26 to 50 of 1,062 API Design Jobs

We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role working from any of our offices 2 days a week. As a Senior Fullstack Developer at Waracle, you will become … ready to blend deep technical expertise with strategic leadership in a fast-paced, consultancy environment, we invite you to apply. What You’ll Do: Provide Technical Leadership: Guide the design and build of advanced, scalable .NET/C# backend services and sophisticated React frontend applications. You’ll set technical direction, contribute to overall architecture, and ensure the highest standards … a Fullstack Developer with a strong portfolio of successfully delivered web applications. Backend Mastery: Expert-level proficiency in .NET and C# (including .NET Core/5+), ASP.NET Core, RESTful API design, and a solid understanding of microservices architecture. Frontend Proficiency: Expert-level proficiency in React, including core libraries, state management, and modern frontend practices. Database Acumen: Solid understanding More ❯

We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role working from any of our offices 2 days a week As a Senior Fullstack Developer at Waracle, you will become … ready to blend deep technical expertise with strategic leadership in a fast-paced, consultancy environment, we invite you to apply. What You'll Do: Provide Technical Leadership: Guide the design and build of advanced, scalable .NET/C# backend services and sophisticated React frontend applications. You'll set technical direction, contribute to overall architecture, and ensure the highest standards … a Fullstack Developer with a strong portfolio of successfully delivered web applications. Backend Mastery: Expert-level proficiency in .NET and C# (including .NET Core/5+), ASP.NET Core, RESTful API design, and a solid understanding of microservices architecture. Frontend Proficiency: Expert-level proficiency in React, including core libraries, state management, and modern frontend practices. Database Acumen: Solid understanding More ❯

what you have experience of, we can train in the rest. Microservices architecture. Docker & Kubernetes in Azure. Continuous Delivery with Jenkins. RabbitMQ/MassTransit. Microfrontends. Test Driven Development. RESTful API design. GitFlow. We Would Like To Meet Someone Who Is Minimum 4 years of C#, SQL, JavaScript/TypeScript to an advanced level in a commercial environment. Minimum … Year’s Commercial Experience Of React Produces initial results rapidly and iterate based upon feedback. Knowledge of microservice design principles – preferably with commercial experience. Effective communicator. Makes pragmatic implementation decisions and can fail fast if an approach is not working. Understands projects and project goals in depth. Solves challenging problems when no obvious solution is apparent. Desirable experience/ More ❯

AI Agents Solution Architect - Future Talent (Q2/Q3 opportunities) for leading GSI in the software engineering market AI Solution Architect to design and implement AI-driven agent solutions for the online commerce space. Deep understanding of AI/ML models, cloud computing, and scalable system architecture. This role requires expertise in architecting intelligent agents, optimizing cloud-based deployments … and integrating AI services into enterprise applications. Key Responsibilities: Architect and design AI-powered agent solutions that integrate with enterprise systems and cloud platforms. Develop and optimize RESTful and GraphQL APIs to facilitate AI-driven interactions. Utilize AWS services (Lambda, S3, API Gateway, SageMaker, DynamoDB, ECS, etc.) to deploy scalable AI solutions. Implement Full Stack JavaScript (Node.js, React.js … Work closely with data scientists and ML engineers to integrate machine learning models into cloud-native applications. Ensure security, scalability, and reliability of AI agent solutions in production environments. Design event-driven and serverless architectures to enhance AI agent performance. Lead proof-of-concept (PoC) developments for AI-based automation and intelligent process optimization. Define best practices for AI More ❯

Position Summary We are currently seeking a motivated, career and customer-oriented senior-level Java Developer to join our team to begin an exciting and challenging career. Job Responsibilities • Design and implement Micro Service Architecture JEE software applications • Use modern software engineering tools including Eclipse, Visual Studio Code, and Atlassian Suites for design, development, and testing the software … Present the solution at formal and informal design reviews and document the design according to the Government's system lifecycle methodology. • Must be well experienced in design and development of Microservice using Java, Spring-Boot, Rest API, JPA and JQL Required Skills and Experience • Bachelor's degree in computer science or related engineering field with 9+ … years of technical experience focusing on Java application development projects • Provisioning, operating, and maintaining systems running on AWS (or equivalent cloud providers) • Strong understanding of RESTful services, API design and implementation. • Good knowledge in technical concepts-Security, Transaction, Monitoring, Performance. • Strong experience in DevOps/CM tools like Git, Jenkins, Artifactory, Maven/Gradle, SonarQube. • Java Micro Service More ❯

