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# Systems Engineer - RHEL

- **Company:** Mercury
- **Location:** New York, NY, United States (Remote available)
- **Experience:** Expert
- **Salary:** $77,000 - $179,000
- **Contract:** Permanent contract
- **Skills:** Proxmox, Apache HTTP Server, Apache Tomcat, Systems Engineering, Bash Shell, Configuration Management, Code Review, Continuous Integration, Linux, Federal Information Processing Standards (FIPS), Github, Kernel-Based Virtual Machine, Linux Security Modules, Logical Volume Manager, Red Hat Enterprise Linux, Ansible, Prometheus, Apache Solr, Virtual Local Area Networks, Virtualization Technology, Software Vulnerability Management, Data Logging, Load Balancing, Grafana, Selinux, Git Flow, Information Technology, Patch Management, Apache Kafka, Terraform, Vmware
- **Published:** November 12, 2026
- **Apply:** https://www.builtincolorado.com/job/sr-systems-engineer-rhel/12194831?handler=ApplyRedirect

## About the Role

* 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 Red Hat Enterprise Linux administration: 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: FIPS/crypto policy, SSH keys and certificates, sudo and least-privilege service accounts, file and directory permissions, and CIS/SOX/PCI controls. Vulnerability remediation tracking (CVE status, needs-restarting) is part of this.
 * Linux storage and performance diagnosis: LVM and filesystems, NFS, iSCSI/FC with multipath, and reading /proc and PSI, I/O, memory and CPU-steal data to work out whether a slow host is its own problem or its hypervisor's.
 * Virtualization and hosts: hands-on Proxmox/KVM (clusters, HA, backup with PBS), ideally with VMware experience and migration between the two.
 * Enterprise networking concepts: bastion/jump hosts, proxies, VIPs and load balancers, bonding, VLANs and MTU.
 * Git-based workflows (GitHub or similar): branching, pull requests, code review, and CI/CD runners and pipelines.
 * Infrastructure as Code and configuration management (Ansible, Terraform or comparable), with repeatable, reviewed, auditable deployment practices.
 * Monitoring and logging for Linux services: Telegraf/Prometheus/Grafana or similar, with an understanding of log retention requirements.
 * Supporting Linux-hosted application and middleware platforms: Apache, Tomcat, Kafka or other messaging, Solr, etc.
 * Writing clear root cause analyses and working incidents end to end, partnering with security, networking, storage and application teams.

## Description

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

 * 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