Application Systems Programmer III

Launch Your Career with Cook Systems

Since 1990, Cook Systems —a certified veteran-owned IT consulting firm—has been helping businesses and professionals grow through innovation, integrity, and investment in people. We partner with Fortune 500 enterprises and high-growth companies alike to deliver agile technology solutions, AI-driven talent strategies, and our signature FastTrack program that develops the next generation of tech talent.

At Cook, you’ll find a culture that values excellence, creativity, and accountability. We believe in opportunity backed by trust—and in building careers that last. Check out what our team members have to say on our Glassdoor page, and discover why Cook Systems is where meaningful careers take off!

Summary:

The Senior .NET Developer will play a critical role in a dynamic application development team, focusing on the development and maintenance of systems using advanced technologies. This role involves engaging with modern development tools such as Visual Studio 2019, TFS, DevOps, ASP.Net MVC, and more, and requires a commitment to delivering high-quality software solutions in a fast-paced environment.

Responsibilities:

• Design, develop, and maintain web-based applications utilizing best industry practices.


• Work with the latest development technologies including Visual Studio, ASP.Net MVC, and JavaScript frameworks.


• Collaborate with cross-functional teams to determine technology solutions and execute development tasks.


• Lead application development projects, providing technical guidance and oversight.


• Develop and execute unit and system tests to ensure software quality.


• Engage in agile development processes and contribute to project planning and execution.


• Ensure application security and data protection measures are adhered to.

Required Skills:

• Extensive knowledge of Object-Oriented programming principles and agile application development techniques.


• Proficiency in relational database design and data processing, with skills in Oracle and/or SQL Server.


• Experience with data privacy and protection initiatives.


• Excellent ability to interpret technical specifications, test cases, and software requirements.


• Strong skills in using source code configuration management tools such as Team Foundation Server/DevOps.

Preferred Qualifications:

• Professional experience developing .NET web applications and utilizing relational databases.


• Advanced knowledge of programming using C#, and development techniques such as MVP, MVC, and SPA.


• Experience with front-end technologies including bootstrap, Knockout, WebApi, Angular, Typescript, and JavaScript.


• Bachelor’s degree or higher in a computer-related field.

Job Related Requirements:

• A Level 2 background check and Criminal Justice Information System (CJIS) clearance are mandatory.


• The position is eligible for overtime and may require occasional work outside regular business hours.

General Information:

• The selection process may include a skill assessment and/or oral interview.


• Applicants will undergo a fingerprint-based background investigation, with fingerprints retained for FBI checks.

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Why Work with Us

At Cook Systems, we don’t just offer jobs—we build futures. Our people are at the heart of everything we do, and we’re committed to supporting you with benefits that deliver real security, flexibility, and growth from day one.

• Your Health, Your Way: Choose from two comprehensive medical plans through Blue Cross Blue Shield, with dental and vision coverage included. With access to one of the nation’s largest provider networks, you’ll have quality care wherever life takes you.


• Peace of Mind: Protect what matters most with life, critical illness, and accident insurance through Unum—because your family’s security matters.


• Flexibility for Life: Plan ahead and save with a Flexible Spending Account and Daycare FSA through Navia, helping you manage healthcare and dependent-care expenses your way.


• Extra Protection When You Need It: Our Health Gap Insurance through Sun Life helps cover unexpected costs, so you’re never caught off guard.


• Your Future Starts Now: Build your future with our 401(k) plan through The Standard. You’re eligible after just six months—because long-term success deserves a strong foundation.

At Cook Systems, you’re not just an employee—you’re part of a team that values ideas, celebrates results, and grows together. Here, your impact is visible, your contributions are valued, and your career has room to thrive. Ready to be part of something bigger? Let’s build the future together at Cook Systems.

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