15 of 15 API Integration Jobs in Central London

Boomi Architect

Hiring Organisation
Syntax Consultancy Limited
Location
Westminster, Greater London, UK
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto … strategic integration platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library ...

Platform Architect

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
Discovery Zone to support the migration and modernisation of analytics and data science workloads currently running on POSIT/RStudio. Enable capabilities including: Secure API and external system integrations Application deployment and operationalisation External data ingestion BI and reporting connectivity Scheduling and orchestration Local IDE-based development … integration Operational monitoring and reporting Define reusable onboarding, migration and delivery patterns that reduce technology sprawl while improving platform security, supportability and delivery speed. Collaborate with stakeholders to support migration planning, solution design and adoption. Data Engineering and Integration: Design, build and optimise scalable data ingestion and transformation ...

AI & Copilot Developer

Hiring Organisation
Hunter Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum 33 days holiday, bonus + more
Apps and Power Automate. Experience or exposure to Copilot Studio, AI Agents, or Microsoft AI technologies. Knowledge of Dataverse, Power FX, JSON, JavaScript, and API integrations. Familiarity with Microsoft 365 and Azure environments. Strong problem-solving and analytical skills. Excellent communication skills and the ability to work with both ...

Aladdin Data Interface Consultant

Hiring Organisation
Teksystems
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
status updates and materials for steering committees and other governance forums. Define detailed interface requirements and produce clear design documentation for data flows and integration points. Support test planning for interfaces, including test case definition, test execution coordination and quality assurance of investment data flows. Coordinate defect triage … resolution related to interface and data integration issues, ensuring timely remediation and re-testing. Manage release readiness for interface changes, including documentation, sign-offs and alignment with broader programme release cycles. Apply strong knowledge of investment data domains such as security master, prices and market data, positions, trades, cash ...

Systems Developer

Hiring Organisation
Massenhove Recruitment Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
excellent opportunity for a developer who enjoys writing clean, efficient code and wants to contribute to projects with real business impact, including data integration, workflow automation, and system modernisation. What the ideal candidate will need to succeed This role offers excellent opportunities to develop a career within the insurance … design and optimisation of data pipelines and database interactions Support CI/CD pipeline development and deployment automation Write and maintain unit, integration, and regression tests Stay current with emerging technologies and recommend improvements where relevant Assist in 2nd/3rd line support Qualifications GCSEs in maths and English ...

Network Automation Architect

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £740/day
work collaboratively with various teams. Essential Skills: Cisco NX OS (VXLAN BGP EVPN, vPC, SNMPv3, TACACS+). Python for production-quality automation and REST API integration. GitHub/GitLab experience, including self-hosted runner configuration. YAML and JSON data handling. Red Hat Ansible Automation Platform. Experience producing HLD/ ...

D365 Lead CE/CRM Developer - Hybrid/UK - £80,000

Hiring Organisation
Circle Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Microsoft Dynamics 365. Strong experience with CE/CRM and Power Platform. Experience developing plugins, custom workflows and integrations. Knowledge of Dataverse, SQL and API integrations. Strong communication skills with the ability to work closely with stakeholders. Experience within an end-user environment would be advantageous. Package and benefits ...

Technical Solutions Engineer

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
Role Engage with customers to understand business and technical requirements Design and recommend scalable solution architectures Deliver technical demonstrations and workshops Advise customers on API integration and implementation approaches Resolve technical roadblocks and implementation challenges Build trusted relationships with customer stakeholders Work closely with Product and Engineering teams … About You Experience in Solutions Engineering, Presales, Solution Consulting or Technical Consulting within a SaaS environment Strong knowledge of APIs, RESTful services and systems integration SQL and database knowledge Excellent communication and presentation skills Ability to engage with both technical and business audiences Strong organisational and project management skills ...

Principal Consultant

Hiring Organisation
Intellect Design Arena Ltd
Location
City of London, London, United Kingdom
loan application? Have you mapped, built, or implemented a Loan Origination System (LOS) from the ground up and know every workflow, data field, and API integration by heart? We are looking for a highly specialised Product Operations & Workflow Expert for an initial 3- month contract. What … exact data fields, regulatory data points (FCA Consumer Duty, MCOB rules), and standard interface parameters required at each stage of the underwriting lifecycle. Interface & Integration Logic: Outline how modern LOS engines need to communicate with legacy core banking platforms, credit bureaus, valuation services, and intermediary/broker portals. Productizing ...

