1 to 25 of 121 API Integration Jobs in London

features, building integrations, and enabling smooth deployment of complex software products into client environments. This is a hands-on engineering role focused on writing and maintaining code to support integration pipelines, APIs, and data flows—working as part of a collaborative, high-performing product and engineering team. Location: Central London – minimum 3 days per week onsite Salary … Developer, ideally within a SaaS or cloud-based environment Solid programming skills in at least one modern language (e.g. Python, JavaScript, TypeScript, Java, Go, etc.) Experience designing and building API-driven integrations and working with third-party platforms This company values an excellent academic history so is looking for a 2:1 or above in Computer Science, Engineering, Mathematics … and external technical teams A 2:1 or above in Computer Science, Engineering, Mathematics, or a related STEM subject Responsibilities for Software Integrations Engineer Design, develop and maintain robust integration services and APIs to support customer onboarding and custom deployments Work closely with client-side technical teams to understand integration requirements and build tailored solutions Write clean, scalable More ❯

features, building integrations, and enabling smooth deployment of complex software products into client environments. This is a hands-on engineering role focused on writing and maintaining code to support integration pipelines, APIs, and data flows—working as part of a collaborative, high-performing product and engineering team. Location: Central London – minimum 3 days per week onsite Salary … Developer, ideally within a SaaS or cloud-based environment Solid programming skills in at least one modern language (e.g. Python, JavaScript, TypeScript, Java, Go, etc.) Experience designing and building API-driven integrations and working with third-party platforms This company values an excellent academic history so is looking for a 2:1 or above in Computer Science, Engineering, Mathematics … and external technical teams A 2:1 or above in Computer Science, Engineering, Mathematics, or a related STEM subject Responsibilities for Software Integrations Engineer Design, develop and maintain robust integration services and APIs to support customer onboarding and custom deployments Work closely with client-side technical teams to understand integration requirements and build tailored solutions Write clean, scalable More ❯

business goals and strategic objectives. Architectural Alignment: Ensure alignment with KF architecture and IT standards, principles and patterns and best practices, or highlighting where this is not the case API Integration: Integrate external APIs and other data sources to bring near real-time data and updates into the system. Data: Provide expertise in data modelling, data management and … for CRM deliveries. Security: Ensure the security, privacy, and integrity of all data across the system. Documentation: Create comprehensive technical documentation to support the system's design, implementation, and integration processes (e.g. C4 modelling, document as code with Mermaid/PlantUML). API Integration: Integrate external APIs and other data sources to bring near real-time data More ❯

Proven experience with LangGraph or LangChain Strong Python skills and experience working with LLMs Familiarity with RAG pipelines Experience building chatbots or agent-based systems Knowledge of real-time API integration Understanding of prompt engineering, token limits, and system tuning Bonus: Experience in sports analytics, fantasy sports, or betting tech TO BE CONSIDERED... Please either apply by clicking … online or emailing me directly at KEY SKILLS LangGraph, OpenAI, Python, Chatbots, RAG, Prompt Engineering, LLMs, API Integration, Sports Data More ❯

delivery capability. Participate in workshops, providing quality assurance and gathering requirements to shape project deliverables. Understand the Bank's As-Is Architecture components including processes, capabilities, applications, technologies and integration Formulate and document project artefacts that help to articulate desired direction of travel: oDesign principles and policies oTechnical Requirements (Functional and Non-Functional) oTechnical standards oKey Decisions oSolution briefs … of current developments in architecture and related disciplines, tools and markets Experience in trade lifecycle management technical transformation, including experience with Finastra Summit (Treasury and/or Commercial Lending), integration of treasury systems with finance systems (e.g. S/4HANA), ActiveViam Atoti Business Solutions and solutions built on QuantLib Integration and API Skills: Knowledge of API integration and interfacing technologies Programming skills in one or more languages e.g. Python, Java, SQL Experience in payment systems (incl. experience with SWIFT) Ability to work across various technologies within the specific domain Understanding of different project delivery lifecycle frameworks Strong analytical and problem-solving skills Ability to develop deep business knowledge and offer advice that spans across More ❯