role at Good Chemical Science&Technology Co.Ltd. AI Agents Solution Architect - Future Talent (Q2/Q3 opportunities) for leading GSI in the software engineering market AI Solution Architect to design and implement AI-driven agent solutions for the online commerce space. Deep understanding of AI/ML models, cloud computing, and scalable system architecture. This role requires expertise in … architecting intelligent agents, optimizing cloud-based deployments, and integrating AI services into enterprise applications. Key Responsibilities Architect and design AI-powered agent solutions that integrate with enterprise systems and cloud platforms. Develop and optimize RESTful and GraphQL APIs to facilitate AI-driven interactions. Utilize AWS services (Lambda, S3, API Gateway, SageMaker, DynamoDB, ECS, etc.) to deploy scalable AI … Work closely with data scientists and ML engineers to integrate machine learning models into cloud-native applications. Ensure security, scalability, and reliability of AI agent solutions in production environments. Design event-driven and serverless architectures to enhance AI agent performance. Lead proof-of-concept (PoC) developments for AI-based automation and intelligent process optimization. Define best practices for AI More ❯

sectors. Key Responsibilities: * * Full stack developer with around 8-10 years development experience, working in a agile development team to deliver robust enterprise-wide solutions utilising industry standard practices * Design, develop, enhance and maintain applications using agreed coding standards and quality targets. * Ensure quality via code reviews and thorough unit testing. * Liaise with immediate scrum team, other scrum/… Experience and expertise with the following technical stack * Angular 13+ with DevExtreme UI library desirable * Playwright, ReadyAPI and Specflow. * Jira, Github, Confluence * Nice to have - * C# and .NET6+ * Rest API's and Microservice architecture * SQL Server Database, NHibernate or Entity Framework Demonstrate expertise of: * * Building modern-web applications * Modern UI design principles. i.e. Able to take initial design direction and interpret those guidelines to finalise the design through to a solution * Restful API Design and development fundamentals * Good SQL knowledge * Test case preparation and execution EDUCATION & EXPERIENCE REQUIREMENTS * * 8-10 years' experience designing and developing applications both individually and as part of a team * Familiarity with energy or financial trading environment * Strong inter-personal More ❯

that support financial services and products. You should be able to write clean, scalable, and secure code and be comfortable working in a fastpaced, highly collaborative environment. Key Responsibilities: Design, develop, and maintain scalable web applications using Python and Django Build and optimise backend services, APIs, and database schemas for performance and scalability Work closely with product, design … expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity with RESTful API design and integration Understanding of data privacy, security standards, and regulatory compliance relevant to FinTech Experience with version control systems like Git Good communication skills and ability to More ❯

that support financial services and products. You should be able to write clean, scalable, and secure code and be comfortable working in a fastpaced, highly collaborative environment. Key Responsibilities: Design, develop, and maintain scalable web applications using Python and Django Build and optimise backend services, APIs, and database schemas for performance and scalability Work closely with product, design … expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity with RESTful API design and integration Understanding of data privacy, security standards, and regulatory compliance relevant to FinTech Experience with version control systems like Git Good communication skills and ability to More ❯

Join to apply for the Mid-Senior Java Developer role at Eeze Eeze is a fast-growing iGaming provider looking to expand its operations in the European market. We design, develop, and deliver immersive live casino games tailored to your brand and its audience. Job Summary As a Java Developer within Core Team, you will play a crucial role … You'd be a great fit if you are a reliable individual with a solid understanding of Java and Spring alongside being passionate for new technology trends! Key Responsibilities: API Development: architect and code integration APIs to support seamless communication between systems Feature Implementation: collaborate with the product team to maintain existing features and implement new enhancements New Services … design and develop new services using the latest tech stack and ensure their functionality, security, scalability and performance Backend-Frontend Integration: work closely with frontend developers to design and implement efficient integration systems Microservices architecture: Create scalable and maintainable microservices Database Management: develop and manage databases (e.g., PostgreSQL, Oracle DB) for efficient storage and retrieval of data Security More ❯

