1 to 25 of 101 Permanent API Integration Jobs in the UK

looking for skilled contractors to support project-based engagements. 📄 Your responsibilities: The objective of this role is to design, build, and govern an API integration layer connecting multiple internal and external systems within a complex energy trading environment. 💼 Required technical skills: API & Integration Architecture: Strong expertise … API integration, REST API design and exposure, interface-driven architectures, integration-heavy environments, abstraction layers, system decoupling Backend Development: .NET Core, C#, API services, integration services Architeture & Platforms: Design of scalable and reusable integration layers, interoperability with multiple systems (internal & external), data platforms ...

lead projects, mentor junior developers, and work on high-impact, secure banking solutions. You will be a key contributor to web portal and API development, ensuring performance, security, and reliability in a dynamic environment. This role is ideal for developers with strong technical expertise who are looking to grow … portals using ASP.NET MVC/.NET Core Design and integrate REST APIs with internal and third-party services Implement secure authentication mechanisms (JWT, OAuth2, API Keys) Connect applications to relational databases using Entity Framework Core (DbContext, LINQ, Migrations) Debug and trace request flows from UI Controller API Database ...

solutions, while contributing to best practices and technical standards. Key responsibilities include: Developing and maintaining web applications, primarily using PHP (Symfony) Designing and implementing API integrations with internal and external systems Writing clean, maintainable, and secure code Troubleshooting and resolving application and integration issues Supporting and improving existing … Experience We are interested in candidates with experience in the following areas: Strong PHP development experience, ideally with Symfony Experience with microservice design and API integration (RESTful services) Experience working with Python Frontend development (HTML, CSS, JavaScript) Basic/working knowledge of SQL, including queries and joins Experience ...

000.00-£45,000.00 per year Job Description: Codeless BPA Developer (MS SQL & API Integration) Location: Remote Role Overview A well-established, multi-award-winning Sage Intacct partner is looking for a Codeless BPA Developer to join their growing technical team. The role is responsible for designing, building … Automate, Boomi, Workato, Make, or similar) Analyse existing manual processes and redesign them for automation, efficiency, and scalability Build reusable automation components, templates, and integration patterns Collaborate with functional consultants and project managers to ensure automated solutions align with business requirements and project timelines Systems Integration Integrate ...

automation solutions in an enterprise environment, with hands-on build and delivery responsibility Strong experience integrating systems and data sources into coherent workflows (API-led integration, events and/or data pipelines) Hands-on software development capability, with proficiency in at least one mainstream language used for enterprise … API integration and automation (e.g., C#/.NET, Python); able to design, build, test and release small services/integrations Practical experience delivering AI-assisted workflow features into production, including validation/testing and monitoring Understanding of common AI delivery patterns and controls Good cloud experience (preferably Azure ...

London, 5 days onsite FTE role. Required qualifications, capabilities, and skills Formal training or certification on API Management Platform concepts and proficient advanced experience Hands-on practical experience delivering system design, application development, testing, and operational stability Advanced in one or more programming language(s) - Golang or LUA Script … automation and continuous delivery methods In-depth knowledge of the financial services industry and their IT systems Practical cloud native experience Professional experience in API management technology eg API GEE, Kong, Mulesoft Strong understand of OpenAPI Specification (OAS) for RESTful API s DevOps (CICD, Kubernetes, Terraform) Preferred ...

Automation Engineer - Python, API integration, Power Automate Location: Remote based. Salary: Paying up to 80k, depending on experience A highly respected Managed Services Provider based in London, is seeking a talented Automation Engineer to drive integration and automation initiatives across their service tooling environment. This … excellent opportunity for a senior engineer with strong scripting and API skills who wants to design intelligent solutions, streamline operations, and help create reusable automation packages that can later be rolled out to customers. Role Responsibilities Developing integrations across the client's key platforms, including Halo, RMM tools ...

. Job Purpose, Tasks and Responsibilities You will be responsible for: • Owning the end-to-end technical delivery of acquired business onboarding and platform integration, from early discovery through to successful go-live and handover • Leading programme planning, dependency management, cutover planning, and hypercare, coordinating across engineering, data, Salesforce … scalable delivery practices, including onboarding playbooks, runbooks, documentation standards, delivery metrics, risk tracking, and release management processes • Ensuring controlled, predictable go-lives across multiple integration programmes • Acting as a senior technical authority, championing Wilmington s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches ...

. Job Purpose, Tasks and Responsibilities You will be responsible for: • Owning the end-to-end technical delivery of acquired business onboarding and platform integration, from early discovery through to successful go-live and handover • Leading programme planning, dependency management, cutover planning, and hypercare, coordinating across engineering, data, Salesforce … scalable delivery practices, including onboarding playbooks, runbooks, documentation standards, delivery metrics, risk tracking, and release management processes • Ensuring controlled, predictable go-lives across multiple integration programmes • Acting as a senior technical authority, championing Wilmington’s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches ...

frameworks such as PyTorch or TensorFlow Experience working with large-scale unstructured data Experience building and deploying production-ready NLP systems Familiarity with API integrations and data acquisition pipelines Experience implementing software engineering best practices including Git and agile development Experience working with cloud environments (preferably AWS) Nice ...

help build their business. Role Theyre looking for aJava Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts …/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some ...

operations to deliver practical solutions Improve system performance, reliability, and developer workflows Front-end JavaScript/TypeScript Vue/Nuxt or similar REST API integration Solid CSS/SCSS/SASS State management and component-based development Unit/end-to-end Testing and Git workflows Experience with ...

