51 to 62 of 62 API Design Jobs in England

Python Engineer

Hiring Organisation
Adecco
Location
North West, United Kingdom
Employment Type
Contract
expertise in Python development. AI Knowledge : Familiarity with LLMs and Generative AI solutions, along with frameworks like LangChain or LangGraph. Technical Skills : Proficiency in API design and integration, SQL, data processing, Git, and CI/CD practises. Production Focus : A solid engineering mindset with the capability to extend ...

S/4HANA - Coupa Integration Architect

Hiring Organisation
CBSbutler Holdings Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £558 per day + inside ir35
between Coupa and SAP S/4HANA. This is an opportunity to work on a high-profile global programme, owning integration architecture from initial design through to deployment, cutover and Hypercare. What you'll be doing: Designing and delivering Coupa SAP S/4HANA integrations across complex enterprise landscapes … Leading integration architecture, solution design and technical delivery Building and managing APIs including REST/JSON, OData, IDocs and BAPIs Supporting procurement process integrations covering: Supplier and Business Partner data Purchase Orders Goods Receipts Service Entry Sheets Invoices and payment status updates Master data synchronisation Working with integration platforms ...

Fullstack JavaScript Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
New Works, Telford, Shropshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Essential Experience: React Next.js Strong commercial experience developing scalable backend systems using TypeScript and Node.js. Deep understanding of software architecture, API design, integration patterns and modern engineering best practices. Experience working with high-volume data platforms, data integrations and large-scale data migrations. Exposure to Databricks integrations would ...

Business Systems Architect

Hiring Organisation
Proactive Appointments
Location
Truro, Cornwall, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum
business but actively drives growth, efficiency and competitive advantage. The Opportunity This is a strategic, hands-on architecture role where you'll lead the design, integration and optimisation of critical business systems while influencing the organisation's long-term technology roadmap. You'll take ownership of enterprise applications, system … What You'll Be Doing Enterprise Systems & Architecture Lead the architecture, administration and continual improvement of the company's ERP platform (IFS Cloud). Design and deliver scalable system architecture that supports future business growth. Develop and maintain secure API integrations between internal systems, legacy applications and third ...

Agentic AI Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
Burgess Hill, West Sussex, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum Market Rate/ Negotiable
Python Engineer to build next-generation autonomous AI agents for a major global financial services hub. You will move beyond basic chatbots to design multi-step reasoning workflows and enterprise-grade Python APIs that let AI interact directly with real-world software tools. Key Responsibilities Agentic Orchestration: Build stateful … workflows using LangGraph or LangChain . API & Backend Engineering: Write robust Python backends enabling LLMs to execute Function Calling and tool-use. Context & Memory: Optimize prompt engineering, context windows, and retrieval systems (RAG). What You Need Strong Python software development experience. Hands-on experience with GenAI frameworks ( LangGraph ...

Applied AI Engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £190,000 per annum
concept and production-grade AI solutions. Architect, develop and deploy AI-native applications leveraging Large Language Models (LLMs), agentic systems and multimodal AI technologies. Design, build and orchestrate intelligent agent workflows using the Gemini Enterprise Agent Platform, Agent Development Kit (ADK) and Agent2Agent (A2A) protocol. Develop and implement Retrieval … using modern front-end technologies such as React, Next.js and Svelte. Build robust backend services, APIs and orchestration frameworks to support AI-powered applications. Design and manage data architectures across SQL, NoSQL and vector database environments. Collaborate with business stakeholders to identify, prioritise and deliver AI use cases that ...

iOS Software Engineer

Hiring Organisation
Burton Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
performance, reliability, and user trust are critical. Build and maintain iOS applications using Swift and SwiftUI. Integrate AI-powered features through backend APIs. Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks. Optimize performance, memory usage, and battery efficiency. Capture user signals and feedback … support AI evaluation and iteration. Collaborate closely with backend and ML engineers on API design and system behavior. Maintain high App Store quality, stability, and production reliability. Requirements: 3+ years of iOS development experience using Swift. Hands-on experience integrating AI-powered features into mobile apps. Strong understanding ...

Software Developer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£559 - £600 per day
Basel III/IV, CCAR, counterparty limit monitoring, or live exposure calculations. Core Tech Stack: Expert-level C#/.NET (.NET Core), scalable API design, and solid OOP/architectural principles. Data & High Performance: Strong SQL skills, experience handling large data volumes, and working with event-driven/ ...

Product Director – EMEA

Hiring Organisation
Glow Services Corp
Location
City of London, London, United Kingdom
frame, challenge upward, and drive decisions across teams AI fluency. Active use of AI for spec writing, prototyping, and analys Familiarity with API design, microservices, and SaaS platforms ...

Cloud Engineer

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
technology organisation delivering mission-critical systems that support national security and help protect the UK. Working as part of empowered DevOps teams, you'll design, develop, deploy and maintain cloud-based applications and services, collaborating with engineers and end users to solve complex technical challenges. The Role … opportunity to work with cutting-edge cloud technologies, contribute to innovative solutions and continue developing your skills within a supportive engineering community. Key Responsibilities •Design, develop and maintain secure cloud solutions using AWS. •Build and support applications and services across AWS environments. •Work within agile DevOps teams to deliver ...

Java & React Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Market Rate/ Negotiable
Role: We are seeking an experienced Full-Stack Engineer (5-7 years) to join a leading global financial institution in London. You will design, build, and maintain high-performance, cloud-native applications supporting critical financial operations. Key Responsibilities: Design and deliver end-to-end applications using Java (Spring … proficiency in Java, Spring Boot, and ReactJS . Hands-on experience with AWS, Kubernetes, and Kafka . Strong grasp of multithreading, microservices architecture, and API design. Financial services, Investment Banking, or Risk domain experience is highly advantageous. Ability to work from the London office 3 days per week . ...

Solution Architect - Integration - Salesforce

Hiring Organisation
SR2
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £750/day
drive architectural decisions will be essential. Responsibilities Define and maintain the end-to-end solution architecture across the rewards portal and wider Salesforce ecosystem. Design integration patterns across Salesforce, customer identity, APIs, mobile applications and enterprise platforms. Translate business and technical requirements into scalable, resilient and maintainable solution designs. … Define the architecture for SSO, customer identity integration and associated authentication journeys. Review and assure API designs, data flows, integration components and system dependencies. Support the design of mobile and in-app webview customer experiences. Produce architecture artefacts, solution options, design decisions and technical roadmaps. Coordinate suppliers ...