Top Remote Full-Stack Engineer Jobs in Seattle, WA

Build and maintain full-stack applications for a maritime data management and AI platform. Responsibilities include developing frontend components, real-time WebGPU data feeds, PostgreSQL and Apache Iceberg data models, MQTT and Redpanda pipelines, Dagster batch workflows, machine learning integrations, and CI/CD tooling. The role supports mission-critical products used with U.S. Navy sonar and sonobuoy data.

Design, build and maintain Microsoft Cloud applications using Power Apps/Pages and Azure services. Implement Entra ID authentication, Azure Functions/App Services, Logic Apps and Blob storage. Create Azure Data Factory pipelines and APIs (REST/GraphQL), integrate external services and LLM data pipelines, and ensure performance, security, and scalability while collaborating with customers to turn requirements into streamlined apps.

Build and scale full-stack applications using Ruby on Rails, React, PostgreSQL, Docker, Kubernetes, and Terraform. Design APIs, data architectures, synchronization systems, infrastructure, and CI/CD pipelines for secure, reliable operation in disconnected and low-bandwidth environments. Collaborate across engineering, business development, and mission teams while supporting critical defense and public safety operations.

Build and operate scalable, accessible, high-performance web experiences for Calendly’s marketing website and Help Center. Own projects from technical design through deployment and iteration, develop frontend architecture and CMS integrations, improve SEO, AEO, accessibility, Core Web Vitals, and reliability, and collaborate with Marketing, Content, SEO, Design, Product, and Engineering. Provide technical leadership through testing, code reviews, documentation, mentorship, and architectural improvements.

Own and evolve scalable distributed systems, REST APIs, backend services, and core product areas. Design solutions, improve resilience, reduce technical debt, and drive modularization. Use AI-first and agentic development practices, evaluate emerging AI tools, and help integrate AI across engineering workflows. Collaborate asynchronously with product, data, and go-to-market teams while improving engineering tools, processes, and system reliability.

Build end-to-end user features under senior guidance: implement REST endpoints in Node.js/TypeScript, microservices in Python, maintain PostgreSQL schemas, process background jobs with QStash/Upstash, deploy to Cloudflare Workers/Pages/R2, write tests, and collaborate with product/design on React UI components.

Build and maintain end-to-end features across backend (Node.js/TypeScript, Python) and frontend (React/TypeScript). Model Postgres schemas, integrate queues (QStash/Upstash), deploy on Cloudflare edge, write tests, enforce CI/CD, and harden systems for security and performance in regulated environments.

Build and maintain core products and collaborate on larger consulting projects using TypeScript, Python, FastAPI, Next.js, GCP, and generative AI frameworks. The role involves hands-on software development within a rapidly growing, remote team serving Saudi Arabia and the GCC.

Design and implement backend features in Go, build data pipelines and REST APIs, work with PostgreSQL and AWS, contribute to scalable system design, and optionally develop React.js user-facing features while collaborating in a fast-paced AI-focused startup.

Design, build, and optimize scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Join as the founding full-stack engineer to extend a TypeScript React/Next.js prototype, design product features, integrate AI/OCR, write tests and infrastructure, talk to users, and iterate quickly to drive growth.

Work on front-end and back-end web projects: create and redesign websites, build sitemaps and wireframes, collaborate with teams, and focus on UI/UX and performant back-end functionality.

Lead the technical vision and delivery of high-performance APIs and patient and provider web experiences using Ruby on Rails and React. Collaborate with Product, Design, and Engineering to deliver scalable features, improve development and testing standards, and balance user experience with maintainable code. Responsibilities include backend API architecture, frontend performance, automated testing, deployment pipelines, on-call support, and protecting user data.

Work across AI, backend, and frontend: curate and clean writing datasets, fine-tune large language models, run training experiments, develop metrics and eval sets, build backend services in Python/Django, and implement frontend features with React.

Build full-stack Real User Monitoring features across frontend applications, backend services, APIs, and analytical storage systems. Design high-throughput telemetry ingestion, storage, querying, data models, and indexing strategies. Develop data-heavy user interfaces, optimize performance and costs, collaborate with SDK and cross-functional teams, and own projects from design through deployment, monitoring, testing, and iteration.

Leads the technical design and delivery of full-stack web features for AI products, spanning data models, APIs, responsive interfaces, testing, deployment, cloud infrastructure, and ongoing operations. Builds and optimizes Python API applications, integrates Azure data and DevOps services, improves system reliability and performance, and supports security and CI/CD practices. Partners with product, design, data science, and machine learning teams while mentoring engineers and guiding architectural decisions.

Build and ship end-to-end product features across an author analytics dashboard, marketing site, free tools, billing, email, and AI-assisted functionality. Design data models and APIs, integrate third-party services, develop production LLM features, and maintain testing, monitoring, performance, and observability. The role includes code review, technical documentation, independent product decisions, and close collaboration with the founder in a remote-first environment.

Build and maintain Java backend services, REST APIs, and full-stack web application features. Develop frontend functionality with modern JavaScript frameworks, use Python for supporting work, and leverage AI coding tools such as Claude Code. Write tests, debug issues, support deployment and maintenance, and collaborate on design decisions, code reviews, and application quality improvements.

Own fullstack development for Broad Arrow Auctions across customer-facing auction experiences and internal live-auction tools. Build scalable web applications, APIs, integrations, automated tests, and cloud infrastructure using Azure and AWS. Maintain Billboard auction software, integrate Microsoft Dynamics 365, monitor production systems, participate in on-call support, contribute to architecture, improve reliability and performance, and mentor less experienced engineers.

Build and scale full-stack applications, backend services, APIs, infrastructure, and user experiences supporting millions of users. Design reliable, high-performance systems; partner with Product, Design, and Data; own projects through deployment and optimization; improve observability and developer productivity; and support AI adoption through automation and AI-powered workflows.

Build and evolve scalable full-stack products using React, TypeScript, Next.js, Python, and Django. Own frontend and backend architecture, APIs, testing, CI/CD, observability, performance, and reliability. Collaborate with Product and Design, lead technical initiatives, identify risks, define solutions in ambiguous environments, and mentor engineers. Develop 0-to-1 experiences and production systems across cloud-based environments while establishing engineering standards and monitoring technical and product metrics.

Build and maintain full-stack features for Vanta’s third-party risk management products, including vendor onboarding, lifecycle management, monitoring workflows, data models, and platform abstractions. Write tested code, participate in reviews and architecture decisions, and collaborate with product, design, and engineering teams to deliver customer-facing functionality. Experience with TypeScript, React or Node.js, web applications, databases, and REST or GraphQL APIs is expected.

Lead development of secure, scalable digital banking software across front-end and backend systems. Design Angular or React applications, build APIs, optimize SQL performance, integrate third-party platforms, improve code quality, implement testing strategies, and mentor engineers. Collaborate with cross-functional teams in an Agile environment while supporting cloud-native practices, regulatory compliance, and continuous product improvement.

Develop and maintain full-stack features for CMS’s Unified Case Management system. Responsibilities include building Java and Spring Boot backend services, APIs, data models, Angular or React interfaces, database interactions, and automated tests using test-driven development. The engineer will optimize performance, scalability, security, and data integrity; collaborate on system design and integration; reduce technical debt; and support teammates in a remote-first environment.