.NET Software Developer, Senior

CACI International Inc.; Springfield (VA); On-site; USD 87,000 - 182,000; Full time

Job summary

CACI International Inc. is seeking a Senior .NET Software Developer to design, develop, test, and sustain enterprise applications supporting government operations.

The role emphasizes security, scalability, and collaboration with stakeholders across government and contractor teams. Responsibilities include leading development efforts, performing code reviews, and mentoring junior developers while aligning with Agile practices and DevSecOps principles.

Qualifications

• Active TS/SCI clearance required for access to government systems.
• Minimum 15 years of experience in software development for government/DoD programs.
• Experience with .NET technologies and modern software development methodologies.

Responsibilities

• Design, develop, test, and sustain enterprise .NET applications.
• Lead technical work and brief senior Government and program leadership.
• Collaborate with stakeholders to gather requirements and ensure security compliance.
• Mentor junior developers and participate in Agile ceremonies.
• Support system integration, deployments, and documentation.

Skills

Active TS/SCI Clearance

15+ years experience

Microsoft .NET

Azure DevOps

Git

SQL Server

Education

Bachelor's degree in CS/SE/IT

Tools

Azure DevOps

Git

SQL Server

Job description

Job Title: .NET Software Developer, SeniorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * *The Opportunity:CACI is seeking an experienced .NET Software Developer, Senior, to support logistics operations across the Indo-Pacific. The .NET Software Developer, Senior serves as CACI's senior software development professional responsible for designing, developing, integrating, testing, and sustaining enterprise software applications that support logistics , mission support, operational planning, and business operations. Reporting directly to the Program Manager, this position provides technical leadership in developing secure, scalable, and reliable software solutions that enhance mission execution and operational effectiveness.The .NET Software Developer, Senior works closely with Government stakeholders, software engineers, system architects, database administrators, cybersecurity personnel, and mission partners to develop modern applications, automate business processes, and integrate enterprise systems. This position supports the full software development lifecycle and ensures that applications meet customer requirements, security standards, and operational objectives .Responsibilities:Design, develop, test, and maintain enterprise .NET software applications supporting Government operations.Develop web-based, desktop, and API-driven applications using modern .NET technologies.Collaborate with Government stakeholders to gather, analyze, and refine software requirements.Integrate applications with enterprise databases, cloud services, and third-party systems.Develop secure, scalable, and maintainable software solutions following industry best practices.Perform software testing, debugging, troubleshooting, and root cause analysis.Participate in Agile software development activities, including sprint planning, code reviews, and demonstrations.Develop and maintain technical documentation, software design specifications, and user guides.Coordinate with cybersecurity personnel to ensure applications comply with Government security requirements.Optimize application performance, reliability, and scalability through continuous improvement.Support software deployments, upgrades, configuration management, and version control.Mentor junior developers and promote software engineering best practices.Research and implement emerging technologies that improve application capabilities and operational efficiency.Support system integration, user acceptance testing, and operational transition activities.Foster continuous improvement through automation, innovation, and software modernization initiatives.Qualifications:Required:Active TS/SCI ClearanceMinimum 15 years of experience supporting software development, application engineering, or enterprise systems development for Government or Department of Defense programs.Experience supporting Department of Defense, Joint, Combatant Command, Service Component, or Special Operations organizations.Experience developing enterprise applications using Microsoft .NET technologies and modern software development methodologies.Demonstrated ability to lead development efforts and brief senior Government and program leadership on technical solutions and application capabilities.DesiredBachelor’s degree in computer science , Software Engineering, Information Technology, Computer Engineering, or a related field.Experience developing applications using C#, ASP.NET Core, .NET Framework/.NET, Blazor, Entity Framework, SQL Server, RESTful APIs, Azure DevOps, Git, and Microsoft Azure.Experience supporting Agile, DevSecOps , CI/CD pipelines, cloud-native application development, and enterprise system integration.Professional certifications such as Microsoft Certified: Azure Developer Associate, Azure Solutions Architect, Security+, Certified Scrum Developer (CSD), or equivalent software development certifications are preferred.-What You Can Expect: A culture of integrity.At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.An environment of trust.CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.A focus on continuous growth.Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.Pay Range :There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.The proposed salary range for this position is:$86,600 - $181,800CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.