Linux Engineer

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., * 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

• 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, * 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.)

Invitation for Job Applicants to Self-Identify as a U.S. Veteran

• A "disabled veteran" is one of the following:

• a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
• a person who was discharged or released from active duty because of a service-connected disability.

• A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
• An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
• An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Techstra 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: [INS: www.techstrasolutions.com :INS] Equal Employment Opportunity Statement Techstra Solutions is an equal opportunity employer. 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. The policy of equal opportunity applies without regard to race, color, creed, religion, gender, sexual orientation, gender identification, pregnancy, marital status, national origin, ancestry, age, disability that can reasonably be accommodated without undue hardship, military status, veteran status, genetic predisposition or carrier status, alienage or citizenship, domestic partnership status, arrest or conviction record, status as a victim of domestic violence, or any other protected categories under federal, state, or local law. The Company also prohibits discrimination or harassment based upon the perception that a person has, or is associated with a person who has, any of these characteristics. Share