C# Developer jobs in Seattle, WA

Senior Fullstack Developer (C#, AWS, Angular)

Remote or Hybrid in Cleveland, Ohio

•

Today

Precision is seeking a Senior Full Stack Developer for a contract position supporting our Fortune 100 client. This fully remote role requires work during Eastern Time business hours and focuses on building and supporting software across the UI, backend, APIs, databases, and cloud. You will develop with C#/.NET and Angular while designing APIs and microservices. Strong AWS experience is essential, including DynamoDB, SQS, SNS, S3, Lambda, and Terraform. The role also includes technical documentat

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Contract

DOE

.Net/ C# Developer with X12 and EDI 270/271 - Remote

Remote

•

Yesterday

Must provide 2 Managerial references for this role Remote role - Must have X12 EDI AWS 8+ years software engineering experience with distributed, high-volume transaction-processing systems.Healthcare EDI/X12 exp, particularly 270/271 eligibility, Service Type Codes, and payer connectivity.Strong C#/.NET backend development, including async programming, performance tuning, resiliency, and automated testing.Experience with event-driven architectures and messaging, preferably RabbitMQ or equivalen

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Third Party, Contract

Depends on Experience

Senior Fullstack Developer (C#, AWS, Angular)

Remote or Hybrid in Cleveland, Ohio

•

Today

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Contract

DOE

Full Stack Developer / C# .NET / Vue / Azure / Remote

Remote

•

Today

A leading food services and facilities management organization is seeking a Full Stack Developer for a remote contract opportunity. This role will support application modernization initiatives and the migration of enterprise applications to Microsoft Azure, utilizing technologies including C#, .NET, Vue/Nuxt, SQL, and RESTful APIs to build and enhance business-critical solutions. What sets this opportunity apart is the chance to work on modernizing and rebuilding applications in a collaborative

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Contract

$45 - $75

Application Full Stack Developer -- API C#, ASP.NET, .NET Core, MVC

Remote

•

8d ago

Dear Candidate, If below requirement suits you then please share your updated resume. New position: Application Developer/Architect Duration: 12 months 100% Remote C2C Rate: $60/hr Skills and Role: Design, develop, and support enterprise applications using Microsoft technologies and modern web frameworks. Work closely with business stakeholders to deliver secure, scalable, and high-performance solutions. Key Skills: C#, ASP.NET, .NET Core, MVCReact, JavaScript, jQuery, HTML, CSS, BootstrapSQL S

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Contract

60+

OpenLink Endur Developer / Specialist (.NET / C#)

Remote

•

9d ago

Position OverviewWe are seeking an experienced OpenLink Endur Developer with a strong technical background in .NET / C# to design, develop, test, and maintain custom solutions within our Endur ETRM/CTRM platform. In this role, you will collaborate with business analysts, trade support, and risk teams to deliver robust custom OpenJVS/OpenComponents (.NET) scripts, plugins, report builders, and system integrations across energy and commodity trading desks. Key ResponsibilitiesDevelopment & Customi

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Contract

00+

C# Software Engineer

Everett, Washington

•

Today

Job Title: C# Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI at looking for a C# software engineer to design, develop, and maintain software tools that keep aircraft safe and operational. Your work will directly impact the Navy's F/A-18 fleet readiness by enhancing maintenance detection software and anoma

Full-time

USD 66,700.00 - 133,300.00 per year

AI Platform Engineer

Remote

•

2d ago

Platform Engineer Agentic AI & Developer Platforms We are seeking an experienced Platform Engineer to join a high impact engineering team focused on building next generation AI powered developer platforms. This role will play a critical part in designing, developing, and operationalizing internal AI agent platforms, MCP servers, automation frameworks, and developer tooling that enable engineering teams to build and deploy software more effectively. The ideal candidate brings hands on experience

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Contract

Depends on Experience

Certified Microsoft .NET web Developer IV

Remote

•

3d ago

Certified Microsoft .NET web Developer IV Primary Location: Madison, WI V-Soft Consulting is currently hiring for a Certified Microsoft .NET web Developer IV for our premier client in Madison, WI. Education and Experience Performs front-end and back-end development of web applications and web APIs (web services). (5-8+ years)Experience with ASP.net and SSRS reporting (5-8+ years)SQL Backend and stored procedure experience (5-8+ years)Development and Support experience on web-based applications

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Contract, Third Party

$63.38

Sr. Web Application Developer

Remote

•

10d ago

Job Title: Sr. Web Application Developer Location: Indianapolis, IN Type: Contract Compensation: $58 - $70 Work Model: Remote offsite Responsibilities Lead the architecture, design, and development of modern web applications across a diverse technology stack, including .NET/C#, Node.js, and front-end frameworks (React, Angular, Vue). Design and implement scalable, cloud-native solutions using microservices and serverless architectures. Establish and enforce engineering best practices, codin

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Contract

$57.65

Application Integration Developer

Remote or Seattle, Washington

•

Today

DatamanUSA has an exciting opportunity for an Application Integration Developer to work with one of our direct clients in Seattle WA. Job Title: Application Integration Developer Duration: 6+ Months Location: Seattle WA 98121 (Remote) Mandatory: Bachelor's degree in either Computer Science/Information Technology and 7+ years of experience or equivalent combination of education and experience developing applications 5+ years of experience developing async Soap and Restful APIs and connecting AP

