Specialist, Systems Engineer

Job Title: Specialist, Systems Engineering

Job Type: Exempt

Job Location: Simi Valley, CA

(This position is 100% onsite)

Business Unit: Datron

Schedule:9/80: Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off.

About Fisica Inc.

Fisica, Inc. is a premier manufacturer of advanced defense products, specializing in the design and production of airborne and ground-based antennas, as well as cutting-edge electromagnetic systems and simulators. Headquartered in San Leandro, California, with additional operations in Simi Valley, Fisica plays a vital role as a trusted partner to leading defense primes and the U.S. Department of Defense.

Our company operates as - ATI, Randtron, Datron and Space Vector—each bringing deep expertise and innovation to the defense sector. Led by a seasoned management team, Fisica is committed to excellence in engineering, manufacturing, and mission-critical solutions that enhance national security.

At Fisica, we foster a strong, collaborative work culture that values individual contributions and empowers our employees. Our commitment to innovation, integrity, and teamwork makes us a leader in the defense industry and an exceptional place to build a career.

Position Summary

We are seeking a highly motivated Systems Engineer to lead and support the development, integration, and sustainment of ground-based systems for satellite and space communications. You will play a critical role in the architecture, design, implementation, and operations of ground station infrastructure supporting mission-critical applications.

Key Responsibilities

• Define and manage system requirements and interfaces for ground station infrastructure, including antennas, RF systems, modems, and network elements.
• Support the full systems engineering lifecycle, including CONOPS development, design trade studies, integration, verification, and validation.
• Develop interface control documents (ICDs), systems specifications, and test plans.
• Coordinate with hardware and software engineers, program management, customers, and subcontractors.
• Troubleshoot system-level issues and support root cause analysis during integration and operations.
• Assist in performing link budget analysis, RF chain evaluations, and data flow assessments.
• Contribute to mission planning and ground system automation improvements.
• Ensure ground systems meet operational, performance, reliability, and cybersecurity requirements.
• Support program milestones, design reviews (SRR, PDR, CDR), and delivery schedules.
  
  

Required Qualifications

• Bachelor’s degree in Systems Engineering, Electrical Engineering, Aerospace Engineering, or a related field.
• Experience in systems engineering.
• Understanding of RF systems, SATCOM architecture, TT&C, and/or signal processing.
• Experience with ground station components (e.g., antennas, modems, RF converters, tracking systems).
• Proficiency with system modeling tools (e.g.,SysML, MATLAB, STK).
• Strong knowledge of systems engineering processes
• Excellent written and verbal communication skills.
• Due to specific US Government contract requirements, dual citizenship may not be accepted. This position requires eligibility to obtain and maintain US Government security clearance. Eligibility requires U.S. citizenship.
• Must be able to travel up to 10%.
  
  

Preferred Qualifications

• Master’s degree in a technical field.
• Experience with DoD or NASA ground systems and standards (e.g., CCSDS, MIL-STD).
• Experience in systems engineering for ground-based communication or space systems.
• Familiarity with cloud-based ground systems (e.g., AWS Ground Station).
• Active security clearance or ability to obtain one.
  
  

Why Join Fisica, Inc.

• Competitive salary and benefits package!
• Generous paid time off.
• 401k with 6% match and vesting is immediate.
• Strong work-life balance.
• Tuition Reimbursement.
• Paid paternal leave.
  
  

In compliance with pay transparency requirements, the salary range for this role is $90,500-$168,500. This is not a guarantee of compensation or salary, as the final offer amount may vary based on factors including but not limited to experience and geographic location. Fisica Inc also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, and schedule type.

EEO Statement

Fisica is proud to be an Equal Opportunity Employer. Fisica is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, military and veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. Fisica maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Fisica is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish .