76 to 100 of 220 API Design Jobs in London

Role You will be responsible for creating enterprise-quality AI, ML, and Data Science based solutions. You will be involved in technology selection, API design, and establishing core patterns within our products and client projects. You will consider the functional and non-functional requirements to inform these decisions … quality solutions, with extensive experience and familiarity with how enterprise software solutions fit into a wider technical landscape Having a solid understanding of traditional Design Patterns and the ability to adapt these to the AI world Being a strong proponent for rigorous quality processes, automated testing and IaC principles ...

organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Key Responsibilities Drive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations. Remain hands-on with software architecture, system design, code … containers, microservices and event-driven architectures. Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering. Strong knowledge of SQL and NoSQL technologies, API design and integration patterns. Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations. Growth ...

degree in computer science or equivalent degree. - Strong programming proficiency in Python and familiarity with Java/Kotlin, with a solid understanding of API design, development and integration patterns LLM and Generative AI Expertise Experience with frameworks such as LangChain, LangGraph, and APIs from OpenAI, Anthropic, etc. Demonstrated ...

hands-on delivery role. We're looking for someone operating at a Staff or Principal level who is product-minded, enterprising, and ready to design and build. You'll work on our core product and tackle exciting engineering challenges across extraction, workflow orchestration, human-in-the-loop review, evaluation … production reliability. What you will be doing: Design, build and ship production-grade agentic AI systems that handle data-driven underwriting and portfolio management tasks end-to-end, taking accountability for delivery from design through to running in production. Build and evolve the project's evaluation and observability ...

native adoption, and AI-assisted development practices. The Role As Lead Application Architect, you'll take ownership of application-level architecture and low-level design, helping to establish development standards and modern engineering practices across the organisation. Key responsibilities include: Producing component-level and code-level designs and detailed … Level Design (LLD) documentation Translating high-level architectural designs into clear implementation plans for development teams Creating and maintaining Architecture Decision Records (ADRs) and facilitating design reviews Defining and embedding engineering standards, coding principles, and security best practices Driving adoption of AI-assisted development tools across the software ...

want to be. Be Selective To Be Effective. Be Highly Aligned, Loosely Coupled. Disagree Transparently. Build Dream Teams. Who You Are: You'll design and build backend systems powering blockchain infrastructure and staking products across Galaxy — spanning Ethereum-based systems, staking infrastructure (native and liquid), and blockchain data systems … first development environment that increasingly leverages AI‐assisted workflows. Typical time allocation:roughly 60%building systems and features, 20% code review and mentorship, 20% design, architecture, and product collaboration. What You’ll Do: Build and own backend systems Design and build APIs, services, Ethereum data pipelines and indexers ...

their core mission capabilities. Youll work as part of empowered, autonomous DevOps teams with regular contact with end-users to flexibly and efficiently understand, design, develop, deploy and maintain applications and services on AWS. Youll be encouraged to identify new ways of solving problems and get to work … these, but if not well help you with them AWS Certification at Associate level eg Solution Architect, Developer or DevOps Expertise in microservices and API design Docker, and container runtime platforms such as Kubernetes, EKS, ECS etc Strong understand of operational concepts on AWS, particularly monitoring and observability ...

engineering hires. You will report directly to the CTO and work alongside a small group of senior engineers. The work as it is today Design, build and ship features end to end, from data model and API design through to frontend implementation. Design and build robust … ideally in TypeScript, Node.js and React. We are open to adjacent stacks where the fundamentals are strong. Substantial experience of system design and architecture, including systems that have been in production long enough to show their weaknesses. We will ask you to talk us through something you have designed ...

initiatives while benefiting from permanent employment and ongoing support from Robert Walters. This is a senior, hands-on engineering role for someone who can design, develop and operate production-grade software solutions across APIs, data products, enterprise integrations and AI-enabled tools. You will combine deep technical expertise with … trusted business capabilities. Key responsibilities will include: Designing, developing and maintaining production-grade software, with a strong focus on Python Back End engineering and API development. Building secure, reusable APIs and integration components to connect enterprise systems. Developing data products and pipelines to provide reliable, governed and reusable data ...

