1 to 25 of 69 API Integration Jobs in the City of London

API Platform Architect (.Net, APIM, Azure, Kubernetes)

Hiring Organisation
Insight International (UK) Ltd
Location
City of London, London, United Kingdom
Role: API Platform Architect Location: London (2-3days/week On-Site) Job Type: Contract We are seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform. This role is fully hands-on , combining … deep expertise in Azure cloud services, Kubernetes, Terraform, API security, and distributed systems with the ability to guide, review, and contribute to .NET Core API development practices . The architect will define and maintain the vision and standards for the platform while actively engaging in coding, troubleshooting, design ...

Program Manager, API Integration

Hiring Organisation
PureSpectrum
Location
City of London, London, United Kingdom
hybrid role with an in-office requirement of 3–4 days per week The Opportunity: We are seeking a client-focused and consultative Manager, API Integrations to lead how our customers and partners connect PureSpectrum into their broader MarTech and insights ecosystems. You will own the customer integration … work closely with engineering teams and enterprise clients on data and workflow challenges. Your work will directly accelerate customer activation, platform adoption, and integration-driven revenue. Key Responsibilities: Serve as the primary technical advisor for enterprise clients and partners during integration planning and delivery. Lead technical discovery, solution ...

Senior Data Engineer

Hiring Organisation
RELX
Location
City of London, London, United Kingdom
data from internal and external APIs, SFTP endpoints, on-premise databases, and cloud data platforms. Use Python extensively within Fabric notebooks for data processing, API integration, automation, and advanced transformation logic. Develop and maintain Fabric Dataflows, Pipelines, Lakehouse tables, and Warehouse objects to support enterprise analytics and downstream … Medallion Architecture with clear responsibility for engineering Bronze and Silver layers that support reliable downstream consumption. Advanced Python skills for ETL or ELT processes, API integration, data manipulation, and data quality enforcement. SQL proficiency with experience in schema design, performance tuning, and analytical data modelling. Proven experience integrating ...

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 ...

Artificial Intelligence Consultant

Hiring Organisation
Intelix.AI
Location
City of London, London, United Kingdom
Services, Cognitive Services, AI Foundry, Responsible AItoolkit) - Technical stack: Python, Java, C++, Java7Script, HTML, CSS, PHP, SQL (MySQL,Oracle), VSCode, Jupyter and Experienced in API integration, deployment strategies, and cloud governance frameworks Key Responsibilities Own the end-to-end lifecycle of Microsoft Copilot and AI productivity tooling. Define … across business and technology. Confident owning roadmaps, budgets, and vendor relationships. Core Technical Skills Microsoft 365 (Teams, SharePoint, OneDrive, Exchange) Copilot Studio and GenAI integration Power Platform (Power Automate, Power Apps) Microsoft Graph API and workflow integration Information Protection, DLP, and governance controls ...

Lead Software Engineer

Hiring Organisation
iProov
Location
City of London, London, United Kingdom
Technical Lead (Microsoft Integration & Identity Portal) About iProov iProov provides science-based biometric solutions that enable the world’s most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access. Our award-winning liveness technology and iSOC offer unmatched resilience against deepfakes and generative … Officer Location: UK - Hybrid Comp: Negotiable (Base) + Company Performance Bonus (20%) + Share Options + UK iProov Benefits iProov is expanding its Microsoft integration capability and building a dedicated identity portal that uses our biometric technology to verify users and perform secure operations within Microsoft Entra (such ...

Software Engineer

Hiring Organisation
OTA Recruitment
Location
City of London, London, United Kingdom
memory storage. Experience working with AWS k8s, EKS, S3, Athena, ECS, Cloud Formation, Lambdas & Cloudwatch. Experience with concurrent development source control (GIT). Systems integration experience with networking, data migrations, API integration and design. Enthusiasm for clean systems, including documentation, logging, and reproducibility. Excellent presentation, documentation, time ...

