Lead AS400 Systems Engineer

Adaptive Solutions Group; St. Louis (MO); Remote; USD 110,000 - 170,000; Full time

Benefits offered by this job

100% remote

1+ year contract with benefits

Job summary

Adaptive Solutions Group is seeking a Lead Systems Engineer with IBM i expertise for a 100% remote, 1+ year contract in the United States. The role focuses on maintaining IBM i environments while designing and supporting enterprise infrastructure across Windows, Linux, VMware, Hyper-V, Azure, and hybrid clouds.

Required are 5+ years in systems engineering and 3+ years with IBM i, plus a Bachelor's in a related field. The candidate must reside in the Greater St.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent combination of education and experience.
• 5+ years of experience in systems engineering, infrastructure administration, or related IT roles.
• 3+ years of hands-on experience administering and supporting IBM i (iSeries/AS400) environments.
• Experience managing enterprise server environments, including Windows Server and Linux operating systems.
• Experience with virtualization, storage systems, backup/recovery solutions, and networking.
• Knowledge of enterprise security principles, patch management, vulnerability remediation, and access management.
• Experience troubleshooting complex infrastructure issues and performing root cause analysis.
• Experience supporting high-availability, disaster recovery, and business continuity solutions.
• Strong understanding of system monitoring, performance tuning, capacity planning, and operational support.
• Ability to create and maintain technical documentation, system procedures, and support standards.
• Strong problem-solving, analytical, communication, and collaboration skills.
• Ability to provide after-hours support as needed.
• Must be committed to incorporating security into all decisions and daily job responsibilities

Responsibilities

• Administer and optimize IBM i (iSeries/AS400) environments to ensure reliable business operations.
• Design, implement, and support enterprise infrastructure across Windows, Linux, VMware, Hyper-V, Azure, and hybrid clouds.
• Manage system performance, security, upgrades, backups, disaster recovery, and high-availability solutions.
• Create and maintain technical documentation, system procedures, and support standards.
• Provide after-hours support as needed and collaborate with IT teams to handle incidents and changes.
• Support cloud and hybrid infrastructure environments and ongoing modernization efforts.

Skills

Systems engineering

Infrastructure administration

Problem solving

Communication

Security awareness

Documentation

Education

Bachelor's degree in Computer Science / IT / Engineering

Tools

IBM i (iSeries/AS400)

Windows Server

Linux

VMware

Hyper-V

Azure

Networking

Job description

Our top client in the travel/transportation industry is searching for a Lead Systems Engineer with IBM i (iSeries/AS400) expertise to join their team! You will administer and optimize IBM i (iSeries/AS400) environments, manage system performance, security, upgrades, backups, disaster recovery, and high-availability solutions to ensure reliable business operations. You will also design, implement, and support enterprise infrastructure across Windows, Linux, VMware, Hyper-V, Azure, and hybrid cloud environments, including servers, storage, Active Directory, DNS, and DHCP services.

Current experience with IBM i (iSeries/AS400) and a Bachelor's Degree is required for this position.

We are only able to consider candidates currently living in the Greater St. Louis, MO area for this position.

100% remote

1+ year contract with benefits available on contract

*Cannot work C2C or 3rd party referral*

Required:

• Must be presently authorized to work in the U.S. without a requirement for work authorization sponsorship by our company for this position now or in the future
• Must reside in St. Louis, Missouri, or immediate surrounding area
• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent combination of education and experience.
• 5+ years of experience in systems engineering, infrastructure administration, or related IT roles.
• 3+ years of hands‑on experience administering and supporting IBM i (iSeries/AS400) environments.
• Experience managing enterprise server environments, including Windows Server and Linux operating systems.
• Experience with infrastructure technologies such as virtualization, storage systems, backup/recovery solutions, and networking.
• Knowledge of enterprise security principles, patch management, vulnerability remediation, and access management.
• Experience troubleshooting complex infrastructure issues and performing root cause analysis.
• Experience supporting high‑availability, disaster recovery, and business continuity solutions.
• Strong understanding of system monitoring, performance tuning, capacity planning, and operational support.
• Ability to create and maintain technical documentation, system procedures, and support standards.
• Strong problem-solving, analytical, communication, and collaboration skills.
• Ability to provide after‑hours support as needed.
• Must be committed to incorporating security into all decisions and daily job responsibilities

Preferred:

• Experience administering IBM i environments, including security, BRMS, Power Systems, LPARs, performance management, PowerVM, and VIOS.
• Experience supporting cloud and hybrid infrastructure environments (Azure, AWS, and/or GCP).
• Experience with virtualization platforms such as VMware, Hyper‑V, or Nutanix.
• Experience with enterprise storage, backup, and disaster recovery technologies.
• Experience with automation and scripting using PowerShell, Python, Ansible, Bash, or similar tools.
• Working knowledge of networking, identity and access management, and infrastructure security principles.
• Experience operating within ITIL-based service management and change management processes.
• Experience supporting highly available, business‑critical production environments.
• Relevant technical certifications in IBM i, cloud platforms, virtualization, infrastructure, or IT service management