Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Sr .Net Developer

$115k - $150k

Alpha Omega Services

Sr.Net Developer

Alpha Omega is seeking a highly skilled Sr.Net Developer for a remote position on one of our prime Federal projects in Arlington, VA. Ideal candidate has previous experience working with federal and large commercial clients, financial, insurance and banking with a strong emphasis on user experience, usability, client interaction, customer satisfaction, and a clear understanding of new and emerging technologies.

Key Responsibilities:

  • Support mission critical complex large scale application development and maintenance.
  • Provide Tier 3 support for public facing applications.
  • Design and develop quick prototypes.
  • Develop documentation throughout the software development life cycle.
  • Upgrading, configuring and debugging existing systems.
  • Provider development support on-premises application.
  • Participate on an agile O/M team.
  • Revise, update, refactor and debug code.
  • Serve as an expert on applications and provide technical support.

Required Qualifications:

Education:

  • BS/BA in Computer Science, Information Systems Management, or similar degree.

Experience/Skills:

  • Federal agency requires US Citizenship.
  • Proficient communication, facilitation, mediation, and verbal and written communication skills to be demonstrated upon interview.
  • Client-facing skills are required.
  • 7+ years of experience in Microsoft legacy environment, ASP (Classic/Native), VB.NET, DLLs, COM+.
  • Must have experience with Azure cloud environment, IIS Server on VMs.
  • Experience with Active Directory, ADFS and Azure Entra.
  • Experience with GitHub Enterprise, Azure DevOps, Microsoft TFS and CI/CD pipelines.
  • Must have experience with SQL Server.
  • Must have Experience with Stored Procedures and SSIS Packages.
  • Possess high attention to detail with ability to follow detailed Standard Operating Procedures.
  • Experience in solving complex business issues- strong analytical and problem-solving skills.
  • Must have excellent time management and task prioritization skills.
  • Must have excellent verbal and written communication skills.

Preferred Qualifications:

  • Full stack development experience
  • Experience working directly with technical and business teams.
  • Experience with Java and Spring boot is plus
  • Knowledge of SDLC, IT governance and operations
  • Comprehensive knowledge of hardware, software, and application dependencies.

Salary and Benefit Information:

The likely salary range for this position is $115,000 - $150,000. This is not, however, a guarantee of compensation or salary. There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, education and certifications as well as contract provisions regarding labor categories that are specific to the position and could fall outside of this range.

Joining the Alpha Omega team entitles you to participate in all retirement benefits, plans of deferred compensation, health and insurance benefits, and other such benefits as set forth in the company's policy and benefits manuals. See below, to name a few:

  • PTO including paid parental, military, and bereavement leave
  • Eleven (11) paid Federal holidays, five of which are floating holidays (as designated by the company's holiday schedule each year)
  • Health and Dental Insurance (including 100% employer paid premiums for employee coverage under the HDHP health plan)
  • Life Insurance, STD/LTD term disability coverage, with employer paid premiums
  • 401 (k) plan with a match that is 100% vested after you complete two years of service
  • FSA/DFSA/HSA flexible benefit plans
  • Annual Tuition & Professional Development Reimbursement benefit

We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Culture and Values:

Guided by our core values—Harmony, Engagement, Accountability, Resourcefulness, and Tenacity (HEART)—we foster a culture of innovation, collaboration, and continuous learning and are committed to delivering high-impact solutions. We recognize and reward hard work.

Through our H.E.A.R.T. Awards Program, colleagues and managers can recognize each other for actions that exemplify these values. Recognized employees receive a detailed nomination highlighting their contributions, which is shared with their manager. Each quarter, select nominees have the opportunity to receive a monetary bonus as an extra thank-you for their impact.

Our Company:

Alpha Omega is an award-winning Federal IT solutions provider dedicated to delivering mission-enabling technology and strategic solutions across the National Security, Federal Financial, Healthcare, and Space & Science domains. Since our founding in 2016, we have grown to over 800 employees nationwide with $230m in revenue. With the January 2025 acquisitions of SeKON and Macro Solutions, we have expanded our capabilities to further support our customers in digital modernization, artificial intelligence, and cybersecurity.

We are committed to supporting our agency partners as they transform their operations, delivering on our purpose to ensure the safety, security, and well-being of future generations:

  • National Security – Supporting agencies such as the Department of Homeland Security (DHS) and the Department of State.
  • Federal Financial – We bring deep expertise in enterprise financial systems, supporting agencies like the Securities and Exchange Commission (SEC) and the Federal Deposit Insurance Corporation (FDIC).
  • Healthcare – Our Health IT capabilities, enhance health outcomes for the warfighter via the Defense Health Agency (DHA) and support public health initiatives at the Centers for Disease Control and Prevention (CDC), National Institutes of Health (NIH), and the Substance Abuse and Mental Health Services Administration (SAMHSA).
  • Space & Science – We leverage technology to advance agricultural sustainability, secure our nation's food supply, and prepare for natural disasters, working with the National Oceanic and Atmospheric Administration (NOAA) and the United States Department of Agriculture (USDA).

