1 to 25 of 124 API Design Jobs

Promote and practice best development approaches such as Test-Driven Development (TDD) and Behavior-Driven Development (BDD) to deliver high-quality, maintainable code. Apply design patterns to address complex problems, ensuring code is efficient, readable, and reusable. Adhere to IT and Information Security policies and procedures in all engineering … Your Profile Essential skills/knowledge/experience: Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design Understanding of API design for mobile application with event driven architecture Strong analysis and problem-solving skills Knowledge ...

office) About the Role We're looking for a Senior Application Engineer with strong backend and cloud development expertise to help design and build scalable, secure services that power Internal Platforms. What You'll Do Design and build scalable backend services and APIs supporting mobile and event-driven … requirements through deployment and maintenance Provide technical guidance and mentorship to engineers within the team Promote best practices such as TDD, BDD, and secure API design Collaborate with technical leads, IT teams, and business stakeholders to deliver high-quality solutions Apply design patterns and engineering best practices ...

someone who enjoys building systems properly and seeing them operate in the real world. You’ll own the backend platform end-to-end - from API design and infrastructure to fintech integrations, operational tooling and production systems - and play a key role in shaping how the product evolves. This … including: Rapid issue resolution Operational workflows Compliance processes Data analysis and reporting What You’ll Be Doing: Platform & Backend Own and evolve the backend API (Node.js/TypeScript/Postgres) Design scalable, secure, and reliable API-first systems Build and operate production-grade APIs at scale Work ...

London office About The Client: Our client is a rapidly growing Infrastructure-as-a-Service (IaaS) provider driving digital transformation. Key Responsibilities: Architecture & System Design Design and evolve scalable backend services and product components. Make sound architectural decisions across APIs, services, and data layers. Lead delivery from design … high coding standards and test coverage. Contribute to code reviews and documentation. Mentor engineers and support technical growth. Collaboration Work closely with Product and Design to deliver scalable solutions. Communicate technical trade-offs and manage cross-team dependencies. Essential skills and requirements: Strong experience building production backend systems ...

FastAPI). A product-first mindset is essential, ensuring the entire stack delivers reliable, high-quality experiences. Key Responsibilities End-to-End Feature Development Design, develop, and deploy features across the full technology stack Translate product requirements into scalable technical solutions Build systems from database schema to backend services … using React and Next.js Optimize usability, performance, and responsiveness Implement polished UI elements including animations, accessibility improvements, and micro-interactions Collaborate with product and design stakeholders to deliver intuitive user journeys Backend Development & API Design Design and implement efficient backend services in Python Build scalable APIs ...

Hybrid working model Global Organisation Your Responsibility Lead a team of engineers in the design, development, and delivery of scalable, high-quality digital applications and user experiences. Act as technical lead for an agile squad, driving collaboration within the team and across multiple engineering groups. Provide hands-on development … applications and backend services. Translate complex business requirements into efficient, scalable, and innovative technical solutions. Guide architectural decisions and ensure alignment with modern application design patterns and best practices. Mentor and support developers, fostering a strong learning culture and continuous improvement. Collaborate closely with cross-functional roles including product ...

development aligns with OWASP secure coding standards Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Collaborating with UI/UX teams using Figma prototypes Maintaining high-quality technical documentation Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core … Entity Framework Core RESTful API design/OpenAPI/Swagger Angular 21 (mandatory) TypeScript/RxJS DevExpress DevExtreme v25 (mandatory) Microsoft Azure (App Services, SQL, Storage) Azure Entra ID Azure Key Vault Infrastructure as Code (Bicep preferred) CI/CD pipelines (Azure DevOps or equivalent) Bitbucket (Git) What ...

scale - component lifecycle, rendering behaviour, and bundle architecture are instincts - TypeScript mastery in strict mode - complex generics, discriminated unions, conditional types, and type-safe API boundary design - Vite and modern build tooling; tree-shaking, chunk strategy, module federation, and build performance optimisation in CI - State management at scale … composite lifecycle, memory profiling, GC pressure, and long-task detection - WebGL, Canvas, or custom rendering engine for high-density, real-time financial data visualisation - Design system ownership - token architecture, component API design, versioning strategy, and cross-team adoption at scale - Testing discipline: unit, integration, E2E (Playwright/ ...

scale - component lifecycle, rendering behaviour, and bundle architecture are instincts TypeScript mastery in strict mode - complex generics, discriminated unions, conditional types, and type-safe API boundary design Vite and modern build tooling; tree-shaking, chunk strategy, module federation, and build performance optimisation in CI State management at scale … composite lifecycle, memory profiling, GC pressure, and long-task detection WebGL, Canvas, or custom rendering engine for high-density, real-time financial data visualisation Design system ownership - token architecture, component API design, versioning strategy, and cross-team adoption at scale Testing discipline: unit, integration, E2E (Playwright/ ...

