26 to 50 of 104 API Development Jobs in London

expert in generative AI and financial technology We'll Count on You To: Design and build transformative ML systems – Lead the development of advanced generative AI solutions, agentic workflows, RAG architectures, and intelligent platforms using PyTorch, modern ML frameworks, and large language models; write production-quality code that scales … understanding of MLOps, containerization (Docker, Kubernetes/AWS EKS), cloud platforms (AWS/Azure including Bedrock, SageMaker, Azure AI Search), workflow orchestration (Airflow), and API development for ML systems Software development fundamentals – Deep understanding of automated testing, source version control, code optimization, software architecture, and building scalable ...

throughout the project lifecycle. Testing & Quality Assurance Write and maintain unit, integration, and end-to-end tests for both backend (Python/Celery/API) and front-end (React) code. Validate asynchronous task pipelines for correctness, idempotency, retry behavior, and failure handling. Participate in code reviews, ensuring adherence … User Acceptance Testing) cycles, working with end users to validate functionality before release. Delivery Own features end-to-end - from requirements and design through development, testing, deployment, and post-release support. Work within agile/iterative delivery frameworks, participating in sprint planning, stand-ups, and retrospectives. Deploy and support ...

opportunity to extend into quantitative research and to help build the foundation for full stack, next gen SaaS service offerings. Key Responsibilities: Bulletproof script development: build reliable, production grade scripts from defined specifications. Data orchestration and integration: develop and own the orchestration scripts that integrate multiple data feeds (document … that turn financial filings and disclosures into structured, queryable data, including LLM assisted extraction where appropriate. Testing to production migration: own the path from development to production, testing rigorously in a staging environment before migrating scripts to the production server with proper versioning, rollback capability and zero disruption ...

knowledge (you don't need everything) We appreciate you may not be an expert in every area above - we can support with training and development in some areas! JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation ...

scalable cloud services, quantitative analytics and emerging AI-powered workflows.What You'll Be Responsible ForDesigning, building, testing, deploying and supporting software across the full development lifecycle.Developing front-end applications using TypeScript, React and Redux.Building back-end services using Java, Node.js and REST APIs.Developing analytics and data processing components using … TypeScript/JavaScript, Java and Python.Experience with React, Redux and Node.js.Experience building Java services using frameworks such as Spring Boot.Strong understanding of software design, API development and data modelling.Experience with automated testing and modern testing frameworks.Ability to take ownership of features from design through production.Preferred ExperienceExperience with cloud ...

services, quantitative analytics and emerging AI‐powered workflows. What You’ll Be Responsible For Designing, building, testing, deploying and supporting software across the full development lifecycle. Developing front‐end applications using TypeScript, React and Redux. Building back‐end services using Java, Node.js and REST APIs. Developing analytics and data … Java and Python. Experience with React, Redux and Node.js. Experience building Java services using frameworks such as Spring Boot. Strong understanding of software design, API development and data modelling. Experience with automated testing and modern testing frameworks. Ability to take ownership of features from design through production. Preferred ...

rapidly growing company in the blockchain and cryptocurrency space. They are seeking a talented Engineering Lead who will not only guide and mentor the development team but also contribute directly to the codebase. In this role, you will shape the technical direction , help build cutting-edge products, and work … fintech, this is the perfect opportunity to lead and grow in a forward-thinking company at the forefront of digital transformation. Responsibilities Hands-On Development: Collaborate with the team to design, build, and deploy robust APIs and frontends for iOS, Android, and web platforms, delivering high-quality solutions across ...

improve these products and services in a secure, scalable and user-focused way. We have an exciting opportunity for a front-end focused Software Development Engineer to support the growth of a recently established central development team within the Digital Services department. As the third member … experiences for colleagues and clients, contributing both to solutions originating within the team and to new innovations that transition into the team for ongoing development and maintenance You will bring experience of building polished, reliable and client-focused web applications using Vue and TypeScript, together with sound UX judgement ...

