Illumen Group, Inc. · 19 hours ago
Legacy Systems Engineer (AIX / Solaris)
United States
Full-time
Remote
Senior Level
5+ years expIllumen Group, Inc. is seeking a Legacy Systems Engineer to provide specialized support for maintaining, modernizing, and migrating legacy AIX and Solaris-based systems. The role focuses on understanding complex, non-Windows environments and supporting their transition into modern cloud or hybrid infrastructures while ensuring system stability and continuity of operations.
Information Technology & Services
Responsibilities
Support the assessment and migration of AIX and Solaris–based applications and infrastructure from on-premises or legacy hosting environments to modern cloud or hybrid platforms
Perform system and dependency discovery to identify technical risks, constraints, and modernization opportunities
Develop and execute migration and cutover plans, including lift-and-shift and re-platforming approaches where appropriate
Provide hands-on system administration support for AIX and Solaris environments during migration and stabilization phases
Support post-migration stabilization, performance tuning, and configuration hardening
Collaborate with cloud engineers, architects, security, and DevOps teams to ensure legacy systems integrate cleanly into modern environments
Assist with documentation and knowledge transfer, enabling long-term operational support by internal teams
Provide surge or after-hours support during critical migration or cutover windows when required
Qualification
Required
Bachelor's degree in Information Technology, Computer Science, or a related field (or equivalent experience)
5+ years of experience supporting or migrating enterprise systems, with hands-on experience in AIX and/or Solaris environments
Strong understanding of UNIX-based operating systems, virtualization, and enterprise infrastructure
Experience supporting system migrations to cloud or hybrid environments
Proficiency with scripting and automation (e.g., Bash, Python, PowerShell)
Familiarity with Infrastructure as Code concepts and tools (e.g., Terraform, CloudFormation, ARM/Bicep)
Ability to work independently in complex, legacy environments and collaborate effectively across technical teams
Preferred
Experience supporting large-scale modernization or migration initiatives
Familiarity with cloud platforms (Azure, AWS, or GCP)
Relevant cloud or infrastructure certifications
Experience working in regulated or compliance-driven environments
Company
Illumen Group, Inc.
Illumen Group Inc. is an 8(a) federal contractor specializing in Artificial Intelligence, Software Development, DevSecOps, and Cybersecurity.
51-200 employees
H1B Sponsorship
Illumen Group, Inc. 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
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
Funding
Current Stage
Growth StageCompany data provided by crunchbase