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Senior System Engineer Jobs in Roxana, IL (NOW HIRING)

OBXtek

Senior Engineer-CAMPS Inc I

Scott Air Force Base, IL · On-site

$90 - $130/hr

Responsibilities OBXtek is looking for a Senior System Engineer to support enterprise engineering and analysis efforts. These include providing Data and Engineering support Analysis of Alternatives ...

New

Esri

Sr. System Engineer- ArcGIS

Saint Louis, MO · On-site

$156K - $239K/yr

Broad system administration experience on Windows and/or Linux * Working knowledge of at least one scripting or programming language (such as Python, PowerShell, Javascript, C#) * Familiarity with ...

IC-CAP LLC

System Engineer (Senior) 112-131

Saint Louis, MO · On-site

$101K - $139K/yr

System Engineer (Senior) provides system engineering, systems integration, project management, process and schedule documentation support. The N2W Deployment Systems Engineer will support the ...

IC-CAP LLC

Senior Systems Engineer 112-167

Saint Louis, MO · On-site

$101K - $139K/yr

Guides Mid-level and Junior-level system engineers performing requirements engineering, solutions ... Senior-level working experience in government or industry in relevant work areas including: DoD/IC ...

Leonardo DRS

Senior Systems Engineer

Bridgeton, MO · On-site

$93K - $125K/yr

The Senior Systems Engineer will assist the Business Development department in evaluating new ... Determine system specifications. Support acquisition of hardware and software (or subcontractor ...

Leonardo DRS

Senior Systems Engineer

Bridgeton, MO

$93K - $125K/yr

The Senior Systems Engineer will assist the Business Development department in evaluating new ... Determine system specifications. Support acquisition of hardware and software (or subcontractor ...

Intellectix

Senior Systems Engineer (SAS)

Saint Louis, MO · On-site

$97K - $134K/yr

Senior Systems Engineer (SAS) Location: St. Louis, MO Clearance: TS/SCI Citizenship: US Citizenship ... Working collaboratively with other engineering and system teams to move software through the whole ...

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All JobsSystem Engineer JobsSenior System Engineer JobsSenior System Engineer Jobs in Roxana, IL

Senior System Engineer information

See Roxana, IL salary details

$53.7K

$119.6K

$168.8K

How much do senior system engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for senior system engineer in Roxana, IL is $119,615.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,200.00 and $137,100.00 per year, depending on experience, location, and employer.

What is the difference between Senior System Engineer vs Network Engineer?

AspectSenior System EngineerNetwork Engineer
CredentialsBachelor's in Computer Science or related, certifications like CompTIA Network+, Cisco CCNABachelor's in Computer Science, certifications like Cisco CCNA, CCNP
Work EnvironmentDesigning, implementing, and maintaining IT systems and infrastructureDesigning, deploying, and managing network infrastructure and security
Industry UsageIT, technology, enterprise environmentsTelecommunications, IT, enterprise networks
Common Search/ComparisonSenior System Engineer vs Network Engineer

While both roles require networking knowledge and certifications, Senior System Engineers focus on overall system architecture and integration, whereas Network Engineers specialize in network infrastructure and security. The roles often overlap but serve different core functions within IT teams.

What is a senior system engineer?

Senior System Engineers are experienced IT professionals responsible for designing, implementing, managing, and maintaining complex computer systems and networks within an organization. They play a critical role in ensuring the stability, security, and scalability of IT infrastructure. Their tasks often include troubleshooting system issues, optimizing performance, overseeing upgrades, and mentoring junior engineers. Senior System Engineers typically collaborate with other IT teams and departments to support business objectives and technological needs.

What are some common challenges faced by senior system engineers when managing large-scale IT infrastructure projects?

Senior System Engineers often encounter challenges such as coordinating with cross-functional teams, ensuring system scalability, and maintaining high availability during upgrades or migrations. Managing complex environments requires balancing security, performance, and compliance, all while minimizing downtime. Effective communication and proactive planning are crucial to successfully navigating these challenges and delivering robust solutions that meet organizational needs.

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

To thrive as a Senior System Engineer, you need advanced knowledge of system architecture, network administration, and troubleshooting, often supported by a degree in computer science or a related field and several years of experience. Familiarity with tools like VMware, Linux/Windows servers, cloud platforms (AWS, Azure), and certifications such as CompTIA, Cisco, or Microsoft are commonly expected. Strong problem-solving, project management, and communication skills help you lead teams and handle complex technical challenges. These skills are crucial for ensuring system reliability, security, and efficient operation in dynamic IT environments.

How much money does a senior system engineer make?

A senior system engineer typically earns between $90,000 and $130,000 annually, depending on experience, location, and industry. They often have specialized skills in network infrastructure, scripting, and certifications like Cisco or Microsoft, which can influence salary levels.
What cities near Roxana, IL are hiring for Senior System Engineer jobs? Cities near Roxana, IL with the most Senior System Engineer job openings:
Senior System Engineer jobs near you

Senior Engineer-CAMPS Inc I

OBXtek

Scott Air Force Base, IL • On-site

$90 - $130/hr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 3 days ago

New

Job description

Responsibilities

OBXtek is looking for a Senior System Engineer to support enterprise engineering and analysis efforts. These include providing Data and Engineering support Analysis of Alternatives, Cross Domain, Cloud support, System Interoperability Engineering and Analysis, Model Based System Engineering efforts, etc., for C3BM. The ACAS program requires support for analysis and reviews of software deliverables, CAC modernization, Oracle uplift and Cloud migrations for A3B.

Senior System Engineer shall:

  • Under minimal supervision, provide analysis related to the design, development and integration of hardware, software, man-machine interfaces, and all system level requirements to provide an integrated IT solution.
  • Develop integrated system test requirements, strategies, devices, and system level requirements to provide an integrated IT solution.
  • Apply detailed knowledge of a wide range of IA concepts, practices, and procedures to ensure the secure integration and operation of IT systems.
  • Conduct security assessments and security consulting services, and analyze information security requirements.
  • Be familiar with analyzing and preparing documentation in support of implementing the Risk Management Framework (RMF) security posture.
Qualifications

Senior level experience in IT Solution Development to support the responsibilities above.

Secret Clearance required.

Security ClearanceSecretCompany Information

Headquartered in McLean, Virginia and founded in 2009, OBXtek is a fast-growing leader in the government contracting field. Our mission is Our People Our Reputation. Our people are trained professionals who enhance our customers’ knowledge and innovation using technology, collaboration, and education.

We offer a robust suite of benefits including comprehensive medical, dental and vision plans, Flexible Spending Accounts, matching 401K, paid time off, tuition reimbursement plans and much more.

As a prime contractor for 93% of our current work, OBXtek pairs lessons learned across disciplines with industry standard quality practices such as CMMI-Dev Level III, ITIL, 6Sigma, PMI, and ISO. Our rapid growth has been recognized by INC500, the Washington Business Journal, and Washington Technology magazine.

OBXtek is an Equal Opportunity Employer and does not discriminate based on race, color, religion, sex, age, national origin, gender identity, disability, veteran status, sexual orientation or any other classification protected by federal, state or local law.

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