API Integration Jobs in the UK

401 to 425 of 1,094 API Integration Jobs in the UK

GenAI Test Lead

London, England, United Kingdom
Redefined Ltd
adversarial testing). Integrate testing into CI/CD pipelines in collaboration with MLOps and DevOps teams. Ensure compliance with AI governance, data privacy, and responsible AI standards. Validate API integrations, including authentication, rate limits, and error handling. Your Profile Proven experience as a Test Lead, preferably in GenAI or LLM-based applications. Strong understanding of LLMs, prompt engineering More ❯
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GenAI Test Lead

London, United Kingdom
Capgemini
adversarial testing). Integrate testing into CI/CD pipelines in collaboration with MLOps and DevOps teams. Ensure compliance with AI governance, data privacy, and responsible AI standards. Validate API integrations, including authentication, rate limits, and error handling. Your Profile Proven experience as a Test Lead, preferably in GenAI or LLM-based applications. Strong understanding of LLMs, prompt engineering More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Consultant

London, England, United Kingdom
Appian UK
teams; experience with agile methodologies (pair programming, stand-ups, planning, sprints). Basic understanding of object-oriented programming, relational databases, data modeling, and SQL. Knowledge of software testing practices, API integrations (REST, SOAP), JDBC, web services, and familiarity with AWS, AI, Analytics, ML, Google Cloud, and containerization (preferred). Basic Qualifications: At least 3 years of hands-on software More ❯
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Marketing Cloud Consultant

London, England, United Kingdom
Liberty Towers
across multiple organisations. Proven track record of delivering large-scale, multi-channel marketing automation projects for enterprise clients. Strong technical proficiency in AMPscript, SQL, SSJS, HTML/CSS, and API integration. Experience with Salesforce CRM (Sales/Service Cloud) and Marketing Cloud Connect. Excellent stakeholder management and communication skills, with the ability to lead workshops and engage with diverse More ❯
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Product & Data Analyst

London, England, United Kingdom
Echobox
impact on product-related KPIs. Knowledge of CRM or CDP platforms (Salesforce Marketing Cloud, HubSpot, Segment) and their email modules. Experience with Python for data manipulation, reporting automation, or API integrations. Strong grasp of deliverability concepts, list-management, and segmentation strategies. Familiarity with HTML/CSS. Benefits: Our employees enjoy free breakfast every day, coffee, drinks and snacks all More ❯
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Ecommerce Developer

Manchester, England, United Kingdom
Softcat plc
technical solutions Develop workable solutions, producing clean efficient code from technical specifications and requirements documentation. Work with internal stakeholders and 3 rd party partners to understand, analyse and implement API integrations between relevant systems Support, maintain and fix existing functionality Optimi s e the platform for maximum speed and scalability We'd love you to have Technical Skills: Expert More ❯
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Solution Architect - Blockchain Security & Threat Monitoring - BCF

London, England, United Kingdom
Paradigm
build proof-of-concepts Design and deploy customized real-time monitoring solutions for smart contracts, transactions, and blockchain entities Lead technical onboarding and solution deployment, including custom monitor rules, API integrations, and alerting workflows Assist with integrations into customer pipelines and tools Provide ongoing advisory on threat models, detection coverage, and evolving security best practices Stay ahead of blockchain More ❯
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Product Owner ECRM Implementation

Cardiff, Wales, United Kingdom
Admiral Group Plc
ECRM Marketing Implementation team. This role focuses on enhancing customer experiences by integrating new marketing technology solutions. Key responsibilities include managing Email Deliverability, BIMI, Visual Builders, and app/API integrations. This is an opportunity to drive change and add value through new marketing technologies during an exciting period of investment in our Adobe Martech stack. Key Responsibilities Product More ❯
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Product & Data Analyst

London, England, United Kingdom
Echobox
impact on product-related KPIs. Knowledge of CRM or CDP platforms (Salesforce Marketing Cloud, HubSpot, Segment) and their email modules. Experience with Python for data manipulation, reporting automation, or API integrations. Strong grasp of deliverability concepts, list-management, and segmentation strategies. Familiarity with HTML/CSS. Benefits: Our employees enjoy free breakfast every day, coffee, drinks and snacks all More ❯
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Customer Success Engineer

London, England, United Kingdom
ThreatConnect
Degree in Computer Science or related field, or equivalent experience Knowledge of security solutions and technologies (Linux, network, firewalls, anti-virus, etc.) Understanding of the intelligence lifecycle Experience with API integrations, REST APIs, and troubleshooting Strong organizational skills Excellent communication and presentation skills, including interacting with senior executives Ability to articulate business and technical benefits of ThreatConnect products Strong More ❯
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Customer Success Engineer, UK

