Senior Systems Engineer
TekSynap•Washington, DC
•Onsite
About The Position
We are seeking a Senior Systems Engineer to support the enhancement and sustainment of a mission-critical, web-based application used by law enforcement and intelligence analysts. This is a hands-on full-stack development role focused on maintaining and improving an existing application built on a Microsoft technology stack, including C#, SharePoint Server, and SQL Server, within a secure, on-premises environment.
Requirements
- Strong experience in full-stack development using C#/.NET and Visual Studio
- Experience working with SharePoint Server (on-premise) and customizing SharePoint-based applications
- Proficiency in SQL Server, including database design, querying, and performance optimization
- Experience developing and maintaining web-based applications in a secure, enterprise environment
- Ability to troubleshoot complex application and integration issues
- Familiarity with Agile methodologies and development tools (e.g., Jira)
- Experience supporting both development and maintenance (O&M) activities
- Understanding of secure coding practices and working within regulated/government environments
- Bachelor’s degree or equivalent and up to eight (8) years of relevant experience.
- Top Secret clearance.
Responsibilities
- Design, develop, and maintain features for a web-based application using C# and the .NET framework
- Enhance and support applications built on SharePoint Server and SQL Server platforms
- Develop and maintain backend services, APIs, and database integrations
- Support frontend functionality to improve usability and performance for analyst-facing tools
- Troubleshoot and resolve application defects, performance issues, and system integration challenges
- Perform system testing, debugging, and validation of new and existing features
- Support ongoing operations and maintenance (O&M), including bug fixes and minor enhancements
- Participate in Agile development processes, including sprint planning, backlog grooming, and iterative delivery
- Ensure compliance with secure development practices and government cybersecurity standards
Benefits
- health
- dental
- vision
- 401K
- life insurance
- short-term and long-term disability plans
- vacation time
- holidays
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
Upload and Match Resume
What This Job Offers
Job Type
Full-time
Career Level
Senior
Number of Employees
251-500 employees
