1 to 25 of 308 Permanent API Integration Jobs in London

React Js Developer

Location
Greater London, England, United Kingdom
Build performant, responsive React applications with strong UI delivery, API integration, and front-end engineering discipline. 2-3 Years Remote Full-time Integrate REST APIs and manage application state using tools such as Redux or Context API while writing clean, reusable code. Collaborate with designers and backend … developers to convert UI designs into production-ready interfaces and improve front-end performance. Primary skills and requirements Experience with Redux or Context API, REST API integration, component-based architecture, and front-end optimization. Experience with Git, Figma-to-code delivery, and pixel-perfect mobile-first implementation. ...

Forward Deployed AI Engineer

Location
Greater London, England, United Kingdom
through to build, testing, deployment, monitoring and handover. This is a senior, hands‐on delivery role for someone who can work independently across architecture, integration, DevOps, MLOps, AIOps, data engineering and governance. You will make technical decisions, solve complex integration challenges and ensure AI solutions are reliable, scalable … deploy AI-enabled workflows using Azure AI Foundry, Microsoft Copilot Studio, Microsoft Fabric and SAP Joule. This includes agent orchestration, automation triggers, prompt integration, exception handling and reusable delivery patterns. API integration and service connectivity: Connect AI workflows to enterprise systems through REST APIs, event streams ...

Front End (UI) Software Engineer (Fullstack)

Location
Greater London, England, United Kingdom
lead engineer will set architectural standards for enterprise-grade web applications, drive UI component libraries and design system adherence, establish best practices for API integration and backend services, and mentor development teams across the software delivery lifecycle.# Key Responsibilities## Technical Leadership & Core Applications Development* **Architectural Alignment & System Design … responsive, accessible (WCAG 2.1 AA), and performant web applications using modern frameworks (e.g., React, TypeScript, Next.js/Angular) and enterprise design systems.* **Fullstack Integration & API Design:** Lead end-to-end integration by designing, consuming, and optimizing RESTful APIs, GraphQL endpoints, Backend-for-Frontend (BFF) layers, and microservices ...

Senior Full Stack Engineer - Vialto Rewards -

Hiring Organisation
Vialto Partners
Location
London, UK
Employment Type
Full-time
PaaS services, secure patterns, and operational best practices. Contribute to system architecture and technical design for multi-country payroll, compensation, and equity domains, including integration patterns using REST, file-based feeds, and event-driven approaches. Own production readiness for your work including logging, monitoring and alerting, reconciliation tooling, incident … with Next.js and/or React (TypeScript, state management, performance optimization). Strong backend development experience in C# and .NET (ASP.NET, WebAPI, MVC) including API design and service patterns for high-integrity calculation and data-processing systems. Proven experience with Microsoft Azure designing and building cloud solutions using PaaS ...

Solution Architect

Location
Greater London, England, United Kingdom
/Sub. Proficiency in SQL, including complex transformations, query tuning, data validation, and analytical processing. Proficiency in Java or Python for data pipelines, automation, API integration, and production support. Good understanding of ETL/ELT, data warehousing, data lakes, dimensional modelling, batch processing, and stream processing. Experience with …/Sub. Proficiency in SQL, including complex transformations, query tuning, data validation, and analytical processing. Proficiency in Java or Python for data pipelines, automation, API integration, and production support. Good understanding of ETL/ELT, data warehousing, data lakes, dimensional modelling, batch processing, and stream processing. Experience with ...

Principal Network Engineer

Location
Greater London, England, United Kingdom
proficiency in Ansible, Terraform, and scripting languages such as Python Experience with CI/CD pipelines such as GitLab CI and Jenkins Experience with API integration for network management and monitoring Proven ability to lead, influence, and drive technical change across engineering teams Strong problem-solving and decision … Demonstrates extensive expertise in designing, deploying, and troubleshooting large-scale enterprise-grade networks, with a strong focus on network automation, security best practices, and integration with IT service management. Proven ability to lead technical change and mentor engineering teams while collaborating on architectural strategies. Highest-signal resume keywords Network ...

