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techroles

C# Software Developer

Gdit Open
USA VA Fort Belvoir Full-time Mid-level Software Engineering

At a glance

Mid-level Software Engineering role at Gdit. USA VA Fort Belvoir · full-time · $123,250–$166,750 base.

SalaryStated by Gdit
$123,250 – $166,750
Base salary for this role, in USD per year, as published in the posting.
RoleSoftware Engineering
SeniorityMid-level
LocationUSA VA Fort Belvoir
EmploymentFull-time
Base pay$123,250–$166,750
PostedNov 2, 2026
Role brief

techroles summary, based on the employer's posting.

What you'll do

  • Build and sustain DIAMONDS and related applications, including C# features using WPF and the PRISM framework
  • Handle software design, integration, testing, releases, documentation, configuration control and user support
  • Create tools for testing, analysis and data management, and keep test software operational
  • Maintain deployed systems during upgrades, limiting disruption at user sites and meeting their needs
  • Prepare lifecycle records for independent verification and join requirements, design and milestone reviews

What you bring

  • At least five years of related experience and a bachelor's degree, with experience or training potentially substituting for the degree
  • You bring C#, Oracle or SQL, and Git experience, including secure coding practices for C# applications
  • You have used Oracle databases, PL/SQL and SQL, plus Azure DevOps and the Git Flow branching approach
  • You can gather requirements from customers, design Windows views from concepts and use static code scanners

Who this fits

This mid-level role suits a developer with application lifecycle experience who can work directly with customers and provide guidance to less-experienced developers. You need an active Secret clearance and U.S. citizenship. The job is based at Fort Belvoir, Virginia, with three on-site days and two off-site days after initial training.

From the employer

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Secret

Clearance Level Must Be Able to Obtain:

Secret

Public Trust/Other Required:

None

Job Family:

Software Engineering

Job Qualifications:

Skills:

Application Development, Quality Assurance (QA), Software Development Methodology

Certifications:

None

Experience:

5 + years of related experience

US Citizenship Required:

Yes

Job Description:

Join GDIT and be a part of the team of men and women that solve some of the world’s most complex technical challenges. The Defense Threat Reduction Agency (DTRA) Defense Stockpile Management Systems (DSMS) support is searching for a C# Software Developer to join their team in Fort. Belvoir, VA. DTRA is the Executive Agent for the Joint Staff Nuclear Weapons Stockpile Manager and is assigned the responsibility for maintaining the DoWs national nuclear weapons stockpile database using the Defense Integration and Management of Nuclear Data Services (DIAMONDS) application.


Software Developers use agile software development methodology to develop and maintain enterprise applications , utilizing an Oracle backend and PL/SQL based database programming; user interface programming, including, but not limited to C#. This requirement provides Agile software development associated with Defense Integration and Management of Nuclear Data Services (DIAMONDS) (and other applications) and frameworks involved in the software release life cycle.


WHAT YOU WILL DO:

  • Provide software development programming, design, integration, documentation, configuration management, testing, release, and user support of all program software and system engineering.
  • Develop and maintain DIAMONDS (and other applications) in accordance with current CMMI for Development level 3 standards.
  • Develop software tools to support testing, analysis, and data management.
  • Provide software maintenance to ensure continued operational capability of the test systems software.
  • Ensure software development plans include standards, configuration management, quality assurance, and life cycle processes.
  • Develop lifecycle artifacts to support Independent Validation and Verification (IV&V) of the software by any GPM/GFR designate outside organization(s)
  • Provide sustainment to currently fielded software and accomplish software redesign as required.
  • Attend and participate in system requirements, design, and milestone review (e.g., BPR, PDR, CDR, etc.)
  • Ensure user sites are continuously operational and fielded maintenance upgrades fully meet user needs.
  • Ensure currently fielded legacy systems remain fully operational while changes are being made to the software, and legacy and updated sites operate as software updates are fielded.
  • Ensure system maintenance (redesign) is accomplished with minimal disruption at user locations.
  • Explore and document potential additional hardware and software test enhancements in anticipation of upgrades to the next release.
  • Performs and provides guidance on all phases of the software development lifecycle.
  • May provide guidance for less-experienced software developers in creating a variety of models and diagrams that show programmers the software code needed for an application.
  • Performs and provides guidance on software updates, refinement, testing, and debugging to meet business needs.
  • Provides relevant analysis for reports on software project specifications, activities, or status.
  • Thoroughly documents the software or system process for future maintenance and updates.
  • Development of new features using WPF with PRISM framework.

WHAT YOU WILL NEED TO SUCCEED:

  • BS degree and 5+ years of experience; additional years of work experience, certifications, and training may be considered in lieu of degree.
  • Required: C#, Oracle/SQL, Git source control experience.
  • Experience applying secure defensive coding practices in C# application development.
  • Experience with Oracle database, PL/SQL, and SQL to interact with application.
  • Experience with Azure DevOps and Git Flow branching model and source control.
  • Experience with both direct interactions with customers to gather requirements and design windows and views based on concept designs.
  • Experience using Fortify, Sonar Lint, or other static code analysis scanners.
  • Preferred: work experience with Agile methodologies
  • Preferred: DOW 8570 IAT Level II certificate (i.e., CompTIA Security + cert)
  • Must have an active/current DoW Secret security clearance
  • Must be able to work on site at Fort Belvoir VA but after initial training, candidates can work 3 days on site and 2 days off site.

WHAT GDIT CAN OFFER:

  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from and apply to solve real world problems
  • Rest and recharge with paid vacation and holidays

#GDITPRIORITY

#ARMA

The likely salary range for this position is $123,250 - $166,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

None

Telecommuting Options:

Onsite

Work Location:

USA VA Fort Belvoir

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.


Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans
Opportunity

Software Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Software Engineering$120k+

Find me work

By the team behind techroles.

Find me work
Opportunity

Software Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind techroles.