Linux Engineer - Senior

Role OverviewThe Senior Linux Engineer will join our technology team at a leading retail bank. This role is embedded within the IT Security organization and is responsible for designing, implementing, securing, and maintaining enterprise Linux infrastructure. You will play a critical role in ensuring the stability, integrity, and security of Linux-based systems, with a strong focus on automation, compliance, and operational excellence. The ideal candidate brings deep expertise in Red Hat Enterprise Linux (RHEL), configuration management, and scripting, along with a security-first mindset aligned to banking regulatory standards.Key ResponsibilitiesInstall, configure, harden, and maintain Linux-based servers (primarily RHEL) across enterprise environmentsImplement and enforce security best practices, including system hardening, patching, and vulnerability remediationMonitor system performance, availability, and reliability; proactively identify and resolve issuesAutomate operational tasks and workflows using Bash scripting and AnsibleDevelop and maintain Ansible playbooks for configuration management, patching, and system provisioningSupport and manage Linux environments for both traditional infrastructure and vendor-based appliance systems (Linux ISOs)Collaborate with IT Security teams to ensure compliance with internal policies and external regulatory requirementsManage user access controls, SSH configurations, and secure authentication mechanismsImplement and maintain SSL/TLS certificates and secure communication protocolsSupport cryptographic operations and integrations, including key management platforms where applicablePartner with application, infrastructure, and security teams to support secure deployments and troubleshootingPerform root cause analysis for system incidents and implement preventive measuresMaintain documentation for system configurations, processes, and security proceduresParticipate in on-call rotations and provide production support as neededContribute to continuous improvement of system automation, security posture, and operational efficiencyRequired Qualifications/SkillsBachelor’s degree in Computer Science, Information Technology, or related field6+ years of experience administering Linux systems in enterprise environments, with strong focus on RHELStrong expertise in Red Hat Enterprise Linux (RHEL 7/8/9) system administrationProven experience with Bash scripting for automation and system managementHands-on experience with Ansible for configuration management and automation (required)Strong understanding of Linux system internals (processes, memory, file systems, networking)Experience with system hardening and security best practices (CIS benchmarks, STIGs, etc.)Solid knowledge of SSH, SSL/TLS, and secure communication protocolsExperience with patch management, vulnerability remediation, and compliance frameworksFamiliarity with identity and access management in Linux environmentsStrong troubleshooting skills across OS, networking, and application layersExperience working in regulated environments (financial services, banking, etc.)Strong communication skills and ability to collaborate across technical teamsPreferred QualificationsExperience with cryptography concepts and key management systems (e.g., Thales, HashiCorp Vault)Exposure to certificate management platforms such as KeyfactorFamiliarity with cloud platforms (Azure preferred, AWS secondary)Experience supporting Linux-based vendor appliances and custom OS imagesKnowledge of containerization technologies (Docker, Kubernetes – nice to have, not required)Experience with monitoring tools (e.g., Splunk, Prometheus, Nagios)Understanding of DevOps practices and infrastructure as codeFamiliarity with audit and compliance frameworks (SOX, PCI-DSS, etc.)Location: Pittsburgh, PAAbout Techstra SolutionsTechstra Solutions is a certified woman-owned (WBENC) management consulting firm specializing in strategy, technology, and implementation services for large organizations undergoing digital and talent transformation. Our experienced team partners with clients to co-create innovative solutions in applications, data, AI, and automation that accelerate measurable, sustainable change. From advisory consulting through technical execution, we are dedicated to driving world-class business solutions that fit your strategic requirements and deliver results. For more information: www.techstrasolutions.com