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15 senior fullstack engineer jobs at 13 companies in Washington

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Fullstack Senior Software Engineer
Austin or Bellevue
$111k-$172k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
3+ YOESenior software engineer with front-end and back-end expertise; strong collaboration and problem-solving skills; 3+ years for Bachelor’s or 5+ years experience alternative.
HTML, Java, C++, C#, CSS, JavaScript, Python, APIs, Angular, React, Kubernetes, Docker, Git
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1w
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Data and AI Fullstack Engineer
Bellevue or Charlotte
$110k-$198k/yr HybridFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
12+ YOESenior full‑stack engineer with extensive experience building cloud‑native microservices, data and AI platforms, RAG/Agentic AI knowledge, AWS experience, and mentoring/technical leadership skills.
Python, Java, TypeScript, NodeJS, AWS, EKS, SQS, Bedrock, Agent Core, SageMaker, Strands, Langgraph, LangChain, FastAPI, Open Telemetry, GitLab, npm, SonarQube, Terraform, Helm, Postman, Newman, JMeter, SQL, NoSQL
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2w
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Senior Fullstack Software Engineer
Seattle, Washington, United States
$159k-$192k/yr OnsiteFull Time
LiveView Technologies
LiveView Technologies: Provides mobile, solar-powered security units with AI-driven surveillance software.
5+ YOE5+ years professional development experience with full-stack TypeScript, React/Next.js, Node.js (NestJS preferred), GraphQL/Apollo, relational databases (MySQL), WebSockets, Docker, and modern CI/CD; strong communication and mentorship skills.
TypeScript, React, Next.js, App Router, server actions, Node.js, NestJS, Apollo Server, GraphQL, REST, MySQL, Knex, WebSockets, OAuth, OIDC, JWT, Docker, CI/CD
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3mo
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Software Engineer, Fullstack
Seattle, Washington, United States
$105k-$200k/yr HybridFull Time
QXO
QXONYSE: QXO: Tech-enabled distributor of building materials and products.
2+ YOE2–5 years software engineering; OO languages; React/Next.js/TypeScript; cloud experience; BS in CS/Engineering; strong collaboration.
Java, Kotlin, Go, React, Next.js, TypeScript, AWS, GCP, CI/CD, observability, performance tuning tools
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2mo
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Senior Software Engineer - Fullstack
Seattle, Washington, United States
$180k-$220k/yr HybridFull Time
Read AI
Read AI: AI productivity platform for meeting summaries and workplace insights.
6+ YOE6+ years in software engineering; strong React/TypeScript frontend; backend with Node.js/Java or Python; AWS; SQL and NoSQL databases; distributed systems; mentorship and devops mindset.
React, TypeScript, Node.js, Java, Python, AWS, SQL, NoSQL, REST, GraphQL, CI/CD, Docker, Kubernetes
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4d
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Senior Fullstack Software Development Engineer
Seattle, Washington, United States
$180k-$225k/yr HybridFull Time
Remitly
RemitlyNASDAQ: RELY: Provides digital cross-border money transfer services for global customers.
6+ YOE6+ years software development, 3+ years React/React Native, proficiency with TypeScript/JavaScript/Java/Kotlin/Go/Python, distributed systems experience, cloud (AWS/GCP/Azure), AI tool usage, on-call participation.
TypeScript, React, React Native, Java, Kotlin, Go, Python, JavaScript, AWS, GCP, Azure, Claude Code
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2mo
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Senior Software Engineer, Fullstack
Seattle, Washington, United States
$126k-$189k/yr OnsiteFull Time
Allen Institute for Artificial Intelligence
Allen Institute for Artificial Intelligence: Non-profit institute developing open-source artificial intelligence for scientific impact.
8+ YOE8+ years software development; JavaScript/HTML/CSS; Python; React; cloud platforms (AWS or Google Cloud); analytics/observability tools; AI-enabled applications; strong communication.
React, Python, AWS, Google Cloud, Datadog, Heap
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2mo
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Fullstack Staff Software Engineer
Austin or Bellevue
$132k-$210k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
5+ YOE5+ years with a Bachelor's or 2+ years with an Advanced degree; or 0 years with a PhD; 8+ years total experience with relevant roles.
