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1,020 senior software engineer python jobs at 222 companies in Seattle, WA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
PromotedHiringCafe
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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Senior Software Engineer
Seattle, Washington, United States
$170k-$210k/yr OnsiteFull Time
Avante
Avante: AI-powered platform for managing employee benefits and data.
Senior Software Engineer with production code across TypeScript stack; strong design, reviews, mentoring; capable of end-to-end feature delivery.
TypeScript, Java, C#, Python
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2mo
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Senior Software Engineer
Kirkland, Washington, United States
OnsiteFull Time
Deep Sync
Deep Sync: Provides deterministic identity and AI-powered data marketing solutions.
5+ YOE5+ years software engineering; Bachelor's or Master's in CS/Engineering or related field; strong Python/Java/C++ skills; AWS and containerization (Docker/Kubernetes); Ad-Tech experience is a bonus.
Python, Java, C++, AWS, Docker, Kubernetes
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2mo
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Senior Software Engineer, Developer Experience
Bellevue or Livingston or New York or San Francisco or Sunnyvale
$165k-$242k/yr HybridFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
7+ YOESenior software engineer with 7+ years in production platforms, distributed systems, and developer tooling.
Go, Python, Kubernetes, GitHub Actions, Buildkite, Bazel, Artifactory, MCP
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3mo
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Senior Software Engineer, Security
San Francisco or Seattle
$165k-$230k/yr HybridFull Time
NexHealth
NexHealth: Connects patient experience software with electronic health records.
5+ YOE5+ years software engineering; 1–3+ years security; backend in Python/Go/Java; OAuth/JWT; AWS/Google Cloud; OWASP; SAST/DAST; RBAC; Bachelor's in CS/Engineering.
Python, Go, Java, OAuth 2.0, JWT, RBAC, OWASP, SAST, DAST, AWS, Google Cloud, CI/CD
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3mo
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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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2mo
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Senior Software Engineer (Search & Personalization)
Seattle, Washington, United States
OnsiteFull Time
BuyWander
BuyWander: A shopping platform using AI and real-time auctions to reinvent the retail returns industry.
Senior software engineer to own search and personalization, with backend/frontend stack and ML-driven enhancements, collaborating with AI team.
C#, Python, FastAPI, Vue, Nuxt, Vercel, Elasticsearch, Algolia, OpenSearch, Pinecone, Copilot, Cursor, Claude
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3mo
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Senior Software Engineer, Productivity
Seattle, Washington, United States
$158k-$245k/yr HybridFull Time
Airwallex
Airwallex: Global financial platform for business payments and money management.
8+ YOE8+ years software engineering; backend focus; CI/CD and developer tooling experience; cloud (AWS/GCP/Aliyun); strong design skills; proficient in Python/Java/Go/Kotlin/Rust/Node.js.
Python, Java, Go, Kotlin, Rust, Node.js, Terraform, Kubernetes, Docker, AWS, GCP, Aliyun, Datadog, Grafana, Prometheus
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2mo
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Senior Software Engineer
Seattle, Washington, United States
$117k-$160k/yr OnsiteFull Time
Brighton Jones
Brighton Jones: Provides fee-only wealth management and financial planning services.
4+ YOE4-6 years full-stack software engineering; Python, JavaScript/TypeScript; SQL and data integration; REST/SOAP APIs; MuleSoft preferred; cloud experience (Azure preferred).
Python, JavaScript, TypeScript, SQL, Azure, REST, SOAP, MuleSoft, ETL/ELT, Data Modeling, Cloud, Data Integration
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2mo
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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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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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Senior Software Engineer - Agentic AI Applications
Seattle, Washington, United States
$152k-$230k/yr RemoteFull Time
Serko
SerkoNZX: SKO: Provides online corporate travel and expense management software.
Senior full-stack engineer with AI integration experience, strong TypeScript React/Next.js frontend and Python/SQL backend, API design, CI/CD, and on-call resilience.
TypeScript, React, Next.js, Python, SQL, REST, GraphQL, Docker, CI/CD, WebSockets
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1mo
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Senior Software Engineer
Seattle, Washington, United States
$158k-$233k/yr HybridFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provides electronic signature and agreement management software solutions.
8+ YOE8+ years in OO software development (C#, C++, Java) and/or scripting (Node.js, Go, Python); 5+ years cloud IaC tooling (Terraform, ARM, Cloud Deployment Manager); experience with cloud storage, microservices, Kubernetes; on-call reliability experience.
