Top Full-Stack Engineer Jobs in Seattle, WA

Design and implement backend services and high-scale data pipelines to ingest, enrich, index, and serve billions of records. Own features end-to-end, write testable efficient code, contribute to architecture, perform code reviews, support production (deployments, troubleshooting, incidents), and apply AI/LLM tooling to improve development and delivery.

Lead design and delivery of scalable Data Marketplace features across APIs, backend services, and user workflows. Own medium-to-large initiatives from design to production, improve reliability and observability, drive architecture, mentor engineers, and collaborate with Product, Design, and Infrastructure. Contribute to AI-forward marketplace experiences and ensure code quality, testing, and operational excellence.

Design, build, and maintain backend services and large-scale data pipelines that ingest, transform, enrich, and index billions of records. Own features end-to-end, contribute to architecture, write testable performant code, perform reviews, support production systems, and collaborate with product and data science teams. Apply AI/LLM tooling to improve development and delivery.

Lead a small engineering team while writing production Java backend code daily. Design and own data ingestion, enrichment, entity resolution, and search-indexing systems. Ensure reliability, performance, observability, and technical quality; mentor engineers; collaborate with product and partners; drive down technical debt; use cloud, containerization, and CI/CD best practices to deliver scalable services.

Senior Full Stack Java Developer to build and maintain enterprise-grade backend and UI applications. Collaborate with offshore teams; develop using Java, Spring Boot, Hibernate, ReactJS, Servlets/JSP; implement REST/SOAP services, database access, XML transformations, and unit tests; follow Agile and CI/CD practices.

Responsible for leading a team of engineers, supporting product development, identifying technical issues, and ensuring high-quality code delivery in backend systems at scale.

Design, build, and maintain scalable Angular front-ends and Java back-ends, contribute to Azure cloud migration, ensure application security and ITAR compliance, collaborate in Agile teams, and support infrastructure and DevOps practices.

The Founding Senior Engineer (Full Stack) will build features, drive projects from discovery to deployment, and integrate AI capabilities in client projects.

Design, architect, and build scalable full-stack software (booking, forms, payments) across product areas. Own cross-functional projects end-to-end, partner with engineering leaders and product managers, and solve high-impact problems while communicating technical work to stakeholders.

As a Senior Full Stack Software Engineer, you will design, build, and operate services and user interfaces for Nordstrom's product data ecosystem, focusing on microservices and React applications to manage catalogs and data integrity.

Build and own end-to-end full-stack features across backend services and user-facing applications. Contribute to system design, reliability, performance, observability, and engineering practices while collaborating with product and design.

Lead design and implementation of the PSA Liquidity Platform connecting buyers and sellers. Build buyer tooling, matching/ranking engines, and seller experiences. Architect and operate microservices and Kafka-driven systems on Kubernetes/AWS, instrument observability, apply AI tooling across the SDLC, and drive cross-functional delivery from 0-to-1 while owning end-to-end outcomes.

Develop and enhance product features, specifically focusing on third-party integrations and application management while ensuring scalability and improving customer experiences.

Own end-to-end mobile features across iOS/Android and backend services: design, implement, ship, and operate native clients and APIs. Ensure performance, reliability, security, testing, and release pipelines; participate in architecture decisions and incident response; mentor engineers and improve mobile developer experience.

Own end-to-end full-stack web features spanning TypeScript React front-ends and JVM (Kotlin/Java) backends. Design and implement APIs/services (REST/gRPC), data models, auth/onboarding flows, and admin/authoring surfaces. Ensure performance, reliability, security, observability, and test coverage. Lead architecture, RFCs, incident response, and mentor other engineers while collaborating across product, design, and infrastructure.

Develop and maintain full-stack .NET web applications in the telecom domain. Responsibilities include prototyping, implementation, deployment, integration with QA/production, database development with SQL Server/T-SQL, use of frontend frameworks (jQuery/AngularJS/Node.js), source control, SDLC/ALM practices, and WF/WCF development.

Develop and maintain full-stack .NET applications using C#, ASP.NET (MVC/MVVM), WCF, and SQL Server. Implement front-end features with AngularJS, jQuery, HTML5, CSS3, KnockoutJS and related UI technologies. Participate in code reviews, resolve technical issues, lead small teams, and work in a global delivery environment. Azure and CRM domain experience preferred; strong communication and analytical skills required.

Develop and maintain full-stack .NET applications using C#, ASP.NET, MVC/MVVM and SQL Server; build UI with AngularJS/jQuery/HTML5/CSS3; work on Azure and CRM projects; lead small teams, resolve technical issues, and collaborate with global stakeholders.

Design, develop, and maintain full-stack .NET applications using C#, ASP.NET, MVC/MVVM, WCF and SQL Server. Implement front-end features with jQuery/Angular/HTML5/CSS3/Knockout and Razor. Work on Azure deployments, resolve technical issues, and lead small development tasks. Collaborate across global stakeholders and communicate with team members; occasional travel may be required.

Full‑stack .NET developer responsible for building and maintaining C#/ASP.NET applications and front‑end UI (AngularJS, jQuery, HTML5/CSS3). Work includes MVC/MVVM patterns, WCF, SQL Server, Azure deployment, occasional team‑lead duties, CRM domain work, and collaborating in a global delivery environment. Good communication and analytical skills required; travel may be needed.

Senior full-stack developer role requiring 5+ years experience building applications with Angular and Java. Must have finance-domain background, knowledge of risk and compliance governance, and experience with graph databases. Automation project experience is a plus; candidate should be motivated and innovative.

Senior full-stack developer responsible for end-to-end web development using ASP.NET and AngularJS. Must write strong C# code, solve complex problems, and deliver E2E web solutions.

Lead the architecture and delivery of high-scale web products across frontend and backend services, mentoring engineers, and improving code quality. Collaborate to enhance AI infrastructure for efficient research management.

The Full Stack Software Engineer will develop and maintain front-end and back-end components, focusing on APIs, database models, and integration services, while collaborating closely with the team.

Hands-on full stack role building scalable, fault-tolerant backend services, distributed storage/indexing/query systems, and cloud infrastructure. Translate ambiguous problems into concrete solutions, work across backend, data, and cloud layers, collaborate in agile sprints, and deliver iterative production software.