.Net Web Developer Jobs in Reston, VA

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.Net Backend Architect

TechSME Inc

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Remote

Contract

Minimum 10+ years of experience required. Proficiency in .NET Core Architecture, C++, and C#. Experience with AWS services like DynamoDB, EC2, Kafka, and EKS. Knowledge of microservices. Implement systems to meet CFTC, NFA, KYC, and AML compliance requirements. Contribute to CI/CD pipelines, secure software deployments, and observability tools. Work on system architecture and event-driven architecture, designs that power FCM trading platforms.
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Posted 6 days ago

Backfill Role :: .Net Architect with Azure and AWS :: Remote :: (Only W2)

Bright Sol

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Remote

Contract

Role: .Net Architect with Azure and AWS Location: Remote (Travel Once in a month to State of PA) Contract: Long term Looking for 12+years experienced consultants who can work only on W2 Job Description: A .NET Architect with Azure and AWS expertise is a highly sought-after role involving designing, developing, and implementing scalable and secure applications using .NET technologies within both Azure and AWS cloud environments. This professional serves as a bridge between technical and business
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Posted 6 days ago | Updated 4 days ago

.Net Architect (14+ Exp.)

Swanktek

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Remote

Full-time

Architecting and Designing Applications: Design, develop, and implement solutions using .NET technologies on Azure, ensuring scalability, security, and performance. Application Modernization and Migration: Lead initiatives to modernize existing applications and migrate them to Azure, utilizing techniques like microservices and serverless architecture. Collaboration and Communication: Work closely with business stakeholders, development teams, and infrastructure teams to define requirements and e
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Posted 19 days ago

.Net Fullstack Architect (Remote)

Neo Prism Solutions, LLC

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Remote

Contract

Job Title : Full stack .Net Architect Location : Remote SKILLS/EXPERIENCE REQUIREMENTS 12 - 15 years application development experience with the Microsoft .NET platformStrong .NET Core (C#) experience with Web Services/API's, HTML/CSS (Bootstrap)Demonstrated proficiency with SQL, stored procedures, and database designThorough understanding of object-oriented development (OOD), Domain driven design, including an in-depth knowledge of implementing RESTful, micro services design patterns and archit
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Posted 7 days ago | Updated moments ago

Software Engineering Manager (.NET)

Mastercard

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Arlington, Virginia, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po
Posted 60+ days ago | Updated 4 hours ago

Senior .Net Full-stack Lead/ Architect

Fiekon

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Remote

Contract

Title: Senior .Net Full-stack Lead/ Architect Duration: 6+months Location; Remote We are seeking a seasoned Senior Full-Stack Lead/ Architect. who is passionate about building robust, scalable, and innovative solutions. The successful candidate will engage directly with the business to deeply understand unique challenges and drive end-to-end solutions from design through delivery, while mentoring team members and promoting software excellence. Responsibilities: Analyze business requirements to
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Posted 7 days ago | Updated 7 days ago

REMOTE:::.Net Backend Lead ( Trading Platforms) 10+ years - ONLY W2

FutureTech Consultants LLC

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Remote

Contract

Hello, Hope you are doing good, this is Hima from Appridat Solutions, LLC and I have a job opening with our direct client. Please have a look at the below job description and let me know your interest. Please share me the latest copy of your resume. Role: .Net Backend Lead Duration: Long term Remote role Mode of interview: Coding test + 30 mins video call Key Skills: C++, C#, .Net Core, AWS Cloud, Trading Platforms, Futures Commodity Commissions Market (FCM) platform, KYC, AML We are seeking a
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Posted 10 days ago

.net/SQL Developer

Technology Recruiting Solutions,Inc.

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Remote or Houston, Texas, USA

Full-time

.net/SQL Developer Contract Developer Houston based company has an immediate need for a .net/SQL Developer for a contract role. This position is based in Houston but will be a mostly remote role. Requirements include: 3 plus years of .net experience with Java Script. This role will be working on an existing website assisting with integration to a new ERP system. This role is not available for C2C and does require that the candidate be eligible to work in the United States without any sponsorshi
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Posted 60+ days ago | Updated 18 days ago

.Net, C#, C++ Lead Engineer

Photon

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Remote

Contract

Greetings everyone, I hope you are staying safe. We are hiring a .Net, C#, C++ Lead Engineer to join our Digital Engineering team. Who are we? For the past 20 years, we have powered many Digital Experiences for the Fortune 500. Since 1999, we have grown from a few people to more than 4000 team members across the globe that are engaged in various Digital Modernization. For a brief 1 minute video about us, you can check ;/u> Job Title: .Net, C#, C++ Lead Engineer Location: Remote Job Description:
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Posted 47 days ago | Updated 18 days ago

Azure DevOps Architect with Corillian and .Net

American IT Systems

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Remote

Contract, Third Party

Title: Azure DevOps Architect, Corillian and Azure in .Net IIS window environment Location: Remote Contract: 6+ Months Contract Financial services or regulated industry experience preferred No. of years in Corillian No. of years in .Net Proficiency in multiple scripting languages Powershell, Bicep, etc) Experience with cloud platforms (Azure preferred, AWS or Google Cloud Platform acceptable) Proven track record of designing and implementing CI/CD release strategies for enterprise applications
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Posted 3 days ago

