1 to 25 of 34 API Development Jobs in London

experience in Node.js , C#/.NET Core , and Vue 3 . You’re well-versed in cloud platforms ( Google Cloud is essential ), have strong API development skills, and are experienced with payment platform integrations (e.g., Stripe , PayPal ). Experience with multi-tenant platforms is a must Your Role …/.NET Core , and Vue 3 . Strong experience in cloud platforms , preferably Google Cloud (AWS/Azure experience is welcomed). Expertise in API development and experience with payment platform integrations (e.g., Stripe , PayPal ). Solid understanding of cloud-native architecture and scalability . Experience with building ...

tools, scripts, and benchmarks to automate AI/ML security testing Perform secure code reviews and penetration testing of AI-related software Research and Development Research emerging threats, trends, and best practices in AI/ML security Deliver proof-of-concepts and proof-of-value initiatives to assess … technologies and controls Contribute to the development of advanced AI/ML security tools and techniques Produce high-quality technical documentation and user guidance Security Engineering and Collaboration Provide subject matter expertise on security engineering patterns and controls Support secure software development practices aligned to OWASP and DevSecOps ...

chance to work with a leading global IT and Digital transformation business specialising in Government projects: Key experience, responsibilities + tasks: Strong Python development expertise , develop and maintain Python code for data processing, API development and integration with the Azure Databricks environment. Senior experience in software development, with a focus on both front-end and back-end development. Front-end development using React, Angular, Vue.js, Front-end and back-end development of applications and APIs interacting with the Azure Databricks platform. Experience with Azure cloud platform and services. Azure Databricks. containerisation (Docker) and orchestration ...

Implementing CI/CD pipelines (GitHub Actions, GitLab, Jenkins, ArgoCD) • Shipping production-grade cloud-native applications 🎯 What We’re Looking For 👉 Strong Python backend development experience 👉 API development (FastAPI highly desirable) 👉 Solid SQL/PostgreSQL knowledge 👉 AWS experience (EKS ideal) 👉 Kubernetes deployment experience 👉 Terraform (Infrastructure as Code ...

Implementing CI/CD pipelines (GitHub Actions, GitLab, Jenkins, ArgoCD) • Shipping production-grade cloud-native applications 🎯 𝗪𝗵𝗮𝘁 𝗪𝗲’𝗿𝗲 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗙𝗼𝗿 👉 Strong Python backend development experience 👉 API development (FastAPI highly desirable) 👉 Solid SQL/PostgreSQL knowledge 👉 AWS experience (EKS ideal) 👉 Kubernetes deployment experience 👉 Terraform (Infrastructure as Code ...

procedures and to modernise systems and practices so that they can deliver quality at pace. Currently the team are transitioning from traditional software application development using C#, Blazer and SQL Server integrating with Dynamics Business Central, and the Data team provide analytics and insights using SAS, MicroStrategy and Power … Engineers, an Automation Tester, Scrum Master, DevOps, Infra Engineers and Service Desk Team. You need to have experience of leading end to end software development including design, build, testing, deployment and support. The Service Desk team need to work closely with the build and deployment resources so that they ...

About the Role: Active SC We are seeking a highly skilled and versatile Senior Developer to join our team andcontribute to the development and maintenance of our cutting-edge Azure Databricksplatform for economic data. This platform is critical for our Monetary Analysis, Forecasting,and Modelling activities. The Senior Developer … will be responsible for both Front End and Back End development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming ...

IR35 - Umbrella only About the Role: We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. … Senior Developer will be responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with ...

mobile, and client-server applications. This role requires maintaining existing applications, enhancing their functionality to meet evolving business needs, and expertise in the development, maintenance, and administration of SharePoint environments, both on-premise and cloud-based, ensuring optimal performance, security, and scalability. A deep understanding of development lifecycles … system stability and minimize business disruptions. Responsibilities include, but are not limited to: Analyze business requirements to determine the most effective solution strategy; custom development, evaluating software, or modifying existing solutions; to deliver functional and efficient results. Design, develop, and maintain customASP/MVC.NET web applications and SharePoint solutions. ...

React, Node.js, Terraform or Celery Strong database design and optimisation experience If you’re a Senior Engineer looking for a role combining hands-on development, technical ownership, and real-world impact, this is worth a conversation. Hit apply today! Keywords Senior Software Engineer, Python Developer, Django, Flask, JavaScript, TypeScript … React, Node.js, AWS, Azure, GCP, Cloud Engineer, Backend Developer, Full Stack Developer, Microservices, API Development, CI/CD, DevOps, Terraform, Celery, Data Engineering, Renewable Energy Tech, Technical Leadership, Software Architecture, Scalable Systems, Leeds Jobs, London Jobs, Hybrid Jobs, Tech Jobs ...

Improved performance and reliability of key product areas Helped shape engineering practices around code quality, testing, and maintainability Tech Stack: TypeScript/JavaScript Node.js (API development) React, Next.js AWS Serverless (Lambda, API Gateway) Vercel SQL Server Algolia CI/CD (TeamCity) You Might Be a Good ...

financial markets environment. This is a true player-coach role - leading a high-performing Agile team while remaining actively involved in architecture, design, and development of distributed, cloud-native systems supporting Rates & FX platforms. Key Skills Required: Strong C#/.NET Core expertise Experience with distributed, event-driven, cloud … native architectures REST/GraphQL API development AWS or Azure cloud deployment Relational databases (MSSQL/MySQL) Proven experience leading engineering teams in Agile environments Exposure to trading systems, FIX protocol, WPF, microservices, or serverless architecture is highly desirable. If you're a delivery-focused technical leader ...

