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Intermediate Software Developer Security Clearance

Job in Rock Island Arsenal, Rock Island County, Illinois, USA
Listing for: Seneca Holdings
Full Time, Part Time position
Listed on 2026-07-02
Job specializations:
  • Software Development
Job Description & How to Apply Below
Position: Intermediate Software Developer with Security Clearance
Location: Rock Island Arsenal

Western Door Federal is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visit the website and follow us on Linked In .

Our team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs. Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan.

One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation.

This position is to provide the Knowledge and Data Management Branch (KDM) of DEVCOM Chemical Biological Center located at Rock Island Arsenal, IL. KDM develops and maintains information systems for several government customers. The majority of the KDM mission supports the Joint Executive Program Office for Chemical, Biological, Radiological, and Nuclear Defense (JPEO-CBRND). This mission directly supports the acquisition programs for CBRN Equipment (CBRNE) for the Warfighter.

KDM requires contractor support using non-personal services contracts to execute their mission of developing accredited information systems. Western Door Federal is seeking a Software Developer - Intermediate at the Rock Island Arsenal, in Rock Island, IL. The objective of this work is to provide on-site support and be responsible for the day-to-day performance of the work/contract. Responsibilities include, but are not limited to:
* Responsible for full-stack software development to include back-end database script artifacts (tables, indexes, functions, stored procedures, etc.), middle tier software code that moves data from databases, applies any business rules and responds to client requests, and client software that covers a wide range of user / data consumer interactions.
* Work under general technical direction, to develop, modify moderately to highly complex web-based applications.
* Design, code, test, debug, document, and maintain full stack web-applications.
* Work in a software development life cycle, apply security and vulnerability best practices, and require little or no instruction and guidance in performing routine tasks.
* Collaborate with other members of the DEVCOM CBC software development team, understand and implement change requests, have superb interpersonal and communication skills.
* Participate in team meetings with the government to improve understanding of the mission, tools, concepts, frameworks, and increase effectiveness in delivering software code.
* Develop and deliver C# and Microsoft .NET Software Code for DEVCOM CBC KDM. Includes proficiency with old and new Microsoft .NET Frameworks (.NET Framework, .NET Core, etc) There is legacy code that needs to be maintained. Some of the legacy code may need to be refactored, which may include re-writing to use newer framework versions.
* Work proficiently in the latest in library code for Microsoft .NET and demonstrate the ability to effectively apply Microsoft and other 3rd party library code written for .NET to delivered software code solutions.
* Develop and deliver Web Based Client Software Code for DEVCOM CBC KDM using HTML, JavaScript, CSS, and associated frameworks such as Bootstrap, jQuery, etc.
* Develop and deliver SQL Database Scripts for DEVCOM CBC KDM; includes developing SQL database scripts to create, remove, update database objects such as tables, indexes, stored procedures, user functions, etc. Scripts not only must account for changing the schema, but also transforming any data because of a schema change. Scripts must be written with database version control in mind. The IS solutions exist in several environments such as developer, test, staging and production on one or more devices.

Therefore, the database in these environments may exist in various versions or states. Any developer or build machine should be able to run scripts from a given database version / state up to the latest.
* Review code based on the code review standards below "PRIOR" to request a code review.…
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