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C3 System Engineer Jobs (NOW HIRING)

L3Harris Technologies

Systems Engineer

Clifton Heights, PA · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

Harris Corporation

Systems Engineer

Camden, NJ · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies

Systems Engineer

Marlton, NJ · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies

Systems Engineer

Holmes, PA · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies

Systems Engineer

Camden, NJ · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies

Systems Engineer

Camden, NJ

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies

Systems Engineer

Blue Bell, PA · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3Harris Technologies Careers

Systems Engineer

Camden, NJ · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

L3 Harris

Systems Engineer

Camden, NJ · On-site

$90K - $140K/yr

The C3 Engineer is responsible for developing integrated communication systems for both internal and external comms. The role will involve analyzing system requirements, performing signal processing ...

Amentum

Software Engineer (Senior) - SOA C3

Norfolk, VA · On-site

$118K - $156K/yr

Software Engineer (Senior) - SOA C3 Location: Norfolk/Portsmouth, VA (Onsite) Employment Type ... for new systems, devise logic procedures, prepare flowcharting, perform coding and test/debug ...

Pae

Software Engineer (Senior) - SOA C3

Norfolk, VA · On-site

$118K - $156K/yr

Software Engineer (Senior) - SOA C3 Location: Norfolk/Portsmouth, VA (Onsite) Employment Type ... for new systems, devise logic procedures, prepare flowcharting, perform coding and test/debug ...

C3 AI

Senior Software Engineer - Generative AI

Redwood City, CA · On-site

$150K - $197K/yr

... C3 AI Platform. * Enable scalable end-to-end machine learning pipelines in a distributed system ... Excellent programming skills in Python; experience with Java and JavaScript preferred. * Thorough ...

Amentum

Software Test Engineer - SOA C3

Norfolk, VA · On-site

$80 - $100/hr

Software Test Engineer (Mid-Level) - SOA C3 Location: Norfolk/Portsmouth, VA (Onsite) Employment ... help evaluate system behavior and maintain traceability throughout the development lifecycle.

Amentum

Software Engineer (Senior) - SOA C3

Norfolk, VA · On-site

$118K - $156K/yr

Software Engineer (Senior) - SOA C3 Location: Norfolk/Portsmouth, VA (Onsite) Employment Type ... for new systems, devise logic procedures, prepare flowcharting, perform coding and test/debug ...

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C3 System Engineer information

See salary details

$53.5K

$127.2K

$167K

How much do c3 system engineer jobs pay per year?

As of Sep 10, 2026, the average yearly pay for c3 system engineer in the United States is $127,215.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,000.00 and $157,000.00 per year, depending on experience, location, and employer.

What is the difference between C3 System Engineer vs C4I Systems Engineer?

AspectC3 System EngineerC4I Systems Engineer
CertificationsCompTIA Security+, Cisco CCNA, vendor-specific certificationsSame as C3, plus additional certifications in C4I systems
Work EnvironmentMilitary, defense, government agencies, communication networksMilitary, defense, command and control systems, C4I networks
Industry UsageDefense, telecommunications, governmentDefense, military operations, command and control centers

The main difference between a C3 System Engineer and a C4I Systems Engineer lies in their scope. C3 System Engineers focus on command, control, and communication systems, while C4I Systems Engineers work on integrated command, control, communications, computers, and intelligence systems. Both roles require similar certifications and work in defense-related environments, but C4I roles typically involve more complex, integrated systems used in military operations.

What is a C3 System Engineer job?

A C3 System Engineer designs, develops, and maintains command, control, and communication systems used in military or defense environments. They often work with complex hardware and software, ensuring system integration, security, and reliability, and may require knowledge of networking, cybersecurity, and system architecture. The role typically involves troubleshooting, system testing, and supporting operational readiness.

What are popular job titles related to C3 System Engineer jobs?

For C3 System Engineer jobs, the most frequently searched job titles are:

Infographic showing various C3 System Engineer job openings in the United States as of September 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 50% In-person, and 50% Remote job distribution, with an average salary of $127,215 per year, or $61.2 per hour.

Lead/Senior Software Engineer, Full-Stack - AI Studio

Redwood City, CA • On-site

C3 AI
Software Development • 501 - 1,000 employees
Learn more about C3 AIexternal

$145K - $219K/yr

Full-time

Re-posted 3 days ago

Job description

C3 AI (NYSE: AI), is the Enterprise AI application software company. C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing, deploying, and operating enterprise AI applications, C3 AI applications, a portfolio of industry-specific SaaS enterprise AI applications that enable the digital transformation of organizations globally, and C3 Generative AI, a suite of domain-specific generative AI offerings for the enterprise. Learn more at: C3 AI
C3 AI is looking for a Lead/Senior Software Engineer, Full-Stack to join the AI Studio team.
C3 AI Studio is the interface to the platform. It provides Developers, Data Scientists, and IT an integrated set of low code and deep code capabilities to build, deploy, operate, and extend Enterprise AI applications at scale. If you're curious about the product, you can check out the demo here.
Responsibilities:
  • Design, develop, and maintain performant and scalable full-stack applications.
  • Build and improve visual tools for application development and data science that enable users to build an end-to-end AI application quickly.
  • Collaborate closely with Product Management, User Interaction Designers, and Front-End/Back-End Engineers.
  • Lead cross-team technical design discussions on the application architecture, UI components, UX, back-end and third-party integration, and testing.
  • Rapidly fix bugs, solve problems, and proactively strive to improve our products and technologies.
  • Manage individual project deliverables and mentor junior team members on industry coding standards and design techniques.
  • Help build a team and cultivate innovation.

Qualifications:
  • Bachelor of Science in Computer Science, Computer Engineering, or related fields.
  • 5+ years of professional software development experience with JavaScript, Java, or other object-oriented programming languages (8+ for lead)
  • Strong hands-on experience and understanding of object-oriented programming, data structures, algorithms, and web application development.
  • Experience working with JavaScript frameworks such as React, Redux, Vue, Backbone, or Angular.
  • Real passion for developing team-oriented solutions to complex engineering problems.
  • Thrive in a dynamic, rapidly changing environment and value end-to-end ownership of projects.
  • Excellent verbal and written communication skills to collaborate multi-functionally and improve scalability.
  • Interest in committing to a fun, friendly, expansive, and intellectually stimulating environment.

Preferred Qualifications:
  • Advanced degree in engineering, sciences, or related field.
  • Experience with Git or other version control software.
  • Knowledge of Agile development methodology.
  • Knowledge of distributed systems, test-driven development, SQL and NoSQL databases, and performance optimization tools.
  • Experience in leading engineering teams and projects.
  • Experience in building scalable web applications.

C3 AI provides excellent benefits, a competitive compensation package and generous equity plan.
California Base Pay Range
$145,000-$219,000 USD
C3 AI is proud to be an Equal Opportunity and Affirmative Action Employer. We do not discriminate on the basis of any legally protected characteristics, including disabled and veteran status.

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