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UNIX/Linux Sr. Systems Administrator (Projects)
- East Hartford, Connecticut, United States
- East Hartford, Connecticut, United States
Über
Position Summary 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.
Key Responsibilities
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., WebSphere, WebLogic) 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
You will be successful in this role if you have: Required Qualifications
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., WebSphere, WebLogic)
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
Preferred Qualifications
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 DevOps practices
Experience in data center migrations or workload relocations
Knowledge of ITIL change and release management processes
Key Competencies
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
Benefit Highlights 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 investing in your future success.
This role may require access to export-controlled commodities and technology. Therefore, to conform to U.S. export control regulations, applicant should be eligible for any required authorizations from the U.S. Government.
Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.
This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at GlobalRecruiting@unisys.com or alternatively Toll Free: 888-560-1782 (Prompt 4). US job seekers can find more information about Unisys’ EEO commitment here.
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