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Senior eCommerce / .NET Application Developer

Washington, District of Columbia

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Today

We're Hiring! Senior eCommerce / .NET Application Developer Location: Washington, DC (Onsite) NO Relocation will Accept Employment: W2 Only No C2C Visa: L2 TN We're looking for a hands-on Senior eCommerce Application Developer to join a growing Enterprise Applications team, building mission-critical, customer-facing eCommerce platforms. Responsibilities: Design & develop eCommerce and order management solutions using .NET, Sitecore OrderCloud, SQL Server Build storefront integrations identity

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Contract

$60 - $70

Senior .Net Application Developer

Remote or Georgia

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Today

Job Description Why Conduent: You'll have an opportunity to work on innovative technology while being surrounded by a culture that recognizes each person's contributions. Each day you'll feel challenged and know you are making a difference. At Conduent, we believe everything touches everything -and to that end we value our work and each other in the process, making it an award-winning place to work. As a Sr. Application Dev and Support engineer, you will be responsible for design, development

Full-time

USD 96,250.00 - 125,000.00 per year

Senior .Net Full-Stack Developer

Washington, District of Columbia

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Today

Kadiak, LLC, a Koniag Government Services company, is seeking a Senior Net Full-Stack Developer with a Top-Secret security clearance to support Kadiak and our government customer in Washington, DC. We offer competitive compensation and an extraordinary benefits package including health, dental and vision insurance, 401K with company matching, flexible spending accounts, paid holidays, three weeks paid time off, and more. Kadiak, LLC is seeking a Senior .Net Full-Stack Developer with a Top-Secre

Full-time

USD 95,000.00 per year

Senior .Net Developer #1775411

Alexandria, Virginia

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Today

About NDi: Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly defined core values have driven all aspects of the business, which have been paramount to our company's success and the establishment of an enjoyable workplace atmosphere. At NDi, we believe that our people are the cornerstone of our success, and we value collaboration

Full-time

USD 125,000.00 - 135,000.00 per year

.NET Full Stack Developer, Senior

Washington, District of Columbia

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Today

Overview The .NET Full Stack Developer, Senior, is responsible for the design, development, testing, and management of complex application development efforts in support of enterprise IT environments. This role encompasses programmatic integration of third?party components, introduction of new custom capabilities, modification and enhancement of existing code, process improvement recommendations, and automation of operations and maintenance tasks. This role develops and implements technical so

Full-time

USD 145,000.00 - 151,258.00 per year

.NET Developer Senior

Arlington, Virginia

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Today

Job ID: 2613243 Location: Arlington, VA, US Date Posted: 2026-06-03 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_HYBRID Description The .NET Software Engineer/Developer will design, develop, and maintain web applications using the .NET framework. The successful candidate will integrate software solutions with Oracle databases, suppo

Full-time

USD 120,001.00 - 160,000.00 per year

.Net Full Stack Developer (Senior)

Washington, District of Columbia

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Today

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to

Full-time

USD 98,500.00 - 184,900.00 per year

Senior Application Developer

McLean, Virginia

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Today

The Senior Application Developer is responsible for ensuring the stability, support, and continuous modernization of critical enterprise applications that underpin core business operations. This role will serve as the primary technical owner of a mission-critical legacy environment built on the Microsoft stack, which includes the .NET Framework, SQL Server, and IIS. The developer will ensure reliable daily operations while helping to transition the system to modern architecture and development p

Full-time

Senior Full Stack Developer (.Net and Azure)

Herndon, Virginia

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Today

Senior Full Stack Developer (.Net and Azure), #1059 Location: Herndon, VA (hybrid once a quarter) Clearance: U.S. Citizenship is required. Must be able to obtain TSA Public Trust. If you thrive on solving complex, undefined challenges and embrace the opportunity to figure things out along the way, are a natural self-starter, and take ownership of your work and drive progress with purpose, this position is for you. This role will collaborate and work alongside smart, supportive teammates who br

Full-time

USD 100,000.00 - 160,000.00 per year

Senior Web Application Developer

Washington, District of Columbia

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Today

Kadiak, LLC, a Koniag Government Services company, is seeking a Senior Web Application Developer with a Top-Secret security clearance to support Kadiak and our government customer in Washington, DC. We offer competitive compensation and an extraordinary benefits package including health, dental and vision insurance, 401K with company matching, flexible spending accounts, paid holidays, three weeks paid time off, and more. The Senior Web Application Developerwill design, develop, and maintain ad

