86 software engineer iii jobs at 23 companies in Washington

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
2w
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Software Engineer III
Bellevue or Boston
$141k-$225k/yr OnsiteFull Time
Chewy
ChewyNYSE: CHWY: Online retailer of pet food, supplies, and veterinary services.
8+ YOEBachelor's in CS/Engineering, 8+ years software engineering experience, designing large-scale distributed backend systems, proficiency in Java/Kotlin/Python, cloud deployment (AWS/GCP/Azure), and experience with LLMs and vector databases.
Java, Kotlin, Python, AWS, GCP, Azure, Qdrant, Pinecone, Milvus, FAISS, OpenSearch, LLMs, Agentic AI, Scrum
1mo
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Software Engineer III
Camas, Washington, United States
$119k-$155k/yr OnsiteContract
Pacific Northwest Defense Coalition
Pacific Northwest Defense Coalition: Trade association for the Northwest defense and security industry.
5+ YOEBachelor's in engineering, 5+ years as a degreed engineer, strong C# and Windows development skills; experience with C/C++, Python, embedded/desktop/web apps, communication protocols, REST/SOAP; strong communication; pass background check.
C#, C, C++, Python, Microsoft Windows, Microsoft Windows Development Toolchain, REST, SOAP, USB, Ethernet, BLE, Wi-Fi
2w
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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
1mo
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Software Engineer III, Editing
Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Maryland or Massachusetts or Michigan or Minnesota or Missouri or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Puerto Rico or Rhode Island or Tennessee or Texas or Utah or Vermont or Virginia or Washington or West Virginia or Wisconsin or Wyoming or Brazil or Canada or Colombia or Germany or Ghana or India or Indonesia or Italy or Kenya or Mexico or Morocco or Netherlands or Poland or Singapore or South Africa or Spain or Switzerland or United Kingdom
$95k-$149k/yr RemoteFull Time
Wikimedia Foundation
Wikimedia Foundation: Operates Wikipedia and provides global free knowledge infrastructure.
2+ YOE2–5 years software engineering experience; proficiency with JavaScript or PHP (or similar), unit testing, version control, strong written communication, and solid algorithms/data-structures skills.
JavaScript, PHP, Python, Ruby, CSS, MediaWiki API, VisualEditor, GitHub
2mo
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Software Development Engineer III, Amazon Leo
Redmond, Washington, United States
$168k-$227k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
8+ YOE5+ Mgmt8+ years of professional software development; 5+ years leading design/architecture; experience mentoring or leading teams; full SDLC experience.
AWS IAM, AWS Lambda, AWS CloudWatch, API Gateway, S3, TypeScript, Python, Go
2mo
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Embedded Software Engineer III - Lunar Permanence
Seattle or Denver or Seattle
$165k-$231k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
6+ YOE6+ years embedded software in C/C++, Rust with Linux; BSP/driver development; hardware debugging with test equipment; strong C/C++/Rust and Linux scripting; teamwork.
C/C++, Rust, Linux, GDB, XSDB, Logic Analyzer, Oscilloscope, JTAG, Python, Matlab
1w
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Software Engineer III- Eng
Seattle, Washington, United States
$102k-$169k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
4+ YOEBachelor's or equivalent, 4+ years software development experience, proficiency in C#, .NET, Python, Java, or JavaScript, experience with GitHub and JIRA, cloud and DevOps knowledge.
C#, .NET, Python, Java, JavaScript, GitHub, JIRA, Junit, Selenium, Azure, AWS, GCP
2w
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Software Engineer III – IntelliScript (Remote)
Brookfield or New York City or Alaska or California or Connecticut or Illinois or Maryland or Massachusetts or New Jersey or Pennsylvania or Virginia or Washington or District of Columbia
$105k-$199k/yr RemoteFull Time
Milliman
Milliman: Global provider of actuarial and risk management consulting services.
5+ YOE5+ years software engineering experience focused on data pipelines and backend systems; proficiency with C# (.NET), SQL, AWS, microservices, event-driven architectures, CI/CD and DevOps practices; strong problem-solving and mentoring skills.
C# (.NET), SQL, AWS, GitHub workflows, Terraform, CI/CD, DevOps, Agile/SAFe, EHR, FHIR, HL7
1mo
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Software Development Engineer III
Mountlake Terrace, Washington, United States
$112k-$190k/yr HybridFull Time
Premera Blue Cross
Premera Blue Cross: Provides health insurance and medical benefit plans for members.
5+ YOEBachelor's in CS/Information Systems, 5+ years software development experience, SDLC knowledge, proficiency with CI/CD and API-based systems; cloud, healthcare experience and Facets exposure preferred.
Facets, CI/CD, API
1mo
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Java/AWS Software Engineer III
Redmond, Washington, United States
$131k-$152k/yr OnsiteFull Time
Denali Advanced Integration
Denali Advanced Integration: Delivers enterprise IT solutions and global managed technology services.
5+ YOE5+ MgmtSenior Java/AWS software engineer with 5+ years leading large-scale SaaS projects; strong Java, concurrency, and cloud skills; bachelor’s or higher in CS/engineering.
Java, AWS, GCP, SQL, NoSQL, Cloud Computing
2d
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Software Engineer III, Mobile (iOS)
Seattle, Washington, United States
$147k-$211k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
2+ YOEBachelor's degree or equivalent,2 years software development experience,2 years iOS development,experience with C++, Java, or Objective C,EMR not mentioned.
