Sr Systems Engineer - RHEL
About The Position
The Systems Engineer, Senior is a senior-level position that independently designs, implements, administers, and supports critical, high-transactional systems with direct customer, revenue, and/or compliance impact. The role mentors less experienced systems engineers and shares technical expertise. It implements and supports infrastructure for business and IT applications, diagnoses system problems, contributes to compliance activities, and works with application development teams to deliver supporting infrastructure. The position may also lead small-scale IT projects or oversee architecture design and validation. It develops and documents improvements such as scripting, automation, and workflows to improve system efficiency, reliability, scalability, and cost effectiveness. Regular attendance is required on a full-time schedule of at least 8 hours per day and 40 hours per week. The role requires a BS in Computer Science or a related field, or an equivalent combination of education and work experience, and 5 to 7 years of relevant systems engineering experience in a medium or large organization. Preferred experience includes Red Hat Enterprise Linux administration, Bash scripting, Linux security and compliance, storage and performance diagnosis, virtualization, enterprise networking, Git-based workflows, infrastructure as code, monitoring and logging, and support for Linux-hosted application and middleware platforms. Mercury offers a competitive salary and bonus potential. The expected base salary varies by relevant experience, skills, and location. State-specific salary ranges are provided in the posting, with a typical California hiring range of $123,077.70 to $170,941.25. The listed overall pay range is $94,458 to $179,048 per year. Most positions offer flexibility to work from anywhere in the United States; the posting does not specify a work arrangement specifically for this role.
Requirements
- Bachelor of Science in Computer Science or a related field, or an equivalent combination of education and work experience.
- A minimum of 5 to 7 years of prior work experience in systems engineering or a related field in a medium or large organization.
Nice To Haves
- Strong Red Hat Enterprise Linux administration experience, including systemd, package and patch management (rpm/dnf), SELinux, firewalld, cgroups, and journald/auditd troubleshooting.
- Advanced Bash scripting for administration, automation, monitoring, and operational tooling.
- Linux security hardening and compliance experience, including FIPS/crypto policy, SSH keys and certificates, sudo and least-privilege service accounts, file and directory permissions, CIS/SOX/PCI controls, and vulnerability remediation tracking.
- Linux storage and performance diagnosis experience with LVM and filesystems, NFS, iSCSI/FC with multipath, and analysis of /proc, PSI, I/O, memory, and CPU-steal data.
- Hands-on virtualization experience with Proxmox/KVM, including clusters, HA, and backup with PBS; VMware experience and migration between platforms are also desirable.
- Knowledge of enterprise networking concepts, including bastion/jump hosts, proxies, VIPs and load balancers, bonding, VLANs, and MTU.
- Experience with Git-based workflows such as branching, pull requests, code review, and CI/CD runners and pipelines.
- Infrastructure as Code and configuration management experience using Ansible, Terraform, or comparable tools, with repeatable, reviewed, auditable deployment practices.
- Experience with monitoring and logging for Linux services using Telegraf, Prometheus, Grafana, or similar tools, and understanding of log retention requirements.
- Experience supporting Linux-hosted application and middleware platforms such as Apache, Tomcat, Kafka, or Solr.
- Ability to write clear root cause analyses and manage incidents end to end while partnering with security, networking, storage, and application teams.
Responsibilities
- Implement infrastructure systems and components supporting business and IT applications, including hardware, servers, operating systems, packaged software, configuration files, security certificates, database systems, and appliances.
- Independently conduct implementations, including installation, configuration, updates, documentation, and knowledge transfer.
- Analyze, diagnose, isolate, and identify system problems; develop short-term solutions, determine root causes, and create or execute long-term remediation plans.
- Contribute to compliance activities, including reporting, baselines, and verifications.
- Review application non-functional requirements and propose, design, and deliver supporting infrastructure.
- Occasionally manage small-scale IT projects or provide technical leadership for architecture design and validation related to systems delivery.
- Share knowledge with and mentor less experienced staff.
- Promote best practices in capacity, asset and inventory management, configuration, updates, procurement, and vendor engagement.
- Develop, design, test, and document improvements and processes, including scripting, automation, and workflow, to improve system efficiency, reliability, scalability, and cost effectiveness.
- Demonstrate Mercury’s core values of People, Service Excellence, Trustworthiness, Process Simplicity, and Product Value.
- Interact cordially and professionally with customers, vendors, superiors, and peers.
- Maintain regular attendance on a full-time schedule of at least 8 hours per day and 40 hours per week.
Benefits
- Competitive compensation
- Paid time off, including vacation time, sick time, 9 paid Company holidays, and volunteer hours
- Incentive bonus programs, with potential for holiday, referral, and performance-based bonuses
- Medical insurance
- Dental insurance
- Vision insurance
- Life insurance
- Pet insurance
- 401(k) retirement savings plan with company match
- Education assistance
- Professional and personal development opportunities
- Health and wellbeing resources, including free mental wellbeing therapy/coaching sessions and child and eldercare resources
- Flexibility to work from anywhere in the United States for most positions
- Company recognition program
- Promotional opportunities
- Engaging work environment
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What This Job Offers
Job Type
Full-time
Career Level
Senior
