SR .NET DEVELOPER
$70 per hourTwenty First Systems
Sr .NET Developer
Job Title:.Net Developer
Reports To: Program Manager
Location: Bethesda, MD; Arlington, VA
Start Date: Immediately
Clearance Requirement: Public Trust
Tax Term: W2 or C2C
Hourly Rate: 70$
Visa Status: Must be a U.S. Citizen or U.S. Legal Permanent Resident (GC)
Job Summary: The experienced .NET Developer is a member of the project team who takes responsibility for implementing parts of the system architecture using best practices in an agile development environment. This will include coding, unit testing, using design patterns, learning new technologies, and becoming an expert in one part of the system. The candidate will also be expected to provide technical leadership, architectural support, and overall solution design support. Qualified applicants must be detail-oriented, result-driven individuals who work well within team environments and have good interpersonal skills, as well as good client interaction skills.
Responsibilities:
- Responsible for design, development, and implementation of solutions to integrate with other applications to exchange data
- Work with system owners, business owners, technical teams, and functional teams to design, implement, test, and validate a system
- Write.NET and ASP.Net code based on requirements defined in use cases
- Develop Object Oriented code and/or provide maintenance and enhancements to existing code using.NET and ASP .NET
- Work with the team and business users to understand requirements, write functional and technical specifications
- Work with a multidisciplinary set of stakeholder, contractors, and team members to design and develop software solutions
- Develop new code and/or support operations, maintenance, and enhancements of existing code
- Develop conceptual and technical design including use of OOA and OOD techniques
- Conduct multiple levels of testing including unit, system, integration and performance
- Design, develop, and test software solutions primarily composed of Microsoft technologies
- Estimate and plan releases
Requirements:
- Must be a U.S. Citizen or U.S. Legal Permanent Resident
- Eligible for U.S. Government Clearance
- Minimum 5 years in systems integration and development, package implementation, and/or interactive design
- Minimum 4 years in.NET development
- Knowledge and Experience in C#,.Net, ASP .NET, and Microsoft SQL Server
- Solid understanding of all parts of Software Engineering (e.g. Requirements, Design, Implementation, Testing) and the Software Development Life Cycle (SDLC)
- Experience working in agile or iterative SDLCs
- Experience with Object Oriented Technologies
- Ability to work with key owners and stakeholders to document requirements
- Experience with.NET-specific technologies such as Windows Presentation Foundation (WPF), Windows Communication Foundation (WCF) or Workflow Foundation (WF) is desirable
- Experience with SharePoint is highly desirable
- Experience integrating, modifying, and configuring Commercial Off The Shelf (COTS) products
- Bachelor’s Degree required from college or University
About Our Client: Our client is a leading provider of consulting, technology, and marketing services to a wide array of U.S. governmental agencies. Focused on driving long-term change and transforming the citizen experience, we use technology to help agencies become more accessible and transparent. With a track record of delivering mission-critical solutions and the ability to leverage commercial best practices, they serve as trusted advisers to government agencies such as the Federal Bureau of Investigation, Library of Congress, National Institutes of Health, United States Department of Health and Human Services, and United States Department of Homeland Security. Sapient is a registered service mark of Sapient Corporation. *Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this role, which include hearing, speaking, typing, and occasionally moving and/or lifting up to 15 pounds. Our client is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, orientation, national origin, disability, or protected veteran status.
- ...Senior.Net Developer Role is 4 days on site in DC Strong FS.NET developer with heavy cloud experience (AWS or Azure prefer Azure) Looking for a senior.Net Developer who is experienced on the cloud side with Azure (ideally) - good in programming in Azure/cloud...Senior
- ...Senior.Net Application Developer Marathon TS is seeking a Senior .Net Application Developer to support the critical mission of the Drug Enforcement Administration (DEA). We are developing the applications that provide the tools necessary for our drug enforcement agents...Senior
- ...Senior NET Blazor The Senior NET Blazor is responsible for building secure, high-quality application features within the VA-EISS... ...Agile execution, testing, remediation, and production readiness Develop secure, high-quality C#,.NET, and Blazor features for VA-...SeniorTemporary workWork at officeImmediate startFlexible hours
- ...Job Description Job Description Sr .NET DeveloperAbout Blue Rose Consulting Group Blue Rose Consulting Group is a mission-driven... ...Remote Blue Rose Consulting Group is seeking a Senior .NET Developer (Programmer 3) to support a large-scale .NET application within...SeniorFor contractorsRemote work
- ...Role: Sr. Full Stack .Net Developer Location: McLean Virginia Duration: 12 Months Job Description: ~6+ years of prior software development experience required. ~ STRONG .Net development with Full Stack development along with strong SQL...Senior
- ...Job Title: Senior .NET Developer Location: Washington, DC 200019 Work Arrangement: Hybrid Agency Interview Type: Webcam Only Complete Description: 16+ years of experience. Formulates and defines system scope and objectives based...Senior
- ...Title: Senior .NET Developer *Local to DMV Area Description: Duties and Responsibilities: The .NET Developer role requires a service- oriented mentality, high sense of ownership of the problems and requests assigned, focus on managing and resolving issues...SeniorLocal area
- ...I have an opportunity for a "Senior .NET Developer" - (Washington, DC - Remote till COVID). and I am looking for a candidate who can join Immediately if you are interested, reply to me with your updated resume or if you could refer someone I would really appreciate it...SeniorContract workImmediate startRemote work
