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Apex Systems · 6 days ago

Level 2 Systems Engineer (AS/400)

St Louis, MO

Full-time

Onsite

Mid, Senior Level

$50/hr - $59/hr

5+ years exp

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. They are seeking a Level 2 Systems Engineer to join an infrastructure team, responsible for maintaining system availability and supporting various applications and technologies.

Human ResourcesInformation TechnologyRecruiting

H1B Sponsor Likely

Responsibilities

Install, configure, test, and maintain operating systems, application software, and system management tools

Ensure the highest levels of systems and infrastructure availability

Monitor and test application performance for potential bottlenecks, identify solutions, and implement fixes

Maintain security, backup, and redundancy strategies

Write and maintain custom scripts to improve efficiency and reduce manual intervention

Participate in the design of information and operational support systems

Security administration for SSO / SAML / SSL certificates, including coding for certificate/key deployments in production

Support ongoing software and hardware upgrades/maintenance for middleware, OS, and related products (e.g., WebLogic, Tomcat, ESB, AIX)

Support configuration changes and redesign, including instance creation, repurposing, and modifications

Manage internal server account expirations, including coding changes as needed

Collaborate with cross-functional IT teams (platform, networking, Linux, Unix, application performance)

Address security vulnerabilities identified by third-party tools (e.g., Nexpose, penetration testing)

Create and maintain application performance monitoring processes (e.g., Dynatrace, Splunk)

Perform server performance tuning and resolve production support and application stability issues

Qualification

AS400 experienceDatabase administrationMule developmentSystem i (iSeries)/MimixDatabase skillsAWSSplunkCI/CD toolsAgile methodologyJIRAESB technologySecurity administrationIncident responseMonitoringAlertingCross-functional collaboration

Required

Strong commitment to incorporating security into all decisions and daily responsibilities

5+ years of combined software and infrastructure engineering experience

5+ years of AS400 experience

Experience with System i (iSeries)/Mimix

Database skills (System i, Oracle, Maria)

Database administration experience, including file changes, creations, and support

Mule development and support (all development transactions use Mule for flow control)

Preferred

Bachelor's degree in Computer Science, Information Systems, or related field

Experience with Agile methodology and JIRA

Hands-on experience with Splunk

Experience with Jenkins or other CI/CD tools

Experience with AWS

Experience with ESB technology

Benefits

Medical

Dental

Vision

Life

Disability

Other insurance plans

ESPP (employee stock purchase program)

401K program

HSA (Health Savings Account on the HDHP plan)

SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions

Corporate discount savings program

Company

Apex Systems

Glassdoor3.8

Apex Systems, a division of On Assignment, provides organizations with IT staffing solutions to address gaps in their current workforce.

Founded in 1995

Richmond, Virginia, USA

1001-5000 employees

https://www.apexsystems.com

H1B Sponsorship

Apex Systems has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

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Trends of Total Sponsorships

2025 (28)

2024 (21)

2023 (35)

2022 (26)

2021 (29)

2020 (38)