UNIX​/Linux Sr. Systems Administrator; Projects

What success looks like in this role Position Title

Senior Systems Engineer – Linux (Project Implementation)

We are seeking a Senior Systems Engineer with deep expertise in UNIX, and Linux platforms to lead and deliver infrastructure and platform implementation projects supporting mission-critical environments.

This role is heavily focused on design, build, migration, modernization, and integration initiatives
, rather than day-to-day operations. The ideal candidate will have a strong background in deploying enterprise systems, leading technical implementations, and driving infrastructure transformation efforts
, particularly in hybrid UNIX/Linux ecosystems.

• Lead and execute end-to-end infrastructure implementations
  , including system builds, migrations, upgrades, and decommissioning activities
• Design and deploy UNIX and Linux environments aligned with enterprise architecture standards
• Drive platform modernization initiatives
  , including OS upgrades, consolidation, and automation adoption
• Implement and integrate application server platforms (e.g., Web Sphere, Web Logic) within high-availability architectures
• Perform environment build-outs for new applications, ensuring scalability, resilience, and performance requirements are met
• Collaborate with cross-functional teams (application, network, storage, security) to support project delivery and system integration
• Develop and execute deployment plans, runbooks, and cutover strategies for production releases
• Automate system provisioning and configuration using Ansible, shell scripting, or similar tools
• Conduct performance validation, tuning, and capacity planning during and after implementation
• Implement security controls, system hardening, and compliance requirements as part of build processes
• Support data center migrations, cloud/hybrid transitions, and platform transformations
• Produce and maintain engineering documentation
  , including build standards, architecture diagrams, and implementation guides
• Provide post-implementation knowledge transfer to operations teams and limited escalation support

• BA/BS degree and 6-8 years’ relevant experience OR equivalent combination of education and experience
• Extensive hands-on experience with UNIX environments
  , with a strong focus on system build and deployment activities
• Proven experience delivering infrastructure or platform implementation projects in enterprise environments
• Strong expertise in Linux (RHEL, CentOS, or equivalent) in build, migration, and integration scenarios
• Experience with application server deployment and configuration (e.g., Web Sphere, Web Logic)
• Demonstrated ability to execute system migrations, upgrades, and large‑scale rollouts
• Experience with automation and Infrastructure as Code practices (Ansible, shell scripting, or similar)
• Solid understanding of system performance tuning, validation, and troubleshooting during project delivery
• Familiarity with enterprise security standards and implementation of hardened builds
• Experience working in regulated or highly controlled enterprise environments
• Knowledge of virtualization platforms (e.g., VMware) and enterprise storage solutions

• Experience with IBM Power Systems and AIX-specific project implementations
• Exposure to cloud or hybrid infrastructure deployments (Azure, AWS)
• Familiarity with CI/CD pipelines and Dev Ops practices
• Experience in data center migrations or workload relocations
• Knowledge of ITIL change and release management processes

• Strong project execution and delivery mindset
• Ability to translate requirements into technical designs and implementation plans
• Excellent troubleshooting and problem-solving during high-impact deployments
• Effective collaboration with multiple engineering and application teams
• Proactive approach to automation and continuous improvement

Unisys offers an outstanding benefits package, featuring unlimited paid time off, a 401(k) match, comprehensive healthcare, HSA matching, ongoing learning opportunities, and more! We’re committed to supporting work-life balance and…