26 to 50 of 87 REST Jobs in the City of London

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 ...

Scala Engineer

Location
City Of London, England, United Kingdom
/CD practices. Experience working within teams that own and support their services in production. Essential Skills Scala Play Framework or similar MVC/REST API frameworks SQL AWS Continuous Integration/CI/CD Agile methodologies Due to the nature and urgency of this post, candidates holding ...

Forward Deployed AI Engineer

Location
City Of London, England, United Kingdom
Daily proficiency with AI coding tools such as Claude or GitHub Copilot. Hands‐on LLM integration experience. Working knowledge of MCP (Model Context Protocol), REST APIs, and microservices architecture. Cloud platform experience. Experience with agentic frameworks such as LangChain, LangGraph, AutoGen, or similar. Strong analytical skills — the ability to understand ...

Frontend Architect - React AI

Location
City Of London, England, 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 ...

Principal Software Developer (Web)

Location
City Of London, England, United Kingdom
team scales. Collaboration: Partner closely with the Desktop application development team to ensure feature compatibility and parity 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 framework ...

Enterprise AI Solutions Architect — Fast, On-Site Full-Stack

Location
City Of London, England, United Kingdom
embedded with enterprise customers, designing and delivering real solutions to genuinely complex problems. You will work across a broad stack (Python, TypeScript, Rust, SQL, REST APIs) and cloud platforms (AWS, GCP, Azure), with on-site client engagement and rapid delivery, backed by a base salary ...

Java Developer (Market Data)

Location
City Of London, England, United Kingdom
Market/Reference Batch Data Modern development best practises including TDD and DevOps, being familiar with modifying CI/CD pipelines to maximise efficiency. REST API development and integration. A background in either Investment Banking or Investment Management, ideally demonstrating an understanding of financial products and the trade lifecycle. This ...

Backend Java Developer – Data Fabric / Platform Engineering

Location
City Of London, England, United Kingdom
quality, observability Familiarity with Docker, Maven, Jenkins ⭐ Nice to Have Apache Calcite Starburst or federated query engines JVM performance tuning High-throughput service interfaces (REST/gRPC) Data governance or policy enforcement layers 👥 This Role Is Ideal If You’ve Worked On Data platforms, governance layers, query engines ...

Automation Developer

Location
City Of London, England, United Kingdom
production environments. Solid understanding of automation and CI/CD security best practices, including RBAC, secrets management, and pipeline hardening. Experience integrating systems using REST APIs and event‐driven architectures. Familiarity with Azure cloud services and cloud‐native automation approaches. #J-18808-Ljbffr ...

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 ...

Agentic AI Engineer - Rapid Prototyping

Hiring Organisation
PCR Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £500 per day + Inside IR35
/function calling and grounding LLMs against enterprise data Prompt and agent instruction design LLM evaluation, guardrails, observability and security Strong Python and SQL REST APIs, JSON, webhooks and enterprise integrations Querying and manipulating data for AI use cases Rapid prototyping and taking ideas from POC through to real-user ...

Senior Pre-Sales Consultant, Enterprise Payments

Location
City Of London, England, United Kingdom
modern enterprise and payments technologies including: Kubernetes and containerised platforms Databases, including Oracle and PostgreSQL Messaging and streaming technologies such as Kafka and MQ REST APIs and modern integration patterns Security and identity frameworks, including OpenID Connect and OAuth Cloud platforms such as: AWS Microsoft Azure Google Cloud Platform ...

IBM Netcool / Observability Technical Lead

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£780 - £830 per day
Change environment Confident communication and stakeholder management with both technical and non-technical audiences Desirable: IBM Tivoli Monitoring (ITM), Dynatrace, IBM Instana or OpenTelemetry, REST APIs/JSON/XML, cloud monitoring across AWS, Azure or GCP, container and Kubernetes monitoring, SRE practices, financial services or regulated environment experience ...

PAM Senior Engineer / Architect (Privileged Access Management)

Location
City Of London, England, United Kingdom
SAML, OAuth). Experience integrating PAM platforms with HR systems, ServiceNow, and other enterprise applications. Proficiency in scripting (PowerShell, JavaScript, BeanShell) and API integration (REST, SCIM, JDBC). Excellent communication and stakeholder management skills, with the ability to explain complex technical concepts to non‐technical audiences. Consulting mindset, with experience ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
full stack engineer whose main strength is backend development. You will take primary responsibility for Node.js and JavaScript services, PostgreSQL data models, REST APIs and a growing microservices estate, while contributing to React.js interfaces when a feature requires end-to-end ownership. The role sits close to live hotel deployments … production-ready documentation. Own PostgreSQL schema design, SQL queries, migrations, data integrity and performance for operational and time-sensitive product workloads. Develop well-structured REST APIs and event-driven integrations between Acacia applications, hotel systems, sensors, gateways and third-party platforms. Evolve our microservices architecture pragmatically, balancing service independence with ...

SAP Technical Architect

Location
City Of London, England, 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 ...

VP - Identity & Access Management

Location
City Of London, England, United Kingdom
RBAC/ABAC and entitlement management. Experience with ServiceNow, IAM automation, APIs and self-service workflows. Experience integrating IAM with AD/Entra, REST/SCIM, SAP, databases and Workday. Strong understanding of ITSM, SLAs/SLOs, audit controls and SOX. Experience with privileged access controls and complex directory/ ...

AI Solutions Engineer

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Up to 70k
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 ...

Hourly Paid Lecturer, Web - AD Education - London

Location
City Of London, England, United Kingdom
Proficiency across a range of web and software development technologies, including: HTML CSS (including frameworks like SCSS) JavaScript PHP Java Key Development Concepts & Tools : REST APIs SQL (for database management) MVC Architecture Mobile Development Search Engine Optimisation (SEO) Desirable: Python and AI Application If you are interested in applying ...

Senior Frontend Architect — Real-Time React & TypeScript

Location
City Of London, England, United Kingdom
development lifecycle, from design through testing and deployment, using HTML, CSS, JavaScript, React and TypeScript. Strong experience with real-time communication (WebSockets, SSE) and REST APIs, plus state management (Redux) and SPA architectures, is essential. #J-18808-Ljbffr ...

Senior Technical Business Analyst - CRM Database digital

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £75000/annum
home working hybrid Permanent role salary £60,000- 75,000 Requirements: experienced business analyst, understanding of databases and data structures/SQL queries/REST APIs The ideal candidate will combine BA techniques and technical ability to understand data and data transformation, with soft skills and the ability to quickly ...

Senior Java Architect for Payments, Cloud & Microservices

Location
City Of London, England, United Kingdom
border payments, settlement, reconciliation, and banking operations. You will partner with Lead Architect, guide offshore teams, and design microservices, event-driven solutions with Kafka, REST APIs, and secure scalable patterns, while driving governance, delivery progress, and AI-assisted #J-18808-Ljbffr ...

Oracle CX Architect R2L

Location
City Of London, England, United Kingdom
based integrations. Experience conducting requirements gathering, fit‐gap analysis, solution design, migration planning, testing support, and implementation governance. Strong integration experience using REST, SOAP, JSON, Web Services, Oracle APIs, and integration with CRM/ERP/back‐office systems. Ability to communicate complex solution concepts to business stakeholders, IT teams ...

Data Architect

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£800 - £860 per day
data platform services relevant to secure data engineering. Extensive experience with Apache NiFi architecture, flow design, governance and operational considerations. Experience designing integrations using REST APIs, SOAP services, file transfers, batch ingestion, legacy adapters and bespoke interfaces. Experience with structured, semi-structured and unstructured data formats including CSV, XML, JSON ...