Through strategic partnerships, intellectual property, and relentless drive for innovation, Alpha Omega is shaping the future of government technology. We are proud to be a Virginia Best Places to Work 8 times, an Inc. 5000 honoree 7 times, and a Washington Post Top Workplaces 4 times. Join us in driving transformation that secures the nation's future.

Alpha Omega Integration, LLC (Alpha Omega) is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Sr .Net Developer in Vienna, VA vacancy
  •  ...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-... 
    Senior
    Temporary work
    Work at office
    Immediate start
    Flexible hours

    Integral Federal

    McLean, VA
    5 days ago
  •  ...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

    Marathon TS

    Arlington, VA
    3 days ago
  • $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... 
    Senior
    Permanent employment
    Full time
    Flexible hours

    Harmonia | Revolutional

    McLean, VA
    4 days ago
  • $64k - $104k

     ...Demonstrated experience building enterprise-grade applications using the .NET framework, with .NET Core preferred, and strong proficiency in...  ....NET technologies such as C#, ASP.NET Core, and Blazor. Develop and support web applications, APIs, background services,... 
    Senior
    Contract work
    For contractors
    Work at office

    DKW Communications

    McLean, VA
    2 days ago
  •  ...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... 
    Senior
    Hourly pay
    Permanent employment
    Full time
    Work at office
    Local area

    Eliassen Group

    Reston, VA
    4 days ago
  •  ...support of multiple web-based applicationsApply strong knowledge of web applications, and web technologies using .NET, Angular JS and JavaScript to develop quality solutionsEnsure that business rules are consistently applied across, to limit the possibility of inconsistent... 
    Full time
    For contractors

    Technamo

    McLean, VA
    1 day ago
  • Company DescriptionUSM Business Systems Inc. is a quickly developing worldwide System Integrator, Software and Product Development, IT Outsourcing...  ...in Solution, Design and Development of applications using .Net framework• Bachelor’s degree in Computer Science or Engineering... 
    Work experience placement
    Worldwide

    USM Systems

    McLean, VA
    3 days ago
  • $86.6k - $181.8k

    Job Title: .NET Software Developer, Senior Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * *... 
    Senior
    Full time
    Contract work
    Work experience placement
    Flexible hours

    Caci

    Springfield, VA
    17 hours ago
  •  ...Position Overview: 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, support production environments, and drive data quality... 

    InstantServe LLC

    Vienna, VA
    2 days ago
  • $130k - $185k

     ...Senior .NET Developer Job Locations US-VA-Herndon | US-Remote Job ID 2026-3742 Category Software Development/Engineering Type Full Time Job Description NetImpact Strategies is seeking a Senior .NET Developer to join... 
    Senior
    Full time
    Local area
    Immediate start
    Remote work

    NetImpact Strategies

    Herndon, VA
    4 days ago
  • Company DescriptionUSM Business Systems Inc. is a quickly developing worldwide System Integrator, Software and Product Development, IT Outsourcing...  ...development and business keenness.Job DescriptionPositon: .NET developerLocation: Mclean, VADuration: Fulltime/... 
    Full time
    Worldwide

    USM Systems

    McLean, VA
    1 day ago
  •  ...your work first-hand Microsoft tech stack development on a regular basis.Desired SkillsCreative problem solver.Proficiency in C#, ASP.NET, SQL Server, and/or ability to quickly learn Databases, APIs, and new technologies.High energy / attitude.Familiarity with user-... 
    Permanent employment
    H1b
    Work at office
    Work from home
    Night shift

    EAI

    Vienna, VA
    2 days ago
  • $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... 
    Senior
    Full time

    The Amatriot Group

    Arlington, VA
    5 days ago
  • $90.3k - $189.6k

    Job Title: Full Stack Software Developer with C#/.NET ExpertiseJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *Bring... 
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI International

    McLean, VA
    1 day ago
  •  ...Job Title: Full Stack Developer Location: Vienna, VA Type: Contract Compensation: Open to Both C2C and W2 options Work Model:...  ...experience in working with application development platforms (e.g., C# .Net, React, JavaScript, SQL, MongoDB, MuleSoft, Azure Cloud, etc.)... 
    Contract work
    Temporary work
    Local area
    Remote work

    System One

    Vienna, VA
    2 days ago
  • $72 - $79 per hour

     ...Job Description Job Description DEA - .NET Team Lead - Pay range: $72-$79/hour; do not promise above $79/hour without checking...  ...permanent employment after 6 months - Will lead a team of 5-7 developers - Key skills: ASP.NET, C# MVC, .NET Core/Standard, JavaScript... 
    Senior
    Permanent employment

