
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# DeveloperJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage 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 - $134,400Get Backend Engineer jobs like this→
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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.