68 c net developer jobs at 27 companies in Langley, WA

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Senior C# Developer (Data Management)
Warsaw or Seattle
HybridFull Time
Veeam
Veeam: Data resilience and security for hybrid cloud environments
5+ YOE5+ years commercial software development experience; proficiency in C# and .NET, software architecture, data structures and algorithms; problem-solving mindset and English proficiency.
C#, .NET, Microsoft Azure, Microsoft Entra ID, Veeam Data Command Center, Veeam Service Provider Console, Veeam VDC Azure/Entra ID services
1w
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.Net+Azure Developer
Bellevue, Washington, United States
$64k-$105k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
2+ YOEExperience with C#/.NET, REST APIs, Microsoft Azure, SQL/Kusto, unit testing, CI/CD, GitHub/Azure DevOps; 2+ years professional engineering experience.
C#, .NET, REST APIs, Microsoft Azure, SQL, Kusto, GitHub, Microsoft Azure DevOps, Microsoft Cosmos DB, Microsoft Azure Service Bus, Microsoft Intune, CI/CD, Microservices, Unit Testing
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Senior Software Engineer
Redmond or New York
$120k-$235k/yr HybridFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
4+ YOEBachelor's in CS or related (or equivalent), 4+ years engineering experience; proficiency in C/C++/C#/Java/JavaScript/Python; experience with Windows/.NET development, CI/CD, telemetry, and performance optimization.
C, C++, C#, Java, JavaScript, Python, .NET, Win32 API, WinUI3, UWP, CI/CD
1d
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Senior Engineer - Durable Compliance
Renton or Palo Alto or Richardson or Bethesda
$75k-$215k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
3+ YOE4+ years software development experience with Duck Creek and 3+ years with .NET/C#; experience in architecture, cloud, DevOps, monitoring, security, and microservices; bachelor's degree or equivalent.
Duck Creek, C#, .NET, Visual Studio, SQL Server, ASP.NET, MVC, Web API, Java, Python, Go, JavaScript, TypeScript, HTML-5, Angular, React, XML, JSON, RESTful Web Services, Event Driven Architectures, SQL, NoSQL, Docker, Kubernetes, Azure, Azure DevOps, AWS, GCP, ManuScript, CBO, Author
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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
6d
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(USA) Software Engineer II
Seattle or Denver
$88k-$186k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
3+ YOE.Net and C# proficiency, experience with MongoDB/NoSQL and AWS, commercial software development experience, bachelor's degree or 3+ years engineering experience, strong debugging and analytical skills.
.Net, C#, MongoDB, NoSQL, AWS, WCAG 2.2 AA
2w
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UI Engineer
Seattle or United States
$110k-$125k/yr RemoteFull Time
Marchex
MarchexNASDAQ: MCHX: Develops AI software for call tracking and conversation analytics
3+ YOEBachelor's degree or equivalent experience, 3+ years software development, strong frontend skills (Angular/TypeScript/HTML/CSS), experience with backend (.NET/C# or Node.js), CI/CD and observability tool experience, cloud familiarity (Azure preferred).
Angular, TypeScript, HTML, CSS, RxJS, Redux, C#, .NET, .NET 8, Node.js, Scala, SQL, NoSQL, Azure, GitHub Actions, Bicep, New Relic, Application Insights, Jasmine, Cypress, Playwright, Cursor, Claude Code, Codex, GitHub Copilot, Kafka
4w
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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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Full Stack Developer III
Seattle or Tacoma
$125k-$155k/yr HybridFull Time
PBK
PBK: Provides architectural and engineering design for specialized facilities.
7+ YOE7+ years full-stack experience; strong JavaScript/TypeScript and React front-end skills; back-end experience with Node.js, .NET/C#, or Python; REST API design, Microsoft Azure, CI/CD, secure development, and stakeholder collaboration.
React, TypeScript, JavaScript, Node.js, .NET, C#, Python, REST API, GitHub Enterprise, Microsoft Azure DevOps, Microsoft Azure, Autodesk Forma, Deltek Vantagepoint, Microsoft 365, Microsoft Graph API, Microsoft SharePoint, Docker, GitHub Enterprise, Microsoft Azure Monitor, Microsoft Application Insights, Microsoft Log Analytics
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AutoDesk Engineer
Redmond, Washington, United States
$75k-$92k/yr OnsiteFull Time, Contract
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
5+ YOEExpert-level Autodesk skills with API/plugin development, advanced programming (C#/.NET, C++, or Python), ObjectARX/Revit/Inventor/Fusion customization, 5+ years software development, and a relevant bachelor's degree.
AutoCAD, Revit, Inventor, Fusion, Autodesk Platform Services (APS / Forge), ObjectARX, Revit API, Inventor API, AutoLISP, Fusion API, C#, .NET, C++, Python, Anthropic Claude, LangChain
1mo
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Software Development Engineer II (SDE II) – EDI Applications
Mountlake Terrace or Orcas
$92k-$157k/yr HybridFull Time
Premera Blue Cross
Premera Blue Cross: Provides health insurance and medical benefit plans for members.
1+ YOEBachelor's degree or equivalent experience, 1+ years software development experience, proficiency with .NET and C#, experience with SQL Server, XML/JSON, CI/CD, and working in agile teams; Azure and EDI/FHIR experience preferred.
