1 to 25 of 32 API Development Jobs in London

services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking.On behalf of this organisation, AMS are looking for an API Backend Engineer (MCP) for a 6 Months contract based in Edinburgh or London (Hybrid). Purpose of the Role: As API Backend Engineer … will be responsible for designing, building, and operating secure, scalable APIs and backend services in cloud-native environments. The role centres on API development using modern API gateways on AWS or GCP, applying API standards, DevSecOps, and industry best practices, and delivering solutions within SCRUM agile ...

21st century. We are seeking a Software Engineer to join a dedicated niche team delivering and evolving our clients' technology platforms. Entailing full lifecycle development to help design, build, and refine their systems that keep production workflows running smoothly and efficiently. About the role and responsibilities: Experience with project … Hands-on experience with Airtable or comparable project management platforms Workflow automation: Proven experience designing and implementing automated workflows to drive operational efficiency Scripting & API development: Proficiency in scripting languages such as JavaScript or Python, with experience building or consuming APIs Engineering methodologies: Clear understanding of engineering project ...

though also like the idea of the equally important social/client-facing aspect of the role. The role is responsible for defining the development architecture across a blend of in-house bespoke solutions and 3rdparty products and helping to shape the longer-term strategic development architecture … developing architecture strategy and target architecture model. You will be working closely with delivery team members to coach and promote best-practice solution development architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority ...

within an agile delivery team, building and enhancing modern, cloud-native applications used by thousands of end users. This role requires strong full-stack development expertise across .NET, Vue.js and Azure, alongside previous experience delivering solutions within Government, NHS, or wider public sector environments. Key Responsibilities Design, develop … security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure Functions Azure ...

within an agile delivery team, building and enhancing modern, cloud-native applications used by thousands of end users. This role requires strong full-stack development expertise across .NET, Vue.js and Azure, alongside previous experience delivering solutions within Government, NHS, or wider public sector environments. Key Responsibilities Design, develop … security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure Functions Azure ...

within an agile delivery team, building and enhancing modern, cloud-native applications used by thousands of end users. This role requires strong full-stack development expertise across .NET, Vue.js and Azure, alongside previous experience delivering solutions within Government, NHS, or wider public sector environments. Key Responsibilities Design, develop … security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure Functions Azure ...

reusable architectures in collaboration with business stakeholders and IT teams while ensuring alignment with enterprise architecture standards. Develop the standards and patterns for application development across a series of different technology disciplines including: quality profiles, coding standards, configuration standards and unit testing. Review high-level designs with technical leads … trends to identify the business benefits of alternative technical solutions. Support the requirements gathering process to right-size initiatives and solution strategy. Collaborate with development teams and assist with the application of Agile and DevSecOps techniques within architecture and designs. Create comprehensive architecture specification documents and other required documentation. ...

Product Catalogue, CRM (Salesforce), Billing, Service Orchestration, Inventory, Service Assurance - understanding data models, system processes and integration patterns at implementation level - Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks - Lead-to-Cash (L2C) and Order … Cash (O2C) solutions in Tier-1 telecom operator environments - TMF standards: Product Ordering (TMF641), Service Ordering, Service Activation, Service Inventory (TMF638) API Development & Integration - Strong expertise in API lifecycle design using OpenAPI specifications (OAS) - can read and write API specs - Hands-on with TMF/ ...

working on backend services hosted in Azure. The role focuses on building and supporting Java applications and APIs, using VS Code as a primary development environment. You'll work closely with other engineers across backend, frontend, and DevOps, contributing to cloud-based systems. About the role Java backend development … with frontend, QA and DevOps teams Participate in code reviews and technical discussions Required skills Strong commercial Java experience Spring/Spring Boot REST API development Azure experience (App Services, AKS, or similar) VS Code for day-to-day development Git and version control Experience with relational ...

hire an Applications Developer into their London team. This is a strong fit for someone with deep Microsoft stack experience, particularly around SharePoint development and ASP.NET applications within enterprise environments. The role will focus on designing, developing, and supporting internal business applications and collaboration platforms across both on-prem … cloud-based environments. Key areas include: • SharePoint 2016/2019/SE & SharePoint Online development and administration • ASP.NET MVC/ASP.NET Core MVC application development • C# and Web API development • SQL Server, Entity Framework & SSRS • Power Platform (PowerApps/Power Automate) • Front-end technologies including React ...

drive engineering modernisation, cloud adoption, and scalable analytics capabilities within a fast-paced financial environment. You will play a key role in the design, development, and enhancement of enterprise-grade investment and credit trading technology solutions. The role combines hands-on engineering with modern cloud-native delivery practices, automation … assisted software development approaches Responsibilities include: * Develop and enhance full-stack applications supporting investment and trading workflows * Build and optimise cloud-based data platforms and pipelines using Snowflake and DBT * Deliver reporting and analytics solutions using Sigma and Power BI * Support .NET application modernisation and API development ...

maintainable code Working with shared/common government tech stacks (Node.js, PostgreSQL, Redis) Investigating and resolving technical issues across the stack Applying secure development practices, including OWASP principles and vulnerability management Collaborating with stakeholders and communicating technical concepts clearly Tech stack includes: Node.js, HAPI (web framework) API development … DevOps, Jenkins, GitHub Actions) Jira and Azure DevOps for workflow management What we're looking for: Active SC Clearance (essential) Strong experience with Node.js development in production environments Ability to communicate with both technical and non-technical stakeholders Experience breaking down work, refining backlog items, and defining acceptance criteria ...