Platform Engineer - AI - £100K+

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
this key role you’ll design and implement new Kubernetes and container orchestration, own the AWS infrastructure with Terraform, build Python microservices and ensure API integration – Very varied! Requirements: Strong Kubernetes expertise Deep understanding of Deployments, Services, ConfigMaps etc Experience with pod autoscaling (HPA/VPA) and resource … optimisation Systems knowledge - From container orchestration and CI/CD pipelines to API design and frontend integration Excellent experience with Infrastructure as Code with Terraform, AWS services (EKS, S3, RDS, ECR, IAM) and DevOps A self-starter who can work autonomously from day one Strong academic background would ...

DevOps Engineer - AI - £100K

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
this key role you’ll design and implement new Kubernetes and container orchestration, own the AWS infrastructure with Terraform, build Python microservices and ensure API integration – Very varied! Requirements: Strong Kubernetes expertise Deep understanding of Deployments, Services, ConfigMaps etc Experience with pod autoscaling (HPA/VPA) and resource … optimisation Systems knowledge - From container orchestration and CI/CD pipelines to API design and frontend integration Excellent experience with Infrastructure as Code with Terraform, AWS services (EKS, S3, RDS, ECR, IAM) and DevOps A self-starter who can work autonomously from day one Strong academic background would ...

IT Application Development Manager

Hiring Organisation
Totum Partners
Location
City of London, London, United Kingdom
application support and application development teams Job Responsibilities To lead the management and continuous improvement of the firms' business applications portfolio, ensuring system performance, integration, and alignment with the firm’s strategic and security objectives, along with overseeing the in-house development and implementation of off the shelf software … application and development function within a law firm. Knowledge of SQL, C#, Python, Java, HTML/CSS, and related development frameworks. Understanding of API integration, data modelling, and application performance tuning. Experience with software lifecycle tools (e.g., Jira, Azure DevOps, ManageEngine Projects). Awareness of cloud platforms (Azure ...

IT Applications & Development Manager - Law Firm

Hiring Organisation
Totum Partners
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 - 100,000 Annual
Responsibilities To lead the management and continuous improvement of the firms' business applications portfolio, ensuring system performance, integration, and alignment with the firm's strategic and security objectives, along with overseeing the in-house development and implementation of off the shelf software that increases efficiencies across the firm. Lead … Experience with legal application such as iManage or Inprotech. Knowledge of SQL, C#, Python, Java, HTML/CSS, and related development frameworks. Understanding of API integration, data modelling, and application performance tuning. Project management skills are essential for implementing new systems or major upgrades. Experience with software life ...

Technical Lead - FinTech ScaleUp

Hiring Organisation
Bondaval
Location
City Of London, England, United Kingdom
have built and designed distributed systems and scalable architectures. Experience with relational databases (Postgres) and NoSQL databases (MongoDB, Redis, Cassandra). Experience with RESTful API design and integration. Familiarity with front-end frameworks (VueJS, React, or Angular). Good knowledge of source control (Git) and CI/CD tools. ...

Senior Software Engineer (Python)

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
Actions) and containerisation (Docker). Experience designing scalable, secure systems using modern principles (SOLID, TDD). Familiarity with databases (SQL, NoSQL, or graph) and API integrations. Excellent communicator who thrives in a collaborative, fast-paced environment. ✨ Nice-to-haves: Experience with Generative AI/LLMs in applied engineering contexts. ...

💻 Full-Stack Engineer (C# → Python Migration) | Azure | Regulatory Tech | £100,000–£110,000 + Benefits | Hybrid (London)

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
building a site from the ground up 🗄️ Strong database modelling and engineering capability 🔧 Azure DevOps, Git, CI/CD 💬 Good PowerShell scripting 📚 Understanding of API integration & system architecture Desirable 🐍 Exposure to Python and Databricks 🔄 ETL workflows/SSIS 📜 Regulatory reporting knowledge — especially: EMIR MiFID REMIT Secondary: MASS , Canadian ...

