1 to 25 of 352 API Design Jobs

Java Solution Architect - Lansing, MI

Hiring Organisation
Digital Technology Solutions
Location
Michigan, United States
Employment Type
Permanent
Salary
USD Annual
Kubernetes Proven experience with Kafka or other messaging platforms, including enterprise integration patterns Solid understanding and practical application of DDD, CQRS, Saga patterns, and API design best practices Role description: Job Summary: We are seeking an experienced Solution Architect to design and deliver scalable, cloud-native solutions … event-driven architectures. The role focuses on building resilient distributed systems, enabling enterprise modernization, and driving high-quality technical delivery across platforms. Job Responsibilities: Design end-to-end architecture for scalable microservices and distributed systems Drive monolith to microservices modernization using DDD and API-first principles Architect event ...

Senior Software Engineer

Hiring Organisation
Tiro Partners
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £120000/annum
Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Senior Software Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £120,000 per annum
Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Java Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £120,000 per annum
Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Company: Financial Services Location: London - Hybrid 3 days per week CORE BANKING AND TRADING SYSTEMS EXPERIENCE ESSENTIAL Join a newly formed Service Modernisation & AI team driving AI-first software development in financial services. … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Software Engineering - Application Developer

Hiring Organisation
Mastech Digital
Location
Seattle, Washington, United States
Employment Type
Permanent
Salary
USD Annual
Engineering - Application Developer Primary Skills: JavaScript Role Description: The Software Engineering - Application Developer must have 4+ years of experience. Primary Job Duties/Responsibilities: - Design and Implement Communications Components, Applications and Services - Partner with the Satellite, Networks and Security engineering teams - Design components, services, and relevant data models … Collaborate with engineers across the organization to gather requirements, design, develop, deploy, and operate critical e-Commerce software. - Work on initiatives building e-Commerce functions on AWS infrastructure and help implement best practices for software development. - Develop code, build CI/CD pipelines, test automation, and dashboards for monitoring ...

Full Stack Engineer (Java Development / API testing)

Hiring Organisation
Eliassen Group
Location
Merrimack, New Hampshire, United States
Employment Type
Permanent
Salary
USD Annual
senior full stack engineer to build, test, and engineer REST APIs for a data platform. The role requires strong Java and Spring Boot skills, API design expertise, and experience deploying and supporting applications on AWS. You will contribute to strategic roadmaps, collaborate in an agile environment, and support … benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $65.00 to $70.00/hr. w2 Responsibilities: Design, develop, and maintain REST APIs using Java and Spring Boot Build and support applications deployed in AWS Follow Domain Driven Design principles ...

Backend Data Engineer -PHP, APIs & ETL

Hiring Organisation
HTC Global Services Inc
Location
Phoenix, Arizona, United States
Employment Type
Permanent
Salary
USD Annual
Data Engineer to build and support backend services, data pipelines, and database structures for the Public Health Data Portal. This role focuses on RESTful API development, ETL pipelines, synchronization processes, and multi-store database design to support both public-facing and administrative capabilities. You will collaborate with cross … functional teams to deliver a secure, scalable, and maintainable data foundation. Key Responsibilities Backend API & Service Development Design and develop RESTful API services for data retrieval, metadata management, content management, authentication, audit logging, export generation, and data synchronization Implement authentication filters, rate limiting, request logging, and standardized ...

Senior Web Application Developer ASP.NET MVC 5, C#, & React

Hiring Organisation
PCR Digital
Location
Hammersmith, London, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £538/day Inside IR35 to Umbrella
years of Web application development experience consisting of strong C#, ASP.NET MVC 5, and React. Strong knowledge of Object-Oriented Programming, SOLID principles, common design patterns and RESTful API design and integration (experience with SOAP WebServices and XML/XPat) also required. We are looking … Server, Entity Framework, and React experience desirable to have HTML5, CSS3, JavaScript, jQuery. * Strong knowledge of Object-Oriented Programming, SOLID principles, and common design patterns. * Experienced in RESTful API design and integration; experience with SOAP WebServices and XML/XPath. * Skilled in using IoC containers (Autofac, Ninject ...