join our engineering team. This role offers the opportunity to work on scalable systems, modern applications, and cloud-based infrastructure while contributing to the development of innovative digital products and services. As part of a collaborative Agile team, you will work closely with engineers, product managers, designers, and other … technical design, architecture, and solution planning activities. Collaborate with cross-functional teams to deliver projects and product enhancements. Troubleshoot, diagnose, and resolve issues across development and production environments. Promote high standards of code quality, testing, and engineering best practice. Participate in Agile ceremonies and contribute to continuous improvement initiatives. ...

join our engineering team. This role offers the opportunity to work on scalable systems, modern applications, and cloud-based infrastructure while contributing to the development of innovative digital products and services. As part of a collaborative Agile team, you will work closely with engineers, product managers, designers, and other … technical design, architecture, and solution planning activities. Collaborate with cross-functional teams to deliver projects and product enhancements. Troubleshoot, diagnose, and resolve issues across development and production environments. Promote high standards of code quality, testing, and engineering best practice. Participate in Agile ceremonies and contribute to continuous improvement initiatives. ...

LlamaIndex, Hugging Face), and vector databases (e.g., Pinecone, Qdrant, Milvus, Chroma). Software Fundamentals: Background in solid software engineering practices (Git, testing, design patterns, API development via FastAPI/Flask). Cloud Infrastructure: Experience deploying to secure cloud environments (AWS, Azure, or GCP) utilizing standard K8s distributions ...

Full Stack Engineer, Software Engineer or Product Engineer Strong experience with TypeScript in production environments Strong knowledge of React and modern frontend development Experience building backend services with Node.js Experience working on SaaS products, B2B software or high growth technology platforms Strong understanding of API design, databases … highly desirable What’s On Offer 💰 Market leading salary 📈 Meaningful equity package 🏥 Private healthcare, dental and vision cover 👶 Enhanced parental leave 📚 Learning and development budget 💻 MacBook and home office equipment 🎉 Quarterly company events and offsites 🌴 25 days holiday plus bank holidays 🚀 Opportunity to work alongside an exceptional team ...

Agentic AI tooling and orchestration frameworks LangChain/LangGraph PyTorch and ML libraries REST APIs Docker and containerisation CI/CD pipelines Git-based development workflows What we're looking for 4-6 years' experience within Software Engineering, AI Engineering, or Machine Learning Engineering roles Strong hands-on Python … engineering practices Exposure to Agentic AI frameworks or autonomous AI workflows Experience working with Azure and Databricks Good understanding of backend engineering and API development Experience collaborating across cross-functional engineering and product teams Ability to mentor or support junior engineers Strong communication and problem-solving skills Package ...

life sciences and pharmaceutical organisations modernise and scale their statistical modelling capabilities. This role combines statistical expertise with modern data engineering practices, enabling the development of robust, reproducible, and production-ready analytical solutions. You'll work closely with biostatisticians, data scientists, and technical stakeholders to improve modelling approaches … complex statistical concepts into practical business and technical solutions Skills & Experience Essential Strong statistical background, ideally within Biostatistics Advanced R programming skills, including package development Experience with Git and collaborative development workflows Knowledge of CI/CD pipelines, automated testing, and software engineering best practices Strong understanding ...

Applied AI engineering, ML engineering or software engineering background Experience with LLMs, RAG, embeddings, prompt engineering or fine tuning Exposure to LangChain, LangGraph, Agent Development Kit or similar agent frameworks Experience with vector databases such as Pinecone, Chroma or similar API development experience, ideally with FastAPI ...

based - once a week in London Role Hands-on backend developer building and integrating Python-based services within a secure, enterprise environment. Focus on API development, system integration, and reliable delivery. Key Responsibilities Build backend services using Python (FastAPI) Develop APIs and integrate across disconnected systems Deploy solutions ...

based - once a week in London Role Hands-on backend developer building and integrating Python-based services within a secure, enterprise environment. Focus on API development, system integration, and reliable delivery. Key Responsibilities Build backend services using Python (FastAPI) Develop APIs and integrate across disconnected systems Deploy solutions ...

automation pipelines and network environments Create clear and concise technical documentation Contribute to evolving automation standards and best practices What Were Looking For Automation & Development Strong Python skills, including API development, integration, and testing Experience writing high-quality, testable code and participating in code reviews Hands ...

considering: We are looking for a skilled Generative AI Developer to join our Controls Technology team and contribute to the development and integration of innovative generative AI solutions In this role youll work closely with senior developers AI architects and business stakeholders to deliver impactful AIdriven features and products. … time. Your Role: Implement and finetune generative AI models under the guidance of senior team members Contribute to prompt engineering and development of Ai powered workflows Assist with the deployment monitoring and maintenance of AI models in production environments Collaborate with data scientists and engineers to ensure seamless integration ...

leverage external tools. Familiarity with agentic SDKs (ADK, LangChain, LlamaIndex, etc.) Proven track record of deploying AI applications into production environments Strong understanding of API development, microservices, and containerization (Docker, Kubernetes) Knowledge of MLOps best practices Excellent problem-solving skills and ability to work in a fast-paced ...

custom solutions with third-party and enterprise systems Leading project delivery and mentoring junior team members What you'll need 3+ years in software development with strong SharePoint, SQL Server, and .NET experience Solid C# skills web API development, Entity Framework, MVC SharePoint across multiple versions ...