Chief Technology Officer

Hiring Organisation
Hawes and Curtis
Location
City of London, London, United Kingdom
systems, CRM, PIM, DAM, and omnichannel customer experiences. Evaluate and implement emerging technologies that enhance retail operations, online conversions, and customer loyalty. Ensure seamless integration between digital and in-store experiences (Shopify experience is advantageous) Data, Insights & Business Intelligence Develop the group’s data and analytics capabilities, enabling data … leadership, communication, and stakeholder management skills Ability to balance innovation with operational stability and commercial priorities. Deep understanding of e-commerce ecosystems, retail systems, integration tools, and digital experience platforms. Strong technical expertise (SQL, HTML, .NET, PHP, JavaScript) Strong understanding of API integration and Azure. Experience ...

Frontend Developer

Hiring Organisation
BettingJobs
Location
City of London, London, United Kingdom
managing a Vue web app. Strong knowledge of Vue 2 and Nuxt 2 Experience with Vue 3 Vuetify framework experience Strong javascript skills API integration experience Experience with CSS/SCSS Bonus Points: Vue 2 to Vue 3 migration experience Familiarity with Python and Django Azure clould platform ...

Python Engineer

Hiring Organisation
Bloc Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£475 per day
Experience with ETL/data pipelines, containerisation (Docker/Kubernetes), and cloud environments (AWS/GCP) Strong grasp of databases (SQL/NoSQL) and API integrations Collaborative mindset and clear communication ...

Wealth Investment Consultant

Hiring Organisation
IGA Talent Solutions
Location
City of London, London, United Kingdom
Client Servicing & Implementation team. We’re looking for a technically strong, client-focused professional who is excited by the intersection of investment advice, data integration, and digital transformation — and who wants to play a hands-on role helping banks and wealth managers implement advanced financial-planning technology. … heart of everything they do. In this role, you will: Support UK banks and wealth managers with the technical implementation and integration of the firm’s financial-planning platform. Guide clients through API integration, data connections, configuration and custom reporting. Act as the day-to-day technical ...

IGA Consultant

Hiring Organisation
Hyerhub
Location
City of London, London, United Kingdom
OAuth). Experience integrating IGA platforms with HR systems (e.g., Workday, SAP), 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. ...

Software Engineer

Hiring Organisation
ConSol Partners
Location
City of London, London, United Kingdom
team culture. Hands-On Development: Design and develop highly scalable backend services using Java and Spring Boot , with a focus on high-performance API integration . Hybrid Deployment: Build and deploy containerized applications across the full Hybrid Cloud Architecture , spanning the on-prem OpenShift private cloud ...

Senior Product Manager at AdTech Scale Up (Remote)

Hiring Organisation
Grey Matter Recruitment
Location
City of London, London, United Kingdom
plus Exceptional communication skills across technical and non-technical audiences Experience managing direct reports Strong analytical mindset and data-driven decision-making Understanding of API integrations and Agile methodologies Bonus: Experience building optimisation or AI/ML-powered AdTech solutions Background growing products across multiple verticals Industry thought leadership ...

PAM Consultant

Hiring Organisation
Hyerhub
Location
City of London, London, United Kingdom
LDAP, 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 ...

Senior Frontend Developer

Hiring Organisation
Noir
Location
City of London, London, United Kingdom
following: React , React Native , TypeScript, JavaScript (ES6+), HTML, CSS, Component-Driven Architecture, Design Systems, State Management (Redux, MobX, Apollo, Zustand), Accessibility, Testing, Performance Optimisation, API Integration, Vite, Webpack, Storybook, and mobile development using React Native . All positions come with the following benefits: • Unlimited holiday • Free medical, dental ...

Lead Data Engineer

Hiring Organisation
La Fosse
Location
City of London, London, United Kingdom
business value. Requirements Strong hands-on experience with AWS (Azure or GCP also considered). Excellent programming skills in Python . Proven background in API development and integration. Experience building and maintaining modern data pipelines using Airflow and Kafka . Solid understanding of Snowflake or similar cloud data warehouses. ...

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

Hiring Organisation
Astera
Location
City of London, London, United Kingdom
designs into pixel-accurate UI User onboarding, application flows, and status tracking Admin-driven workflows and internal review tools Secure authentication and backend/API integrations App Store and Google Play deployment Tech expectations .NET MAUI strongly preferred (Equivalent cross-platform frameworks considered if well justified.) Proven experience implementing ...