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

About this role

## Responsibilities

Peraton is currently hiring a Senior Full Stack Developer (O&M) to support our Operations and Maintenance (O&M) team.

Location: Washington, DC

Role OverviewWe are seeking a Senior Full Stack Developer to support our Operations and Maintenance (O&M) team. In this role, you will sustain, optimize, and enhance a mature enterprise application. Your focus will be on stability, refactoring, troubleshooting, and implementing minor feature enhancements across Angular front ends and .NET Core microservices.

Key Responsibilities:

• 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.

## Qualifications

Minimum Qualifications:

• 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.

## Peraton Overview

Peraton is a next-generation nationa...