Junior .NET Software Developer with Security Clearance

R-00179356 Description Junior .NET Software Developer Location: Hybrid/onsite in Bethesda, MD – onsite 2-3 days All candidates MUST: Be local to the DC Metro area AND have the ability to obtain and maintain a Public Trust Clearance

We are seeking a Jr. level .NET Software Developer to join our task force supporting the Government Health and Safety Solutions Operation in Bethesda, MD. This role supports mission-critical federal health enterprise systems and provides the opportunity to work on modern, scalable solutions in both on-prem and Azure cloud environments.

Position Overview The selected candidate will research, design, develop, and maintain enterprise applications for our Leidos clients using Microsoft .NET technologies and Azure cloud services. This role involves full lifecycle development in an Agile environment, following secure development practices and modern DevSecOps methodologies.

Responsibilities Design, develop, test, and maintain scalable, secure, and maintainable enterprise applications

Develop .NET applications on Microsoft Azure, including Azure Functions, Web APIs, and Logic Apps

Write clean, defect-free code following software engineering best practices (code reuse, refactoring, CI/CD, secure coding, TDD)

Support software configuration management and understand software component interfaces and dependencies

Build and maintain CI/CD pipelines using GitHub Actions, DevSecOps, and the Azure platform

Collaborate with customers, analysts, architects, DBAs, operations, and testers in an Agile Scrum environment

Contribute proactively to software quality, continuous improvement, and cloud modernization initiatives

Gain and apply working knowledge of Azure AI Foundry and Copilot Studio to support intelligent and AI-enabled application capabilities Key Technical Responsibilities Design and develop applications using ASP.NET MVC, .NET Core, REST, XML

Develop C# applications using Microsoft Visual Studio and ORM frameworks

Build Windows console applications using object-oriented principles

Develop and maintain SQL Server, MySQL database scripts using SQL and T-SQL

Design and develop responsive web user interfaces using HTML5, JavaScript, Bootstrap, jQuery

Design and develop graphs and charts using Telerik UI and third-party components

Design and implement Web Services, WCF, and Web APIs

Implement middleware and application-level security and authentication

Develop reports and dashboards using Power BI and SSRS Required Education Experience & Skills Bachelor’s degree in Computer Science, Information Technology, or a related discipline

2-4 years of relevant professional experience

Strong experience with C#, ASP.NET MVC, .NET Core, ADO.NET, Entity Framework

Experience developing RESTful and SOAP-based web services

Experience developing .NET applications in Microsoft Azure

Hands-on experience with Azure Functions, Web APIs, and Logic Apps

Strong verbal and written communication skills

Experience building enterprise-scale applications using databases, Windows services, and web services

Strong understanding of object-oriented design and C# console application development

Front-end experience with HTML5, CSS3, JavaScript, Bootstrap, jQuery, AJAX

Experience with Telerik UI or similar third-party UI frameworks

Strong experience with SQL Server, T-SQL, stored procedures, and functions

Experience creating reports and dashboards using Power BI and SSRS

Proficiency with Git and modern source control practices

Familiarity with Azure DevSecOps and cloud security best practices

Working knowledge of Azure AI Foundry and Copilot Studio, or willingness to learn

Ability to multitask and thrive in a fast-paced, dynamic environment Preferred Qualifications Experience working in federal or healthcare environments

Microsoft Certified: DevOps Engineer Expert

• Azure certifications are a plus

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting: March 26, 2026 For U.S.

Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range: Pay Range