Senior Software Engineer

Hiring Organisation
Sharetec
Location
Fort Wayne, Indiana, United States
Employment Type
Permanent
Salary
USD Annual
join our Digital team as a core full stack builder and technical owner. You'll work alongside a close-knit team of engineers to design, build, and maintain the products and platform that power Sharetec's Digital Banking experience - serving hundreds of credit union customers and their members. This … contribute directly to significant product modernization initiatives, deliver features across our Digital Banking applications, and play a key role in architecting a new API layer that will expand the capabilities of Sharetec's Digital Banking platform. If you thrive in a remote, collaborative environment where you own your work ...

Staff Engineer Application Architect

Hiring Organisation
Facility Grid LLC
Location
Waltham, Massachusetts, United States
Employment Type
Permanent
Salary
USD Annual
Leadership Own the application architecture across backend, frontend, and service layers Evolve and maintain the layered patterns and conventions that govern the codebase Drive API design decisions across versioned REST endpoints Author and maintain Technical Design Documents for significant system changes Evaluate build-vs-buy decisions … proposals Establish and enforce coding standards, testing strategies, and review practices Application Development Contribute production code in PHP/Laravel and TypeScript/Angular Design data models, migrations, and schema evolution strategies Architect integration patterns for external platforms and third-party APIs Design frontend state management and data ...

Senior Software Engineer

Hiring Organisation
Circadia Health
Location
Los Angeles, California, United States
Employment Type
Permanent
Salary
USD Annual
frontend performance using techniques like lazy loading, code splitting, and caching. Ensure cross-browser compatibility and adherence to WCAG guidelines for accessibility. Backend/API Development: Design, develop, and maintain RESTful APIs using Python (FastAPI) to support healthcare applications. Collaborate with frontend and mobile developers to integrate APIs … Security and Compliance: Implement and maintain security measures to protect sensitive healthcare data. Ensure compliance with healthcare regulations, including HIPAA. Regularly update and patch API endpoints to address vulnerabilities. Documentation and Collaboration: Create and maintain comprehensive documentation for APIs, workflows, and best practices. Maintain detailed change logs, version histories ...

Senior Software Engineer - Cloud (Backend & Distributed Systems)

Hiring Organisation
Vertex Software, Inc
Location
Des Moines, Iowa, United States
Employment Type
Permanent
Salary
USD Annual
complex enterprise programs, operational excellence and deployment reliability are critical to our success. The Role Vertex is seeking a Senior Software Engineer Cloud to design and evolve the core backend services powering our enterprise 3D collaboration platform. You will: Architect and scale distributed cloud services that support mission-critical … enterprise deployments Lead scalable and optimized backend design decisions across APIs, data stores, messaging systems, and microservices Drive engineering quality, observability, and reliability standards Contribute to long-term platform evolution, not just short-term delivery This role is ideal for an experienced backend engineer who thinks in systems, understands ...

Senior Software Engineer

Hiring Organisation
Expedia Group
Location
City of London, London, United Kingdom
across Expedia’s white-label and partner platforms. We’re building the next generation of video ad infrastructure, AI-powered tooling, and Rapid API integrations to deliver smarter, more engaging ad experiences. In this role, you will: Design, implement, and evolve high-quality software services and components, including … system design, low-level design, API design, and data modeling to support scalable, reliable products. Lead end-to-end delivery of complex technical features across services or domains, including requirements clarification, solution design, development, testing, deployment, and ongoing operational support. Collaborate closely with product, architecture ...

Software Development Engineer

Hiring Organisation
Jiffy
Location
San Francisco, California, United States
Employment Type
Permanent
Salary
USD Annual
hands-on experience orchestrating AI coding agents to ship production software at pace. Reporting directly to an Engineering Manager and working closely with Product, Design, and other engineering teams, you will lead the charge on delivering end-to-end features across our e-commerce platform from storefront and checkout … clear specifications, decompose work into agent-executable plans, drive agents through implementation, review every diff critically, run QA, land PRs, and verify production health. Design and architect scalable, reliable systems across our stack Rails 8/Solidus e-commerce, GraphQL APIs, React 19 front end, Kubernetes infrastructure holding ...

