C# Developer

CACI International

San Antonio, USonsite$66k-$134k/yrPosted Jan 21, 2026
Posting intelligenceMay be filled, listed long ago

Skills

c#

About the role

Job ID

328348

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

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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

Compensation

This Software Engineer role pays $66k-$134k/yr. Within typical range for software engineer roles in United States.

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