delivery capability. Participate in workshops, providing quality assurance and gathering requirements to shape project deliverables. Understand the Bank's As-Is Architecture components including processes, capabilities, applications, technologies and integration Formulate and document project artefacts that help to articulate desired direction of travel: o Design principles and policies o Technical Requirements (Functional and Non-Functional) o Technical standards o … of current developments in architecture and related disciplines, tools and markets Experience in trade lifecycle management technical transformation, including experience with Finastra Summit (Treasury and/or Commercial Lending), integration of treasury systems with finance systems (e.g. S/4HANA), ActiveViam Atoti Business Solutions and solutions built on QuantLib Integration and API Skills: Knowledge of API integration and interfacing technologies Programming skills in one or more languages e.g. Python, Java, SQL Experience in payment systems (incl. experience with SWIFT) Ability to work across various technologies within the specific domain Understanding of different project delivery lifecycle frameworks Strong analytical and problem-solving skills Ability to develop deep business knowledge and offer advice that spans across More ❯

concurrent applications and services. Skilled in building CLI tools, REST APIs, and interacting with external services. Familiar with go modules, error handling patterns, testing, and code organization. AWS Services & API Integration Deep experience using AWS SDKs in both Python (boto3) and Go (aws-sdk-go-v2) to: Interact with services like EC2, S3, IAM, CloudWatch, and Lambda. Automate … infrastructure provisioning and manage cloud resources. Handle IAM roles, credential management, and secure service integrations. LDAP, Vault, JIRA/Confluence, Kubernetes Integration in Python & Go LDAP: Authentication and user/group management using ldap3 in Python. Experience with enterprise directories such as OpenLDAP and Active Directory. HashiCorp Vault: Secure secret management using the hvac Python client. Automated retrieval and … renewal of secrets and tokens. JIRA & Confluence: Integration using jira and atlassian-python-api for automating tasks, ticket creation, and documentation workflows. Kubernetes: Working with the Kubernetes API in Python using the official kubernetes client. Automation of deployment tasks, pod management, and cluster introspection. Testing & Quality Assurance Python Testing: Experience with pytest, unittest, and mocking tools (unittest.mock More ❯

recognition, document processing, product development and more. You will present your findings to customers alongside sales. Technical integrations: You will work with our product team to assist with the integration of new models and ML-Ops tools into V7. Marketplace Integration: Develop and maintain the integration into major cloud marketplaces so users can more easily set up … short timeframes. You are a skilled multi-tasker and familiar with project management tools like Linear. Who you are: Experience delivering Large Language Model projects with customers, including LLM API integration, up-to-speed knowledge of foundation models, SFT (Supervised Fine-Tuning), prompt engineering, RAG (Retrieval-augmented generation) and/or measuring AI accuracy. Two years + experience More ❯

Agile environment. Experience with the Spring ecosystem and Hibernate. Familiarity with AWS or Azure and DevOps technologies like Docker, Kubernetes, and Terraform. Proficiency in CI/CD pipelines and API integrations. Experience in financial services or banking is a plus. Work from our client's London office. Up to 25 business days of annual leave. Professional development programs, including More ❯

delivery of display and travel ads across Expedia's white-label and partner platforms. We're building the next generation of video ad infrastructure , AI-powered tooling , and Rapid API integrations to deliver smarter, more engaging ad experiences. This is a frontend-heavy full stack role , ideal for engineers who want to grow across the stack while focusing on More ❯

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 ❯

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 ❯

in Azure (e.g., AKS, Azure Functions, Event Hubs). Nice to have: Immediate availability Familiarity with Confluent Platform tools including Schema Registry, Kafka Connect, and KSQL. Previous work in API integration If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn More ❯

Experience with ServiceNow platform: Including modules like ITSM, ITOM, HRSD, CSM, and CMDB. ServiceNow Scripting: Client Scripts, Business Rules, Script Includes, UI Policies, and UI Actions. REST/SOAP API Integration: Building and consuming APIs for third-party integrations. ServiceNow Workflows: Designing and implementing Flow Designer and Legacy Workflow Editor. Service Portal Development: Custom widgets, pages, and themes. More ❯

Experience with ServiceNow platform: Including modules like ITSM, ITOM, HRSD, CSM, and CMDB. ServiceNow Scripting: Client Scripts, Business Rules, Script Includes, UI Policies, and UI Actions. REST/SOAP API Integration: Building and consuming APIs for third-party integrations. ServiceNow Workflows: Designing and implementing Flow Designer and Legacy Workflow Editor. Service Portal Development: Custom widgets, pages, and themes. More ❯

