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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior System Engineer - Linux - **Company:** MRA Systems, LLC - **Location:** Baltimore, MD, United States - **Experience:** Expert - **Salary:** $145,000.0 - $180,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Azure, Bash Shell, Ubuntu (Operating System), CompTIA Security+, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Python (Programming Language), Lightweight Directory Access Protocols (LDAP), Linux Distribution, Linux Servers, Networking Basics, OpenShift, Public Key Infrastructure, Red Hat Enterprise Linux, Ansible, Prometheus, Security Information and Event Management, Data Streaming, TCP/IP, VMware VSphere, Software Vulnerability Management, Data Storage Management, SUSE Linux, Grafana, HybridCloud, Infrastructure as Code (IaC), Git, Containerization, Gitlab-ci, Kubernetes, Information Technology, Hashicorp, Cloud Migration, CIS Benchmarks, Terraform, Splunk, Docker, Vmware - **Published:** July 4, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=06c729f5f54c8ee8 ## About the Role We are seeking a Senior Infrastructure Engineer (Linux OS) to lead modernization, security, and scalability initiatives across our enterprise environments. Based onsite in Baltimore, MD, this role manages multi-site Linux server infrastructure and plays a pivotal part in hybrid cloud architecture, advanced automation, and security/compliance aligned with aerospace industry standards. The ideal candidate is a hands-on leader who drives resilience, operational efficiency, and future-proofing through code-driven solutions and next-generation technologies., Must have at least a bachelor's degree in Information Technology or a relevant discipline 10+ years of hands-on experience as a Infrastructure Engineer or similar role managing multi-site environments. Expertise with RHEL/AlmaLinux, Ubuntu, and/or SUSE; strong skills in VMware vSphere, Azure, and hybrid architectures. Proficiency in Ansible, Bash, and Python for automation; strong understanding of TCP/IP, DNS, DHCP, LDAP/AD integration, and networking fundamentals. Demonstrated experience with Kubernetes/OpenShift and container runtime tooling (Docker/Podman). Proven track record in system hardening, vulnerability remediation, and audit readiness (CIS/ISO). Strong RCA and troubleshooting skills; ability to lead complex incident resolution across cross-functional teams. This position involves access to export-controlled technology which requires U.S. Person status or government authorization. A 'U.S. Person,' as defined by 22 C.F.R. ยง120.62, includes U.S. citizens, U.S. nationals, individuals lawfully admitted for permanent residence (green card holders), and individuals granted asylum or refugee status in the United States. To be considered for this position, you must either be a U.S. Person or fall within a legally recognized export control exception or authorization. If hired, you will be required to provide valid proof of such status. Desired Characteristics Certifications: RHCE/RHCSA, CKA/CKAD, Azure Administrator (AZ-104) or Azure Architect (AZ-305), CompTIA Security+. Experience with Terraform, Git/GitLab CI, secret management (e.g., HashiCorp Vault), and SIEM solutions (Splunk/ELK). Familiarity with aerospace/regulated environments. ## Description Hybrid Cloud Orchestration: Design, implement, and support complex hybrid environments across Azure, on-prem, and VMware; engineer integration solutions for seamless data flow and operational continuity. Cloud Migration Leadership: Provide technical leadership to unblock and accelerate cloud migrations, ensuring alignment with long-term business roadmaps. Resource & Storage Management: Optimize storage and resource utilization across diverse Linux distributions to maintain performance and cost efficiency. Containerization & Modernization: Engineer and support platforms using Kubernetes, OpenShift, Docker/Podman to accelerate deployment of mission-critical applications. Advanced Automation & Operational Excellence Root Cause Analysis (RCA): Serve as SME to diagnose complex Linux failures; drive swift remediation to minimize downtime in production and migration environments. Enterprise Server Management: Manage multi-site Linux ecosystems (e.g., RHEL/AlmaLinux, Ubuntu, SUSE) including stability, patching, and lifecycle management. Infrastructure as Code (IaC): Use Ansible-integrating Python and Bash-to standardize server builds/configurations across multiple Linux flavors for rapid, consistent, audit-ready deployments. Observability & Reliability: Implement monitoring/alerting (e.g., Prometheus, Grafana, ELK/Splunk); participate in on-call rotations and planned maintenance windows to uphold SLAs. Security, Compliance, and Governance (Aerospace Focus) System Hardening & Benchmarks: Harden Linux systems to meet/exceed CIS Benchmarks; reduce attack surface and satisfy strict regulatory requirements. Policy & Certification Documentation: Develop and maintain Crypto Standards Procedures supporting ISO 27001 compliance; contribute to policy, standards, and audit artifacts. Access Control & Identity: Manage PKI infrastructure, enforce least-privilege access standards, and implement robust account creation and restrictions. Frameworks & Controls (Preferred): Experience with NIST 800-53, FedRAMP, and DoD STIGs in regulated environments., As part of our commitment to maintaining a safe and secure workplace, successful completion of a background check and drug screening is a mandatory condition for employment. 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