Tencent Cloud – AI & LLM Solution Architect (Europe)

Location
City Of London, England, United Kingdom
into product enhancements while accelerating enterprise AI adoption. TokenHub provides enterprises and developers with a unified gateway to leading foundation models through a single API, together with enterprise-grade model management, inference, deployment, monitoring, and AI application capabilities. Product Link: products/tokenhub from_qcintl=topnav Responsibilities Partner with … utilizing Large Language Models (LLMs), Prompt Engineering, Retrieval-Augmented Generation (RAG), AI Agents, Model Context Protocol (MCP), model fine-tuning, inference optimization, vector databases, API integration, AI workflow orchestration, and cloud-native AI services. Collaborate closely with Product, Engineering, and Research teams to translate customer requirements into platform ...

Product Owner

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
London, United Kingdom
based B2B SaaS company looking for 2 experienced product professionals to join their team. The focus is on owning and improving product processes, from API integration to documentation and lifecycle management. Role Highlights: - Document and manage the product lifecycle, including APIs. - Collaborate with QA & development teams to gather … feedback. - Write clear technical documentation (API docs, SQL/database queries). - Bring prior experience and best practices to hit the ground running. Ideal Candidate: - 1–3+ years in product development/product owner roles. - Comfortable with API integration, documentation, SQL, and databases. - Curious, proactive, and able ...

Azure Databricks Engineer

Location
Greater London, England, United Kingdom
build ingestion and transformation pipelines* Full and incremental data loading* CDC (Change Data Capture) implementation* Data quality controls, schema evolution, reconciliation, and error handling**Integration Development*** REST API integration experience* Integration with databases, SaaS applications, cloud storage, and enterprise systems* Secure authentication and credential management**Azure … incident management, troubleshooting, and performance tuning* Operational governance and platform standards implementation**Discovery Zone & Migration Support*** Experience enabling application deployment within Databricks* BI tooling integration and scheduling* Support for POSIT/RStudio migration activities**Collaboration*** Working with Data Engineers, Data Scientists, and Platform Teams* Technical documentation and knowledge transfer ...

International Private Bank AI Governance - Executive Director

Location
Greater London, England, United Kingdom
utilizing advanced techniques for explainability and bias mitigation Drive strategic initiatives to integrate AI governance tools and automate compliance processes, leveraging cloud infrastructure and API integration Collaborate with senior leadership to align AI governance strategies with business objectives, influencing decision-making and operational plans Respond to regulatory inquiries … explainability and bias mitigation Showcase advanced experience in deploying and managing AI/ML models on cloud platforms, with a strong understanding of API integration and automation processes Preferred qualifications, capabilities, and skills Familiarity with AI governance frameworks (NIST AI RMF, ISO/IEC 23894) and common control ...

International Private Bank AI Governance - Executive Director

Location
Greater London, England, United Kingdom
utilizing advanced techniques for explainability and bias mitigation Drive strategic initiatives to integrate AI governance tools and automate compliance processes, leveraging cloud infrastructure and API integration Collaborate with senior leadership to align AI governance strategies with business objectives, influencing decision-making and operational plans Respond to regulatory inquiries … explainability and bias mitigation Showcase advanced experience in deploying and managing AI/ML models on cloud platforms, with a strong understanding of API integration and automation processes Preferred qualifications, capabilities, and skills Familiarity with AI governance frameworks (NIST AI RMF, ISO/IEC 23894) and common control ...

Senior UI Architect , Vice President

Location
Greater London, England, United Kingdom
best practices. Review solution designs and provide architectural governance across programmes and projects. Lead technical decision-making for front-end frameworks, state management, API integration patterns, and deployment strategies. Digital Experience Strategy Drive the adoption of modern web technologies and composable architecture patterns. Define strategies for responsive, accessible … engineering practices for UI applications. Lead performance optimisation initiatives, including Core Web Vitals improvements. Ensure maintainability, scalability, and resilience of front-end solutions. Enterprise Integration Define integration patterns between UI channels and backend services. Collaborate with API, platform, cloud, and security architects. Establish authentication and authorisation standards ...

