Senior .NET/C# Software Developer jobs in United States
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Amentum · 1 day ago

Senior .NET/C# Software Developer

Amentum is seeking a Senior .NET/C# Software Developer to join their team focused on Cyber, Security, & Intel projects. This role involves supporting mission-critical projects that impact the Nation’s security and intelligence mission, providing comprehensive automation and IT support for intelligence dissemination, data management, and knowledge management.

Mechanical EngineeringSecurityTechnical Support
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

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

Qualification

.NET DevelopmentC#SQL Database DevelopmentSoftware Development Life CycleUnit TestingCloud MigrationData IntegrationETL ProcessingXMLJSONAgile MethodologiesTroubleshootingAI LiteracyMentoringDocumentation

Required

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
TS/SCI clearance with SBI and ability to attain SI, TK, G, HCS, and NATO Secret clearance
High School Diploma
10 years

Preferred

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

Benefits

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

Company

Amentum is a technology and engineering company for security, defense, and energy.

Funding

Current Stage
Public Company
Total Funding
$321.16M
2025-03-12Post Ipo Secondary· $321.16M
2024-09-27IPO
2020-01-01Private Equity

Leadership Team

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Ajay Nagar
Vice President
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Darren Burton
Chief People Officer
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Company data provided by crunchbase