Terraform, ARM, Cloud Deployment Manager, Kubernetes, Docker, SRE, Cosmos DB, Cassandra, Firestore, DynamoDB, Azure Blob, GCS, S3, GitOps
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2w
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Senior Software Engineer
San Francisco or New York City or Los Angeles or Seattle or United Kingdom or Ireland or Poland or Germany or Australia
$207k-$230k/yr HybridFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
5+ YOE5+ years software engineering experience building and operating scalable backend or full‑stack distributed systems; strong system design, production ownership, and mentoring; experience with Python, Elixir, or JavaScript preferred.
Python, Elixir, JavaScript
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Senior Software Engineer
Seattle, Washington, United States
$172k-$232k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
9+ YOEBachelor's degree, ability to obtain U.S. security clearance,9+ years software development in Java/C++/Python,2+ years interpreting engineering data and performing quantitative analysis,experience with time-series and sensor data.
Java, C++, Python, ARINC 429, ARINC 717, ARINC 767, Apache Parquet, Apache ORC, HDF5, Delta Lake
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Senior Software Engineer
Seattle, Washington, United States
$172k-$232k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
9+ YOEBachelor's degree or equivalent, ability to obtain U.S. security clearance,9+ years software development experience in Java/C++/Python,2+ years with engineering data and quantitative analysis,experience with ARINC formats and large-scale data formats preferred.
Java, C++, Python, ARINC 429, ARINC 717, ARINC 767, Apache Parquet, Apache ORC, HDF5, Delta Lake
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3mo
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Senior Software Engineer, Security Enablement Team ASE
Seattle, Washington, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
8+ YOE8+ years in software engineering; Kubernetes, Docker; Java, Go, Python; API security; distributed systems; OS concepts; security-focused development.
Kubernetes, Docker, Java, Go, Python, Cassandra, Kafka, Zookeeper, etcd, Solr, REST, gRPC, TLS/SSL, OAuth, JWT
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3w
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Senior Software Engineer III
Richland or Seattle
$133k-$210k/yr HybridFull Time
Pacific Northwest National Laboratory
Pacific Northwest National Laboratory: Department of Energy research laboratory focused on scientific innovation.
1+ YOERequires hands-on Python experience and software engineering expertise with scalable system design, cloud-native deployments, ETL/data pipelines, distributed processing, and security clearance eligibility.
Python, .NET, C#, Go, C++, Rust, Git, Copilot, Claude, Cursor, AWS, Azure, GCP, Docker, Kubernetes, REST, GraphQL, gRPC, SQL, NoSQL, Spark, Kafka, Flink, Ray, LangChain, LlamaIndex, AWS Glue, Azure Data Factory, Step Functions
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1mo
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Software Engineer II & Senior Software Engineer
Redmond, Washington, United States
$102k-$235k/yr HybridFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
2+ YOEBachelor's degree or equivalent experience; 2+ years engineering experience (SE II) or 4+ years (Senior). Proficiency coding in C, C++, C#, Java, JavaScript, or Python. Experience with macOS/Linux, systems or security software preferred. Must pass Microsoft Cloud background check.
C, C++, C#, Java, JavaScript, Python, Objective-C, macOS, Linux, Endpoint Security Framework (ESF)
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1mo
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Senior Software Engineer - Python/Agentic AI
Seattle, Washington, United States
$146k-$183k/yr HybridFull Time
BlackLine
BlackLineNASDAQ: BL: Provides cloud software to automate financial close and accounting.
3+ YOEMS in Mathematics/Computer Science or equivalent experience (BS+5 or MS+3). Strong software development skills (C#, .NET, .NET Core), 3+ years building web/SaaS/REST APIs, SQL expertise, distributed systems, test automation, and Agile experience.
Python, C#, .NET, .NET Core, HTML, JavaScript, JavaScript Frameworks, CSS, SQL, PostgreSQL, NoSQL, Docker, Kubernetes, Kafka, SQS, RabbitMQ, Azure, ASW, GCP
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1mo
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Senior Software Engineer, Platform
Irvine or Newport Beach or Denver or San Francisco or Seattle
$185k-$200k/yr HybridFull Time
Compa
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years backend software engineering experience; hands-on AWS, Python, Django, and Postgres; strong DevOps/SRE fundamentals (CI/CD, observability, incident response); networking and distributed systems knowledge.
AWS, Python, Django, Postgres, Kubernetes, CI/CD, Infrastructure as Code (IaC), ML Ops
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