C#, .NET, SQL Server, XML, JSON, CI/CD, Azure, API, FHIR, EDI, Python, JavaScript, HTML
3w
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Security Engineer, Enterprise Protection Program
Arlington or Seattle or Herndon
$159k-$202k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years programming experience (Python, Ruby, Go, Swift, Java, .Net, C++), 2+ years troubleshooting and scripting, knowledge of networking protocols and security vulnerabilities, Bachelor's in Computer Science or equivalent.
Python, Ruby, Go, Swift, Java, .Net, C++, command line tools, AWS
1mo
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Senior Software Engineer (Backend)
Seattle, Washington, United States
$140k-$200k/yr RemoteFull Time
Aerostrat
AerostratNYSE: AIR: Builds maintenance planning software for the aviation industry.
5+ YOE5+ years C#/.NET and SQL experience, 3+ years building REST APIs and cloud projects on Azure or AWS, experience designing technical solutions for engineers, strong communication and problem-solving skills.
C#, .NET, SQL Server, SQL, REST APIs, microservices, Azure, AWS, Slack
1mo
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AI & Automation Engineer
Seattle, Washington, United States
$130k-$185k/yr OnsiteFull Time
Freestone Capital Management
Freestone Capital Management: Independent wealth management firm providing personalized financial planning services.
5+ YOEBachelor's in CS or equivalent experience; 5+ years in software engineering/integration/automation; proficiency with Python or C#/.NET, REST APIs, webhooks, OAuth, Power Automate, Microsoft 365/Graph/SharePoint, DocuSign, Claude, and SQL; strong security and data-governance mindset.
Python, C#, .NET, REST APIs, webhooks, OAuth, Power Automate, Microsoft 365, Microsoft Graph API, SharePoint, OneDrive, DocuSign, Claude, SQL, CRM
1mo
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Software Engineer, PCBA (Starlink)
Redmond, Washington, United States
$125k-$175k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
1+ YOEBachelor's in CS/engineering/STEM, 1+ years full-stack development, experience with C#.NET/Python/Go/Java, build systems (Make/Bazel), Docker/Kubernetes, message queues, databases, and integrating software with manufacturing equipment.
C#.NET, Python, Go, Java, Make, Bazel, pip, npm, UNIX, Apache Kafka, RabbitMQ, ActiveMQ, Docker, Kubernetes, Angular, React, PostgreSQL, SQL Server, NX, Altium, Xpedition, Allen Bradley, Mitsubishi, Fuji, Nordson
6d
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Senior Software Development Engineer
Seattle, Washington, United States
$112k-$156k/yr HybridFull Time
MCG Health
MCG Health: Provides evidence-based clinical guidelines and software for healthcare.
5+ YOE5+ years software development experience building and operating Azure cloud-native distributed systems; strong C#, .Net Framework, SQL Server, REST APIs, microservices, CI/CD, IaC, security, incident response, and AI-assisted tooling experience.
Azure, C#, .Net Framework, SQL Server, REST APIs, Microservices, CI/CD, infrastructure-as-code, GitHub Copilot, Claude, Azure Service Bus, Kafka
1mo
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Senior Engineer AppDev
Chennai or Coimbatore or Bengaluru or Hyderabad
OnsiteFull Time
Presidio
Presidio: Global provider of cloud, cybersecurity, and digital infrastructure solutions.
Hands-on web development with Java, .Net, Python, Go, C#, or JavaScript; experience with Angular/React/NodeJS, microservices, Docker, relational and NoSQL databases, and cloud platforms (AWS/Azure/Google).
Java, .Net, Python, Go, C#, JavaScript, Angular, React, NodeJS, Docker, Postgres, MySQL, Oracle, MongoDB, Amazon DynamoDB, Cassandra, Amazon Web Services, Microsoft Azure, Google
1w
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Web Application Developer
Keyport or United States
$90k-$120k/yr RemoteFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
3+ YOE3+ years building and supporting web applications; proficiency with C#, SQL, .NET Core, JavaScript; experience with APIs, relational databases, low-code platforms; strong troubleshooting and communication skills.
C#, SQL, .NET Core, JavaScript, Microsoft Power Platform, Power Apps, Power Automate, Mendix, OutSystems, Appian, Git, Azure DevOps
2mo
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Sr. Software Engineer
Seattle, Washington, United States
$130k-$145k/yr OnsiteFull Time
ThriftBooks
ThriftBooks: Independent online retailer of used and new books.
4+ YOE4+ years of hands-on software engineering with emphasis on .NET/C#, and JavaScript; strong SQL skills; front-end frameworks like Blazor or React; understanding full-stack interactions
NET/C#, SQL Server, React, Blazor, JavaScript
3w
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Software Engineer, Full-Stack
Bellevue or San Jose
$180k-$240k/yr OnsiteFull Time
Rivet Industries
Rivet Industries: Building integrated task systems for frontline industrial and defense operators.
5+ YOE5+ years building full-stack web applications; strong C#, Microsoft .NET/ASP.NET Core experience (or comparable stack), SQL fluency, Docker and Linux deployment experience, BS in CS or equivalent.
C#, Microsoft .NET, Microsoft ASP.NET Core, SQL, Docker, Linux