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# Senior Full Stack Developer (O&M) / Active TS/SCI

- **Company:** Peraton Inc
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $104,000.0 - $166,000.0
- **Contract:** Permanent contract
- **Skills:** Query Performance, ASP.NET, Business Logic, C Sharp (Programming Language), Software Debugging, Elasticsearch, Ext JS, Microsoft SQL Server, Performance Tuning, Reverse Engineering, SQL Stored Procedures, SQL Server Reporting Services, Transact-SQL, TypeScript, .NET Core, System Availability, Backend, Single Page Application, AngularJS, Material UI, Information Technology, ASP.NET Applications, Code Restructuring, Microservices
- **Published:** July 1, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=467c22531135cbf5

## About the Role

Do you have experience in TypeScript?, * Bachelor's degree in Computer Science, Engineering, or equivalent experience.

 * 10+ years of hands-on full-stack engineering experience, with emphasis on O&M or legacy system maintenance.
 * Strong back-end expertise in C#, .NET Core, ASP.NET, and reverse engineering/debugging.
 * Proven experience maintaining and refactoring Angular/TypeScript production codebases.
 * Advanced skills in SQL Server, T-SQL, and performance tuning.
 * U.S. citizenship
 * Active Top Secret clearance with SCI eligbility and eligible to obtain a polygraph.

Preferred, Nice to Have Qualifications:

 * Experience with ElasticSearch for log monitoring and troubleshooting.
 * Ability to maintain and update SQL Server Reporting Services (SSRS) reports.
 * Familiarity with Ext JS for supporting older UI components.

## Description

Peraton is currently hiring a Senior Full Stack Developer (O&M) to support our Operations and Maintenance (O&M) team., * Maintain and optimize existing .NET Core microservices and ASP.NET applications for high availability and performance.

 * Troubleshoot, debug, and upgrade Angular-based Single-Page Applications (SPAs).
 * Manage and tune SQL Server databases, including repairing stored procedures and improving query performance.
 * Analyze legacy application logic to identify and resolve high-priority bugs and production incidents.
 * Apply security patches, performance improvements, and minor feature enhancements based on stakeholder needs.


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