our talented team of developers. You’ll work on cutting-edge financial technology products, collaborating closely with a multidisciplinary team to deliver robust, efficient, and secure solutions. Key Responsibilities Design, develop, and maintain high-performance, scalable software solutions using Java and AWS. Collaborate with stakeholders to gather requirements and translate them into technical solutions. Contribute to the full software … development lifecycle, including design, development, testing, and deployment. Optimize applications for maximum speed and scalability. Ensure code quality through peer reviews, unit testing, and adherence to best practices. Troubleshoot, debug, and resolve technical issues in production and development environments. Mentor junior developers and provide technical leadership within the team. Key Requirements Proven experience as a Software Engineer, with a … strong focus on Java (Spring Boot preferred). Hands-on experience with AWS services, including but not limited to EC2, S3, Lambda, and RDS. Solid understanding of RESTful API design and enterprise microservices. Experience with database technologies such as PostgreSQL or MySQL. Familiarity with modern CI/CD practices and tools like Jenkins, GitHub Actions, or similar. Strong More ❯

to the .NET development team to ensure delivery of great quality outputs that fully support achievement of the business’s objectives, needs and requirements. Core Responsibilities Front-End Development: Design, develop, and implement front-end applications using Angular and HTML. Back-End Development: Write reusable, testable, and efficient code; develop and maintain server-side logic using .NET. UI/… with an “accessibility for all” mindset. Optimisation: Optimise applications for maximum speed and scalability. Security: Implement security and data protection measures for public-facing applications with a “secure by design” principle. API Design and Management: Design and manage APIs, including versioning and ensuring backwards compatibility for internal and external apps. Project Delivery: Deliver application modules in … Best Practices: Ensure coding is conducted to best practice guidelines to build and maintain a high-quality application suite. Mentor members of the development team in the use of design patterns and the importance of reusable code. Version Control: Manage code versioning properly and participate in code review processes. Technical Discussions: Contribute to discussions on and help guide the More ❯

own the strategic architectural direction and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers, fostering a culture of technical … of commercial software development experience, with at least 3 years in a senior or technical lead role. Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding and practical application of … experience integrating AI tools, APIs, or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid grasp of security best practices More ❯

own the strategic architectural direction and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers, fostering a culture of technical … of commercial software development experience, with at least 3 years in a senior or technical lead role. Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding and practical application of … experience integrating AI tools, APIs, or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid grasp of security best practices More ❯

applications Experience writing performant SQL Modern JavaScript ES2018+ TDD and all aspects of testing from unit through to integration Familiarity with CI/CD pipelines Mobile-first web development API design and consumption Agile practices Desirable Skills Experience in a strongly-typed object oriented language such as C# or Java Typescript NestJS .NET Core GraphQL Elasticsearch React hooks More ❯

Senior Backend Software Engineer (C# .NET Core) - Revolutionise Healthcare with REST API Design! Are you ready to make a monumental impact in the healthcare industry? We're looking for a Senior/Lead Backend Software Engineer with a strong focus on REST API design to join our forward-thinking team. Reporting directly to the Vice President … Excellent Benefits + Share Options Reporting To: Vice President of Software Development Your Mission: Collaborate with a cross-functional team of Frontend Developers, QA Engineers, and DevOps Engineers to design secure, scalable REST API endpoints that will revolutionise clinical research applications. This critical role requires extensive experience in REST API design. You will also develop relational database … schemas and work within a containerized microservice platform. Key Responsibilities: REST API Design & Implementation: Develop and maintain REST APIs using C# and .NET Core SDK. Database Mastery: Design relational database schemas, utilize Entity Framework (ORM), manage database migrations, and work with PostgreSQL. Microservices: Containerize microservices using Docker. Collaboration: Partner with DevOps Engineers on CI pipelines. Mentorship: Guide More ❯