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Contract, Third Party

USD 60-65

H1B CAP Hiring for 2027 for OPT / Stem OPT

Remote or Albany, New York

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10d ago

Greeting from i-link Solutions Inc! We are looking to hire IT professionals for H1B filing for 2026-27. If you are interested, please reply to me at the earliest. Only the candidate stayed in Albany, NY, USA can apply Candidates with a US Master's Degree and 4+ years of experience, or those outside Albany, NY who are currently on a project and convertible can apply. Kindly share me the following details to move to the next step, along with an updated resume, Visa copy, ID Proof, Degree Certifica

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Contract

Depends on Experience

Applications Support Supervisor (IT Application Development Senior/Specialist)

Remote or Olympia, Washington

•

Today

Salary : $99,300.00 - $133,608.00 Annually Location : Thurston County - Olympia, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-3266-07541 Department: Liquor and Cannabis Board Division: Information Technology Services Opening Date: 09/11/2026 Description WSLCB Vision Safe communities for Washington State Mission Promote public, public health, safety and trust through fair administration and enforcement of liquor, tobacco, cannabis and vapor laws This rec

Full-time

USD 99,300.00 - 133,608.00 per year

Developer

Remote or Hybrid in Boston, Massachusetts

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18d ago

The U.S. District Court Clerk s Office is accepting applications for an experienced full-time Developer. The incumbent will join the Information Technology team supporting work for the U.S. District Court for the Districts of Montana and Massachusetts with a reporting structure in both districts. Representative Duties: The Developer Position duties include: Develops, tests, and maintains containerized applications. Designs, modifies, adapts and enhances existing software to improve performance,

Full-time

67,652 - 109,971

Sr Azure .NET Developer

Remote or Grand Rapids, Michigan

•

Today

job summary: We are seeking an Azure Developer with 5+ years of Microsoft .Net experience, including 2+ years developing native cloud solutions in Azure. This is a hands-on development role requiring a passion for building great software with our growing Engineering team. You will be working in an Agile SAFe environment so a commitment to collaborative teamwork is essential. location: Telecommute job type: Solutions salary: $45 - 65 per hour work hours: 8am to 5pm education: Bachelors resp

Full-time

USD45 - USD65

Lead Azure .NET Developer

Remote or Grand Rapids, Michigan

•

Today

job summary: We are seeking a Lead Azure Developer with 7+ years of Microsoft .Net experience, including 2+ years developing native cloud solutions in Azure. This is a hands-on development role requiring a passion for building great software with our growing Engineering team. You will be working in an Agile SAFe environment so a commitment to collaborative teamwork is essential. location: Telecommute job type: Solutions salary: $60 - 75 per hour work hours: 8am to 5pm education: Bachelors

Full-time

USD60 - USD75

Sr .Net Developer with AZURE and Healthcare Domain Experiene

Remote

•

Yesterday

ROLE: SENIOR DOT NET DEVELOPER WITH AZURE OVERALL EXPEREINCE 10YRS+ LOOKING FOR CANDIDATES WITH QNXT EXPERIENCE & HEALTHCARE DOMAIN. RequiredQualification: Design, develop, and maintain microservices, web applications using .NET Core, C#, Web API, Docker, Azure Kubernetes, and other .NET frameworks.Hands on experience on Azure Cloud and AKS addedadvantage.Build responsive web applications using Angular, Type Script andNodeJs.Develop and manage REST APIs, integrating them into front-end and bac

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Contract, Third Party

Depends on Experience

Principal Software Engineering Manager - CoreAI

Redmond, Washington

•

Today

Overview Do you want to lead a team building the C# language, compiler, and developer tools used by millions of developers around the world? The C# team is looking for a Principal Software Engineering Manager to lead a team working on the C# compiler and developer experiences across Copilot, Visual Studio Code, Visual Studio and other development environments. The team builds tools and language features help developers and agents understand, navigate, write, and improve their code, while incre

Full-time

USD 142,800.00 - 274,800.00 per year

Stock Loan Senior Developer with Capital Market & Trading exp.

Remote

•

Yesterday

Role: Stock Loan Senior Developer with Capital Market & Trading exp. Location: NYC (Remote) Job Type: FullTime Experience: 7+ Years Job Description We are looking for a "Senior C#/.NET Developer with strong Stock Loan and Capital Markets" experience. The ideal candidate will have hands-on experience developing financial applications and strong expertise in C#/.NET technologies. Required Skills: * 7+ years of software development experience. * Stock Loan domain experience is required.* * Strong

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Full-time

Depends on Experience

Software Support Engineer, C#/.NET & SQL.

Redmond, Washington

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23d ago

About Blueprint Blueprint is a technology solutions firm headquartered in Bellevue, Washington, with teams across the United States. We help organizations turn complex challenges into meaningful outcomes by connecting strategy and execution across AI, cloud, data, product development, and emerging technology. Our culture is built by people who care deeply about doing exceptional work. We set high standards, take ownership, and continually challenge ourselves and one another to be better. We wo

Full-time

USD 90,000.00 - 100,000.00 per year

C# Developer jobs in Seattle, WA, USA