Linux Engineer - Senior

Techstra Solutions • Pittsburgh, PA

1d • Onsite

About The Position

The 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.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 6+ years of experience administering Linux systems in enterprise environments, with strong focus on RHEL
• Strong expertise in Red Hat Enterprise Linux (RHEL 7/8/9) system administration
• Proven experience with Bash scripting for automation and system management
• Hands-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 protocols
• Experience with patch management, vulnerability remediation, and compliance frameworks
• Familiarity with identity and access management in Linux environments
• Strong troubleshooting skills across OS, networking, and application layers
• Experience working in regulated environments (financial services, banking, etc.)
• Strong communication skills and ability to collaborate across technical teams

Nice To Haves

• Experience with cryptography concepts and key management systems (e.g., Thales, HashiCorp Vault)
• Exposure to certificate management platforms such as Keyfactor
• Familiarity with cloud platforms (Azure preferred, AWS secondary)
• Experience supporting Linux-based vendor appliances and custom OS images
• Knowledge 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 code
• Familiarity with audit and compliance frameworks (SOX, PCI-DSS, etc.)

Responsibilities

• Install, configure, harden, and maintain Linux-based servers (primarily RHEL) across enterprise environments
• Implement and enforce security best practices, including system hardening, patching, and vulnerability remediation
• Monitor system performance, availability, and reliability; proactively identify and resolve issues
• Automate operational tasks and workflows using Bash scripting and Ansible
• Develop and maintain Ansible playbooks for configuration management, patching, and system provisioning
• Support 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 requirements
• Manage user access controls, SSH configurations, and secure authentication mechanisms
• Implement and maintain SSL/TLS certificates and secure communication protocols
• Support cryptographic operations and integrations, including key management platforms where applicable
• Partner with application, infrastructure, and security teams to support secure deployments and troubleshooting
• Perform root cause analysis for system incidents and implement preventive measures
• Maintain documentation for system configurations, processes, and security procedures
• Participate in on-call rotations and provide production support as needed
• Contribute to continuous improvement of system automation, security posture, and operational efficiency

Benefits

• The Company makes its decisions on merit, and its policy of equal opportunity prohibits discrimination in all phases of the employment process, including, but not limited to, recruitment, hiring, promotion, selection, transfer, demotion, layoff, termination, compensation, benefits, and other terms and conditions of employment.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior