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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer/Software Engineer - **Company:** TekSynap Corporation - **Location:** Fairfax County, VA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), .NET Framework, Extensible HyperText Markup Language (XHTML), Artificial Intelligence, Client Server Models, Custom Software, Data Conversion, Extract Transform Load (ETL), Internet Information Services (IIS), Mobile Application Software, Machine Learning, Microsoft Visual Studio, Microsoft SQL Server, Oracle (Applications), Performance Tuning, Systems Development Life Cycle, Oracle Apex, Microsoft SharePoint, Software Engineering, Software Requirements Analysis, SQL Databases, SQL Server Reporting Services, Extensible Markup Language (XML), Extensible Stylesheet Language Transformations (XSLT), Data Processing, Marklogic, Git - **Published:** June 23, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8989342/application-developersoftware-engineer ## About the Role * 4-6 years of experience * ASP.NET, C#, Python, Java, C/C++, CSS/JavaScript, SQL & SQL reporting, SQL Server, Visual Studio, GIT, CI/CS/CD, Artificial Intelligence (AI)/Machine Learning (ML), SharePoint, MS Power Platform, Microsoft Internet Information Server (IIS), MarkLogic, ORACLE, Oracle APEX * All work must comply with all relevant Fairfax County standards. This work may require knowledge of HTML, XHTML, XML, XSLT, .NET Framework, Visual Studio, JavaScript * Demonstrated experience supporting government agencies, customers, or contracts within federal environments. This includes the Intelligence Community (IC), Department of Defense (DoD), Federal Civil agencies, and military organizations. Prior experience supporting the same or similar contract, with an in-depth understanding of the customer environment, requirements, and operational landscape, is highly desirable. Clearance * U.S. Citizenship required; background check required., The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms; talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus. ## Description * Software engineer should have strong technical experience in all phases of the software development life-cycle (SDLC) with a demonstrated technical expertise in one or more areas of state-of-the-art software development technology. Provides activities related to enterprise full life-cycle software development projects. Able to develop detailed functional and technical requirements for client server and web software applications and conduct detailed analyses and module-level specification development of software requirements. Must be able to define and implement high performance and highly scalable product/application architectures, and able to lead integration activities for operational, tactical, and strategic systems. Perform complex programming and analysis for web and mobile applications and ETL processing; define requirements; write program specifications; design, code, test and debug programming assignments, document programs. May supervise the efforts of other developers in major system development projects; determine and analyze functional requirements; determine proposed solutions information processing requirements; and optimize system performance. Work task could include total custom development, customization as needed for COTS, development of reports, data conversion and support of legacy applications. ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Grappling With Clunky Old Software? Start by Understanding What’s Inside!](https://www.wearedevelopers.com/videos/1189-grappling-with-clunky-old-software-start-by-understanding-what-s-inside) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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