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

The Timberline Group

Sr Systems Engineer

Saint Louis, MO · On-site +1

$101K - $139K/yr

* Work with operational IT technical leads, senior developers to identify tasks and various needs ... Work with infrastructure and business team and resolve complex system issues and gaps. * Identify ...

Actalent

Senior Systems Engineer

Bridgeton, MO · On-site

$99K - $135K/yr

Generate, decompose, and manage system and subsystem requirements, often starting from partially defined systems or line replaceable units (LRUs). * Reverse-engineer requirements from existing ...

Leonardo DRS

Senior Test Engineer-Systems

Bridgeton, MO · On-site

$93K - $125K/yr

Louis area. Job Summary Leonardo DRS Land Systems is seeking a Senior Test Engineer with expertise in systems level test planning and execution, including the design, development, analysis ...

Leonardo DRS

Senior Test Engineer-Systems

Bridgeton, MO · On-site

$93K - $125K/yr

Louis area. Job Summary Leonardo DRS Land Systems is seeking a Senior Test Engineer with expertise in systems level test planning and execution, including the design, development, analysis ...

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Showing results 21-40

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

Sr Systems Engineer

The Timberline Group

Saint Louis, MO • On-site, Remote

$101K - $139K/yr

Full-time

Re-posted 14 days ago

Job description

  • Work with operational IT technical leads, senior developers to identify tasks and various needs.
  • Work closely with PMO and support implementations.
  • Tier 3 support for Application Management systems in both non-prod and prod environments.
  • Establish new environments, rebuild old and implement new software and services.
  • Configure applications and end-points in collaboration with vendors and business teams.
  • Escalate and collaborate with vendors on issues and work through implementations, advanced configurations and product updates.
  • Work with infrastructure and business team and resolve complex system issues and gaps.
  • Identify and resolve issues utilizing a range of tools, platforms and coding languages.
  • Identify opportunities for application monitoring, recovery and develop necessary tools utilizing product knowledge.
  • Play key contact role on infrastructure projects like SAN replacement, OS patching, hardware updates etc.
  • Participate and support Disaster Recovery, Platform upgrades etc.
  • Plan and manage software patches/updates and work with Business on testing and successful implementation of various systems.
  • Document release steps and updates processes of system components.
  • Review vendor documentation, architecture and customize systems to Business needs.
  • Build and maintain knowledge base of multiple systems for administration.
  • Develops, tests, proofs and maintains software systems, according to established Software Development Methodology, Guidelines and Standards.

Required Experience, Qualifications and Education
  • 3+ years of experience supporting Facets or other similar payor platform software
  • 3+ years of experience delivering/implementing health care operations platform Software
  • 2+ years of experience as a application diagnostician, troubleshooting across multiple platforms (IIS, JBoss, Jetty, Apache, Citrix, SQL, MQ, etc.)
  • 2+ years of experience utilizing scripting to administer backend systems (PowerShell, VBScript, WMI, WinRM, etc.)
  • 1+ years of working with health care software users, translating needs into requirements

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