Sr Systems Engineer - RHEL Linux Engineer

Overview

Join an amazing team that is consistently recognized for our achievements and culture, including our most recent Forbes award of being one of America's Best Midsize Employers for 2026!

Position Summary:The Systems Engineer, Senior is a senior level position that works independently to design, implement, administer and support critical, high transactional systems that have direct customer, revenue and /or compliance impact. Mentors and shares technical expertise with less experienced systems engineers.

An in-person interview may be required during the hiring process

State specific pay scales for this role are as follows:

$94,458 to $179,048 (NJ, NY, WA, HI, AK, MD, CT, RI, MA)

$85,871 to $162,771 (NV, OR, AZ, CO, WY, TX, ND, MN, MO, IL, WI, FL, GA, MI, OH, VA, PA, DE, VT, NH, ME)

$77,283 to $146,494 (UT, , MT, NM, SD, NE, KS, OK, IA, AR, LA, MS, AL, TN, KY, IN, SC, NC, WV)

In CA:
Typical hiring range is $ to $

The expected base salary for this position will vary depending on a number of factors, including relevant experience, skills and location.

Essential Job Functions:

• Implements infrastructure systems and components in support of business and IT applications such as hardware, servers, software (such as operating systems, packaged software, configuration files, security certificates, database system etc.), and appliances. Independently conducts implementations that include installation, configuration, update, documentation and knowledge transfer.
• Analyzes, diagnoses, isolates and identifies system problems. Create short term solution to alleviate problem symptoms. Identify root causes and create and/or execute long term remediation plans. Contribute to compliance related activities such as reporting, baseline and verifications.
• Participates in application development process by reviewing non-functional requirements and propose, design, and deliver supporting infrastructure.
• Occasionally manage small scale IT projects or exercise technical leadership to oversee the architecture design and validation where relevant systems delivery is involved.
• Shares knowledge and mentor less experienced staff
• Initiates, promotes, and exemplifies best practices in areas of capacity, asset/inventory, configuration, update, procurement, and vendor engagement.
• Develop, design, test, and document improvement solutions and processes (such as scripting, automation, and workflow) aimed to improve system’s efficiency, reliability, scalability, and cost effectiveness.
• Demonstrates Mercury’s core values of People, Service Excellence, Trustworthiness, Process Simplicity and Product Value
• Cordially and professionally interact with customers, vendors, superiors and peers
• Regular attendance on a full-time schedule of at least 8 hours and 40 hours per week
• Various marginal functions

Education:

• BS Computer Science or a related field or equivalent combination of education and work experience.

Experience:

• Minimum 5 to 7 years of prior working experience in systems engineering or related in a medium or large organization

Preferred Experience:

• Strong knowledge of Linux fundamentals, preferably Red Hat Enterprise Linux, along with container platforms and Kubernetes distributions.
• Advanced Bash and shell scripting skills for systems administration, automation, monitoring, and operational tooling in Linux environments.
• Experience with enterprise networking concepts and technologies, including proxies, virtual IPs (VIPs), bastion hosts, and related connectivity and traffic-management patterns.
• Hands-on experience administering Proxmox and at least one major cloud platform, such as AWS, Google Cloud Platform (GCP), or Microsoft Azure.
• Strong experience with Git Hub, including repository administration, branching strategies, pull requests, code reviews, and CI/CD workflows.
• Experience implementing Git Ops practices to manage infrastructure and application deployments through version-controlled, auditable, and automated processes.
• Extensive experience with Infrastructure as Code (IaC) and configuration-management tools such as Terraform, Cloud Formation, Ansible, or comparable platforms.
• Ability to design and maintain automated deployment pipelines that promote consistency, compliance, and operational efficiency across development, test, and production environments.
• Experience with Dev Ops and automation toolsets such as Jenkins and Power Shell, in addition to Linux-based scripting and automation.
• Deep understanding of infrastructure security, including authentication and authorization, file and directory permissions, IAM roles, SSH keys, certificates, key-management services (KMS), and security or compliance frameworks such as CIS, SOX, and PCI.
• Experience supporting enterprise application and middleware technologies, including Apache, Tomcat, messaging platforms, Spring Boot applications, and related production services.
• Ability to partner effectively with engineering, security, and operations teams to improve platform…