Workday Integration Specialist

Location
Greater London, England, United Kingdom
prevention is the norm, and where your work genuinely helps people live longer, healthier lives. Role Purpose Neko Health is looking for a Workday Integration Specialist to own the design, build, and maintenance of integrations between Workday and our wider systems landscape (TA, Reward, Payroll, Absence, Finance, and third … Service) to serve downstream systems and stakeholders Build and extend business processes using Workday Extend to digitise offline or manual processes Troubleshoot integration failures, including security/permission issues, data mapping errors, and connectivity problems Manage integration security: ISU setup, OAuth scopes, domain security policies, and API ...

Senior Fullstack Engineer (Python + React.js)

Location
Greater London, England, United Kingdom
skilled Fullstack Engineer to design, develop, and maintain scalable, secure, and efficient server-side applications. The ideal candidate should have experience in microservices architecture, API development, database management, and frontend ensuring high availability and performance of backend and frontend services. In this role, you will collaborate closely with frontend … security best practices, and performance optimization is crucial for success in this position. Your key responsibilities: Integrate models into backend systems and create API endpoints for model interaction (e.g., retrieving predictions). Develop and maintain scalable services, e.g. Microservices utilising REST, gRPC, or GraphQL, ensuring optimal performance and seamless ...

Enterprise Data & API Integration Executive

Location
Greater London, England, United Kingdom
Salesforce is hiring an Enterprise Account Executive for the Data & Integration (MuleSoft & Informatica) in London. You will lead multi-million dollar transformations, partner with CIOs/CTOs, and close complex enterprise deals with a robust, cross-functional team. Ideal candidates have 10+ years in B2B software sales, a track … record of quota achievement, and deep knowledge of API/integration platforms and data architecture. #J-18808-Ljbffr ...

Enterprise Account Executive – Data & Integration (MuleSoft & Informatica)

Location
Greater London, England, United Kingdom
right place! Agentforce is the future of AI, and you are the future of Salesforce.**Enterprise Account Executive – Data & Integration (MuleSoft & Informatica)****Location:** London**Business Unit:** Salesforce Data Foundation**Why Salesforce? Why Now?**The era of the **Agentic Enterprise** is here. With the rollout of **Salesforce Agentforce**, autonomous … across fragmented hybrid environments. That is why **MuleSoft and Informatica are mission-critical to Salesforce's core AI strategy**.By bringing together MuleSoft’s API orchestration and Informatica’s enterprise data management, you will sell the fundamental data backbone powering the next generation of enterprise AI.**The Opportunity ...

Senior Full Stack UI Engineer

Hiring Organisation
Luxoft
Location
London, UK
Employment Type
Full-time
frontend or full stack development experienceExperience working in Agile teamsFrontend/UI Development: Proficient in React, JavaScript/TypeScript, HTML5, and CSSUnderstanding of RESTful API integration and asynchronous data handlingFamiliarity with state management concepts (e.g., Redux or similar)Experience building responsive and user-friendly interfacesIntegration & Backend Awareness: Basic … understanding of backend services and API-driven architecturesExposure to integration concepts and messaging is a plus (Kafka, MQ)Experience with Loan IQ integration, APIs, and data model is a strong plusDevOps & Tooling: Exposure to CI/CD tools (e.g., GitLab, Jenkins)Familiarity with version control and branching ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
usable, performant ways for brokers and analysts.* **AI-Enabled Development:** Build AI-enabled product features using patterns such as retrieval-augmented generation, tool and API integration, evaluation and human-in-the-loop design.* **AI-Assisted Engineering:** Use AI-assisted engineering tools such as Claude Code or Claude Cowork … part of your day-to-day workflow, and help the wider team adopt them well.* **Integration:** Integrate with external market platforms, carrier and client systems, and vendor SaaS products using API-first and event-driven patterns.* **Quality & Security:** Practise test-driven development and write secure, maintainable code, applying ...