Backend AI Architect - API Design, Cloud Native, AWS, DevEx, CI/CD

Hiring Organisation
Talent Search PRO
Location
Reston, Virginia, United States
Employment Type
Permanent
Salary
USD Annual
event driven architectures. • Proven expertise defining service architecture strategies, including APIs, data contracts, and runtime platforms across multiple teams. • Deep understanding of system design fundamentals such as consistency models, caching strategies, resilience patterns, and fault tolerance. • Hands on experience with at least one major backend ecosystem: Node.js/TypeScript … Strong understanding of prompt engineering, evaluation techniques, and AI quality metrics. • Experience architecting inference systems, including routing, batching, caching, and cost optimization. • Ability to design intelligent service flows, including Retrieval Augmented Generation (RAG) and agent based architectures. • Familiarity with AI safety, governance, and responsible AI principles. • Experience developing ...

Backend Developer

Hiring Organisation
Trinity Global Consulting
Location
Springfield, Virginia, United States
Employment Type
Permanent
Salary
USD Annual
Build connectors and ingestion pipelines across diverse enterprise data sources Support deployments across cloud-native and on-premises environments Improve reliability and performance through API design, testing, monitoring, and observability Collaborate with platform, DevOps, and GIS teams to translate requirements into production solutions Requirements Required Qualifications: Bachelor … workflows, proxies, middleware services, and automation of GIS/data processing tasks Experience working in containerized environments (Docker, Kubernetes, or similar) Solid fundamentals in API design, software/system design, and testing/debugging distributed services US Citizenship required Active or current (within two years of active ...

Staff Software Engineer

Hiring Organisation
Expert Institute
Location
Milwaukee, Wisconsin, United States
Employment Type
Permanent
Salary
USD Annual
ready to expand their scope-influencing systems, teams, and the technical strategy of the company. You'll partner directly with engineering leadership, Product, and Design to translate ambitious business goals into resilient, scalable technical realities. What You'll Do Architect and lead the design of complex, distributed systems … strategy across multiple teams and services-setting standards for reliability, performance, security, and developer experience Own our AWS cloud infrastructure end-to-end: VPC design, compute (ECS/EKS/Lambda), data stores (RDS, DynamoDB, S3), networking, IAM, observability, and cost optimization Design and evolve our data platform ...

Staff Software Engineer

Hiring Organisation
Expert Institute
Location
New York City, New York, United States
Employment Type
Permanent
Salary
USD Annual
ready to expand their scope-influencing systems, teams, and the technical strategy of the company. You'll partner directly with engineering leadership, Product, and Design to translate ambitious business goals into resilient, scalable technical realities. What You'll Do Architect and lead the design of complex, distributed systems … strategy across multiple teams and services-setting standards for reliability, performance, security, and developer experience Own our AWS cloud infrastructure end-to-end: VPC design, compute (ECS/EKS/Lambda), data stores (RDS, DynamoDB, S3), networking, IAM, observability, and cost optimization Design and evolve our data platform ...

Software Engineer, DevSecOps

Hiring Organisation
IMPYRIAN
Location
Ashburn, Virginia, United States
Employment Type
Permanent
Salary
USD Annual
engineering, system architecture, and DevOps practices. This role requires someone who thrives in both big-picture enterprise planning and hands-on project-level solution design, ensuring consistency, scalability, and alignment across the organization. The perfect candidate is a full stack engineer, passionate about designing robust software solutions, coaching engineering … must exhibit leadership and understand multiple solution architectures and be able to establish and articulate the vision behind an enterprise architecture solution. Architect & Innovate Design end-to-end software architectures including microservices, APIs, messaging patterns, and distributed systems. Lead application modernization efforts (monolith microservices, on-prem cloud, legacy containerized ...