London, United Kingdom
ThreatConnect
anti-virus, spam and spyware solutions (Gateway and SaaS), malware/security experience Comprehensive understanding of the intelligence lifecycle, information needs, collection, organization, and priority intelligence requirements Comfortable writing API integrations and working with a variety of technologies in a dynamic customer environment - large focus on REST APIs and network connection troubleshooting Strong organizational skills with the ability to More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Data Scientist (R, MLOps)

London, United Kingdom
Tekaris GmbH
and implement MLOps frameworks to support the deployment of statistical models as REST APIs. Refactor and optimise R code for production use, with a focus on performance, reproducibility, and API integration. Educate both statisticians and engineering teams on MLOps principles to ensure shared understanding. Working at Ascent At Ascent we promote a healthy work-life balance by offering flexibility More ❯
Employment Type: Permanent
Salary: GBP Annual
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JavaScript/TypeScript API Integration

Manchester, Lancashire, United Kingdom
iO Associates
JavaScript/TypeScript API Engineer Contract Length: 6 Months Location: Manchester (1 Day a week in Manchester City Centre Office) Rate: Outside IR35 £350 - £400 per day Immediate Start Join a fast-moving product consultancy delivering high-impact software for a broad mix of clients across a range of sectors. They're now looking for an experienced contractor to … support a critical project focused on API development and complex system integration. The Role: You'll be part of a small, highly cooperative engineering team working on a SaaS platform designed to streamline and automate operational workflows. The focus is on building out and refining backend APIs, integrating third-party services, and improving the overall scalability and reliability of … the system. Tech Stack: TypeScript & JavaScript Node.js with Express n8n (workflow and automation integrations) PostgreSQL Permit.io (RBAC and auth) API best practices (rate limiting, downstream HTTP integrations) GraphQL (mostly migrating from) Day-to-Day Responsibilities: Contribute to backend development and API design using TypeScript Work on system integrations using n8n and other tools Collaborate on migrating from GraphQL More ❯
Employment Type: Permanent
Salary: GBP Annual
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JavaScript/TypeScript API Integration

Manchester, England, United Kingdom
iO Associates - UK/EU
JavaScript/TypeScript API Engineer Contract Length: 6 Months Location: Manchester (1 Day a week in Manchester City Centre Office) Rate: Outside IR35 £350 - £400 per day *Immediate Start* Join a fast-moving product consultancy delivering high-impact software for a broad mix of clients across a range of sectors. They're now looking for an experienced contractor to … support a critical project focused on API development and complex system integration. The Role: You'll be part of a small, highly cooperative engineering team working on a SaaS platform designed to streamline and automate operational workflows. The focus is on building out and refining backend APIs, integrating third-party services, and improving the overall scalability and reliability of … the system. Tech Stack: TypeScript & JavaScript Node.js with Express n8n (workflow and automation integrations) PostgreSQL Permit.io (RBAC and auth) API best practices (rate limiting, downstream HTTP integrations) GraphQL (mostly migrating from) Day-to-Day Responsibilities: Contribute to backend development and API design using TypeScript Work on system integrations using n8n and other tools Collaborate on migrating from GraphQL More ❯
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Senior Integration Consultant

London, United Kingdom
Expedia, Inc
and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We're building a more open world. Join us. Senior Technical Integration Consultant Introduction to team Private Label Solutions (PLS) is the B2B arm of Expedia Group. We bring Expedia Group's innovative technology and distribution solutions to partners across the … businesses include global financial institutions, corporate managed travel, offline travel agents, global travel suppliers (like major airlines) and many more. PLS is seeking an experienced and talented Senior Technical Integration Consultant. As a Senior Technical Integration Consultant, you will own and drive the technical integration discussions with a multitude of white label affiliate partners from a high … Management and Product organization. A passion for travel, a passion for technology and technology expertise combined with excellent communication skills and business acumen are critical to a Senior Technical Integration Consultant's success. In this role, you will: Support affiliate partners globally. Engage in pre-sales activity with the sales team and propose solution to meet partner needs Conduct More ❯
Employment Type: Permanent
Salary: GBP Annual
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Implementation (Integration) Consultant

London, United Kingdom
Hybrid / WFH Options
Robert Half
impact fintech environment. Key Responsibilities Develop deep subject matter expertise in the company's product suite, including APIs, data workflows, and SSI logic Support client onboarding by defining data integration methods and configuring ingestion tools Configure and test API connectivity for seamless data transmission between clients and the platform Provide best-practice guidance and training to clients, including … thrive in environments where you can make a real impact. Skills & Experience Required Experience delivering technology-based services in a client-facing role Strong knowledge of REST APIs and API integration Hands-on experience working with XML data Familiarity with AWS and API connectivity in cloud environments Excellent analytical and logical problem-solving skills Meticulous attention to More ❯
Employment Type: Permanent, Work From Home
Salary: £85,000
Posted:

Implementation Integration Consultant

London, South East, England, United Kingdom
Hybrid / WFH Options
Robert Half
impact fintech environment. Key Responsibilities Develop deep subject matter expertise in the company's product suite, including APIs, data workflows, and SSI logic Support client onboarding by defining data integration methods and configuring ingestion tools Configure and test API connectivity for seamless data transmission between clients and the platform Provide best-practice guidance and training to clients, including … thrive in environments where you can make a real impact. Skills & Experience Required Experience delivering technology-based services in a client-facing role Strong knowledge of REST APIs and API integration Hands-on experience working with XML data Familiarity with AWS and API connectivity in cloud environments Excellent analytical and logical problem-solving skills Meticulous attention to More ❯
Employment Type: Full-Time
Salary: £70,000 - £85,000 per annum
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Power Platform Developer – SharePoint & Azure Integration Specialist

London, England, United Kingdom
Hybrid / WFH Options
Pearson Carter
and build custom business solutions using PowerApps, Power Automate, and SharePoint Online to automate processes and improve productivity. Develop integrations between Power Platform, Azure services (Azure Functions, Logic Apps, API Management) , and external systems for seamless data flow. Collaborate with cross-functional teams to gather requirements and deliver user-centric solutions that drive business outcomes. Support and maintain existing … Platform and SharePoint environments. What You Bring Solid experience with PowerApps, Power Automate, and SharePoint Online development and customization. Practical knowledge of Azure services including Functions, Logic Apps, and API integrations. Familiarity with Dataverse and model-driven app concepts is a plus. Proven ability to troubleshoot, optimize, and support Power Platform and SharePoint solutions. Excellent communication skills with a … mindset. Bonus Points For Experience with Dynamics 365 CE modules (Sales, Customer Service, Marketing). Knowledge of Microsoft Teams integrations or other Microsoft 365 services. Hands-on experience with API management platforms like MuleSoft, Zapier, or Integromat. Why Join? Be part of a future-focused company that embraces Microsoft technologies to transform business processes. Work within a supportive, knowledge More ❯
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Lead Cloud Engineer

London, England, United Kingdom
ZipRecruiter
Job Description Lead Cloud Engineer - Insurance A leading London Market Insurer is embarking on a greenfield Cloud Platform System Integration initiative and is looking for a seasoned Azure Cloud Engineer to take a central role. This is a critical opportunity to lead the implementation of a brand-new system and ensure its seamless integration across the business. You … will be responsible for leading the design and implementation of Azure solutions, with a strong focus on API integration, Azure Integration Services, and Infrastructure as Code using Bicep. Proficiency in C#/.NET is essential for developing and integrating custom services. It's also beneficial if you come from an Insurance background. This is an Outside IR35 … rate of £650 - £700 p/d. Hybrid role in London office. Key Responsibilities: Lead the implementation of Azure cloud platform Develop robust APIs using OpenAPI, JSON, and Azure Integration Services (Logic Apps, API Management, Service Bus) Write clean, maintainable code in C#/.NET for cloud applications and integrations Define and implement Infrastructure as Code using Bicep More ❯
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Lead Cloud Engineer

City of London, England, United Kingdom
JR United Kingdom
Yes col-narrow-right Job Views: 1 Posted: 23.05.2025 Expiry Date: 07.07.2025 col-wide Job Description: A leading London Market Insurer is embarking on a greenfield Cloud Platform System Integration initiative and is looking for a seasoned Azure Cloud Engineer to take a central role. This is a critical opportunity to lead the implementation of a brand-new system … and ensure its seamless integration across the business. You will be responsible for leading the design and implementation of Azure solutions, with a strong focus on API integration, Azure Integration Services, and Infrastructure as Code using Bicep. Proficiency in C#/.NET is essential for developing and integrating custom services. It's also beneficial that you … rate of £650 - £700 p/d. Hybrid role in London office. Key Responsibilities: Lead the implementation of Azure cloud platform Develop robust APIs using OpenAPI, JSON, and Azure Integration Services (Logic Apps, API Management, Service Bus) Write clean, maintainable code in C#/.NET for cloud-native applications and integrations Define and implement Infrastructure as Code using More ❯
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Electronic Trader