Azure Architect

Location
City Of London, England, United Kingdom
rate: £500 -600 a day inside IR35 About the Role The Client is seeking an experienced Cloud Azure Architect to lead the design and integration of its next-generation application hosting platform. The initial focus will be supporting the redevelopment of the Member Website platform being delivered by Pixel … formerly Azure AD) for secure member authentication, multi-factor authentication (MFA), and role-based access control (RBAC). Along with, data management and API integration overseeing the creation of secure RESTful APIs to connect the member app with legacy systems, CRM platforms, or third-party services. Platform Architecture ...

Node Developer

Location
Greater London, England, United Kingdom
field/specialism. Key Responsibilities Back‐End Development: Design, develop, and maintain server‐side applications and APIs using Node.js, ensuring performance, scalability, and security. API Integration: Work with RESTful APIs and third‐party services to integrate and enhance system functionality. Database Management: Develop and maintain database architectures (e.g. … data storage solutions. Code Optimization: Write clean, modular, and reusable code, adhering to best practices and design patterns. Testing and Debugging: Conduct unit and integration testing, debug issues, and ensure high‐quality, reliable, and maintainable code. Collaboration: Collaborate with front‐end developers to integrate front‐end components with server ...

Salesforce Integration Lead – Jitterbit

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
Salesforce Integration Lead – Jitterbit To 80,000 Remote with occasional travel to the London Office. Quant Capital is urgently looking for a Salesforce Integration Lead to join our well-known Fintech50 client who produces software disrupting the wealth management market. My client has dominated the domestic market with … role with the need for strong communication across the business. Day to Day the Data Engineer will: Develop solutions for data input and data integration as well as analysis and reporting. Ensure that the business fully utilises its Business Intelligence solutions, making full use of technologies, processes, and applications ...

AI Engineer-Anthropic-University/Graduate Level - UK

Location
Greater London, England, United Kingdom
Experience building AI, automation, chatbot, workflow‐based, or data‐driven projects through coursework, research, internships, hackathons, or personal projects. Exposure to Claude, the Anthropic API, Anthropic Console, Anthropic Academy learning, or Claude‐focused implementation guidance. Experience using LLM APIs to build conversational AI, document‐processing, summarization, search, knowledge‐assistant … IntegrationHub, or Flow Designer. Exposure to cloud platforms such as AWS, Microsoft Azure, or Google Cloud. Familiarity with Model Context Protocol (MCP) concepts, secure API integration patterns, or connecting AI applications to enterprise tools and data sources. Experience working in an agile software‐development environment. Interest in enterprise ...

Lead Developer

Location
Greater London, England, United Kingdom
technical blockers and navigating development challenges. Champion best practices in version control, branching strategies and release management. Support the team in working towards continuous integration and continuous deployment, work to remove technical impediments raised by the team and proactively elevate relevant issues Participate in and support recruitment, selection … deployment tools Cloud experience (AWS & Azure) and serverless code deployment AWS deployment methods and skills - Lambda, Step Function, DynamoDB, SNS/SQS, S3 etc API integration experience - experience building endpoints, writing, and reading OpenAPI specs Understanding of event driven architecture. Apigee skills desirable though not mandatory Hands ...

Encryption‐as‐a‐Service (EaaS) Platform Engineer

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
Cloud Platform. Experience developing scripts and automation solutions using languages such as Python, PowerShell, Bash, Java, C#, or Go. Working knowledge of REST APIs, API integrations, and service-based architectures. Experience with infrastructure-as-code and automation frameworks such as Terraform, Ansible, Jenkins, Harness, or similar CI/ ...

Implementation Manager - EMEA

Location
Greater London, England, United Kingdom
customer to understand their environment, use cases, and compliance requirements, and translate them into a clear implementation plan and configuration that meets their needs. Integration & Onboarding: Guide customers through technical integration with the Flagright platform, including API integration, data migration, backfills, and validation, and ensure their ...