scale with us. Your Responsibilities in this Role Own key architecture and implementation decisions for NALA's wallet and Global Accounts foundation Lead design work (RFCs, diagrams, API and system specs) to align on solutions before building Partner with the PM and stakeholders to translate business intent into … generated wallet delegation success rates Help launch Global Accounts into additional markets and kick off our stablecoin card capability Drive engineering quality across API standards, testing strategy, code review bar, and maintainability Manage delivery by breaking down complex work, sequencing milestones, and keeping projects moving end to end Make ...

SDLC towards a more agentic one, you will use AI-assisted tools to increase technical leverage, improve engineering workflows and raise the quality of design, code review, testing and documentation - always with rigorous human judgement. Key Responsibilities Technical Direction : Lead the backend technical effort, establish architectural direction, and guide … team through complex design choices, refactoring priorities and engineering trade-offs. NestJS Architecture : Design and evolve a clean, modular NestJS architecture with clear module boundaries, dependency management, testability and maintainable conventions. Typed APIs and Contracts : Design well-typed, version-aware APIs and integration contracts that are clear ...

join the team redesigning their client portal. This is a hands-on role for an experienced mid-level or senior Python engineer. You will design and build the APIs and backend workflows behind new portal features and own your work through to production. You will work in a collaborative … designing maintainable REST APIs, with solid data modelling and relational database practice Good knowledge of authentication, authorisation, single sign-on patterns and secure API design A testing mindset and experience working with CI/CD Confidence diagnosing application, database and performance issues in live environments An understanding ...

customer moments where AI can create magic, prototype them, and bring them to life. Own delivery end-to-end. Pick up a problem, design the solution, ship the work wherever the feature lives, and see it through to production. Own on-call. Be on the rotation, and stand behind … just code. You measure your work by what changed for the customer, not the lines of code shipped. Production minded. Solid grasp of API design, observability, scaling, reliability, and security. Care about craft. Clean APIs, attention to detail, and how the system feels to work in. Comfortable ...

including ML research engineers, product managers, and platform engineers—to deliver scalable, reliable, and low-latency ML solutions.What you’ll ownSoftware and Service Delivery:Design, implement, and deploy software features, backend services, and APIs that operationalize ML models in production (with a focus on backend, API, and service … engineer, MLOps Engineer, or similar, with hands-on production experience operating backend services or ML-backed APIsProven expertise deploying ML models as production services, API design, and service integrationStrong Python skills and service/backend engineering experience (ideally in FastAPI/OpenAPI, Flask, Go, or Java)Production experience ...

research engineers, product managers, and platform engineers—to deliver scalable, reliable, and low-latency ML solutions. What you’ll own Software and Service Delivery: Design, implement, and deploy software features, backend services, and APIs that operationalize ML models in production (with a focus on backend, API, and service … MLOps Engineer, or similar, with hands-on production experience operating backend services or ML-backed APIs Proven expertise deploying ML models as production services, API design, and service integration Strong Python skills and service/backend engineering experience (ideally in FastAPI/OpenAPI, Flask, Go, or Java) Production ...

part of a collaborative and forward-thinking team. Key Responsibilities Build impactful GenAI solutions: Within your first year, you will contribute to the design and delivery of our new GenAI platforms, directly impacting the productivity of thousands of developers. Shape our technical direction: You will contribute to the technical … Kubernetes, containers, microservices, and event-driven architectures. Solid architectural understanding: A good grasp of distributed systems, resiliency patterns, scalability, and performance engineering. Data and API proficiency: Knowledge of SQL and NoSQL databases, as well as API design and integration patterns. Strong collaboration skills: The ability to communicate ...

advance safe, reliable, and effective AI in financial services. As an Applied AI Engineering Lead - Vice President in Markets Operations, you will lead the design and implementation of agentic AI applications that improve operational workflows, controls, productivity, and engineering practices. You will build reusable AI engineering patterns, context management … specialists, and operations stakeholders to identify high‐value opportunities and deliver robust solutions integrated with strategic platforms and operational processes. Job Responsibilities Lead the design, development, and implementation of agentic AI applications that support Markets Operations workflows, controls, exception management, and productivity use cases Define and drive AI engineering ...

from an MVP to a comprehensive companion to the desktop application, as well as continuing the evolution of our Mobile app. Responsibilities Design & Build: Deliver robust, maintainable features across the stack (Scala/Play backend, React/AG-Grid frontend) Mobile Migration: Define the path from Codename … preferred, but not required)experience with Scala/Java preferred, but not required) Mobile Capability: Experience building or maintaining cross-platform Mobile Apps Architecture & Design: Solid grasp of API design, web & mobile architecture, as well as good UX design. Communication: Clear, pragmatic communicator who collaborates well with ...

Spring Cloud, and related ecosystem technologies. Experience developing modern user interfaces using React and/or Angular . Deep understanding of Microservices Architecture , including design, development, deployment, and support of distributed systems. Experience with Cloud-Native Development principles and cloud platforms (AWS, Azure, and/or Google Cloud Platform … . Strong knowledge of API design , system integration, and event-driven architectures. Experience in Performance Engineering , application optimization, monitoring, troubleshooting, and capacity planning. This client will only accept workers operating via a PAYE engagement model. AMS’s payroll service is in partnership with Giant, we have worked with ...

influence how customers, internal teams, applications, and AI-powered consumers interact with the Comply Data Platform for years to come. What you'll do Design end-to-end platform solutions that connect data pipelines, data products, the security master, semantic models,lakehousetechnologies, APIs, event-driven services, AI interfaces … analytics platforms. Establish architectural standards for interoperability, including API design, event contracts, data exchange patterns, versioning, and access controls. Define scalable integration patterns for customers, partners, and enterprise systems across API, streaming, batch, and self-service access channels. Create consistent interfaces that support human users, analytics tools ...

basis with development team, designers, copy writers and other IT teams. The role develops and presents recommendations from analysis of current solution. Assist in design peer reviews, code peer reviews, build and unit test functional enhancements. Identify areas for code refactoring. Review and contribute to development process and procedures … Defends a recommendation and can confidently support it. Strong organization, communication, and interpersonal skills. Ability to communicate with business and technical audiences and produce design documents suitable for multiple audience types, both client-facing and internal- Must be able to exhibit technical thought leadership and excellent problem solving ability ...

security etc). Working within a project management/agile delivery methodology Experience in technical ownership for a product or software solution, covering design, estimation, shaping and user story/requirement creation Documentation of solutions (e.g. architecture, configuration, release, support-handover Collaborate and liaise with other our client … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

private markets. We are at an early stage of the build and looking for Senior Software Engineers to partner closely with Principal Engineers to design and deliver foundational capabilities. This is a hands‐on role for someone who wants to help shape the architecture, standards, and engineering culture … platform while leveraging modern coding practices to deliver high-quality code and infrastructure. What you’ll do Design and build backend services for the platform, primarily in Go, running on AWS with Postgres as a core data store. Own features and services end-to-end: from shaping requirements ...

creates real customer value, prototype the hardest bets yourself, and bring the team with you. Own delivery end-to-end. Pick up a problem, design the solution, ship the work wherever the feature lives, and see it through to production. Own on-call. Be on the rotation, and stand … just code. You measure your work by what changed for the customer, not the lines of code shipped. Production minded. Solid grasp of API design, observability, scaling, reliability, and security. Care about craft. Clean APIs, attention to detail, and how the system feels to work in. Comfortable ...

including Python and at least one additional production language such as TypeScript or equivalent, version control, testing, CI, and maintainable code, together with SQL, API design, code review and secure coding practices. Hands-on LLM application development, covering tool use, structured outputs, retrieval and agent frameworks, including embeddings ...