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Operating System Engineer Jobs in St Louis, MO (NOW HIRING)

Boeing

Senior Systems Integration Engineer

Hazelwood, MO · On-site

$136K - $185K/yr

Senior Systems Integration Engineer Company: Boeing Aerospace Operations The Boeing Company is ... Operating System Installation * Basic Input/Output System (BIOS) definition and Setup * Network ...

Boeing

Senior Systems Integration Engineer

Hazelwood, MO · On-site

$136K - $185K/yr

Senior Systems Integration Engineer Company: Boeing Aerospace Operations The Boeing Company is ... Operating System Installation * Basic Input/Output System (BIOS) definition and Setup * Network ...

Boeing

Senior Systems Integration Engineer

Hazelwood, MO · On-site

$136K - $185K/yr

The Boeing Company is seeking a Senior Systems Integration Engineer to serve as the systems ... Operating System Installation * Basic Input/Output System (BIOS) definition and Setup * Network ...

SAIC

Systems Engineer SME

Scott Air Force Base, IL

Information Technology Subcategory: IT Systems Engineer Schedule: Full-Time Shift: Day Job Travel ... Proficient knowledge of Redhat Enterprise Linux operating system and command line administration

SAIC

Systems Engineer SME

Scott Air Force Base, IL · On-site

Proficient knowledge of Redhat Enterprise Linux operating system and command line administration ... engineering, intelligence, and enterprise information technology markets. SAIC is Redefining ...

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Showing results 21-40

All JobsOperating System Engineer JobsOperating System Engineer Jobs in St. Louis, MO

Operating System Engineer information

See St Louis, MO salary details

$52K

$123.7K

$162.4K

How much do operating system engineer jobs pay per year?

As of Aug 16, 2026, the average yearly pay for operating system engineer in St. Louis, MO is $123,682.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,300.00 and $152,600.00 per year, depending on experience, location, and employer.

What are some common challenges faced by operating system engineers when maintaining system stability in large-scale environments?

Operating System Engineers often encounter challenges such as managing software patching across diverse hardware, ensuring compatibility with legacy applications, and minimizing downtime during critical updates. In large-scale environments, balancing security with performance and reliability can be complex, especially when multiple teams depend on the systems. Effective communication with development, security, and IT operations teams is essential to address these issues proactively and maintain overall system stability.

What does an operating system engineer do?

An Operating System Engineer is responsible for designing, developing, maintaining, and optimizing operating systems that run on computers and servers. They work on the core components that manage hardware resources, enable software applications, and ensure system security and stability. Their duties often include writing system-level code, troubleshooting performance issues, implementing updates, and collaborating with hardware and software teams. Operating System Engineers play a critical role in ensuring that computing environments are efficient, reliable, and secure.

What is the difference between Operating System Engineer vs System Administrator?

AspectOperating System EngineerSystem Administrator
Primary FocusDesigning, developing, and optimizing operating systemsMaintaining, configuring, and supporting existing systems
Skills & CertificationsLinux/Unix, scripting, OS architecture, certifications like RHCE or Linux FoundationSystem management, network setup, troubleshooting, certifications like CompTIA Server+ or Microsoft Certified
Work EnvironmentDevelopment teams, R&D, engineering projectsIT support, data centers, enterprise environments
Industry UsageTech companies, hardware firms, software developmentCorporate IT, government agencies, healthcare, finance

While both roles involve working with operating systems, Operating System Engineers focus on designing and developing OS solutions, whereas System Administrators manage and support existing systems. The roles complement each other but serve different stages of the system lifecycle.

What are the key skills and qualifications needed to thrive as an operating system engineer?

To thrive as an Operating System Engineer, you need a deep understanding of computer science principles, operating system internals, and strong programming skills in languages like C, C++, or Rust, often backed by a relevant degree. Familiarity with kernel development, debugging tools, virtualization platforms, and experience with version control systems (such as Git) are typically required. Problem-solving abilities, attention to detail, and effective communication are soft skills that set top performers apart. These skills ensure the reliability, performance, and security of operating systems, which are foundational to all computing environments.

What are popular job titles related to Operating System Engineer jobs in St. Louis, MO?

For Operating System Engineer jobs in St. Louis, MO, the most frequently searched job titles are:

What job categories do people searching Operating System Engineer jobs in St. Louis, MO look for?

The top searched job categories for Operating System Engineer jobs in St. Louis, MO are:

What cities near St. Louis, MO are hiring for Operating System Engineer jobs?

Cities near St. Louis, MO with the most Operating System Engineer job openings:

Operating System Engineer jobs near you
Infographic showing various Operating System Engineer job openings in St. Louis, MO as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 14% Part Time, and 2% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $123,682 per year, or $59.5 per hour.

