Posted 1 day ago
Top Secret/SCI
$180,000 - $190,000
Unspecified
IT - Software
Arlington, VA (On-Site/Office)
Purpose and Impact:
Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Senior .NET/C# Software Developer to join our team of passionate individuals in Ft. Belvoir, VA. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission.
INSCOM executes mission command of operational intelligence forces; conducts worldwide multidiscipline and all source intelligence operations; delivers advanced skills training, linguist support, specialized quick reaction capabilities, intelligence related logistics, and communications in support of Army, Joint, and Coalition command and the National Intelligence Community. You will be part of a team that provides comprehensive automation/information technology support to the Data Capabilities Division (DCD) worldwide intelligence dissemination, data management, and knowledge management missions.
Work Schedule:
• Monday-Friday, 8 hours/day, Core hours: 0900-1500
Essential Responsibilities:
• Provide application development for a Microsoft-oriented enterprise environment ("including, but not limited to MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development knowledge) for custom in- house developed web applications.
• Collaborate with peers to review code to ensure that best practices, team norms, and coding standards are followed.
• Provide web development and version control for a Microsoft-oriented enterprise environment using Government provided tools (Microsoft Visual Studio and GitLab).
• Estimate the level of effort required for all design, development, deployment, and testing and provide information to COR.
• Participate in an iterative development team through all facets of to include sprint planning, daily scrum meetings, reviews, and retrospectives.
• Develop documentation to include test plans, end-user documentation, wireframes, mockups, Use Case Diagrams, and flowcharts. All documentation shall be stored in identified Government document repositories.
• Use Azure Dev Ops (ADO) or GitLab for all code changes and version controls.
• Create/update test plans and record the results within the developer documentation.
• Collaborate with the Quality Assurance (QA) team to mitigate all findings identified during testing.
• Build fully deployable packages for development, staging, integration, and production environments and submit deployment requests for approval.
• Use all approved Government provided templates for required documentation and ensure all development related documents are stored in a single document repository, identified by the Government.
• Leverage advanced programming skills to develop and incorporate mandatory fields of the DNI Audit.XML specification in accordance with ICS-500-27 Collection and Sharing of Audit Data.
• Adhere to software development methods including Agile, SCRUM, and Lean in the development of software.
• Provide project status reports to the Government at all stages of the project lifecycle as required.
• Utilize JIRA to record and report bugs to Quality Assurance, project managers, and other stakeholders.
• Ensure SOPs, "How To" guides, testing plans, and accreditation paperwork are complete for each application.
Work Environment, Physical Demands, and Mental Demands:
• Open office work desk within a SCIF.
Minimum Requirements (Knowledge, Skills, and Abilities):
• Ten years of experience in .NET Development (including .NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development).
• Eight years of experience in SQL database development stored procedures
• Experience developing and re-architecting applications for containerization.
• Five years of experience with Software Development Life Cycle Process (SDLC)
• Five years of experience with software development Unit Testing, System Testing,
• Functional Testing, User Acceptance Testing, or other development testing experience
• Five years of experience mentoring junior personnel on proper practices and procedures.
• Five years of experience documenting software defects using a bug tracking system and reporting defects to software developers and project managers
• Experience developing applications in classified environments
• Experience migrating and adapting applications for the Cloud.
• Experience with data integrations between systems and across networks.
• Experience with ETL processing of data especially data transformations.
• Experience with XML and JSON data formats.
• Experience troubleshooting and debugging applications in test and production environments.
Clearance Required:
• TS/SCI clearance with SBI and ability to attain SI, TK, G, HCS, and NATO Secret clearance
Minimum Education:
• High School Diploma
Minimum Years of Experience:
• 10 years
Preferred Qualifications:
• Experience with AI data modeling and/or data science application support.
• Experience with SonarQube and applying Security STIGs.
• Experience deploying applications in different environments.
• AI literacy
#javelin
Compensation Details:
180-190K
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
01/06/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .
Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Senior .NET/C# Software Developer to join our team of passionate individuals in Ft. Belvoir, VA. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission.
INSCOM executes mission command of operational intelligence forces; conducts worldwide multidiscipline and all source intelligence operations; delivers advanced skills training, linguist support, specialized quick reaction capabilities, intelligence related logistics, and communications in support of Army, Joint, and Coalition command and the National Intelligence Community. You will be part of a team that provides comprehensive automation/information technology support to the Data Capabilities Division (DCD) worldwide intelligence dissemination, data management, and knowledge management missions.
Work Schedule:
• Monday-Friday, 8 hours/day, Core hours: 0900-1500
Essential Responsibilities:
• Provide application development for a Microsoft-oriented enterprise environment ("including, but not limited to MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development knowledge) for custom in- house developed web applications.
• Collaborate with peers to review code to ensure that best practices, team norms, and coding standards are followed.
• Provide web development and version control for a Microsoft-oriented enterprise environment using Government provided tools (Microsoft Visual Studio and GitLab).
• Estimate the level of effort required for all design, development, deployment, and testing and provide information to COR.
• Participate in an iterative development team through all facets of to include sprint planning, daily scrum meetings, reviews, and retrospectives.
• Develop documentation to include test plans, end-user documentation, wireframes, mockups, Use Case Diagrams, and flowcharts. All documentation shall be stored in identified Government document repositories.
• Use Azure Dev Ops (ADO) or GitLab for all code changes and version controls.
• Create/update test plans and record the results within the developer documentation.
• Collaborate with the Quality Assurance (QA) team to mitigate all findings identified during testing.
• Build fully deployable packages for development, staging, integration, and production environments and submit deployment requests for approval.
• Use all approved Government provided templates for required documentation and ensure all development related documents are stored in a single document repository, identified by the Government.
• Leverage advanced programming skills to develop and incorporate mandatory fields of the DNI Audit.XML specification in accordance with ICS-500-27 Collection and Sharing of Audit Data.
• Adhere to software development methods including Agile, SCRUM, and Lean in the development of software.
• Provide project status reports to the Government at all stages of the project lifecycle as required.
• Utilize JIRA to record and report bugs to Quality Assurance, project managers, and other stakeholders.
• Ensure SOPs, "How To" guides, testing plans, and accreditation paperwork are complete for each application.
Work Environment, Physical Demands, and Mental Demands:
• Open office work desk within a SCIF.
Minimum Requirements (Knowledge, Skills, and Abilities):
• Ten years of experience in .NET Development (including .NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development).
• Eight years of experience in SQL database development stored procedures
• Experience developing and re-architecting applications for containerization.
• Five years of experience with Software Development Life Cycle Process (SDLC)
• Five years of experience with software development Unit Testing, System Testing,
• Functional Testing, User Acceptance Testing, or other development testing experience
• Five years of experience mentoring junior personnel on proper practices and procedures.
• Five years of experience documenting software defects using a bug tracking system and reporting defects to software developers and project managers
• Experience developing applications in classified environments
• Experience migrating and adapting applications for the Cloud.
• Experience with data integrations between systems and across networks.
• Experience with ETL processing of data especially data transformations.
• Experience with XML and JSON data formats.
• Experience troubleshooting and debugging applications in test and production environments.
Clearance Required:
• TS/SCI clearance with SBI and ability to attain SI, TK, G, HCS, and NATO Secret clearance
Minimum Education:
• High School Diploma
Minimum Years of Experience:
• 10 years
Preferred Qualifications:
• Experience with AI data modeling and/or data science application support.
• Experience with SonarQube and applying Security STIGs.
• Experience deploying applications in different environments.
• AI literacy
#javelin
Compensation Details:
180-190K
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
- Health, dental, and vision insurance
- Paid time off and holidays
- Retirement benefits (including 401(k) matching)
- Educational reimbursement
- Parental leave
- Employee stock purchase plan
- Tax-saving options
- Disability and life insurance
- Pet insurance
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
01/06/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .
group id: 91156626