value autonomy, speed, and impact. Stack: Build with modern tools — Python, FastAPI, TypeScript, LLMs, MLOps What We’re Looking For 2+ years of software development experience Proven track record of building and shipping full-stack products in fast-paced, product-driven teams Hands-on experience building production AI systems … etc.), integrated into real user workflows Familiarity with MLOps tools and CI/CD for both traditional and ML-driven systems Strong backend and API development skills - comfortable owning systems end-to-end, from data pipelines to user-facing interfaces Passion for building clean, usable products that solve ...

pipelines supporting real-time and batch processing for AI agents. Contribute to the technical implementation of agent systems using frameworks such as Google AI Development Kit (ADK) or comparable technologies. Develop and maintain client libraries for secure collaboration between data systems, agents, and internal platforms. Implement data-centric agent … patterns and integrate agents with existing enterprise systems. Conduct continuous testing and validation of data integrations and pipelines throughout the development lifecycle. Incorporate feedback loops to ensure data quality, system reliability, and operational scalability. Professional Experience 5–7 years of experience as a Software Engineer or Data Engineer. Minimum ...

Senior Backend Engineer/Head of Backend Development (Python/AWS) Fintech | NYC (Remote) | No C2C | Full-time role Compensation : £90,000–£120,000 (negotiable for star talent upon tech test) We are working with a well-funded fintech platform transforming how complex financial data flows across global markets. … tier-one financial institutions. You will primarily work in Python and AWS, building robust APIs and scalable data pipelines. This is not simply CRUD API development; it involves architecting high-trust systems with strong multi-tenant boundaries, regional data controls, and secure cloud infrastructure. The process includes ...

Software Engineering with strong applied AI experience Deep expertise in GCP (Vertex AI, BigQuery, Cloud Run/Functions, ADK, Model Garden) Strong Python and API development experience Hands‐on with LLMs, embeddings, RAG, vector databases Proven track record building production‐ready AI systems with observability and testing Solid ...

engineering with clear documentation and stakeholder collaboration. Your Skills and Experience To be successful, you will bring: • Strong Python skills for backend services, SDKs, API development, authentication and testing. • Hands‐on experience working with LLMs, embeddings, prompt engineering, tool calling and RAG design. • Practical knowledge of GCP services ...

sponsorship Build innovative data solutions across multiple platforms and technologies for leading clients Lead technical project delivery whilst mentoring junior consultants and shaping their development Work with cutting-edge tools including Azure Data Factory, Databricks, and cloud data platforms Collaborate with clients on solution architecture, consulting on approach … approach Develop machine learning and AI solutions that add value and drive business insight Mentor and manage junior consultants, supporting their technical and professional development Contribute to pre-sales activities, delivering product demonstrations and building client credibility Ensure information security standards are maintained for the consultancy and its clients ...

enabled payment solutions. The role requires someone who can engage with business stakeholders, design AI-driven architectures, and also contribute hands-on to development and deployment, particularly in AI MLOps environments. This is not a pure data scientist role or a pure BA role but a design + build … handling AML pattern detection Define model selection approach (ML, LLM, GenAI, rule-based hybrid models) Design scalable, cloud-native AI architectures 3. Hands-on Development Develop ML models/AI workflows using Python and relevant frameworks Build APIs and integration layers for embedding AI into payments systems Work with ...

unlock new revenue streams. 💻 The Role You’ll play a key part in building and scaling a modern fintech platform, working across: Backend: Node.js (API development & scalable services) Frontend: React Native (iOS & Android apps) Database: MongoDB CI/CD, Git, and clean coding best practices You’ll collaborate ...

seeking a skilled Java Developer to join our engineering team and contribute to the design, development, and maintenance of high-quality, scalable software solutions. The ideal candidate has strong experience in core Java, modern frameworks, API development, and cloud-based architectures. You will work closely with product ...

partnering with ONE Data to recruit a Data Engineer to join their mission to build the world's first public finance and development data tool. Who are we? ONE Data is an initiative of The ONE Campaign focused on transforming how public finance and development data is accessed … high-quality, evidence-based decisions lead to greater economic opportunity and healthier lives. Our mission is to organise the world’s public finance and development data and make it universally accessible and useful - collapsing the time from raw data to actionable insight. By building open, interoperable data infrastructure ...

hybrid 8-12 month contract paying £500 - £550 per day inside IR35, (2-3 days in the office) This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect scalable … Capital Markets. As a Senior Lead Analyst, you will: Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. Act as a thought leader ...

experience leading engineering teams in an Agile environment Strong expertise in C# and modern .NET/.NET Core Experience building distributed, event-driven systems API design and development (REST, GraphQL) Relational databases (SQL Server, MySQL, or similar) Cloud platforms such as AWS or Azure Solid understanding … full software development lifecycle Pragmatic, delivery-focused approach with strong communication skills Location & Package Location: London Working Pattern: Hybrid - 3 days per week in the office Salary: Up to £125,000 base + bonus and benefits McGregor Boyall is an equal opportunity employer and do not discriminate ...

data pipelines to feed real time trading and research systems. Implement data quality checks, anomaly detection and monitoring frameworks. Build and maintain high performance API's to expose market and reference data to trading, research and analytics platforms. Who you are: 3+ years in Data Engineering … performance, time sensitive environments. Strong Python proficiency, including exposure to libraries such as Pandas, Arrow, and Spark. Strong grasp of data modelling, normalization and API development for large scale analytical or trading systems. Experience with lakehouse architectures (Databricks ideally, or Delta Lake). Exposure to real time ...