    DEA

    Arlington, VA
    2 days ago
  •  ...Choose MITRE for a career with purpose — and help shape the future.The Strategic Non-Kinetic Effects (SNKE) Mission Division at MITRE develops cutting-edge capabilities to gain and maintain strategic advantage. We are a cross-functional team of subject-matter-experts,... 
    Senior
    Internship
    Local area

    Mitre

    McLean, VA
    2 days ago
  •  ...Connections, LLC is looking for a Senior Software Engineer to join their McLean, VA team. The candidate must have a strong background in .NET development and SQL, with at least 8 years of experience in software engineering. The role involves designing and maintaining... 
    Senior

    Visual Connections LLC

    Mc Lean, VA
    3 days ago
  •  ...Senior .Net Developer Arlington, VA or Merrifield, VA - ONSITE Secret Clearance is required to start Responsibilities: • Works in a collaborative team environment to develop and enhance code for applications built within the Concorde framework, ensuring high... 
    Senior
    Temporary work
    Local area

    System One

    Reston, VA
    5 days ago
  •  ...of commercial acquisition, co-research, and more.Roles & Responsibilities:This position offers the ability to take a key role in developing, experimenting, and refining capabilities for MITRE’s innovative framework for industry enablement, engaging with industry and academia... 
    Senior
    Temporary work
    Work experience placement
    Internship
    Work at office
    Local area

    Mitre

    McLean, VA
    5 days ago
  • $160k - $200k

     ...intelligence collection disciplines. The ideal candidate will leverage technical expertise and innovative problem-solving skills to develop, coordinate, and manage comprehensive intelligence collection requirements. This role involves utilizing appropriate Intelligence... 
    Senior
    Contract work

    Saic

    Mc Lean, VA
    3 days ago
  • $114k - $171k

     ...history.Northrop Grumman Space Systems is seeking an Principal OR Sr. Principal RF Electronic Systems Engineer to join our team. This...  ...issues impacting RF system performance.Work with software developers to integrate new hardware components into the system and deliver... 
    Senior
    Full time
    Relocation package
    Shift work

    Northrop Grumman

    Fairfax, VA
    3 days ago
  •  ...Engineer to direct sustainment, enhancements, testing, integration, and deployment for the FABIS biometric platform. You will work with C#/.NET, Microsoft SQL Server, and DevSecOps practices to deliver mission-critical solutions. The role is primarily remote with weekly on-... 
    Senior
    Remote work

    Ideal Innovations Incorporated

    Bethesda, MD
    4 days ago
  • Company DescriptionUSM Business Systems Inc. is a quickly developing worldwide System Integrator, Software and Product Development, IT Outsourcing...  ...requirement and send me your updated profile ASAP.Title: .net Software EngineerLocation: Arlington, VADuration: full... 
    Work experience placement
    Immediate start
    Worldwide

    USM Systems

    Arlington, VA
    3 days ago
  • $142.2k - $213.4k

    RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: Top SecretTRAVEL: NoDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around...
    Senior
    Full time
    Work at office
    Remote work
    Relocation package
    Shift work

    Northrop Grumman

    McLean, VA
    1 day ago
  • $135.8k - $213.4k

     ...subject to maintenance at the level of clearance and program access required for the position in the future2+ years of experience with developing and evaluating behavioral and structural architecture diagrams using MBSE (Model Based Systems Engineering) methodology and... 
    Senior
    Full time
    Relocation package
    Shift work

    Northrop Grumman

    Fairfax, VA
    4 days ago
  • ITCON Services is seeking to hire a motivated and knowledgeable .NET Full Stack Developer to join our team. The developer will actively advise and participate in the architecture and hands‑on development of a high‑visibility .NET application being developed from the ground... 
    Permanent employment
    Full time
    Work experience placement
    Flexible hours

    ITCON Services

    Vienna, VA
    1 day ago
  •  ...along with their work authorization copy, contact information, Active linkedin profile. MUST HAVE AWS EXPERIENCE with Certification • Minimum 8-10 years of experience in software development • Expertise in .NET Core (v3.1+ required, v6 preferred) and .NET Framework

    Kasmo Global

    Sterling, VA
    4 days ago
  • $142.2k - $213.4k

     ...'re making history.Northrop Grumman’s Space Sector is seeking a Sr Principal DevOps Engineer to join our team in Aurora, CO or Fairfax...  ....Collaborate with senior engineers, system administrators, and developers to implement improvements and operational changes defined by... 
    Senior
    Full time
    Relocation package
    Shift work

    Northrop Grumman

    Fairfax, VA
    4 days ago
  • $135.8k - $213.4k

     ...they're making history.Northrop Grumman Space Systems is seeking a Sr. Principal Electromechanical Engineer to join our team. This...  ...writing to document design alterations, prepare status reports, and develop design specifications and validation plans.Maintain a proactive... 
    Senior
    Full time
    Relocation
    Shift work

    Northrop Grumman

    Fairfax, VA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr .Net Developer. Be the first to apply!