Senior Software Engineer

Salary: $157000 - 157000 per year Requirements: We require U.S. citizenship and the ability to obtain a Secret security clearance before starting. We are looking for a bachelors degree in electronics or computer engineering, computer science, or an equivalent background. We need at least 5 years of hands-on software development experience tied to modeling and simulation in training systems environments. We expect working knowledge of Microsoft Windows and Unix-based platforms such as Linux. We prefer familiarity with software development and diagnostic tools. A CompTIA Security+ certification is preferred; if you do not already hold it, it must be earned within six months of hire. We value experience with Assembly, C, C++, Microsoft .NET languages such as C# or VB, and Java. Experience with Windows 7/10, Windows Server 2008 R2 and 2012 R2, and Red Hat Enterprise Linux 5/6/7 is desired. We also seek applicants with 4+ years of software development experience. Secret clearance is required. We require the ability to commute to Great Lakes, Illinois. Responsibilities: We design, build, document, test, integrate, and update operating systems and application software for aviation training systems. We develop, troubleshoot, and refine specialized utility programs and applications that support real-time systems. We plan hardware and software integration efforts for aviation training system modifications. We create software solutions by assessing user needs, reviewing system flows, data usage, and work processes, and applying the software development lifecycle. We evaluate operational feasibility by analyzing problems, requirements, solution options, and proposed approaches. We prepare and present solution documentation through flowcharts, layouts, diagrams, charts, code comments, and clear source code. Technologies: C# Hardware Support Java Linux Security Unix Windows ASP.NET Flow More: We are Nimbus Data Systems, Inc. (DKW), a government contractor delivering professional and technical services to agencies in defense, law enforcement, and security. We are hiring a Senior Software Engineer to support our government customer at Naval Air Station Great Lakes in Illinois. This is an onsite, full-time contract role with a competitive salary of up to $135,000 per year. We offer a benefits package that includes dental, health, vision, and life insurance, a flexible spending account, paid time off, and tuition reimbursement. last updated 28 week of 2026