Senior Software Developer III

MetroStar

. Design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer .

Posted 9/30/2026full-timeDistrict of Columbia • United StatesSenior💰 $184,000 - $225,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in secure software development, including proficiency in C#, .NET, and front-end technologies such as TypeScript and Angular. Capable of delivering mission-critical solutions while maintaining compliance with DoD standards and fostering customer trust through effective communication.

Highest-signal resume keywords

C# ProgrammingASP.NET DevelopmentCI/CD Pipeline ManagementAzure Developer Associate CertificationTop Secret Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C#.NET.NET FrameworkEntity FrameworkASP.NETTypeScriptJavaScriptSQL ServerT-SQLDocker

Soft Skills

CollaborationProblem-SolvingCommunication

Tools & Technologies

Azure DevOpsGitLabGitHubWindows ServerPowerShell

Certifications & Qualifications

Security+Azure Developer AssociateAWS Developer Associate

Industry Keywords

Mission-Critical SystemsFederal GovernmentSecure Coding PracticesAgile MethodologyContinuous Integration

Tech Stack

Tools & technologies

AngularASP.NETAWSAzureDockerEntity FrameworkJavaScriptNode.jsReactSQLTypeScript.NET

About the role

Key responsibilities & impact

Design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer
Troubleshoot and resolve production issues in a timely and effective manner
Work collaboratively to deliver technical solutions for mission-critical federal government systems
Support operations and maintenance, and design, develop, and modernize custom enterprise applications
Apply secure coding practices throughout all phases of development
Participate in code reviews and Agile ceremonies, including planning, stand-ups, and retrospectives
Support and contribute to CI/CD pipelines and automated deployments
Communicate technical decisions and solutions to technical and non-technical stakeholders
Establish and maintain customer trust and confidence through technical expertise and professionalism
Use creativity and innovation to deliver solutions meeting customer and mission needs
Support continuity of operations as essential personnel during government shutdowns, emergencies, or other critical situations

Requirements

What you’ll need

Active Top Secret with current or previously held SCI access
Bachelor’s degree in Computer Science or Software Engineering preferred; relevant experience may substitute
Certification meeting DoD 8140 (e.g., Security+ or higher)
Required certification: Azure Developer Associate, AWS Developer Associate, or recent/relevant software development certification
10+ years of professional software development experience building, testing, and maintaining enterprise applications in mission-critical environments
Expertise in C#, .NET, .NET Framework, Entity Framework, and ASP.NET, including WebForms, MVC, and REST APIs
Front-end experience with TypeScript, JavaScript, HTML, CSS, Node.js, and Angular and/or React
Back-end experience with database development and administration, including SQL Server and T-SQL
Experience with source code management tools such as Azure DevOps, GitLab, or GitHub
Experience with CI/CD pipelines and Docker containerization
Strong understanding of Windows Server, PowerShell scripting, IIS hosting, Kerberos, and OIDC authentication
Ability to contribute immediately with minimal ramp-up in a dynamic, mission-critical environment
Must verify identity and eligibility to work in the United States upon hire

Benefits

Comp & perks

Performance-based bonuses
Company-paid training and/or certifications
Referral bonuses
Health, dental, and vision insurance
401(k) retirement plan with company match
Paid time off (PTO) and holidays
Parental Leave and dependent care
Flexible work arrangements
Professional development opportunities
Employee assistance and wellness programs
Additional incentives based on individual and company performance