClaim. Solid understanding of core integration techniques utilising a range of the following skills SQL, REST APIs, Service Bus and C# (where applicable) Excellent vendor, stakeholder engagement, communication, training and documentation Experience of aspects of product ownership including roadmap development ...

Frontend Architect - React

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page ...

Senior Software Engineer – AI Systems & Full-Stack Ownership

Location
City Of London, England, United Kingdom
generation of AI-powered products. The role spans backend, API design, MCP integration and frontend development with React and TypeScript. You will design scalable REST/GraphQL APIs, implement agent-to-agent connectivity, and build production-grade frontend apps while collaborating with UX and product teams. #J-18808-Ljbffr ...

SAP Technical Architect

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
database architecture, optimization, backup/restore strategies, and security. Expertise in SAP integration technologies: SAP BTP Integration Suite (CPI) SAP PI/PO APIs (REST, SOAP, OData) IDocs, RFCs, Event‐driven architectures Ability to design end‐to‐end integration patterns across SAP and non‐SAP systems (CRM, eCommerce ...

AI Solutions Engineer

Hiring Organisation
Hays
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
capability with genuine visibility across the organisation. You'll be working with technologies including Copilot Studio, Microsoft 365, Dynamics 365 and Azure, alongside REST APIs, JSON and scripting languages such as Python, PowerShell or JavaScript. There is also a significant applied AI element, including building and refining AI agents, working ...