26 to 50 of 55 REST Jobs in the City of London

IRM ServiceNow Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Management (CSM). Integration Design: Design and oversee the implementation of complex integrations between ServiceNow and other enterprise systems, leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best ...

Senior Product Manager - Trade compliance

Hiring Organisation
LexisNexis Risk Solutions
Location
City of London, London, United Kingdom
client/internal stakeholder requirements for product development. Work alongside with development team to deliver those requirements. Demonstrate ability to understand technical language i.e. REST, JSON, XML and accurately communicate to non-technical staff. Show analytical problem-solving, troubleshooting, sourcing technical solutions. Demonstrate excellent teamwork with an ability to handle ...

Implementation Engineer

Hiring Organisation
Pyramid Consulting, Inc
Location
City of London, London, United Kingdom
internal/external enterprise systems. Create reusable components, frameworks, and integration patterns. Analyze business requirements and translate them into technical solutions. Support development of REST/SOAP microservices for content access and workflow automation. Architecture & Design Define solution architecture, integration approaches, and best practices. Evaluate feasibility and impact … Services, DFC, REST. Implementation in enterprise environments. Experience building integrations with systems such as ERP, CRM, workflow engines. Familiarity with: Spring/Spring Boot REST APIs XML/JSON SQL & NoSQL databases Web application frameworks (JSP/Servlets, JSF, or modern front end is a plus) Tools & Platforms Version control ...

Full-Time Mobile App Developer (iOS & Android) — Remote (Europe / Asia)

Hiring Organisation
Astera
Location
City of London, London, United Kingdom
Equivalent cross-platform frameworks considered if well justified.) Proven experience implementing apps directly from Figma Strong mobile UI/UX implementation skills Experience with REST APIs, auth flows, and state management 👉 We’re comfortable with AI-assisted development tools (e.g. Base44, Copilot, etc.) where they improve delivery speed and quality. ...

Senior Backend Engineer Python

Hiring Organisation
Plexus Resource Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
backend systems that form the backbone of Web3-first products. Your work will directly shape how users interact with blockchains, smart contracts, DAOs and REST APIs enabling high-performance, reliable and secure services at scale. Role: Architect and build backend systems for Web3 products. Develop and maintain RESTful APIs using ...

Android Developer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
City of London, London, United Kingdom
Compose Multiplatform (CMP) Implement new features using Jetpack Compose and modern Android architecture Collaborate with designers, product managers, and backend engineers Integrate REST APIs and optimize app performance Maintain and improve CI/CD pipelines (Bitrise) Participate in code reviews, design discussions, and agile ceremonies 💡 What We’re Looking ...

Senior/Lead Node Engineer

Hiring Organisation
Tech Talent Network
Location
City of London, London, United Kingdom
engineers, lead code reviews, and shape engineering standards What We’re Looking For 🎯 5+ years backend development with Node.js/TypeScript 🎯 Strong async programming, REST/GraphQL, and PostgreSQL skills 🎯 AWS experience (ECS, Lambda, SQS, DynamoDB) 🎯 Startup experience and a passion for high-impact projects 🎯 Interest in clean energy ...

GenAI Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Skills and Testing: Familiarity with deep learning frameworks (e.g., TensorFlow, PyTorch), hands-on experience in deploying AI/ML solutions as a service/REST API on Cloud or Kubernetes, and proficiency in testing of developed AI components. Responsibilities also include data analysis/preprocessing for training and fine-tuning ...

ServiceNow Developer

Hiring Organisation
Computappoint
Location
City of London, London, United Kingdom
hands-on development experience Strong expertise in Domain Separated ITSM environments and managing complex integrations Strong development in JavaScript, Glide API, Script Includes, REST/SOAP APIs, and ServiceNow scripting Experience with CMDB, Asset Management, Service Portal development (HTML/CSS/AngularJS), and workflow automation Proven track record managing ...

Senior Exchange Connectivity Engineer | Crypto

Hiring Organisation
Selby Jennings
Location
City of London, London, United Kingdom
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 ...

Data Engineer - £350PD - Remote

Hiring Organisation
Tenth Revolution Group
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350/day
HTML, and DOCX Data Integration Familiarity with SAP data structures is beneficial Integration with PIM (Product Information Management) systems Design and consumption of REST APIs Programming & Querying Python (advanced): pandas, numpy, boto3, and data processing best practices SQL (advanced): complex queries, performance tuning, and query optimization Data Quality & Governance Data ...

Artificial Intelligence Engineer Intern(Applied GenAI)

Hiring Organisation
NetMind.AI
Location
City of London, London, United Kingdom
spin up a UI in Streamlit blindly. (Experience with Gradio/Chainlit is also fine). API Experience: You are familiar with calling REST APIs and handling JSON data. Problem Solver: You can take a vague requirement from a BD (e.g., "Analyze this report") and turn it into a technical ...

ServiceNow IRM Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Management (CSM). Integration Design: Design and oversee the implementation of complex integrations between ServiceNow and other enterprise systems, leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best ...

ServiceNow Developer (12 month FTC)

Hiring Organisation
Bell Integration
Location
City of London, London, United Kingdom
Includes, Business Rules) Workflow & Automation Development (Flow Designer, UI Policies, Scheduled Jobs, Inbound Actions) CMDB & Asset Management (Discovery, Service Mapping, Data Integrity) Integration Development (REST/SOAP APIs, MID Servers, Webhooks) Desirable: ServiceNow Certified App Developer ServiceNow Certified Implementation Specialist (CIS-ITSM, CIS-Discovery, CIS-Service Mapping, etc.) ITIL ...