C++, Java, Objective C, JNI, Google Maps Platform
2w
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Software Development Engineer III
Seattle, Washington, United States
$146k-$205k/yr OnsiteFull Time
Expedia Group
Expedia GroupNASDAQ: EXPE: Operates a global platform for travel bookings and services.
5+ YOEBachelor's in CS or related (or equivalent experience), 5+ years building and operating complex distributed services; strong system design, API design, data modeling; experience with Java/Scala/Kotlin, AWS, Kafka/Kinesis, Redis/Couchbase/Memcached; familiarity with AI/ML concepts.
Java, Scala, Kotlin, AWS, Kafka Streams, AWS Kinesis, Redis, Couchbase, Memcached
3mo
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Software Engineer III, Cloud - CTIO (Hybrid)
Redmond or Austin or Sunnyvale
$160k-$250k/yr HybridFull Time
CrowdStrike
CrowdStrikeNASDAQ: CRWD: Provides cloud-native endpoint protection and cybersecurity services.
6+ YOE6+ years of experience building and operating high-volume, highly resilient cloud services; strong knowledge of Go or Java; BS in Computer Science or related field.
Go, Java, Cloud services
1mo
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Water/Wastewater Engineer III
Lacey, Washington, United States
OnsiteFull Time
Bowman Consulting Group
Bowman Consulting GroupNASDAQ: BWMN: Provider of engineering and infrastructure consulting services.
5+ YOEBachelor's degree in civil, environmental, or mechanical engineering; 5+ years in water/wastewater; PE licensure preferred; proficiency with design software and MS Office.
AutoCAD, Civil3D, Hydraulic modeling, Microsoft Office
3w
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Full Stack Software Engineer III - Network Perimeter & CDN
Seattle, Washington, United States
$133k-$185k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
3+ YOE3+ years applied software engineering experience, strong Python, API development with Django/FastAPI, distributed systems and messaging (RabbitMQ), cloud experience with AWS, secure SDLC and CI/CD, ability to mentor and lead via code reviews, and experience with AI-assisted development tools.
Python, Django, FastAPI, RabbitMQ, Amazon Web Services (AWS), Terraform, Cloudflare, Akamai, React
2w
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Software Developer III – Senior, DOE
Portland or Salt Lake City or Renton or Medford or Lewiston or Boise or Spokane or Burlington or Fargo or Vancouver
$90k-$214k/yr HybridFull Time
Cambia Health Solutions
Cambia Health Solutions: Non-profit health solutions providing insurance and care services.
5+ YOEBachelor's degree in a related field and 5+ years relevant experience (higher levels require 8–10+ years). Experience in multi-platform application and/or database development, TDD/BDD, CI/CD, containerization, RESTful/GraphQL APIs, security best practices, and strong communication skills.
Microsoft Teams, Slack, Test Driven Development (TDD), Behavior Driven Development (BDD), CI/CD, GraphQL, RESTful, OWASP
2mo
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Systems Software Engineer (I, II or III)
Wenatchee, Washington, United States
$83k-$142k/yr OnsiteFull Time
Chelan County Public Utility District
Chelan County Public Utility District: Provides electricity, water, and telecommunications services to Chelan County.
0+ YOEBachelor's in computer science or related (or equivalent experience). Experience range 0–5+ years depending on level. Requires Agile/DevOps experience, CI/CD, IaC, cloud familiarity, Git, test automation, secure coding, and strong communication.
Git, CI/CD, Infrastructure as Code (IaC), DevOps, Agile
2w
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Drainage Engineer III
Renton, Washington, United States
$56-$70/hr HybridFull Time
King County
King County: Local government providing public services for King County, Washington.
3+ YOECivil engineering background with 3+ years experience designing and managing road/drainage projects; proficient in hydrology/hydraulic and GIS software, AutoCAD/Civil3D, MS Office; ability to lead teams and manage budgets and schedules.
MGS Flood, EPA-SWMM, KC Backwater, GIS, AutoCAD, Civil3D, Microsoft Word, Microsoft Excel, Microsoft Teams, Microsoft Outlook
1mo
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Senior Machine Learning Engineer/Machine Learning Engineer III
Seattle, Washington, United States
$180k-$270k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
5+ YOE5+ years (ML Engineer III) or 7+ years (Senior) building production ML systems; experience with PyTorch/TensorFlow, LLMs and RAG, cloud platforms (AWS/GCP); Bachelor's in CS/engineering/math/physics (Master/PhD preferred); leadership experience for senior role.
PyTorch, TensorFlow, LLMs, RAG, AWS, GCP
1mo
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Manager III, Software Development - Content Data Platform
Austin or Bozeman or Denver or Minneapolis or Missoula or Portland or Salt Lake City or Seattle or Charlotte or Kalispell or Boise or Charleston or Dallas or Fort Worth or Phoenix or Richmond or Spokane or Vermont
$150k-$188k/yr RemoteFull Time
onXmaps
onXmaps: Digital mapping and navigation apps for outdoor recreation.
5+ Mgmt5+ years managing software engineers; experience building data platform/infrastructure and migration off legacy systems; hiring and team development skills; experience with data quality, SLOs, and operational reliability; US work authorization required; ability to travel.
GCP, Managed Spark, BigQuery, BigLake, Pub/Sub, Managed Airflow, Apache Iceberg, Spark, PySpark, DuckDB, dbt, Airflow, GDAL, PostGIS, Apache Sedona, DuckDB spatial extensions, Knowledge Graph, AI-assisted tools