Senior Systems Engineer I – SIGINT San Diego

Epsilon Systems Solutions, Inc; San Diego (CA); On-site; USD 145,000 - 185,000; Full time

Job summary

Epsilon C5I, Inc. in San Diego, CA is seeking a Senior Systems Engineer I with 6+ years of DoD-focused experience to develop system requirements and architectural designs for complex hardware/software networks.

You will collaborate with customers and government stakeholders, contribute to system accreditation on DoD networks, and support testing and integration across teams.

Qualifications

• Bachelor's degree in an Engineering discipline or Industrial Design.
• 6+ years of professional experience.
• Recent DoD networks or related network design, analysis, and troubleshooting experience.
• Knowledge of DoD System Architecture and design documentation.
• Strong interpersonal, telephone etiquette, and professional demeanor.
• Excellent oral and written communication skills.
• Team player with customer service skills.
• Flexible and able to work in a dynamic, team-oriented environment.
• Advanced MS Office (Word, Excel, PowerPoint, Visio).
• Active DoD Top Secret Clearance with SCI Access
• U.S. Citizens per government requirements.

Responsibilities

• Develops technical documentation.
• Develops system Architecture and system design documentation.
• Incorporates new plans, designs and systems into ongoing operations.
• Contributes to the technical direction for the development, engineering, interfacing, integration and testing of all components of complex hardware/software systems to include network analysis, functional allocation, systems requirements reviews, interface standards and system architectures.
• Contributes to the design and execution of unit, system and operational test and evaluation.
• Contributes to successful system accreditation for operation on DoD networks.
• Analyzes system requirements and supports design and development activities.
• Frequently interacts with customers and functional peer groups. Interaction normally requires the ability to gain cooperation of others, oversee production, and maintain work schedules.
• Communicates with other program personnel, government overseers and senior executives.

Skills

Interpersonal skills

Oral and written communication

Team player

Flexible in dynamic environment

MS Office (Word, Excel, PowerPoint,Vis

Education

Bachelor's Degree

Tools

DoD Systems

DoD IA Certification – IAT Level 2

Job description

Senior Systems Engineer I – SIGINT San Diego

Job ID: 2026-430

Date Posted: 2026-11-02T00:00:00

Location: San Diego, California

Minimum Experience: 4 years

Education: Bachelor's Degree

Epsilon C5I, Inc. (http://epsilonsystems.com/c5i), is seeking a Senior Systems Engineer I with 6+ years of experience for work in San Diego, CA. If you have a passion for excellence in engineering and enjoy working on challenging projects in a fast-paced, team-oriented environment – read on!

Summary: Develops system requirement specifications for mechanical, structural or electrical/electronic design by analyzing user's requirements, concept of operations documents and high-level system architectures.

Duties and Responsibilities:

• Develops technical documentation.

• Develops system Architecture and system design documentation.

• Incorporates new plans, designs and systems into ongoing operations.

• Contributes to the technical direction for the development, engineering, interfacing, integration and testing of all components of complex hardware/software systems to include network analysis, functional allocation, systems requirements reviews, interface standards and system architectures.

• Contributes to the design and execution of unit, system and operational test and evaluation.

• Contributes to successful system accreditation for operation on DoD networks.

• Analyzes system requirements and supports design and development activities.

• Frequently interacts with customers and functional peer groups. Interaction normally requires the ability to gain cooperation of others, oversee production, and maintain work schedules.

• Communicates with other program personnel, government overseers and senior executives.

Required Qualifications:

• Bachelor's degree in an Engineering discipline or Industrial Design.

• Six or more (6+) years of professional experience.

• Recent C4I networks or other relevant network experience in the design, integration, analysis, troubleshooting, documenting, programming and operation of computer equipment and networks.

• Knowledge of DoD System Architecture and system design documentation.

• Strong interpersonal skills, telephone etiquette, and professional demeanor.

• Excellent oral and written communication skills.

• Effective team player with highly proficient customer service skills.

• Flexible and able to work in a dynamic, team oriented environment.

• Advanced level user in Microsoft Office application (Word, Excel, and PowerPoint, Visio).

• Candidate must have an active DoD Top Secret Clearance with SCI Access

• Pursuant to the various government contractual requirements, all applicants must be U.S. Citizens.

Preferred Qualifications:

• Experience with DoD Systems.

• DoD 8570-M IA Workforce Certification – IAT Level 2 with certifications in Linux, Microsoft operating systems, Cisco Routers, or VMWARE.

• Experience in supporting security authorization activities in compliance government directives.

Pay Range:

The pay range for this role is $145,000 To $185,000 Annually. This is a reasonable estimate for this role. Individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

ADA Notations:

• Regular communication (hearing/speaking).

• Noise conditions range from very quiet to very noisy.

• Prolonged use of computer (typing/keyboarding).Frequently required to sit for long periods of time, stand, walk, and may occasionally lift and move at least 25 pounds.

• Ability to travel by car, air or other means of transportation, if required.
  

Epsilon Systems Solutions, Inc. is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

Equal employment opportunity, including veterans and individuals with disabilities.