10 of 10 Contract API Integration Jobs in London

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
classification, regression, clustering, and NLP tasks. Understanding of model evaluation metrics, hyperparameter tuning, feature engineering, and MLOps practices for production deployment. Generative AI & LLM Integration - Proficient in working with Large Language Models including OpenAI GPT models, Anthropic Claude, Azure OpenAI, and open-source alternatives (Llama, Mistral). Experience with … automation solutions that leverage natural language understanding. Appian BPA Platform - Strong experience with Appian low-code platform including process modelling, interface design, expression rules, integration objects, and data modelling. Skilled in building end-to-end business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with ...

AI UX Engineer - £350PD - Remote

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £350 per day
deployment, and prompt engineering Agentic workflow development, ideally using AWS AgentCore Multi-agent orchestration frameworks such as AWS Strands Agents, LangGraph, or similar LLM integration and fine-tuning (Claude, GPT-4, or equivalent) Strong prompt engineering skills, including chain-of-thought reasoning RAG & Knowledge Systems Implementation of Retrieval-Augmented … Experience with vector databases such as CockroachDB, Pinecone, or similar Embedding model optimisation and semantic search Context window management and chunking strategies MCP & Tool Integration Model Context Protocol (MCP) implementation LLM tool calling and API design AWS Lambda integration with agents AI Safety & Evaluation Guardrail implementation (hallucination ...

Infrastructure Engineer / VMware Consultant

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Must have: Deep hands-on experience with vRA 8 and vRealize Orchestrator development Strong PowerShell skills Extensive experience with VMware Aria Operations & Logs REST API integration and automation experience Should have: VMware Cloud Foundation (VCF/VCFA) knowledge Python development experience Broad VMware full stack expertise Nice ...

Technical Solutions Architect

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600.0 - £640.0 per day + up to £640pd (Inside IR35)
Technical Solutions Architect - Azure, API, Finance/Pensions Up to £640 per day (Inside IR35) London/Remote 6 months My client is an instantly recognisable consultancy who are looking for a Technical Solutions Architect to define and align high-level design requirements for an end client. Key Requirements … core foundation technologies. Ability to manage high-level (HLD) and low-level (LLD) design processes with full traceability. Knowledge of Enterprise Architecture principles, API integration, and digital strategy alignment. Excellent stakeholder management, facilitation, and conflict resolution skills. Familiarity with technical risk analysis, governance processes, and compliance standards. Strong ...

AI Engineer

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
years of total IT experience. Hands-on experience with production-grade AI/ML projects, including at least two successful deployments. Strong expertise in: API integration & inter-service communication (REST, Kafka) Authentication/Authorization (OAuth2, JWT, Azure AD) NLP techniques (NER, classification, chunking, summarization, QA) RAG architectures ...

SC Cleared AWS DevOps Engineer

Hiring Organisation
ECS
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£370 - £375 per day
support CI/CD pipelines using GitLab Ensure infrastructure is secure, scalable, and reliable Monitor systems and applications, addressing performance and availability issues Support API integrations and deployments Strong experience with: Terraform AWS GitLab Active SC Clearance (essential, candidates without this will not be considered) Additional experience with ...

Qualtrics Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
Qualtrics platform as part of Toyota Financial Services' Customer Experience Discovery initiative. This role is critical in enabling data driven insights through seamless survey integration, analytics, and reporting. Key Responsibilities Build branded Qualtrics survey themes aligned with Toyota FS identity. Develop dynamic, multi-channel surveys (email, portal intercepts, exit … intent). Implement advanced branching logic and variation frameworks for A/B testing. Configure API connections to CRM systems and Power BI for real-time dashboards. Ensure secure data handling and compliance with GDPR and Toyota FS standards. Execute phased rollout of surveys, starting with small samples ...

Data Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Harmondsworth, West Drayton, Middlesex, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
security across systems. Collaborate with Data Scientists and Analysts to enable advanced analytics. Implement best practices for scalability and performance in cloud environments. Support integration of MRO AI Solutions into business operational workflows. Design data architecture and pipelines that support multi-OpCo deployment, ensuring modularity and interoperability. Required Skills … Experience Expertise in Python, SQL, and modern ETL frameworks. Hands-on experience with cloud platforms (AWS preferred). Strong knowledge of data modelling and API integration. Proven experience in developing, testing, and deploying data solutions into production environments, ensuring reliability, scalability, and maintainability beyond proof-of-concept or prototype ...

Front End Engineer

Hiring Organisation
InfinityQuest Ltd,
Location
West Drayton, London, United Kingdom
Employment Type
Contract
Deep hands-on experience with modern frontend frameworks (React, Typescript, etc) Hands-on experience with cloud platforms (AWS preferred); familiarity with scalable deployment and integration Strong knowledge of API integration. Proven experience in developing, testing, and deploying robust frontend solutions into production environments, ensuring reliability, scalability, and maintainability ...

Principal Engineer - AI & Data Platforms

Hiring Organisation
ARM
Location
Hounslow, London, Heathrow Villages, United Kingdom
Employment Type
Contract
frontend teams to deliver cohesive solutions across technologies. Implement best practices for scalability, performance, resilience, and security in cloud environments (AWS preferred). Support integration of AI solutions into operational workflows. Define technical standards and frameworks to enable multi-OpCo deployment and interoperability. Translate business and operational requirements into … expertise across programming languages, tools, and modern engineering stacks. Strong experience designing and building cloud-based systems (AWS preferred). Deep knowledge of API design and integration. Proven track record delivering high-value platforms within large, complex enterprise organisations. Demonstrated experience taking data and AI solutions from design through ...