Dot Net Architect--Part Time

Newt Global

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Remote

Part-time

Key Responsibilities: Architectural Leadership Design and implement scalable, secure, and maintainable software architectures using .NET technologies (ASP.NET Core, .NET Framework). Define and enforce best practices, coding standards, and development processes to ensure high-quality deliverables. Provide end-to-end technical leadership on architecture, design, and implementation of full-stack solutions. Full-Stack Development Lead the development of backend services and APIs using C#, ASP.NET
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Posted 5 days ago | Updated 3 days ago

.Net Architect /Consultant (Part Time)

Newt Global

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Remote

Part-time

Title:- .Net Architect /Consultant Location:- Irving TX (REMOTE) Contract Type: Part Time Description Key Responsibilities: Architectural Leadership Design and implement scalable, secure, and maintainable software architectures using .NET technologies ( Core, .NET Framework). Define and enforce best practices, coding standards, and development processes to ensure high-quality deliverables. Provide end-to-end technical leadership on architecture, design, and implementation of full-stack solution
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Posted 46 days ago | Updated 6 days ago

.Net Back End - Azure

Kforce Technology Staffing

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Remote or Boca Raton, Florida, USA

Third Party, Contract

RESPONSIBILITIES: Kforce has a client seeking a Senior .NET Developer remotely. Key Responsibilities: * Lead the design, development, and deployment of robust backend services using .NET Core/.NET 6+ * Architect and implement distributed, event-driven systems using Dapr for service-to-service communication, pub/sub, and state management * Develop and manage message-based integrations using RabbitMQ, Kafka, or Azure Service Bus * Work extensively with MySQL including stored procedures, schema de
Posted 26 days ago | Updated moments ago

Part-time C# .Net / FoxPro Developer - 100% remote (MUST HAVE FOXPRO and live in U.S.)

Columbia Advisory Group

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Remote

Contract

C# .Net / FoxPro Developer needed for ongoing contract (6+ months). Role is approximately 20 hours per week (during business hours, and some can be done afterhours) and is 100% remote (must be based in U.S.). Youre a fit if you have: Solid work experience utilizing C# .NetExperience migrating FoxPro code to modernized applications/codebase - FoxPro experience must have been within the last 10 yearsExperience with data/file imports, exports, and data scrubbing/validation routinesDemonstrated abil
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Posted 60+ days ago | Updated 3 days ago

Software Engineer II (Python or C#/.Net) Remote

ConsultNet, LLC

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Remote or Birmingham, Alabama, USA

Full-time

Software Engineer II (Python or C#/.Net) Remote (EST or CST) 8 month contract Pay Rate: $50.00 to $52.00 per hr. We're looking for a hands-on Software Engineer II to support a major migration from a legacy system to a modern enterprise data platform. This role is part of an ongoing transformation project that began in early 2025. You'll help accelerate development by contributing to backend services and high-performance data pipelines in a collaborative Agile environment. Key Responsibilities De
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Posted 46 days ago | Updated 4 hours ago

,Net Developer with Medicaid Experience

Millennium Software, Inc.

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Remote

Full-time

Hi, We are looking for an .Net Developer on W2 . Its an Onsite role.
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Posted 60+ days ago | Updated 13 days ago

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's)

ConsultNet, LLC

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Remote or Dallas, Texas, USA

Full-time

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's) Remote (MST, Central or Eastern Time Zone) 6-12-month Contract or Contract to Hire Pay Rate: 75-80/hr A rapidly growing technology-driven organization focused on streamlining how sensitive records are managed, processed, and shared. They specialize in transforming manual, compliance-heavy workflows into secure, efficient digital solutions-helping clients improve access, accuracy, and overall operational performance across regulated env
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Posted 6 days ago | Updated 4 hours ago

.Net Backend Lead

Photon

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Remote

Contract, Third Party

.Net Backend Lead Developer Remote We are seeking a hands-on Lead Backend Engineer to help build a new Futures Commodity Commissions Market (FCM) platform a greenfield, regulated financial trading product focused on binary sports prediction markets. This is a rare opportunity to shape the architecture and implementation of a federally regulated financial system from the ground up. You'll be responsible for designing and developing core backend services for a compliant, low-latency trading platfo
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Posted 51 days ago | Updated 4 days ago

Sr. SDE - .Net

Unify Technologies, Inc.

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Remote

Full-time

Required Skills and Experience: ASP.Net" rel="nofollow">preserve;\">ASP.Net Core, Angular, SQL Server, SSIS, Web API, Web Services, SSO, and SSRS Qualification: Master's/Bachelor's degree or equivalent in Computer Science related fields. Experience: 5+ years
Posted 60+ days ago | Updated 1 hour ago

.Net Backend Architect

Photon

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Remote

Contract, Third Party

.Net Backend Architect Remote We are seeking a seasoned Backend Architect with deep expertise in regulated financial systems, trading platforms, and end-to-end trading infrastructure to lead the architecture and backend development of a greenfield Futures Commodity Commissions Market (FCM) platform. This product will power a federally regulated sports prediction market, akin to Robinhood s financial trading model, requiring full compliance with CFTC and NFA regulations. You will design, architec
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Posted 51 days ago | Updated 4 days ago