1 to 25 of 141 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 ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

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 ...

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 ...

Details/Scope of the project: Assist in the development, implementation, and management of technology-based business solutions. Code, test, and implement configuration changes. Design software applications to meet both functional and technical requirements. Adapt to new languages, methodologies, and platforms to meet the needs of the project. Team … Technical Stack: .Net Framework/.Net Core, WebAPI, Angular, Azure Functions, EF Core, SQL Server Object-oriented programming concepts SOLID Principal concepts for API design Must have skills for this role: Fluent with the following technologies/languages (5+ years) .Net Framework/.Net Core, WebAPI, Angular, Azure ...

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 ...