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C# Developer

CACI International

On-site
San Antonio, TX
Full-time
Mid Level
3+ yrs
$66k–$134kPosted 1w ago

Real job — pulled straight from CACI International’s careers page · Verified August 3, 2026 · No reposts.

Job description

CACI International is hiring a C# Developer — a full-time, based in San Antonio, TX role ($66k–$134k). Apply directly on CACI International's careers page below.

C# Developer

Location: San Antonio, TX, US

Department: Software Engineering

Work Location: onsite

Job Title: C# Developer

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

* * *

Bring your C# software development skills to our defense engineering team to support a critical Automated Test Equipment (ATE) development to support Air Force aerospace and defense systems in San Antonio, TX. Work hands-on with hardware and software, to create libraries that will control and automate test and measurement devices. Grow your career in defense contracting while directly supporting aircraft sustainment programs through software development.

Responsibilities:

  • Develop libraries to control test instruments (Digital Multimeters, DAQ systems, Matrix switches) using C# .NET 10

  • Convert libraries written in C to C#

  • Implement methods in C# that perform measurements (voltage, current, resistance, digital patterns) for avionics systems

  • Read manufacturer programmer manuals to implement instrument library functions

  • Verify C# library functionality in a laboratory environment

Qualifications:

Required:

  • B.S. in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering or related field

  • 3 or more years of professional C# programming experience

  • 3 or more years of experience with .NET Framework / .NET Core (experience with modern .NET versions)

  • Strong understanding of C# fundamentals (classes, methods, attributes, JSON serialization)

  • Experience working with JSON file formats

  • Demonstrated problem-solving and debugging skills

  • Strong attention to detail and commitment to code quality

  • Willing and able to obtain a DoD Secret clearance (U.S. Citizenship required)

  • Willing to work onsite in San Antonio, TX

Desired:

  • Air Force, Military or Defense Contracting experience

  • Basic electronics knowledge (voltage, current, resistance, digital I/O concepts)

  • Ability to read and interpret technical documentation and test requirements

  • Background in electronics testing or test engineering

  • Familiarity with test & measurement instruments (DMMs, oscilloscopes, DAQs, etc.)

  • Experience with National Instruments hardware or software

  • Familiarity with Git version control

  • Experience with C development

-

What You Can Expect:

 A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.


Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$65,700 - $134,400

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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Frequently asked questions

What is the salary for C# Developer at CACI International?

The estimated salary range for C# Developer at CACI International is $66,000 - $134,000 USD per year.

What skills are required for C# Developer at CACI International?

The required skills for C# Developer at CACI International include: C#, .NET, JSON, Git.

What is the seniority level for C# Developer at CACI International?

C# Developer at CACI International is a Mid Level level position.

How do I apply for C# Developer at CACI International?

You can view the full description and apply for C# Developer at CACI International on EchoJobs: https://echojobs.io/job/caci-international-c-developer-filrw.