with Research, Product, and Engineering to rapidly prototype, test, and refine new capabilities through short feedback loops. Take solutions from prototype to production, including API development, CI/CD pipelines using GitHub Actions, and Kubernetes deployments across multiple environments using core AWS services such … Platform & Systems Self‐Sufficiency This is you if you're comfortable owning infrastructure end‐to‐end — deploying a database, designing a schema, shipping an API — without a dedicated platform or DevOps team.* Experience designing APIs and deploying containerized services using Docker and Kubernetes. Bonus: Experience with graph‐aware retrieval ...

integration, E2E, security) and performance optimization; Scalable system design patterns, load balancing, and high-availability architectures; Database design and optimization (both relational and NoSQL); API development (REST, GraphQL, gRPC) and event-driven architectures; Caching strategies and message queue systems (Redis, Kafka, RabbitMQ); Cloud platforms (AWS, Azure, GCP) with ...

practices to build robust systems and contribute to high‐quality project outcomes. You will be responsible for producing clean, maintainable code using modern software development techniques and tools (such as Git), and work on backend APIs and data engineering pipelines with a focus on reliability and efficiency. Your role … will involve supporting cloud deployment, utilising Docker and Linux as part of the development and deployment process. We’re looking for someone with a co‐operative, can‐do attitude who can build high‐quality data engineering solutions. If this sounds like you, we can’t wait to hear from ...

delivering successful digital banking projects. Technical Skills: Proficiency in modern programming languages and frameworks (e.g., Java, .NET, Angular, React). Strong understanding of API development, microservices architecture, and cloud-based deployments (AWS, Azure, or GCP). Extensive experience with Sandstone Technology's BXP, including customization and integration capabilities. ...

Platforms: responsible for the measurement and management of the firm’s risk, capital, and liquidity for The Core functionsThe Core Strats: responsible for the development and implementation of models and other quantitative methodologies, including the accuracy and attribution of modeled metricsFinancials & Reporting: responsible for facilitating the production … high-quality software, and a mindset of relentless improvement will all be key to your success in this role.ResponsibilitiesHands-on end-to-end systems development in an Agile environment, from requirements analysis through coding, testing, UAT, implementation and maintenance.Partner with Finance stakeholders to understand business needs and translate them ...

about more than a lift-and-shift — it's about rearchitecting how companies build, deploy, and scale software. From containerized microservices on GKE to API-first architectures on Apigee to AI-augmented development with Gemini Code Assist, we help clients transform their application estates into modern, cloud-native … Google Cloud domains: Data & AI Build data pipelines and analytics solutions using BigQuery, Dataflow, and Looker. Generative & Agentic AI Contribute to the design and development of AI solutions using Vertex AI, Gemini models, and Retrieval-Augmented Generation (RAG). Security Operations (SecOps) & Cyber Defense Design and build solutions that ...

about more than a lift-and-shift — it's about rearchitecting how companies build, deploy, and scale software. From containerized microservices on GKE to API-first architectures on Apigee to AI-augmented development with Gemini Code Assist, we help clients transform their application estates into modern, cloud-native … Google Cloud domains: Data & AI: Build data pipelines and analytics solutions using BigQuery, Dataflow, and Looker. Generative & Agentic AI: Contribute to the design and development of AI solutions using Vertex AI, Gemini models, and Retrieval-Augmented Generation (RAG). Security Operations (SecOps) & Cyber Defense: Design and build solutions that ...

network automation. Whilst the team has extensive expertise in network engineering and automation, we are seeking a software-focused engineer who can strengthen development standards, tooling, and automation capability across the function.You will help transition network operations toward a software-defined approach by introducing robust software engineering practices including … testing and deployment.Develop and enhance Ansible playbooks and roles to improve network automation reliability and scalability.Support and mentor colleagues in software engineering methodologies and development practices.Drive innovation across network infrastructure management through automation and DevOps principles.This is a unique opportunity to work with cutting-edge networking and automation technologies ...

