1 to 25 of 84 REST Jobs in the City of London

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 Python Developer

Hiring Organisation
Tech 4
Location
City of London, London, United Kingdom
Employment Type
Permanent
codebases, using modern tooling to improve reliability and evolve architecture pragmatically. Strong system design fundamentals across scalability, performance, and distributed systems, including API design (REST, GraphQL). Hands-on experience with observability tooling (Datadog, Grafana, or similar) and a data-informed approach to system health and reliability. Solid ...

Solutions Developer (Business Intelligence)

Location
City Of London, England, United Kingdom
Dataverse, including environment administration. Microsoft 365 integration experience (SharePoint, Teams, Outlook) and Azure services. Power BI development, SQL Server/T-SQL, and REST API experience. Experience with ALM, source control (Azure DevOps or Git) and Agile delivery. Strong stakeholder management, communication and problem-solving skills. Desirable: Microsoft Fabric, Copilot ...

Senior C# Engineer Typescript, Lambda, API Gateway, SQS, SNS

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
some Typescript. What Youll Bring: Senior/Staff-level backend mastery in C# and .NET 9/10 , capable of architecting and leading distributed REST microservices at scale. Advanced AWS serverless expertise including Lambda, API Gateway , SQS, SNS, Step Functions & EventBridge . Serious API engineering capability : versioning, documentation, throttling, rate ...

Salesforce Platform Architect

Location
City Of London, England, United Kingdom
practices, with the ability to take a holistic view of the target state across technology, data and operating model. Strong integration architecture experience using REST/SOAP APIs, event-driven patterns and middleware such as MuleSoft to connect Salesforce with the wider technology estate. Proven experience defining DevOps ...

SC Cleared Senior Azure DevSec Engineer

Location
City Of London, England, United Kingdom
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. #J-18808-Ljbffr ...

Build & Deployment Engineer

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
City of London, London, Coleman Street, United Kingdom
Employment Type
Contract
understanding of .NET Framework and modern .NET build and deployment - this is essential Practical experience with Visual Studio, MSBuild, NuGet, IIS, Windows services and REST APIs Administration or engineering experience with at least two of: Octopus Deploy, TeamCity, GitHub Enterprise, JFrog Artifactory, JFrog Xray, Azure DevOps Server Strong PowerShell, plus ...

AI Solutions Architect

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Experience with Microsoft Copilot, Copilot Studio, AI governance, information architecture, and responsible AI practices. Strong technical background across PowerShell, PnP, Python, JavaScript, C#, JSON, REST APIs, GraphQL, SQL, and automation. Excellent client-facing communication, leadership, stakeholder management, and consulting skills. Desirable skills: Azure AI services, Azure landing zones, infrastructure ...

Java Developer Kafka API - Tech Consultancy

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
have experience with Spring Boot and microservices environments You have experience with Kafka (or similar messaging tools) You have a good knowledge of REST APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming, Data ...

AI Workplace Senior Engineer

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Purview, governance policies, cross-tenant migrations, automation, and multi-tenant environments. Technical skills across PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query/DAX, REST APIs, GraphQL, Dataverse, and SQL databases. Good understanding of AI governance, compliance, responsible AI, and Microsoft 365 Copilot. Excellent communication, leadership, consulting, and stakeholder management ...

Production Reliability Engineer

Hiring Organisation
Global Fintech
Location
City of London, Greater London, UK
Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. ...

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

Location
City Of London, England, 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 ...

Forward Deployed AI Engineer, CBS - Associate Director (Level 4) - UK Wide

Location
City Of London, England, United Kingdom
deterministic. Experienced with cloud solutions, including how they are run, costed and used. Experience integrating AI tools with enterprise systems through APIs, including Graph, REST, SQL, SharePoint and dedicated business systems. Experience working within enterprise guardrails, including AI risk assessment, information security review, data loss prevention, environments and licensing. Excellent ...

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, Work From Home
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 ...

Back End Developer

Hiring Organisation
rmg digital
Location
City of London, Greater London, UK
technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development ...

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 ...

Technical Power Platform Consultant

Hiring Organisation
Mphasis
Location
City of London, Greater London, UK
with Power BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft ...

Solutions Architect, Full-Stack Development, Enterprise AI, London, COR7660

Location
City Of London, England, United Kingdom
build working software solutions rapidly in response. You will design, prototype, and ship across a broad technology stack, including Rust, Python, TypeScript, SQL, REST APIs, and cloud infrastructure on AWS, GCP, or Azure, often delivering within days rather than months. The Company This is a chance to join an established ...

Azure Databricks Data Engineer

Location
City Of London, England, United Kingdom
/ELT pipelines and cloud-based data platforms. Strong understanding of Delta Lake, Unity Catalog, data governance principles, and medallion architecture. Experience integrating REST APIs, JSON data sources, Azure Data Factory, ADLS, Key Vault, and other Azure services. Hands-on experience with Git, CI/CD pipelines, deployment automation ...

Associate Software Developer (Web)

Location
City Of London, England, United Kingdom
Collaboration: Work closely with developers, testers, and product stakeholders to understand requirements, clarify details, and deliver practical solutions. Tech Stack Backend: Scala, Play Framework, REST/JSON and gRPC Frontend: React, TypeScript, AG-Grid Mobile: Current app in CodenameOne, target migration to React Native (or similar JS-based cross-platform ...

Senior Java Developer - Post-Trade Market Data (London)

Location
City Of London, England, United Kingdom
engineering team on a contract basis. You will design and develop market data and reference data feeds, building robust Java/SpringBoot microservices and REST APIs. The role focuses on auditing and leveraging market data, with exposure to CI/CD pipelines, TDD, and DevOps practices. This is an umbrella ...

Full Stack Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £630/day
inside IR35 - Umbrella only Required skills Azure experience including Functions, App Services, Key Vault, Monitor, and general cloud native design. C#, .NET 10, REST API development, and enterprise backend engineering. Frontend development with TypeScript, JavaScript or NHS Digital Design System components. Confident and experienced use of AI development agents ...

Power Platform Engineer

Location
City Of London, England, United Kingdom
. Software development experience, including proficiency in one or more of the following: Python, JavaScript, JSON, React and related scripting, .NET technologies (C#, ASP.NET), REST services, and PowerShell. Desirable: experience with Power Pages. EU Characteristics that can spell success for this role (if applicable). #J-18808-Ljbffr ...

Salesforce Developer

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
requirements. Required Skills & Experience 48 years of hands-on Salesforce development experience. Strong proficiency with: Lightning Web Components (LWC) Apex Classes, Triggers, Test Classes REST/SOAP APIs SOQL & SOSL Experience with Salesforce platform features including Flows, Service Cloud or Sales Cloud, and custom objects. Understanding of development best practices ...