Senior Data Engineer, Predictive Modeling

Hiring Organisation
Carvana
Location
Tempe, Arizona, United States
Employment Type
Permanent
Salary
USD Annual
Python code from Data Scientists and Analysts, transforming experimental notebooks into reliable, maintainable, and production-ready applications with proper testing, error handling, and documentation. Design, architect, and maintain robust, scalable predictive modeling data pipelines across our data science ecosystem. Design, develop, and maintain internal tooling that accelerates productivity … RESTful services. Apply software engineering best practices including code reviews, version control, testing frameworks, and continuous integration to ensure high-quality, maintainable codebases. Design and develop high-availability applications using technologies like Docker and Kubernetes with focus on scalability, reliability, and observability. Develop comprehensive solutions for application logging, error ...

Staff Software Engineer

Hiring Organisation
TechChain Talent
Location
San Francisco, California, United States
Employment Type
Permanent
Salary
USD Annual
secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols; collaborating with Product and Engineering teams to design, test, and shape their features, including developing and documenting system design procedures, testing procedures, and quality standards; troubleshooting program and system malfunctions … field (or foreign equivalent). C. Technical leadership of teams >4 on architecture and system design. D. Expert in one of the domains of API design, payments processing, or blockchains. Deep understanding/experience with: - Architecture, design, and deployment of production-quality, scalable software - Web3, blockchain, smart ...

Backend Developer

Hiring Organisation
Duetti
Location
New York City, New York, United States
Employment Type
Permanent
Salary
USD Annual
cloud to transform the music industry. We offer a competitive compensation and benefits package, along with opportunities for professional development and growth. You Will: Design, develop, and maintain scalable and robust back-end systems to support data processing, analysis, and API services. Collaborate with front-end developers … cross-functional teams to integrate server-side logic with user-facing elements. Design and implement secure, scalable APIs to facilitate communication between services. Contribute to the design and optimization of our cloud-based architecture, ensuring reliable and secure operations. Implement cloud-based services and technologies to support efficient ...

Staff Software Engineer - Rust and Distributed Systems (Bay Area, hybrid)

Hiring Organisation
Fortanix
Location
Santa Clara, California, United States
Employment Type
Permanent
Salary
USD Annual
safer digital future. Requirements We're looking for a Staff Software Engineer to join our Confidential Computing Management team-an engineer who can design, build, and own core platform services powering secure, distributed systems at scale. This is a high-impact, hands-on technical leadership role . … shape architecture, lead critical design decisions, and build microservices that are foundational to how our platform operates-ensuring they are secure by design, highly reliable, and built to scale . What You'll Do Design and build distributed microservices that power Fortanix's confidential computing platform across ...

Senior Full Stack Developer

Hiring Organisation
Affinity Plus Federal Credit Union
Location
Saint Paul, Minnesota, United States
Employment Type
Permanent
Salary
USD Annual
Full Stack Developer will partner with other areas within the organization to help streamline the automation pipeline for development. Duties and Responsibilities: Perform analysis, design, programming, configuration functions, and define technical requirements Analyze, resolve and document software errors Conducts product technical design, architecting, and prototyping, software development … verification and resolution Defines and strategizes API Design & API Management including self-service capabilities Explores possibilities of organizational owned API and SDK opportunities. Links business processes to custom development possibilities In partnership with IT Management, develop and lead the Software Development Life Cycle (SDLC) Bring technology ...

Software Engineer II (Contract)

Hiring Organisation
Blue Star Partners LLC
Location
Los Angeles, California, United States
Employment Type
Permanent
Salary
USD Annual
software systems designed to store and manage data for clinical studies. The ideal candidate will have experience working with modern web development, database architecture, API design, and cloud infrastructures in an Agile environment. Key Responsibilities Develop and maintain web-based software solutions for managing clinical study data. Architect … design database models to optimize data storage and retrieval. Build and maintain APIs for secure and efficient data exchange. Work with cloud infrastructures such as Azure to deploy and manage software applications. Utilize JavaScript frameworks (e.g., Angular, React ) for front-end development. Ensure adherence to Agile methodologies for software ...