London Area, United Kingdom
Nonco
critical role in supporting and expanding our electronic trading infrastructure and client connectivity. Key Responsibilities: Client Onboarding: Design and implement onboarding processes for new electronic trading clients, ensuring seamless integration and optimal experience. API & FIX Documentation: Maintain, update, and improve technical documentation for REST, WebSocket, and FIX APIs. Integration Support: Develop and maintain sample code and technical … guides to showcase integration workflows with our trading APIs. Client Support: Provide comprehensive technical and business support to clients, acting as a bridge between trading operations and external stakeholders. Issue Resolution: Troubleshoot and resolve issues related to connectivity, order routing, and electronic execution across all trading channels. Performance Reporting: Generate and analyze execution performance metrics and PnL reports to … support internal teams and clients. Required Qualifications: Experience: Minimum of 5 years of hands-on experience with Java and FIX protocol. API Integration: Strong experience integrating with REST and WebSocket APIs . Database Skills: Proficient in SQL , with a focus on PostgreSQL . Industry Knowledge: Deep understanding of order routing workflows , market structure, and trading protocols in the More ❯
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Electronic Trader

City of London, London, United Kingdom
Nonco
critical role in supporting and expanding our electronic trading infrastructure and client connectivity. Key Responsibilities: Client Onboarding: Design and implement onboarding processes for new electronic trading clients, ensuring seamless integration and optimal experience. API & FIX Documentation: Maintain, update, and improve technical documentation for REST, WebSocket, and FIX APIs. Integration Support: Develop and maintain sample code and technical … guides to showcase integration workflows with our trading APIs. Client Support: Provide comprehensive technical and business support to clients, acting as a bridge between trading operations and external stakeholders. Issue Resolution: Troubleshoot and resolve issues related to connectivity, order routing, and electronic execution across all trading channels. Performance Reporting: Generate and analyze execution performance metrics and PnL reports to … support internal teams and clients. Required Qualifications: Experience: Minimum of 5 years of hands-on experience with Java and FIX protocol. API Integration: Strong experience integrating with REST and WebSocket APIs . Database Skills: Proficient in SQL , with a focus on PostgreSQL . Industry Knowledge: Deep understanding of order routing workflows , market structure, and trading protocols in the More ❯
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Electronic Trader

Slough, England, United Kingdom
JR United Kingdom
critical role in supporting and expanding our electronic trading infrastructure and client connectivity. Key Responsibilities: Client Onboarding: Design and implement onboarding processes for new electronic trading clients, ensuring seamless integration and optimal experience. API & FIX Documentation: Maintain, update, and improve technical documentation for REST, WebSocket, and FIX APIs. Integration Support: Develop and maintain sample code and technical … guides to showcase integration workflows with our trading APIs. Client Support: Provide comprehensive technical and business support to clients, acting as a bridge between trading operations and external stakeholders. Issue Resolution: Troubleshoot and resolve issues related to connectivity, order routing, and electronic execution across all trading channels. Performance Reporting: Generate and analyze execution performance metrics and PnL reports to … support internal teams and clients. Required Qualifications: Experience: Minimum of 5 years of hands-on experience with Java and FIX protocol. API Integration: Strong experience integrating with REST and WebSocket APIs . Database Skills: Proficient in SQL , with a focus on PostgreSQL . Industry Knowledge: Deep understanding of order routing workflows , market structure, and trading protocols in the More ❯
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Senior UI Lead

London, England, United Kingdom
Hybrid / WFH Options
N Consulting Limited
Experience using various design patterns, preferably MVC, Singleton, Facade, and Factory Proficient in Object-Oriented Design (OOD), Implementation, and Design Patterns Hands-on experience with React JS and Java API integration Experience with React frameworks, Java, JPA, JSON, JavaScript, and RESTful API microservices Solid understanding of web and mobile application architecture and security, including OAuth, JWT, Spring More ❯
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Electronic Trader

City of London, England, United Kingdom
JR United Kingdom
critical role in supporting and expanding our electronic trading infrastructure and client connectivity. Key Responsibilities: Client Onboarding: Design and implement onboarding processes for new electronic trading clients, ensuring seamless integration and optimal experience. API & FIX Documentation: Maintain, update, and improve technical documentation for REST, WebSocket, and FIX APIs. Integration Support: Develop and maintain sample code and technical … guides to showcase integration workflows with our trading APIs. Client Support: Provide comprehensive technical and business support to clients, acting as a bridge between trading operations and external stakeholders. Issue Resolution: Troubleshoot and resolve issues related to connectivity, order routing, and electronic execution across all trading channels. Performance Reporting: Generate and analyze execution performance metrics and PnL reports to … support internal teams and clients. Required Qualifications: Experience: Minimum of 5 years of hands-on experience with Java and FIX protocol. API Integration: Strong experience integrating with REST and WebSocket APIs . Database Skills: Proficient in SQL , with a focus on PostgreSQL . Industry Knowledge: Deep understanding of order routing workflows , market structure, and trading protocols in the More ❯
Posted:
API Integration
10th Percentile
£42,325
25th Percentile
£53,550
Median
£70,000
75th Percentile
£83,750
90th Percentile
£100,000