Top Remote Senior Full-Stack Engineer Jobs in Seattle, WA

As a Senior Full-Stack Engineer, lead development of secure AI-driven SaaS applications, focusing on backend architecture, frontend design, and AI integrations. Collaborate with teams to operationalize models and enhance application functionality through cutting-edge AI solutions.

As a Senior Full-Stack Engineer, you will develop and improve features for a digital clinic, ensuring quality patient care and software reliability across the stack including React and NestJS.

Design and implement AI-powered backend systems for media experiences in Dropbox, collaborating with cross-functional teams, and influencing technical decisions.

The Senior Full Stack Engineer maintains, enhances, and modernizes applications, ensuring performance and stability while mentoring offshore teams and improving existing systems.

Design, develop, and deliver high-quality financial applications; oversee release management, mentor developers, and enforce best practices in software development.

As a Senior Full Stack Engineer, you'll develop and maintain features, expand product lines, and innovate in security infrastructure with AI. You'll work closely with the CTO and engage directly with customers to enhance the platform.

Lead the development of user-facing applications and backend systems, ensure best practices, mentor junior developers, and collaborate with stakeholders on product initiatives.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

As a Full Stack Engineer, you will lead innovative software projects for freight logistics, driving technical vision, mentoring others, and delivering scalable solutions across platforms.

Lead full-stack projects, collaborate with teams to develop user-friendly features, mentor teammates, and handle on-call duties at Dropbox DocSend.

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

Lead UI-focused full-stack development: build high-performance Angular components, implement responsive accessible interfaces from design mockups, optimize front-end performance, influence component libraries and front-end architecture, and contribute to back-end .NET Core APIs and database integration.

As a Senior Full Stack Engineer, you'll design and develop custom Shopify applications, integrate solutions, and collaborate with clients to meet their needs.

As a Senior Full Stack Engineer, you'll build high-performance observability tools, engage with developers, and tackle technical challenges in monitoring applications.

Join Feed Media Group as a Full Stack Engineer to build new features for music streaming applications, collaborating with diverse teams and using modern technologies.

The Senior Full-Stack Engineer will oversee full-stack application development, perform code reviews, collaborate with teams, and ensure high-quality outcomes.

This role involves designing and developing scalable web applications, leading projects, mentoring engineers, and ensuring quality through best practices and collaboration.

Lead full-stack development of email and web services, design scalable architectures, monitor and improve email delivery and sender reputation, build prototypes, ensure reliability and security, participate in on-call rotation, and collaborate with designers and product teams.

Lead full-stack development and architecture for accounts and email services. Build prototypes and features, monitor email delivery and sender reputation, diagnose service issues, improve security/logging/performance/accessibility, conduct code reviews, collaborate on product and design, and participate in a shared on-call rotation to maintain reliable services.

Lead design and implementation of enterprise integrations and backend systems (APIs, microservices) using Azure/GCP, NestJS, and React. Architect solutions, improve platform stability, define CI/CD and DevOps processes, collaborate cross-functionally, and maintain database and performance optimizations.

Develop and optimize web applications, APIs, and backend services. Collaborate cross-functionally and take ownership of features from concept to deployment.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

As a Senior Full Stack Engineer, you will architect multi-tenant infrastructure, design event-driven pipelines, maintain technical architecture, lead AI-native engineering, and drive product discovery with technical curiosity.

As a Senior Full Stack Engineer, you will drive the evolution of the Partner Platform, focusing on CRM integrations, big data visualizations, and AI workflows, optimizing backend services and enhancing data handling for performance and speed.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.