Integration Engineer (EPR Programme)

Hiring Organisation
Experis UK
Location
City of London, London, United Kingdom
Integration Engineer (EPR Programme) 12-Month Contract | Inside IR35 Up to £500 per day London – mostly remote based A consultancy supporting an NHS EPR programme is seeking an experienced Integration Engineer to join a large-scale Electronic Patient Record implementation. This is a key role within … healthcare environment. Working alongside application, architecture and supplier teams, you'll play a critical role in delivering robust interoperability solutions while supporting existing BAU integration services. Key Responsibilities Design, develop and support healthcare interfaces and integrations Analyse, map, transform and validate clinical and operational data flows Develop and maintain ...

Ecommerce AI Engineer (Contract)

Hiring Organisation
Salt
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £275/day
closely related area * Strong development skills in Python and JavaScript or TypeScript * Experience developing and optimising WordPress websites, including custom themes, plugins and API integrations * Experience integrating booking engines, ecommerce platforms and payment systems * Practical experience with OpenAI APIs, LLMs, RAG and agentic workflows * Experience integrating CRM platforms, WhatsApp … Business, webhooks and third-party APIs * Strong SQL, data-integration and dashboard-development skills * Knowledge of technical SEO, GA4, Google Tag Manager, Google Ads tracking and conversion optimisation * Experience with Opera Cloud or Opera V5 * The ability to translate commercial and operational requirements into practical technical solutions * Strong communication ...

Ecommerce AI Engineer

Hiring Organisation
Salt
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
closely related area * Strong development skills in Python and JavaScript or TypeScript * Experience developing and optimising WordPress websites, including custom themes, plugins and API integrations * Experience integrating booking engines, ecommerce platforms and payment systems * Practical experience with OpenAI APIs, LLMs, RAG and agentic workflows * Experience integrating CRM platforms, WhatsApp … Business, webhooks and third-party APIs * Strong SQL, data-integration and dashboard-development skills * Knowledge of technical SEO, GA4, Google Tag Manager, Google Ads tracking and conversion optimisation * Experience with Opera Cloud or Opera V5 * The ability to translate commercial and operational requirements into practical technical solutions * Strong communication ...

Dev-ops Engineer

Hiring Organisation
Armstrong Knight
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
commercial performance. The Role You'll take ownership of the organisation's digital ecosystem including: WordPress website development and maintenance CRM administration (HubSpot) API development and third-party integrations Website security, hosting and performance Marketing technology stack Business reporting and dashboards AI-powered workflow automation Release management and version … looking for someone with experience in several of the following: WordPress and PHP development HTML, CSS and JavaScript Git version control API integrations and automation CRM platforms such as HubSpot Website performance and security Google Analytics (GA4) Dashboard and reporting development AI coding tools including ChatGPT, Claude or GitHub ...

Senior Business Analyst - JSM Implementation

Hiring Organisation
Additional Resources
Location
Westminster, City of Westminster, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £600/day
Management using established workflows and operational processes. Creating and maintaining process maps, workflow documentation, user stories, implementation tickets and acceptance criteria. Analysing and supporting API integrations between Jira Service Management, HubSpot and other business systems. Ensuring solutions align with wider service management processes and technology environments. Supporting testing, validation … have progressed from discovery through to implementation and delivery. Strong skills in workflow design, process mapping and business documentation. Experience supporting system integrations, including API-related analysis. Knowledge of IT Service Management (ITSM) processes, workflow automation and service delivery models. Experience producing training materials, operational procedures and implementation documentation. ...

Contract Payments Specialist (iDEAL & SEPA)

Hiring Organisation
Spectrum IT Recruitment Limited
Location
Westminster, Greater London, UK
translate directly into engineering tasks. Key Responsibilities Review existing payment documentation, payment scenarios and Stripe integration. Analyse the current card payment lifecycle, including Stripe API calls and webhook events. Work with technical, operational and product stakeholders to validate the current state. Define how iDEAL and SEPA Direct Debit should … webhooks. Experience with subscription and recurring payment models. Strong understanding of payment failures, dunning, mandates, refunds, reversals and disputes. Ability to understand and document API integrations and webhook-driven architectures. Experience producing technical specifications that can be translated directly into engineering tasks. Strong technical business analysis and solution design ...