15 of 15 API Integration Jobs in the City of London

Integration Developer Location: Central London/Hybrid Profectus Recruitment are working with a highly regarded Fintech organisation currently investing heavily in modern cloud integration, automation and enterprise platforms. We are looking for an experienced IT Integration Developer to help design and deliver secure, scalable integrations between internally … developed systems and modern SaaS platforms. This is a fantastic opportunity for somebody who enjoys solving complex integration challenges and working across cloud, middleware and API technologies within a business undergoing ongoing digital transformation. The Role You will act as the technical bridge between core business systems ...

Senior Technical Lead - Platform Integration & Implementation Remote (UK) | £85,000 - £90,000 + benefits | Permanent | Occasional UK travel A well-funded, growth-stage technology group is building the platform backbone for an ambitious UK-wide MSP roll-up. Fully equity-backed, no debt, and acquiring 8-10 regional MSPs … into a repeatable process. What you'll do Phase 1 (0-3 months): Lead the greenfield implementation of all core platforms. Build foundational REST API integrations and webhook-driven automations. Define the cross-platform data model - canonical field mapping, entity relationships and data quality standards across ...

ensuring alignment with architectural standards and platform best practices Collaborate with the AI Ops Core Pod to adopt and influence reusable assets, frameworks, and integration patterns Design and implement LLM-powered agent workflows using frameworks such as LangChain, LangGraph, or CrewAI Develop prompt chains , agent tools, and custom modules … feedback Contribute to the automation of testing, deployment, and validation pipelines for AI agents Maintain thorough documentation of agent behavior, design decisions, and integration logic for operational readiness and knowledge transfer Preferred Qualifications Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related technical field ...

Platform/Power Automate Proficiency building Power BI dashboards and reports for business stakeholders Bonus - Working knowledge of Python for scripting, data handling, or API integration Bonus - Experience with Snowflake as a cloud data platform Professional A commercial mindset: you think about business value first, technology second Strong ...

across the business to identify opportunities for new tooling, automation, and innovation. What you ll be doing: Developing applications using PHP and Laravel Building API integrations across multiple systems Creating customer-facing dashboards and reporting tools Exploring AI-assisted development approaches Helping shape bespoke software solutions across the business ...

similar certifications desirable] with recent experience of designing, documenting, and delivering complex digital solutions. Undertake development of customising Dataverse, canvas apps, API integrations with 3rd party systems. Any experience with AI, automation and digital service design principles Work closely with the wider team such ...

stack includes: Backend Services : Python 3.13, FastAPI, async micro-services architecture Data Layer : Neo4j graph database, PostgreSQL, complex data modelling AI/ML : OpenAI integration, semantic search, conversational agents, unstructured data analysis and extraction Infrastructure : AWS (Lambda, ECS/EKS, API Gateway, S3) DevOps : Terraform, GitHub Actions, Helm … NoSQL) Experience with graph databases (Neo4j preferred) or willingness to learn quickly Knowledge of event-driven architectures and message queues Knowledge of API design principles, data validation, and serialisation Experience with observability tools (OpenTelemetry, Prometheus, Grafana) Experience with AWS Lambda and serverless architectures Experience working across the stack (backend ...

stack includes: Backend Services : Python 3.13, FastAPI, async micro-services architecture Data Layer : Neo4j graph database, PostgreSQL, complex data modelling AI/ML : OpenAI integration, semantic search, conversational agents, unstructured data analysis and extraction Infrastructure : AWS (Lambda, ECS/EKS, API Gateway, S3) DevOps : Terraform, GitHub Actions, Helm … NoSQL) Experience with graph databases (Neo4j preferred) or willingness to learn quickly Knowledge of event-driven architectures and message queues Knowledge of API design principles, data validation, and serialisation Experience with AWS Lambda and serverless architectures Experience working across the stack (backend + some frontend) Understanding of web technologies ...

platform powering some of the world’s leading retail brands. This is a backend-focused engineering role, working across distributed systems, microservices architecture, and API integrations within a modern functional Scala environment. You’ll join a highly technical product engineering team building scalable systems that sit at the core ...

Systems architecture: identify repetitive work, build automations, eliminate friction Community Value Creation: creating value for our athletes, founders, and investors Technical builds: Supabase, N8N, API integrations, light code where needed Cross-functional work across fund ops, rightsholder programmes, and portfolio support Who this is for You've built something ...

this is worth reading. You will be Lead the technical delivery of a greenfield rebuild of a core business system, covering policy, claims and integration layers. Set and enforce technical standards, own code quality, and conduct structured code reviews across the delivery team. Work directly with … business requirements into sound technical design and produce low-level design documentation. Make architecture decisions, present options clearly to non-technical stakeholders, and govern integration standards across the programme. Support the Infrastructure and Data Engineers with cross-cutting technical decisions throughout the build. Post go-live: take on broader ...

hands-on experience with SharePoint SE and SharePoint Online Proven SPFx development TypeScript, JavaScript, React Experience with C#/.NET, SQL Server, and RESTful API integrations Solid on-prem admin background patching, performance tuning, troubleshooting BCS and ECT experience a strong plus Microsoft 365/Azure familiarity (Azure … worth considering Rare opportunity to own a full-scale SharePoint modernisation at a global law firm Broad technical scope development, administration, integration, and intranet design Exposure to senior stakeholders and real influence over platform direction A firm that takes its technology estate seriously ...

Event-driven architecture CI/CD pipelines What You'll Work With Python backend services LLM orchestration layers Vector databases (Pinecone, pgvector or similar) API integrations (CRMs, property systems) TypeScript React Next.js Nice to Haves Voice and telephony systems (Twilio, SIP, WebRTC) STT/TTS pipelines (Deepgram, ElevenLabs … similar) Messaging integrations (WhatsApp Business API) Observability tooling (Datadog, Sentry, LangSmith) Previous founding engineer experience Being a founding engineer or an ex-founder from any company backed by Antler or Entrepreneurs First is preferred but not required. Why Join/Projects The interesting bit here is the scope. ...

. Advise on the use of AI/LLM and wider digital tools to accelerate content creation, personalisation, optimisation, and operational efficiency. Drive the integration of AI tools with and within HubSpot, supporting evolving ways of working and improving productivity. Establish change control processes, platform governance guardrails, and documentation … understanding of B2B funnel architecture and pipeline attribution. Experience implementing data quality frameworks. Skilled in data management, segmentation, and reporting/analytics. Familiarity with API integrations, middleware tools, and data flow architecture. Strong knowledge of marketing automation, lead management, and workflow design. Proven track record advising Marketing teams ...

product teams to define and present tailored value propositions to (Re) Insurance Market clients Design and deliver technical architectures focused on connectivity, messaging, and API integrations Provide thought leadership and contribute to strategic roadmap for (Re) Insurance Market solutions Develop and maintain strong relationships with key stakeholders including brokers … Insurance Market operations, including placement, claims, and DA in the London and Global market. Strong technical knowledge of connectivity products, market standards, and API-based integrations. Experience with SaaS platforms and digital transformation initiatives ...