- ...Senior.NET Developer Location: Washington, DC Day 1 on-site (short term remote can be provided) Duration: 6+ Months Major Duties and Responsibilities: Assist developers, analysts, and designers in conceptualization and development of new software programs...SeniorTemporary workImmediate startRemote work
- ...critical, enterprise-wide applications ~ Strong knowledge of .NET platform and coding practices for mid-tier applications that... ...business logic and calculations. This role is not for UI/Front end developers. ~ Experience in building scalable, server-side enterprise...Senior
- ...We are looking for a Senior .NET Developer to join our growing team supporting brand new contract in partnership with Microsoft supporting new product development (both software/hardware) for a Federal agency. You will play a key role in designing, building, and evolving...SeniorContract work
- ...Senior.NET Developer Andworx is seeking a Senior.NET Developer to play an important role in the development of mission and operational applications for a federal government agency. As Senior.NET Developer, you will be working on an Agile team that develops enterprise...SeniorLocal area2 days per week
- ...Senior .NET Developer Location: Onsite, Hybrid - 3x days / week - Washington, DC Clearance Required: Active Secret Join the Mission Improvix Technologies is seeking a Senior .NET Developer to provide technical leadership and architectural direction for...SeniorWork at officeLocal area
$115k - $130k
...Senior.NET Developer McLean, Virginia; McLean, Virginia, United States; Washington, DC Revolutional delivers advanced technology solutions and mission support to federal agencies across civilian, health, and national security environments. We apply modern capabilities...SeniorPermanent employmentFull timeFlexible hours- ...environment to support the full software development lifecycle. The focus is on new development and modernization of legacy applications into .NET-based solutions using technologies such as C#, ASP.NET Core MVC, Web API, Windows Forms, and SQL Server. The position requires...SeniorShift work
- ...Role: Senior .NET Developer Location: Bellevue, WA Term: Full Time Job Description Must Have Technical/Functional Skills C#; Python; RestAPIs; Object Oriented Programming; LINQ; Azure Function; Azure DevOps; GEN AI and RAG; Microsoft Copilot; CI...SeniorFull time
- ...As a .NET Full Stack Developer, you will play a critical role in the development and maintenance of web applications and services. You will be responsible for designing, coding, testing, and deploying high-quality software solutions using the .NET framework and associated...SeniorFull time
- ...Senior.NET Developer With Dynamics CRM Visa status: U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. Tax Terms: W2, 1099 Corp-Corp or 3rd Parties: Yes Long Term Washington DC Bachelor's Degree with 7+ years of experience as an application...Senior
$140k - $150k
...other position specific requirements which may impact salary Position Overview Amatriot is seeking a Senior .NET Application Developer to support the mission of the Drug Enforcement Administration (DEA). This role develops and enhances applications that...SeniorFull time- ...Description: Hybrid 2-3 days in Reston, VA As Sr. .Net Developer II, you will serve as a senior full-stack engineer and technical lead, building and modernizing enterprise applications using .NET and React while driving architecture, development standards, tooling...SeniorHourly payPermanent employmentFull timeWork at officeLocal area
- ...Senior.Net Application Developer AVER is a fast-growing SDVOSB that has achieved significant revenue growth over the past 5 plus years with much of our work focused on Data Analytics, Mission Support, IT Modernization and Biometrics. AVER is seeking a Senior.Net Application...Senior2 days per week
- ...Our client in Washington, DC is seeking a highly skilled Senior Full Stack .NET Developer to design, build, and support robust enterprise applications using the Microsoft tech stack. This role requires deep expertise across front-end and back-end development, strong...Senior
- ...and coordinate bug fixes to uphold the software quality standards Develop user training programs, documentation, and support frameworks to... ...Senior Full Stack Developer with strong experience in Angular, .NET, and Microsoft Azure, capable of delivering robust, scalable...SeniorFull timeTemporary workRelocation
$105k - $120k
...testing, deployment, and maintenance of software applications. Develop high-quality, scalable solutions using C, C++, and/or C#.... .... Experience developing applications using C# and the Microsoft.NET ecosystem. Experience with C/C++ is preferred. ~ Advanced proficiency...SeniorLocal areaRemote work- ...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...SeniorLocal areaFlexible hours
- ...US Citizen & local to DMV Position: Senior .NET Full Stack Developer (AWS & ESRI ArcGIS) Location: DC (Onsite) Duration: Longterm Job Description: Seeking for Senior Application Developer/Engineer to design and develop cloud-native applications...SeniorLocal area
- Edgewater Federal Solutions is seeking an experienced Full Stack Sr. Application Developer to join our development team in Washington, D.C. The role uses .NET Core C#, Web API, Angular 16+, EF Core, and SQL Server to build and maintain web applications in a fast-paced Agile...Senior
- ...collaborative, high-growth environment. Job Title: Senior Developer Duration: 6 Months Work Type: Remote Location:... ...minimum of 8 years of hands-on experience as follows Must have: .Net framework, Angular20, C#, C# with Odata, MS SQL server ability,...SeniorLocal areaRemote work
- ...Science, Engineering or Management Information Systems or Master’s degree. • Minimum 7 years of experience • The developer should have a strong understanding of .Net/Node and its core concepts, such as components, state management, and lifecycle methods. They should be able...Contract workLocal area
- 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...SeniorLocal areaFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to SR .NET DEVELOPER. Be the first to apply!
- senior c# .net software developer Arlington, VA
- .net developer Arlington, VA
- c# .net web developer Arlington, VA
- .net engineer Arlington, VA
- senior net developer remote Arlington, VA
- senior technical analyst Arlington, VA
- senior associate attorney Arlington, VA
- senior developer Arlington, VA
- sr industrial security specialist Arlington, VA
- senior aws cloud engineer Arlington, VA



