76 to 100 of 300 API Design Jobs in London

delivery methodology to ensure timely and high-quality delivery of software applications. Technical Ownership: Take technical ownership of a product or software solution, covering design, estimation, shaping, and user story/requirement creation. Solution Documentation: Document solutions, including architecture, configuration, release, and support handover. Stakeholder Collaboration: Collaborate and liaise … practices and modern architectural patterns, including microservices and message-driven architectures. Non-Functional Requirements: Experience developing applications with non-functional requirements in mind. Application Design: Experience in application/digital services design. Software Engineering Practices: Proficiency in software engineering practices like code reviews, CI/CD pipelines, and SOLID ...

insurers alike. Ideal for a candidate who is driven to succeed, take ownership and pride in delivering exceptional levels of customer service. Key Accountabilities Design, develop, test, and maintain Python applications, scripts, and services Build and maintain APIs and integrations with third-party systems and internal platforms Write clean … technical solutions Participate in code reviews, sprint planning, and agile ceremonies Troubleshoot, debug, and resolve production issues in a timely manner Contribute to the design and optimisation of data pipelines and database interactions Support CI/CD pipeline development and deployment automation Write and maintain unit, integration, and regression ...

engineering role for a developer who is deeply enthusiastic about the intersection of decentralized technologies and institutional finance.The successful candidate will contribute to the design, development, and deployment of Web3-native components and integrations that power Citi's digital asset infrastructure — spanning tokenization, smart contracts, on-chain settlement … event-driven architectures to handle on-chain events, transaction lifecycle management, and blockchain state synchronizationCollaborate with architects and senior engineers to contribute to the design of scalable, secure, and resilient Web3 infrastructureParticipate in code reviews, providing and receiving constructive technical feedback to maintain high engineering standardsSupport the integration ...

team you'll be working with: We are looking for a Solution Architect to help our clients design and deliver modern, scalable and secure digital solutions, primarily on Microsoft technologies. You will combine architecture leadership with client-facing consulting. That means working directly with stakeholders to understand their goals … shaping technical options and trade-offs, and guiding delivery teams to implement the design safely. This role suits someone who enjoys turning ambiguity into clear decisions, can explain technology, and is happy getting close to the code when needed. What you'll be doing: Discovery and stakeholder engagement Lead ...

Ireland providing specialist services to a wide range of blue-chip clients. The role We are seeking technical polyglots who enjoy both technical architectural design, hands-on coding and peer reviews, though also like the idea of the equally important social/client-facing aspect of the role. … 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 (TDA) for delivery of technical stories and produce technical documentation artefacts to support the delivery process. Main Responsibilities Duties will include: The design ...

skilled Sr. Delivery Consultant to join our team at Amazon Web Services (AWS). In this role, you'll work closely with customers to design, implement, and manage AWS solutions that meet their technical requirements and business objectives. You'll be a key player in driving customer success through … culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve.Basic qualifications- Experience as technical specialist in design and architecture- Experience in cloud based solution (AWS or equivalent), system, network and operating system- Experience in external or internal customer facing, complex ...

product proposals grounded in customer data, SME input, and market context. Present options with explicit tradeoffs to support executive decision-making. Ensure all product design complies with applicable regulatory requirements across immigration, tax, social security, and posted-worker obligations. Coordinate with legal and compliance leads on language, logic … platform. Identify and resolve data quality issues in coordination with engineering. Manage vendor relationships relevant to the Business Travel product, including travel data providers, API partnerships, and compliance data sources. Conduct data analysis to inform product decisions, including API response analysis, integration data validation, and client usage pattern ...

deliver the roadmap for horizontal platform capabilities serving all private markets asset classes — including core data services, cross-fund analytics, workflow automation, and API infrastructure.Lead initiatives in AI/ML-enabled product features, including document extraction (e.g., fund documents, LP agreements, investment memos), NLP-powered search, and intelligent alert … investor reporting cycles.Demonstrated experience owning platform-level or infrastructure product workstreams with high technical complexity.Familiarity with data architecture concepts: data modeling, ETL pipelines, API design, and event-driven systems.Experience with agile development methodologies; strong proficiency with product management tools (Jira, Confluence, Productboard, or similar).Exceptional analytical, communication ...