Dynamics 365 ecosystem and integrated enterprise systems. This position blends technical leadership, architectural ownership and delivery oversight, with a strong focus on system design, integration strategy and scalable solution development. Key Responsibilities Development Leadership & Delivery* Lead, mentor and support the development team.* Own and maintain the application development roadmap. … technical input when required. Architecture & Design* Lead solution architecture across the Dynamics 365 landscape.* Design secure, scalable and maintainable systems.* Define and oversee integration architecture.* Produce high-quality technical documentation and design artefacts. Technical Leadership* Act as the technical authority for Dynamics 365 and related platforms.* Provide guidance ...

maintain Dataverse tables, relationships, and security models Integrate solutions with Microsoft 365 (SharePoint, Teams, Outlook) and external systems Create and manage custom connectors and API integrations Translate business requirements into functional and technical solutions Conduct testing, troubleshooting, and performance optimisation Provide documentation, user support, and training where required Stay ...

across treasury, accounting, trading and middle‐office operations. Building tools to improve collateral & margin management, capital usage reporting, and trade reconciliation. Designing and implementing API integrations across internal and third‐party systems. Developing in‐house solutions to replace outsourced or legacy technology. Creating data pipelines that improve reporting ...

5+ years PHP experience (Laravel strongly preferred) Strong JavaScript, HTML and CSS skills Experience building scalable, secure and highly available systems REST and SOAP API integration experience Test Driven Development (TDD) and PHPUnit Docker experience Git version control (GitHub preferred) Experience working in Agile/Kanban teams Strong ...

Requirements Strong hands-on experience with Microsoft Fabric (Lakehouse, Warehouse, pipelines) Advanced SQL and strong PySpark experience Proficiency in Python for data processing and API integration Experience building Power BI models and dashboards for business reporting Strong understanding of ETL/ELT design and data modelling principles Experience ...

Designing, building and scaling modern web platforms and Salesforce solutions * Building end-to-end features across web apps and Salesforce, including LWC * Designing REST API integrations between internal systems * Owning and overseeing the full software development lifecycle * Contributing to architecture, CI/CD and engineering standards * Working closely with ...

Strong Salesforce (Sales Cloud) experience Proven background as a Technical Lead/Solution Architect/Solution Engineer Experience with: AWS (Glue, AppFlow) Java development API integrations (REST/SOAP) CI/CD pipelines & cloud deployment (AWS/Azure) Experience working across business requirements/user journeys (BA background beneficial ...

experience in React. You'll be playing a key part in building and evolving user interfaces that power their products, working across component design, API integration and performance optimisation. It is an ideal position for someone who enjoys solving real user problems, collaborating with others and continuously developing … React applications supporting end-to-end customer journeys Develop reusable components, patterns and UI frameworks to drive consistency and scalability Integrate frontend applications with API-driven services, ensuring reliable and clear data flows Troubleshoot and resolve UI issues, performance bottlenecks and user-reported problems Contribute to technical discussions, sprint ...

Core APIs Entity Framework Core & Dapper (and knowing when to use each) SOLID principles & clean architecture Asynchronous programming, concurrency & performance tuning TDD, unit testing & integration testing Code quality gates & peer review discipline Secure coding practices Frontend Engineering TypeScript React Next.js Modern frontend patterns (hooks, state management, server/client … data fetching) Robust API integration & error handling Identity & Security Architecture Authentication & authorisation design SSO flows OAuth2 & OpenID Connect JWT best practices (signing, expiry, refresh, validation) Multi-tenant architecture (data isolation, tenant-aware auth, scaling) Cloud & Infrastructure (Azure) Azure PaaS (App Services, Functions, Storage, Service Bus, Key Vault) Docker ...

ability to engage with non-technical stakeholders - Any experience working on manufacturing, distribution or logistics would be a plus - Exposure to modernisation projects (e.g. API integration, web front ends) - Supporting integration and modernisation initiatives (APIs, new front-end technologies, etc.) - Troubleshooting complex issues and ensuring system reliability ...

analysis within an ERP centric environment. Hands on experience with enterprise resource planning systems Relational database experience e.g. writing queries, and performance tuning. Systems integration, API’s and data flows between enterprise platforms. Communication and stakeholder engagement skills with a customer driven approach. The ability to document requirements … supply chain or product distribution. Experience with Crystal Reports, Sage Enterprise Intelligence or similar reporting tools. Knowledge and experience of working with web services, API integrations, or system automation. Familiarity with Magento, Shopify, or other B2B ecommerce platforms. Microsoft SQL Experience. Due to the large number of responses ...

collaborative tech team with real ownership and long-term growth potential. The Role Develop and maintain applications using PHP JavaScript for frontend & API integration Maintain & optimise MySQL databases Monitor systems, troubleshoot issues and improve performance Collaborate with internal teams and external partners Product enhancements Tech Stack PHP (essential … Strong willingness to learn APPLY NOW to be considered for interviews! Senior PHP Developer - PHP - Software Developer - JavaScript - Laravel - Linux - AWS - MySQL - MariaDB - Developer - API - Vue.js ...

beneficial. Familiarity with software development methodologies (Agile, Scrum, Devops etc.) and version control. Experience of Cloud infrastructures Azure or AWS. Working experience of API and REST API integrations. Strong analytical and problem-solving skills to identify and mitigate development risks effectively. Experience of development and integration ...