Role We’re hiring a Backend Engineer to build the core infrastructure behind Revax’s AI-native platform for professional services. You’ll design, optimise, and scale the systems that power multi-agent drafting, knowledge graphs, and auditable AI workflows used by accountants, tax advisors, and consultants at leading … graphs, and real-world enterprise workflows. What You’ll Do Build & own core backend systems · Build and optimise databases for complex, real-world data · Design and implement APIs using FastAPI for AI workflows and product features · Build and scale LangGraph-based multi-agent systems with checkpointing, retries, and observability ...

developer to support the development and deployment of the AWS Professional Supply Chain Command Centre solution. This role will focus on backend service development, API design, event tracking, and analytics integration across supply chain flows involving suppliers, manufacturing, and distributors. Location: London, UK (Hybrid) Contract role … experience in AWS backend development (Node.js, Lambda, ECS, Step Functions). Strong understanding of supply chain processes and event-driven architectures. Experience with API design, CI/CD pipelines, and AWS services like Neptune, RDS, DynamoDB, and S3 Familiarity with analytics tools and KPI frameworks for supply chain ...

technical authority responsible for defining, governing, and evolving the end-to-end architecture of our “AI First” platform, ensuring architectural consistency, secure-by-design principles, and long-term scalability across all engineering squads. Working closely with the Engineering Manager, Cloud & Platform Engineering Lead, and Product leadership, this role shapes … excellence, and provides deep guidance to multiple autonomous squads as we scale towards high-performing, cloud-native teams. The Architect balances hands-on solution design, strategic planning, technical oversight, and stakeholder collaboration to keep the platform robust, secure, and ready for future growth. This role defines the architectural backbone ...

built. You'll also play a mentorship role - raising the engineering bar across the team and championing Responsible AI practices as we scale. Responsibilities Design scalable, secure, and fault-tolerant full-stack architectures that seamlessly blend traditional web services with generative AI components, ensuring high availability and resilience across … cost-optimised use of Azure AI APIs, GPU compute, and container orchestration resources Set the standard for code quality through comprehensive code reviews, technical design documents, and architectural decision records; mentor junior and mid-level engineers to grow their capabilities hampion Responsible AI practices including model evaluation, bias monitoring ...

Application Integration Architect Role Overview We are looking for an experienced Application Integration Architect to lead the design and delivery of scalable, high-performance integration solutions across enterprise systems. This role sits at the intersection of architecture, engineering, and business transformation—driving seamless interoperability between platforms while ensuring reliability … cross-functional teams, including engineering, operations, vendors, and business stakeholders, to define and implement robust integration strategies aligned with enterprise architecture principles. Key Responsibilities Design and architect end-to-end integration solutions using modern integration patterns (e.g., event-driven, microservices, API-led connectivity). Translate complex business requirements ...

Application Integration Architect Role Overview We are looking for an experienced Application Integration Architect to lead the design and delivery of scalable, high-performance integration solutions across enterprise systems. This role sits at the intersection of architecture, engineering, and business transformation—driving seamless interoperability between platforms while ensuring reliability … cross-functional teams, including engineering, operations, vendors, and business stakeholders, to define and implement robust integration strategies aligned with enterprise architecture principles. Key Responsibilities Design and architect end-to-end integration solutions using modern integration patterns (e.g., event-driven, microservices, API-led connectivity). Translate complex business requirements ...