Department/Division : Business Technology Duration : Permanent Reports to :IT Development Manger Type of Role : Hybrid Budget Responsibilities : No Reference number : 10740 The Role Reporting to the IT Development Manager, with a dotted line to the Director of Helix, you will be a senior, experienced AI Engineer … based systems, with particular attention to legal accuracy, confidentiality, security, provenance and responsible use. Platforms and technical delivery: Use approved OpenAI capabilities, including relevant API, Skills and Work capabilities, alongside FleetAI and other approved platforms where they best meet the use case and governance requirements. Build production-minded back ...

shopping through AI and technology. We are looking for an experienced Senior Full-stack Engineer to join our Shop Experience team within the Product Development tribe. You will play a key role in shaping seamless, trustworthy, and high-performing shopping experiences for millions of users around the world. … product experiences are built by collaborative teams with strong technical foundations and a deep understanding of user needs. You will focus on: Full-stack Development: You will design, build, and evolve scalable web applications and backend services using React, TypeScript, and Python (Django). You’ll contribute across ...

throughput applications Low-latency engineering experience Strong analytical and mathematical problem-solving ability Experience with cloud platforms, ideally GCP Docker/containerisation experience REST API development experience Experience with event-driven architecture or messaging Exposure to AI, machine learning or AI-enabled systems Strong understanding of performance, reliability ...

considered for this role you must have: 2+ years of related professional software engineering work experience. Understanding of client-server interactions and REST API development and deployment. Strong knowledge of backend technologies, including Node.js, NoSQL/SQL databases, or BaaS. Some experience of hosting applications with ...

operations, including containerization (Docker, Kubernetes/AWS EKS), cloud platforms (AWS/Azure), workflow orchestration (Airflow), automated testing for ML systems, and API development for model deployment Technical leadership and influence - Track record of mentoring and coaching engineers, driving ML initiatives in fast-moving environments, leading through technical ...

IR35 Must have right to work in the UK and be based near London. Senior Platform Engineer (Cloud Media Platforms) providing technical design and development/implementation of systems that industrialise media workflows. Acting as the primary technical authority for Cloud NAS integration, media ingest pipelines, & automated metadata scripting. … similar workflows is required. You will need strong Cloud DevOps skill set, hands on scripting of either Python, Go, or Node.js for automation and API development, hands‐on expertise with AWS (preferred) or GCP and Infrastructure as Code (Terraform) etc Job Description Main Responsibilities Lead the architecture ...

work in short cycles: build something, put it in front of users, and turn what works into capabilities others can reuse.This role combines software development and analytics. You will build products on certified metrics, data, and AI, and work closely with the people who use them. It could suit … build it.In this role, you will:Design, develop, test, and maintain reliable software solutions for analytics products, contributing across the full software development lifecycle.Apply system design, low-level design, API design, and data modelling practices to build scalable, maintainable services and product capabilities that both people ...

short cycles: build something, put it in front of users, and turn what works into capabilities others can reuse. This role combines software development and analytics. You will build products on certified metrics, data, and AI, and work closely with the people who use them. It could suit … build it. In this role, you will: Design, develop, test, and maintain reliable software solutions for analytics products, contributing across the full software development lifecycle. Apply system design, low-level design, API design, and data modelling practices to build scalable, maintainable services and product capabilities that both people ...

short cycles: build something, put it in front of users, and turn what works into capabilities others can reuse. This role combines software development and analytics. You will build products on certified metrics, data, and AI, and work closely with the people who use them. It could suit … build it. In this role, you will: Design, develop, test, and maintain reliable software solutions for analytics products, contributing across the full software development lifecycle. Apply system design, low-level design, API design, and data modelling practices to build scalable, maintainable services and product capabilities that both people ...