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Systems Engineer Iii Jobs in California (NOW HIRING)

Saalex

Systems Engineer III

San Diego, CA · On-site

$110K - $180K/yr

Saalex Corporation is seeking multiple Systems Engineer III in Tidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range ...

Saalex Corp.

Systems Engineer III

San Diego, CA · On-site

$110 - $180/hr

Saalex Corporation is seeking multiple Systems Engineer III in Tidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range ...

Saalex

Systems Engineer III

San Diego, CA · On-site

$110K - $180K/yr

Saalex Corporation is seeking multiple Systems Engineer III in Tidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range ...

NorthBay Health

Systems Engineer III

Fairfield, CA · On-site

The Systems Engineer III will provide technical leadership to the Systems Engineering team as well as expert level implementation, support and maintenance for all aspects of the enterprise IT ...

NorthBay Health

Systems Engineer III

Fairfield, CA · On-site

$72.58 - $88.24/hr

The Systems Engineer III will provide technical leadership to the Systems Engineering team as well as expert level implementation, support and maintenance for all aspects of the enterprise IT ...

Chipton Ross

Systems Engineer 3

Del Rey, CA · On-site

$82.60/hr

Job #218238 Chipton-Ross is seeking a Systems Engineer 3 for an onsite contract opening in Canoga Park, CA. REQUIREMENTS At least 4 years of relevant industry experience in systems engineering ...

Prolim Global

SEA Systems Engineer 3

Northridge, CA · On-site

SEA Systems Engineer 3 Company: Northrop Grumman Corporation Location: Northridge, CA (Onsite) Job Type: Contract (Full-Time) Duration: July 31, 2026 - January 6, 2027 Customer: U.S. Navy Security ...

Chipton Ross

Systems Engineer 3

Del Rey, CA · On-site

$143.31/hr

Job #219449 Chipton-Ross is seeking multiple Systems Engineer 3's for a contract opportunity in Woodland Hills, CA. BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) * Principal System Engineer:

Chipton Ross

Systems Engineer 3

Del Rey, CA · On-site

$86.77/hr

Job #219190 Chipton-Ross is seeking 6 Systems Engineer 3's for a contract opportunity in Oklahoma City, OK. BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) Able to provide organization to issues.

SCS Global Services

Systems Engineer III

Emeryville, CA · On-site

$120K - $165K/yr

Job Overview The Systems Engineer III is a senior technical contributor responsible for the engineering, architecture, implementation, and support for the day-to-day operation, security, and ...

New

Chipton Ross

Systems Engineer 3

Del Rey, CA · On-site

$86.77/hr

Job #219100 Chipton-Ross is seeking a Systems Engineer (Level 3) for a contract opportunity in Berkeley, MO. BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) * STEM BS and 5+ years minimum ...

XSITE LLC

Model Based Systems Engineer III

San Diego, CA · On-site

$147K - $195K/yr

Model Based Systems Engineer III Level: Senior Location: San Diego, CA Telework: Hybrid remote/onsite, with typical set schedule at Government facility Travel: Salary: $147,000-$195,000 XSITE LLC is ...

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All JobsSystems Engineer Iii JobsSystems Engineer Iii Jobs in California

Systems Engineer Iii information

See California salary details

$52.8K

$125.5K

$164.8K

How much do systems engineer iii jobs pay per year?

As of Sep 6, 2026, the average yearly pay for systems engineer iii in California is $125,549.00, according to ZipRecruiter salary data. Most workers in this role earn between $96,700.00 and $154,900.00 per year, depending on experience, location, and employer.

What is a systems engineer III?

A Systems Engineer III is an experienced professional responsible for designing, implementing, and maintaining complex systems within an organization. They typically work with both hardware and software to ensure that all system components function together seamlessly. This role often involves troubleshooting, optimizing system performance, and leading projects or mentoring junior engineers. Systems Engineer III positions usually require several years of experience and a strong understanding of systems architecture, integration, and security.

What are the key skills and qualifications needed to thrive as a systems engineer III, and why are they important?

To thrive as a Systems Engineer III, you need advanced knowledge of systems architecture, troubleshooting, and integration, usually supported by a degree in computer science or a related field and several years of relevant experience. Familiarity with tools such as VMware, Linux/Windows server environments, scripting languages (e.g., Python, PowerShell), and certifications like CompTIA Security+, Microsoft Certified: Azure Solutions Architect, or Cisco CCNP are typically required. Strong problem-solving, analytical thinking, and effective communication skills help you collaborate across teams and address complex technical challenges. These skills are essential for designing, maintaining, and optimizing reliable IT systems that support organizational goals.

How does a systems engineer III typically collaborate with other IT teams and departments?

As a Systems Engineer III, you will frequently collaborate with network administrators, software developers, and cybersecurity teams to ensure seamless integration and optimal performance of IT systems. You may participate in cross-functional meetings to troubleshoot complex issues, coordinate system upgrades, and develop solutions that align with organizational goals. Effective communication and teamwork are essential, as you’ll often serve as a technical liaison between different departments, translating requirements and ensuring that system changes do not disrupt business operations.

Are systems engineers in high demand?

Systems Engineers III are in high demand due to the increasing reliance on complex IT infrastructure, cybersecurity, and cloud computing. Employers seek professionals with strong technical skills, certifications, and experience in designing and maintaining large-scale systems, making this a competitive and growing field.
Systems Engineer Iii jobs near you
Infographic showing various Systems Engineer Iii job openings in California as of August 2026, with employment types broken down into 80% Full Time, 14% Part Time, 5% Contract, and 1% Nights. Highlights an 86% Physical, 2% Hybrid, and 12% Remote job distribution, with an average salary of $125,549 per year, or $60.4 per hour.

Systems Engineer III

Saalex

San Diego, CA • On-site

$110K - $180K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 days ago

Job description

Saalex Corporation is seeking multiple Systems Engineer III in Tidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business Intelligence Services and Information Technology Services. Founded in 1999 by Travis Mack, Saalex Solutions is a Service Disabled Veteran-Owned and Operated business with prime and subcontract expertise serving the Navy, Army, Air Force, NASA, corporate clients, and local governments. Saalex offers competitive compensation, career development, flexible work schedules and excellent benefits.

Position Type: Contingent on Contract Award.

Salary: $110k-$180k (depending on experience)

The Systems Engineer III supports the Navy by designing, engineering, and integrating enterprise IT systems and architectures across global Live Virtual Constructive (LVC) environments. 

Essential Functions:

  • Design and implement enterprise system architectures. 
  • Lead system integration and engineering efforts. 
  • Develop system specifications and engineering artifacts. 
  • Support RMF/ATO processes. 
  • Provide technical leadership. 
  • Other duties as assigned or required.

Requirements

Required:

  • 5–7 years of experience in relevant field. 
  • Bachelor’s degree in IT, Engineering, or related field (or equivalent experience). 
  • Experience supporting enterprise IT environments. 
  • Knowledge of RMF, STIGs, and DoD environments. 

Desired:

  • Experience supporting DoD or Navy programs. 
  • Familiarity with virtualization, cloud, or enterprise systems. 
  • Relevant certifications (Security+, RHCSA, AWS, etc.).

Additional Qualifications:

  • Strong analytical and problem-solving skills. 
  • Ability to work in complex environments. 

Security Clearance:

  • Must be eligible to obtain a Secret, Top Secret, or TS/SCI clearance. Active clearances preferred. Requirements to obtain a clearance include US Citizenship, security investigation, etc.

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Short Term & Long Term Disability
  • Training & Development
  • Wellness Resources
  • Stock Option Plan