HTML, C++, Java, Angular, React, Kubernetes, Docker
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2w
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Senior Software Engineer, FullStack
Alabama or Alaska or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Hawaii or Iowa or Idaho or Illinois or Indiana or Kansas or Kentucky or Louisiana or Maine or Michigan or Minnesota or Missouri or Mississippi or Montana or North Carolina or North Dakota or Nebraska or New Hampshire or New Jersey or New Mexico or Nevada or Ohio or Oklahoma or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia or Wyoming
$150k-$170k/yr RemoteFull Time
Patch My PC
Patch My PC: Automates third-party application patching for Microsoft IT management tools
8+ YOE8+ years professional software development; strong full-stack experience with .NET, React, and TypeScript; RESTful APIs, MongoDB/NoSQL, Docker, Azure DevOps, CI CD; production ownership and mentoring experience.
.NET, React, TypeScript, RESTful APIs, MongoDB, Docker, Azure DevOps, Microsoft Graph, Microsoft Intune, Microsoft ConfigMgr, WSUS, SignalR, WebSockets, Redux, Kubernetes, Redis, CI CD
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4w
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Software Engineer - Fullstack (New Revenue)
San Francisco or Seattle
$140k-$235k/yr HybridFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provider of e-signature and intelligent agreement management software.
5+ YOE5+ years software development; 3+ years JavaScript/Typescript web apps; experience with React, backend services, unit testing, CI/CD, Git; BS in CS preferred.
JavaScript, Typescript, React, C#, Python, Java, Git, Redux, Angular, CI/CD
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1w
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Senior Software Engineer - Growth (Fullstack)
Seattle, Washington, United States
$180k-$210k/yr HybridFull Time
Read AI
Read AI: AI productivity platform for meeting summaries and workplace insights.
5+ YOE5+ years full-stack experience; TypeScript/React and Python/FastAPI; SQL; A/B testing/experimentation experience; mentoring experience; strong ownership and cross-functional collaboration.
TypeScript, React, Python, FastAPI, SQL, Zoom, Microsoft Teams, Google Meet, Slack
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1mo
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Staff Software Engineer, Fullstack
San Francisco or New York City or Toronto or Seattle
$220k-$250k/yr HybridFull Time
WorkWhile
WorkWhile: AI-powered platform matching hourly workers with flexible shifts.
Experience building product systems end-to-end; frontend (JavaScript, React/React Native) or backend (Python); cross-stack collaboration; product-minded; ambiguity tolerance; mentoring engineers.
JavaScript, React, React Native, Python
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2w
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Senior Software Engineer - Fullstack/Frontend
Redmond, Washington, United States
$120k-$235k/yr HybridFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
4+ YOEBachelor's in CS or related and 4+ years engineering experience; strong front-end skills (TypeScript, React, JavaScript), experience building accessible, performant web apps, and ability to pass Microsoft background checks.
TypeScript, React, C, C++, C#, Java, JavaScript, Python, HTML, CSS, Microsoft Fabric, Azure SQL DB, Azure Cosmos DB, Azure PostgreSQL, Azure Data Factory, Azure Synapse Analytics, Azure Service Bus, Azure Event Grid, Power BI
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2w
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Sr. FullStack Software Engineer
Bellevue, Washington, United States
$120-$200/yr HybridFull Time
Practice by Numbers
Practice by Numbers: A building next-generation software products that combine data, automation, and AI to serve dental and medical practices.
5+ YOE5+ years full‑stack experience with Python/Django and React; experience building scalable SaaS, comfort with cloud (AWS/GCP/Azure), CI/CD, RESTful APIs, WebSockets, and AI/ML integrations.
Python, Django, React, Cursor, Windsurf, AWS, GCP, Azure, CI/CD, RESTful APIs, WebSockets
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1w
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Senior Software Engineer (Backend/Fullstack) - Trust and Safety
Seattle, Washington, United States
$202k-$368k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
2+ YOEBachelor's in CS or related,2+ years industry experience,proficiency in algorithms/data structures and one of python/go/php/c++/java,strong problem-solving and communication skills.
python, go, php, c++, java
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