System Engineer- Cyber Security Engineering Focus

Esri

Saint Louis, MO • On-site

$120K - $197K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 10 days ago

Esri rating

9.6

Company rating: 9.6 out of 10

Based on 14 frontline employees who took The Breakroom Quiz

7th of 244 rated software companies

Job description

Overview
This position plays a hands-on role securing systems that support critical Defense and Intelligence missions. This position is focused on applying risk management frameworks, engineering security controls, and maintaining system authorizations for cloud and on-prem environments.
You'll work closely with other system engineers, administrators, and program teams to ensure systems are built, assessed, and operated in compliance with DoD and NIST requirements. From managing RMF and ATO packages to driving vulnerability remediation and system hardening, this role is central to maintaining secure, mission-ready systems throughout their lifecycle.
Esri has a Relocation Assistance Program and can provide support with relocating to the St. Louis, MO area for this position.
Responsibilities
  • Apply RMF processes to support system Assessment & Authorization (A&A), including control selection, implementation, assessment, and continuous monitoring
  • Develop, review, and maintain security documentation such as SSPs, POA&Ms, SARs, and ATO artifacts in tools such as XACTA or eMASS
  • Conduct vulnerability assessments and compliance scans (such as ACAS) and track remediation of findings and IAVM requirements
  • Implement and validate security controls aligned with NIST 800-53, CNSSI 1253, and related DoD guidance
  • Support system hardening, patching, and configuration management in compliance with STIGs for Linux, Windows, and network devices
  • Monitor systems for security events and supporting incident response and risk mitigation activities
  • Assess security impacts of system changes and supporting configuration control boards (CCBs)
  • Collaborate with system engineers, administrators, and DevSecOps teams to integrate security throughout the system lifecycle
  • Provide cybersecurity risk input to program leadership, Authorizing Officials (AOs), and stakeholders

Requirements
  • 8+ years of professional experience in a similar position, supporting similar responsibilities
  • Professional experience with RMF, A&A, POA&M, and ATO documentation (XACTA/eMASS)
  • Hands-on experience with vulnerability scanning and compliance tracking (ACAS, IAVM)
  • Experience securing Linux and Windows systems, STIGs, patching, and system hardening
  • Knowledge of NIST 800-series publications and incident response processes
  • DoD 8570 IAT Level II or higher certification (such as Security +, CySA +, CISSP)
  • Strong analytical, communication, and collaborative skills
  • US citizenship with Active or Current (within 2 years of active) Top Secret Security Clearance with SCI eligibility
  • Bachelor's degree in Computer Science, Cybersecurity, Information Technology or STEM related field

Recommended Qualifications
  • Scripting or development experience (Python, Java, React)
  • DevSecOps tools and pipeline experience
  • Experience with Linux (Red Hat/CentOS), databases, web apps, or big data platforms
  • Familiarity with Agile environments and tools (Jira, Confluence)
  • Experience with NIST SP 800-171 and System Security Engineering (SSE)
  • Master's degree in Computer Science, Cybersecurity, Information Technology or STEM related field

#LI-SS2
#LI-Onsite
Total Rewards
Esri's competitive total rewards strategy includes industry-leading health and welfare benefits: medical, dental, vision, basic and supplemental life insurance for employees (and their families), 401(k) and profit-sharing programs, minimum accrual of 80 hours of vacation leave, twelve paid holidays throughout the calendar year, and opportunities for personal and professional growth. Base salary is one component of our total rewards strategy. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
A reasonable estimate of the base salary range is
$120,640-$197,600 USD
The Company
At Esri, diversity is more than just a word on a map. When employees of different experiences, perspectives, backgrounds, and cultures come together, we are more innovative and ultimately a better place to work. We believe in having a diverse workforce that is unified under our mission of creating positive global change. We understand that diversity, equity, and inclusion is not a destination but an ongoing process. We are committed to the continuation of learning, growing, and changing our workplace so every employee can contribute to their life's best work. Our commitment to these principles extends to the global communities we serve by creating positive change with GIS technology. For more information on Esri's Racial Equity and Social Justice initiatives, please visit our website here.
If you don't meet all of the preferred qualifications for this position, we encourage you to still apply!
Esri is an equal opportunity employer (EOE) and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need reasonable accommodation for any part of the employment process, please email askcareers@esri.com and let us know the nature of your request and your contact information. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address.
Esri Privacy Esri takes our responsibility to protect your privacy seriously. We are committed to respecting your privacy by providing transparency in how we acquire and use your information, giving you control of your information and preferences, and holding ourselves to the highest national and international standards, including CCPA and GDPR compliance.

What Esri employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

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About ESRI

Sourced by ZipRecruiter

Our passion for improving quality of life through geography is at the heart of everything we do. Esri's geographic information system (GIS) technology inspires and enables governments, universities, and businesses worldwide to save money, lives, and our environment through a deeper understanding of the changing world around them.

Industry

Scientific research and development services

Company size

1,001 - 5,000 Employees

Headquarters location

Redlands, CA, US

Year founded

1969

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