world, and turnaround measured in days. That does not scale to where MoonPay Enterprise is going. KYB has to become a product: measurable, fast, API-first, defensible in front of regulators and banking partners. This is a principal seat. You set the multi-year direction for how businesses enter … order. Genuine product depth on MoonPay Enterprise is non-negotiable. Within weeks you talk fluently about KYB outcomes, UBO requirements, virtual account structures, and API behaviour. From being hands-on, not from documentation. Onboarding funnel & conversion The KYB funnel is yours: pass rate, time-to-verified against ...

heart of their core engineering capability.This isn't a purely strategic seat. You'll have genuine technical authority over a business-critical API platform while staying close to the engineering, partnering with skilled squads to solve complex distributed systems challenges at scale.Key Responsibilities:Set the technical direction … large-scale API platform across both synchronous and event-driven servicesLead architectural design across a modern, cloud-native stackDrive continuous improvement across security, observability, performance, and long-term maintainabilityMentor and develop engineers and technical leads across multiple teamsWork closely with Product and Delivery leadership to keep engineering strategy ...

applications while collaborating with architects, engineers and stakeholders to deliver innovative digital solutions. The Role As a Senior Software Engineer, you'll lead the design and development of modern cloud-native applications, working closely with clients to understand business requirements and translate them into robust technical solutions. … contribute to solution design, mentor other engineers, promote engineering best practices, and help shape scalable, resilient platforms built on Microsoft Azure. What You'll Be Doing Design, develop and deliver modern cloud-native applications. Build scalable, secure and resilient event-driven solutions. Develop production-quality software using .NET ...

accordingly.The defining challenge of this role is composability: a marketing site that marketers, and increasingly AI agents, can build pages with, without breaking design, performance or SEO.You can expect to:Build, scale and evolve our section library: the Astro components, Sanity schemas and design tokens that … compose marketing pages consistently and accessibly.Own the content model. Design schemas that resist misuse, so an editor, or an agent, can build a page that is correct by construction rather than correct by review.Take Figma component specs all the way to production: responsive across mobile, tablet and desktop, accessible ...

deliver the roadmap for horizontal platform capabilities serving all private markets asset classes - including core data services, cross-fund analytics, workflow automation, and API infrastructure. Lead initiatives in AI/ML-enabled product features, including document extraction (e.g., fund documents, LP agreements, investment memos), NLP-powered search, and intelligent … reporting cycles. Demonstrated experience owning platform-level or infrastructure product workstreams with high technical complexity. Familiarity with data architecture concepts: data modeling, ETL pipelines, API design, and event-driven systems. Experience with agile development methodologies; strong proficiency with product management tools (Jira, Confluence, Productboard, or similar). Exceptional ...

role in shaping the future technology landscape supporting advisers and clients across the organisation. The Role As Engineering Lead, you'll own the design, development, integration and operation of the firm's financial planning platform, ensuring it remains scalable, secure and fit for future growth. You'll provide technical … senior technical authority for the financial planning domain. Define and maintain engineering standards covering code quality, documentation, testing and release management. Lead architecture and design decisions, ensuring scalability, maintainability and security. Conduct technical design reviews and provide expert guidance across engineering teams. Balance delivery objectives with technical debt ...

patterns, govern APIs/events, ensure secure, resilient data flows, and drive standardization, observability, and compliance. Core Responsibilities Architecture & Standards • Define canonical integration patterns (API-led, event-driven, batch/EDI) and reference architectures on SAP BTP. • Establish guidelines for API design, versioning, reusability, and governance. • Create … integration roadmaps aligned with product releases and enterprise architecture. Integration Delivery • Lead solution design using SAP Integration Suite (Cloud Integration/CPI, API Management, Event Mesh). • Orchestrate end-to-end flows for master data, transactional data, and identity across SAP and non-SAP systems. • Govern mapping, transformation ...

public sector clients, helping to deliver Solirius services to the highest standard. The role will involve working with multiple business stakeholders, helping them to design business solutions which will then be implemented by the delivery teams. As a Junior Solution Architect, you will undertake structured analysis of technical issues … translating this analysis into designs that describe a solution. You will be consulted on design and can provide design patterns. You will identify the deeper issues that need fixing and look for opportunities to collaborate and reuse components, communicating with both technical and non-technical stakeholders. You will ...