applications using React, TypeScript, and Node.js (We use Nest.js and Next.js). Ensure seamless interactions between the frontend and backend, delivering a highly responsive and intuitive user experience. Enhance API & Backend Services for AI Agents – Design, implement, and maintain secure, high-performance APIs that integrate with AI agent systems and LLMs (OpenAI, Anthropic Claude, or similar). Develop … robust API endpoints to facilitate real-time AI interactions and automation workflows.. Work with AI & LLM Tools - Implement retrieval-augmented generation (RAG) pipelines, fine- tune LLM prompts, and integrate AI-driven decision-making into the product. Experiment with vector databases (Weaviate, Pinecone, FAISS) to enhance model retrieval capabilities. Build and optimise UI Components - Work with Storybook and component-driven … development to create a reusable, scalable design system that ensures consistency, accessibility, and responsiveness across the platform. Collaborate with the Product Lead to refine UI/UX based on real-time user feedback and behavioural analytics. Ensure Security, Testing & Performance Optimisation – Implement SOC 2-compliant security best practices, including data encryption, role-based access control (RBAC), and secure API More ❯

D&A systems and the wider technology architecture. 1. Data & Analytics (D&A) Infrastructure Management: Develop, maintain, and optimize the D&A architecture on AWS and Azure, including the design, deployment, and maintenance of the cloud based Pladis' data platform (PDP). Deliver an architecture that's globally scalable, agile, and supportive of digital services through Data and Insights … as a service via APIs. 2. Data Technology Capability Enhancement: Design and oversee the implementation of the PDP 2.0 Tech stack. Design and oversee data architecture to harmonise external, internal and Microsoft Graph data to deliver AI use cases Champion engineering standards and ensure new engineers' quick integration and productivity. Lead engineering problem solving and provide technical guidance … with latest AI and ML trends to keep the company at the technological forefront. Lay down AI architectural standards, best practices, and guidelines for system design. 5. AI Solutions Design and Integration: Design AI solutions that are robust, scalable, and in line with business requirements. Integrate generalized AI models into business processes and ensure they harmonize with existing More ❯

in Agile Release Trains (ARTs) - Jira and ArchiMate. BROADER ROLE PROFILE: You will Head up and take the lead for: Developing enterprise-wide architectural standards - Coding standards (e.g., REST API design principles), security protocols (e.g., OAuth 2.0, encryption standards), and data models (e.g., canonical data models for client data). Frameworks for Technology Reference Architecture outlining approved technologies … Ensure adherence to financial regulations (e.g., FCA/PRA rules, GDPR for client data) and internal policies for customer-facing systems like brokerage platforms. Establish metrics (e.g., system uptime, API response times) to monitor the quality of systems and enforce consistency. CANDIDATE REQUIREMENTS: Proven track record of leading globally distributed architecture or technology teams, ideally in a large, complex … understanding of domain-specific challenges like regulatory compliance. Deep expertise in enterprise architecture principles, including creating standards and frameworks. Familiarity with modern architecture practices, such as microservices, domain-driven design, or event-driven architecture. Understanding of Agile methodologies and how to integrate architecture into Agile processes. Awareness of global financial regulations. (FCA and PRA) Experience with Trading Platforms Proprietary More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯

server environment, contributing to both backend and frontend development while leveraging modern cloud technologies. Key Responsibilities Develop and maintain full-stack web applications using PHP and modern frontend technologies Design and implement scalable solutions in multi-server environments Work with AWS cloud services to build robust, distributed systems Optimize database performance and design efficient data structures Implement and … making Required Skills & ExperienceBackend Development 5+ years of PHP development experience Expert-level Laravel framework knowledge Strong understanding of full HTTP workflow in multi-server environments Experience with RESTful API design and implementation Proficiency in both MySQL and PostgreSQL databases System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process management) Hands-on experience with … CDN implementation Experience with containerization (Docker) and orchestration tools Frontend Development Proficiency in modern JavaScript (ES6+) Experience with frontend frameworks (React, Vue.js, or similar) Strong HTML5, CSS3, and responsive design skills Understanding of build tools and asset compilation General Requirements Strong problem-solving and analytical skills Experience with version control systems (Git) Knowledge of testing frameworks (PHPUnit, Jest, etc. More ❯