Milliman

Job Summary

We are seeking a highly skilled Infrastructure Engineer with deep expertise in Linux and Windows administration to design, implement, and support mission-critical infrastructure for Milliman’s financial solutions. In this role, you will focus on ensuring optimal health, performance, reliability, and scalability of Linux and Windows-based systems, while also contributing to broader infrastructure projects as needed. This role will collaborate with US-based Finance IT, Operations, and Infrastructure teams, champion best practices, and foster an inclusive environment that values diverse perspectives and continuous learning. This role will report to the Manger, Infrastructure & Operations – India.

Primary Duties & Responsibilities:

Linux Systems Administration

• Architect, install, configure, and maintain enterprise-grade Linux systems (e.g., Red Hat Enterprise Linux, Ubuntu) across development, testing, and production environments.
• Develop and implement monitoring, troubleshooting, and patch management procedures to maintain system stability, performance, and security.
• Apply security hardening standards and compliance requirements to Linux environments.
• Implement robust backup, recovery, and disaster recovery strategies to ensure business continuity.

Infrastructure Support

• Collaborate with an Infrastructure Architect and cross-functional teams to align solutions with business objectives, compliance standards, and best practices.
• Participate in capacity planning, resource optimization, and infrastructure expansion to support on-premises and/or cloud environments.
• Recommend new tools, technologies, or processes for continuous improvement, staying current with emerging trends in Linux and Windows technologies.

Security & Compliance

• Enforce security best practices and access controls for on-premises and cloud-based Windows and Linux environments.
• Partner with security and compliance teams to address vulnerability assessments and ensure alignment with regulatory standards.
• Embed security considerations into infrastructure design and database configurations.

Monitoring & Incident Response

• Develop key performance indicators (KPIs) and performance metrics to proactively monitor Linux systems and databases.
• Lead root-cause analysis for complex issues and implement preventive measures to reduce downtime.
• Coordinate with cross-functional teams for escalations and incident resolution.

Collaboration & Leadership

• Mentor junior engineers, providing training and guidance on Linux best practices.
• Champion inclusive decision-making and encourage varied perspectives to drive better outcomes.
• Work effectively within a ticketing system, documenting issues, changes, and solutions for transparency.

Additional Technical Contributions (as needed)

• Contribute to broader infrastructure projects—including networking, storage, virtualization, cloud migrations—where Linux and Windows expertise is critical.
• Utilize automation tools (Terraform, Ansible, Puppet, Chef) to streamline deployments and configuration management.
• Assist with infrastructure planning, budgeting, and aligning resources to business needs.

Qualifications & Requirements:

Required:

• BSc Computer Science, BTech CSE, or Engineering, or a related field (or equivalent work experience).
• 10+ years of hands-on experience in Linux systems administration (e.g., Red Hat, Ubuntu) including system design, automation, and patch management.
• Proficiency in scripting (Bash, Python, PowerShell) for automation and maintenance.
• Demonstrated ability to design and maintain mission-critical, high-availability Linux and Windows environments.
• Strong understanding of security best practices and regulatory compliance requirements.
• Excellent problem-solving, interpersonal, and communication skills, with a demonstrated ability to work effectively in diverse, cross-functional teams.

Preferred:

• Experience with cloud platforms (AWS, Azure, or GCP) and Infrastructure-as-Code (Terraform, CloudFormation).
• Certifications in Linux (e.g., RHCE), Oracle (e.g., OCP), or cloud platforms.
• Experience with virtualization (VMware), containerization (Docker, Kubernetes), and storage area networks (SANs).
• Working knowledge of networking (TCP/IP, DNS, load balancing, firewalls) for broader infrastructure context.
• Track record of mentoring or leadership in a technology team environment, ideally applying agile methodologies.