Dynamics 365 Architect

Hiring Organisation
Norton Blake
Location
City of London, London, United Kingdom
solution architecture and technical design for Dynamics 365 CRM, including Customer Insights, Customer Service, and Sales Architect enterprise-grade integration patterns across Azure, Dataverse, REST APIs, ESB/middleware, and external systems Design and optimize Customer Insights ingestion pipelines, unification rules, segmentation models, and predictive analytics Define CRM data models ...

AWS Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350/day
optimise vector database solutions and embedding generation pipelines for semantic search. Implement document processing workflows (PDF parsing, OCR, metadata extraction). Integrate data from REST APIs , PIM systems, and potentially SAP. Ensure data quality, governance, and lineage tracking throughout the project. Required Skills ETL/ELT pipeline design and data ...

Dynamics 365CE Technical Lead - (Real-Time Marketing)

Hiring Organisation
Conspicuous
Location
City of London, London, United Kingdom
multi-branch customer journeys with advanced routing and exit logic Oversee custom channels (SMS, WhatsApp, Push) and delivery orchestration Lead complex integrations: Azure Functions, REST APIs, Service Bus/Kafka, Azure Communication Services Own Dataverse schema, plugin development, reusable components, and DevOps/ALM processes Ensure robust GDPR-compliant configurations ...

Staff Frontend Engineer (AI Lab | £170,000)

Hiring Organisation
Paradigm Talent
Location
City of London, London, United Kingdom
proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with HTTP, REST APIs, websockets, and secure frontend patterns. A creative streak — you think visually and love turning complexity into clarity. Nice-to-haves Experience with 3D or WebGL ...

Senior Product Manager

Hiring Organisation
Artemis Talent Group Ltd
Location
City of London, London, United Kingdom
following areas: Authentication & Security: MFA, identity management, access controls. KYC & Compliance: Customer onboarding flows, verification services, AML considerations. External APIs: Designing and consuming REST/graph-based APIs, API lifecycle management, integration best practices. Fiat Payments: Cards, bank transfers, settlement flows, reconciliation, PSPs. Crypto Payments: Wallets, on-chain/ ...

Implementation Manager (Fintech)

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
include: 5+ years’ experience in implementation, delivery or client onboarding within payments or fintech Strong knowledge of payment systems, APIs and integrations (Postman, JSON, REST, etc.) Proven project management skills with excellent organisation and communication A consultative mindset, able to translate complex technical concepts into business value Ability to juggle ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
modelling. Skilled in building end-to-end business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing ...

Senior Backend Engineer

Hiring Organisation
Reelables
Location
City of London, London, United Kingdom
data processing pipelines and application logic for massive streams of real-time location, temperature, and sensor data. Develop robust, well-documented, and performant APIs (REST/GraphQL/gRPC) that power both our customer-facing platform and third-party logistics integrations. Ensure the application layer can scale seamlessly and cost … deep, hands-on understanding of designing and implementing high-scale distributed systems. API Design: Proven track record designing, implementing, and optimizing production-grade APIs (REST/GraphQL) for both internal and external consumption. Data Systems: Experience with optimizing database queries and schema design for both relational (PostgreSQL, MySQL) and NoSQL ...

Software Engineer Full Stack Java - HealthTech

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
platform to a Java and Angular codebase (from Ruby and TypeScript). You'll focus on designing and developing scalable backend Java services and REST APIs and build responsive, as well as writing and optimising SQL database queries and occasional front end work, creating user friendly interfaces using Angular (v15+ … with relational databases and SQL query writing You have some front end experience with JavaScript, Angular or React You have a strong understanding of REST APIs and real-time systems You're comfortable working with legacy Ruby You have a strong knowledge of software engineering best practices and Agile development ...

Software Engineering Lead – PBSA Operations Platform (React, TypeScript)

Hiring Organisation
Viridis Real Estate Services
Location
City of London, London, United Kingdom
days from office and 2 days from home) Employment Type: Full-time Tech Stack: React, TypeScript, Node.js, SQL Server,CI/CD, GraphQL/REST About the Role We’re looking for a hands-on Software Engineering Lead to help shape the future of our in-house PBSA management platform. … fluent in React, TypeScript, HTML/CSS, and frontend performance optimization. Understand backend architecture well enough to collaborate effectively (Node.js, Azure SQL, ASP.NET Core, REST/GraphQL). Know how to design multi-tenant SaaS or distributed systems. Care deeply about clean code, DX, reusability, and practical UX. Can think ...

Full Stack Engineer

Hiring Organisation
UST
Location
City of London, London, United Kingdom
collaborate effectively across teams. Key Responsibilities: Backend Development Design and develop scalable services using C#/.NET Core (6+) . Implement and maintain REST APIs aligned with best practices. Work with Entity Framework Core for database access and ORM operations. Build microservices and event-driven components. Frontend Development Develop responsive … Required Skills & Experience 10+ years of professional experience in software development. Strong backend engineering with C#/.NET Core (6+). Solid experience developing REST APIs. Strong React development expertise. Proficiency with SQL Server, stored procedures, indexing, and performance tuning. Practical experience with Azure services: App Services, Functions, APIM, Service ...