Application Integration Architect Role Overview We are looking for an experienced Application Integration Architect to lead the design and delivery of scalable, high-performance integration solutions across enterprise systems. This role sits at the intersection of architecture, engineering, and business transformation-driving seamless interoperability between platforms while ensuring reliability … cross-functional teams, including engineering, operations, vendors, and business stakeholders, to define and implement robust integration strategies aligned with enterprise architecture principles. Key Responsibilities Design and architect end-to-end integration solutions using modern integration patterns (eg, event-driven, microservices, API-led connectivity). Translate complex business requirements ...

etc. Required certifications of UKG Pro and Legion Good experience of integrations work, to and from UKG and Legion solutions with Data translation and API mappings Good Experience creating custom reports from UKG and Legion data. Good experience of working in agile software development teams with an emphasis … self-organization Experience of building extensions of UKG Pro and Legion Understanding of API design. API 1st mindset, REST API design Understanding of event-based architecture ...

venture backed by the strength and stability of an established business. Key Responsibilities End-to-end development of high-quality, scalable SaaS platforms from design through deployment and maintenance. Architect and implement robust backend services primarily using Python and PostgreSQL. Develop and maintain responsive, performant front-end applications with … Provide technical mentorship and leadership to development teams, fostering best practices in coding, testing, and deployment. Participate in code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast ...

SoftwareDeveloper(API Development/Backend Node.js, C#, Fullstack) Birmingham, West Midlands (Hybrid 1 day onsite a week) 55k + Benefits Were partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. Theyre looking for a Software Engineer with strong API and backend development … power enterprise software products. Youll work primarily with Node.js and C#, collaborating with cross-functional teams to deliver well-architected, maintainable solutions. Key Responsibilities Design, build, and maintain RESTful APIs and backend systems. Develop high-quality, scalable code using Node.js and C#. Collaborate with product and engineering teams ...

Software Developer (API Development/Backend – Node.js, C#, Fullstack) Birmingham, West Midlands (Hybrid – 1 day onsite a week)55k + BenefitsWe’re partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. They’re looking for a Software Engineer with strong API … enterprise software products. You’ll work primarily with Node.js and C#, collaborating with cross-functional teams to deliver well-architected, maintainable solutions. Key Responsibilities Design, build, and maintain RESTful APIs and backend systems. Develop high-quality, scalable code using Node.js and C#. Collaborate with product and engineering teams ...

seeking a Senior Java Developer with strong expertise in Java and Spring Boot to design, develop, and maintain enterprise-grade applications. The role involves close collaboration with solution teams, business stakeholders, and IT departments to deliver scalable, secure, and high-quality software solutions. In addition to strong backend expertise … offers exposure to AI-enabled integrations, including consumption of AI/LLM APIs and awareness of AI-related risks and best practices. Key Responsibilities: Design and develop Java applications based on client and business requirements Design, develop, and maintain RESTful APIs using Spring Boot Ensure overall application architecture ...

with architectural ownership, offering the opportunity to work on complex, real-world systems across IoT, cloud infrastructure, and large-scale data environments. Key Responsibilities Design, build, and operate scalable backend systems using Python (Django) and AWS Lead architectural decisions across performance, scalability, reliability, and security Design and evolve … APIs and data models for internal tools and customer-facing applications Drive IoT and device communication architecture across distributed systems Collaborate with product and design teams to translate real-world requirements into scalable solutions Contribute to frontend development using React and supporting infrastructure Build and optimise pipelines for ingesting ...

. You will be responsible for:- Providing expert level technical direction for complex MarTech projects involving AEM, AEP, Adobe Target, and related integrations. Leading design, development, and implementation efforts across multiple platforms. Leading services and direction, providing technical expertise and completing complex development, design, implementation, architecture design … following skills, then LETS TALK! Full stack development background with Java, JavaScript, HTML, CSS, SQL and modern frameworks Familiarity with microservice architecture, API design, and integration patterns Knowledge of AWS services and cloud-based deployment models Strong understanding of CI/CD pipelines (GitHub), OOP/SOLID, Agile ...

agile squad, responsible for the end-to-end delivery of scalable web applications. What You’ll Do (Responsibilities) End-to-End Development: Design and develop high-volume, low-latency applications for mission-critical systems. Back-End Excellence: Write clean, maintainable code using Java and the Spring Boot ecosystem. Front … Innovation: Build responsive, user-friendly UI components using React, Angular, or Vue.js . Database Management: Design and optimize schemas for relational ( PostgreSQL/MySQL ) and NoSQL databases. API Design: Build and consume secure RESTful APIs to integrate with internal and third-party services. Collaboration: Participate in code ...

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 ...