Experience with ServiceNow platform: Including modules like ITSM, ITOM, HRSD, CSM, and CMDB. ServiceNow Scripting : Client Scripts, Business Rules, Script Includes, UI Policies, and UI Actions. REST/SOAP API Integration : Building and consuming APIs for third-party integrations. ServiceNow Workflows : Designing and implementing Flow Designer and legacy Workflow Editor. Service Portal Development : Custom widgets, pages, and themes. More ❯

Experience with ServiceNow platform: Including modules like ITSM, ITOM, HRSD, CSM, and CMDB. ServiceNow Scripting : Client Scripts, Business Rules, Script Includes, UI Policies, and UI Actions. REST/SOAP API Integration : Building and consuming APIs for third-party integrations. ServiceNow Workflows : Designing and implementing Flow Designer and legacy Workflow Editor. Service Portal Development : Custom widgets, pages, and themes. More ❯

applications, especially within Agile financial environments . If you're passionate about building secure, scalable, and high-performing solutions and have strong experience in Java, Spring Boot, MuleSoft, and API integration , we’d love to hear from you! Key Responsibilities: Build and enhance platforms using Java, Spring Boot, and MuleSoft or equivalent integration tools. Develop and manage More ❯

and adoption of these solutions across the firm. YOU'RE GOOD AT AI application and innovation Designing and building custom GPT agents using platforms like OpenAI's GPTs or API, including prompt engineering, file and API integration, and instruction fine-tuning for specific learning contexts Understanding AI and LLM fundamentals (e.g., model behavior, token limits, embeddings, prompt More ❯

and custom module development. Proficient in front-end technologies such as HTML, CSS (SASS/LESS), and modern JS frameworks (React, Vue.js, etc.). Understanding of RESTful services and API integrations. Version control using Git (GitHub/GitLab/Bitbucket). Experience working in Agile environments. Knowledge of web security best practices and performance optimization. More ❯

teams to align internal tooling with evolving compliance needs and operational goals. Qualifications (Text Only) Required Qualifications: - Demonstrated experience deploying automation for security operations (SOAR platforms, script-based playbooks, API integrations). - Experience in security engineering, automation, or software engineering, preferably in cloud-native or regulated environments. - Strong programming/scripting skills (Python preferred) with a focus on infrastructure More ❯

in modern web development technologies: TypeScript, ReactJS, NextJS, and NodeJS. Experience working with CSS, component libraries and design systems (ChakraUI, Tailwind or similar). Some knowledge of GraphQL for API development and integration. Proficiency with Docker and containerisation. A continuous learning mindset and adaptability in a fast-paced, evolving startup environment. Genuine excitement at the opportunity to work on More ❯

base management and optimisation Strong communication and change management skills Data-driven approach to problem-solving and decision-making Nice-to-Haves Experience in e-commerce environment Understanding of API integrations and system connectivity Understanding of Shopify ecosystem Background in support transformation or restructuring Experience with distributed team management Our Culture: Results-Driven Excellence We reward exceptional performance and More ❯

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 ❯

standards. Integrate RESTful or GraphQL APIs and handle client-server communication securely. Implement CI/CD pipelines and collaborate with DevOps for deployment and monitoring. Write automated unit and integration tests to ensure code reliability. Work closely with UX/UI designers, product managers, and other developers to define and deliver quality features. Troubleshoot, debug, and optimize performance across … technologies relevant to the role, especially within the Appwrite ecosystem. Requirements 3+ years of experience in full stack development. Hands-on experience with backend platforms or services, including setup, API integration, database management, and serverless/cloud functions. Proficiency in at least one modern frontend framework: React, Vue.js, or Angular. Experience with Node.js, Express, or similar backend runtimes. … Familiarity with Docker, Kubernetes, serverless environments, and container orchestration (optional but a plus). Experience with Git/GitHub and agile development workflows. Strong understanding of RESTful API design, authentication mechanisms (OAuth, JWT), and security best practices. Excellent problem-solving skills and a proactive mindset. 100% Remote Our entire company is distributed, so we take remote work seriously. If More ❯