improve transparency within the firm and across our broad community of investors and portfolio companies. BXTI is nimble and entrepreneurial – our open, iterative design processes and rapid pace of development mean that everyone on the team has the opportunity to make an impact from day one. We are problem … with proficiency in C#, JavaScript (React and/or Angular), Typescript, databases (relational and/or NoSQL), and cloud technologies, preferably AWS.Experience with RESTful API design, development, and scalable microservice architecturesAbility to develop scalable, secure, and maintainable code, with a strong background in object-oriented programmingExcellent problem-solving ...

efficiency and improve transparency within the firm and across our broad community of investors and portfolio companies.BXTI is nimble and entrepreneurial – our open, iterative design processes and rapid pace of development mean that everyone on the team has the opportunity to make an impact from day one. … proficiency in C#, JavaScript (React and/or Angular), Typescript, databases (relational and/or NoSQL), and cloud technologies, preferably AWS.* Experience with RESTful API design, development, and scalable microservice architectures* Ability to develop scalable, secure, and maintainable code, with a strong background in object-oriented programming* Excellent ...

reliability, and performance of our applications.Design and implement monitoring, alerting, and incident response systems.Collaborate with application software engineers (as needed) to guide their design and ensure it scales for what Carta needs in the long run.Act as an agent of change and push boundaries to incrementally improve our systems … secure, reliable, scalable and performant infrastructure to Carta’s customers and developers.We are Software and Infrastructure Engineers who specialize in cloud computing, networking, systems design and architecture, storage, real time data telemetry, associated automation, tooling and processes. We possess a breadth and depth of knowledge about Carta’s infrastructure ...

will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Working in a team of Front-End engineers Writing clear & concise code Working closely with Back-End engineers Participate … architecture design code reviews API design with the Back-End engineers and other team members to establish more functional, cohesive code Create, maintain documentation while implementing the best coding practices standards Hands-on approach Participation in sprint rituals What you’ll need 6+ years experience developing large ...

contexts Use customer feedback, analytics, and direct user insights to inform technical decisions, prioritise improvements, and validate that shipped features deliver measurable value Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity … Partner with product, design, and customers to shape solutions early, translating business requirements into technical architecture while surfacing risks and opportunities that impact customer outcomes Mentor and coach other engineers, raising the bar for technical excellence through code reviews, pair programming, and architectural guidance Beyond the tech ...

Sufficient depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi-layered fraud stack.Distributed systems design: Proven experience designing, building, and operating scalable, highly available distributed systems in a cloud-native environment.Modern tech stack experience: Demonstrable experience with cloud platforms … preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST).Database expertise: Hands-on experience with both relational and NoSQL databases.A people-first approach: Deep commitment to the growth and well-being of your team, with proven experience in coaching, mentorship, and performance management.Commercial and data fluency: Comfort ...

depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi-layered fraud stack. Distributed systems design: Proven experience designing, building, and operating scalable, highly available distributed systems in a cloud-native environment. Modern tech stack experience: Demonstrable experience with cloud … platforms (preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST). Database expertise: Hands-on experience with both relational and NoSQL databases. A people-first approach: Deep commitment to the growth and well-being of your team, with proven experience in coaching, mentorship, and performance management. Commercial ...

team works with top tier global financial institutions and major tech companies to offer Wise products and services directly to their customers. Through our API , we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves Wise Platform by increasing … improve turnaround times. Designing and developing innovative new features that expand the functionality of Wise's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of Wise's platform. Diagnosing and resolving complex technical issues ...

engineering and delivery, shaping how apps, services, and systems come together. It’s a varied role that mixes hands-on coding with architectural design and technical leadership. You’ll design and build modern environments, integrate multiple SaaS platforms, and help set the standards for how things are done … code using Terraform and CloudFormation• Docker and Kubernetes• Automation and CI/CD pipelines• GitHub and GitHub ActionsSoftware and Frameworks• React, Node, Next.js, Python• API design and integration• RESTful services and automationData and Platforms• Salesforce• Google Workspace• Atlassian tools such as Jira and Confluence• Databases including DynamoDB, MongoDB ...