Full-time

USD 95,000.00 per year

Application Developer Senior

Germantown, Maryland

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Today

Full-time

USD 91,300.00 - 184,900.00 per year

Senior Web Application Developer

Washington, District of Columbia

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Today

Overview The Web Application Developer is responsible for designing, testing, and developing well-designed web-based software code that is testable and efficient, using best software development practices to meet user needs. This role involves recommending software upgrades for current and future systems, translating User Interface (UI)/User Experience (UX) design wireframes, ensuring software continues to function normally through software maintenance and testing, and documenting every aspect

Full-time

USD 100,000.00 - 137,000.00 per year

Web Application Developer, Senior

Washington, District of Columbia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a Senior Web Applications Developer to support mission-critical initiatives at Joint Base Anacostia-Bolling (JBAB), Washington, DC. In this role, you will lead the modernization, enhancement, and maintenance of secure web applications that support data-driven decision-making and operational effectiveness. The ideal candidate brings deep experience in React.js, Node.js, JavaScript, HTML, CSS, SQL, and REST

Full-time

USD 155,000.00 per year

Senior Application Developer

Washington, District of Columbia

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Today

About us: Essnova Solutions is one of the fastest-growing federal contractors in the U.S., supporting over 40 federal agencies. We specialize in IT services, digital transformation, artificial intelligence, cloud, and systems integration. Our high-performance culture values ownership, speed, and bold execution. Essnova takes full responsibility for our contracts, aligning our work closely with our clients' strategic mission and objectives. Our commitment to clear communication and mission-driven

Full-time

Senior Application Developer

Hybrid in Washington, District of Columbia

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Today

Job Number: R0240277 Application Developer, Senior The Opportunity: At a certain point, experience -based system design can start to look like clairvoyance. When you've developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can also anticipate and preempt future issues, you're a solutions architect. You've evolved your skills into strategy through a long path of sof t war e development accomplishments and the curiosity to unders

Full-time

USD 86,800.00 - 198,000.00 per year

Senior Application Developer

Hybrid in Washington, District of Columbia

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Today

Job Number: R0240024 Application Developer, Senior The Opportunity: At a certain point, experience -based system design can start to look like clairvoyance. When you've developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can also anticipate and preempt future issues, you're a solutions architect. You've evolved your skills into strategy through a long path of sof t war e development accomplishments and the curiosity to unders

Full-time

USD 86,800.00 - 198,000.00 per year

Senior .NET Developer (With State client’s licensing application exp)

Remote

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6d ago

Job title: Senior .NET Developer (With State clients licensing application exp) Location: Austin, TX (Remote) Duration: 12+ Months Client job number: 70127001 Job Description: The Educator Certification Online System (ECOS) supports and facilitates the certification of Texas educators. This position will work with the ECOS development manager to provide the following Software Development Services: 1) Design complex modules for ECOS and its subsystems 2) Rewrite and migrate existing Classic ASP

Easy Apply

Contract, Third Party

70 - 80

Senior Application Developer

Fort Meade, Maryland

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Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking an Applications Developer to join our intel team. You will act as an embedded developer/general-purpose CNO software engineer for up-and- coming projects where you will design, develop, prototype, modify, and integrate solutions to provide mission-centric results. You will work closely with analysts, operators, data scientists and

Full-time

USD 164,000.00 - 200,000.00 per year

Senior .NET Full Stack Developer

Remote or King of Prussia, Pennsylvania

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Today

Job Title: Senior .NET Full Stack Developer Location: King of Prussia, PA, Cherry Hill, NJ, Wilmington,DE, Baltimore,MD, Stamford,CT Duration:12+ Months Contract W2 Only (No C2C) Job Summary: We are seeking an experienced Senior .NET Full Stack Developer with 7+ years of hands-on experience developing, maintaining, and supporting enterprise platform applications using the modern Microsoft technology stack. The ideal candidate will possess strong expertise in C#, ASP.NET Core, .NET Framework

Contract

$DOE

Role: Senior .NET Full Stack Developer - Louisville, KY/Cincinnati, OH/New Albany, IN/St. Louis, MO/Chicago, IL

Remote or Louisville, Kentucky

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Today

Role: Senior .NET Full Stack Developer Location: Louisville, KY/Cincinnati, OH/New Albany, IN/St. Louis, MO/Chicago, IL Looking For W2 No C2C Job Summary: We are seeking an experienced Senior .NET Full Stack Developer to design, develop, test, and maintain enterprise-grade applications using Microsoft .NET technologies. The ideal candidate will possess strong expertise in C#, ASP.NET Core, .NET Framework/.NET Core, SQL Server, SSIS, REST APIs, and modern front-end frameworks such as Angular, R

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Contract

$DOE

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