Site Reliability Engineer (SRE)

Work Location: Onsite – California
Schedule: Full-Time | 5 Days Per Week | Midnight–8:00 AM (Owl Shift)
This position does not offer sponsorship. Must be authorized to work in the United States.

Position Overview

Essnova Solutions, Inc. is seeking an experienced Site Reliability Engineer (SRE) to support the National Energy Research Scientific Computing Center (NERSC), a mission-critical high-performance computing (HPC) and data environment supporting scientific research for the U.S. Department of Energy (DOE) Office of Science.

The Site Reliability Engineer will work as part of a 24/7 operations environment responsible for maintaining the accessibility, reliability, security, and operational health of large-scale computing and data systems.

This is a highly hands-on position combining Linux systems administration, infrastructure monitoring, incident response, programming and scripting, automation, networking, ServiceNow, and physical data center operations.

IMPORTANT SCHEDULE REQUIREMENT: This position requires working onsite five days per week on the midnight–8:00 AM shift. Candidates must be willing and able to consistently work this overnight schedule.

Key Responsibilities

• Monitor high-performance computing systems, storage infrastructure, networks, and other data center and facility-related systems.
• Review and respond to infrastructure and system alerts, perform initial triage, and engage appropriate on-call personnel when escalation is required.
• Respond to alerts across multiple systems to help ensure monitoring and data collection remain operational 24/7.
• Troubleshoot system, application, network, monitoring, and infrastructure issues affecting system reliability.
• Develop solutions that improve operational processes, prevent recurring issues, and automate responses to routine service conditions.
• Identify opportunities to improve monitoring capabilities, alerting, incident triage, and operational automation.
• Develop and maintain tools within the monitoring pipeline in collaboration with operations personnel.
• Develop software and integrations capable of generating alerts and notifications from HPC system APIs into monitoring pipelines.
• Build and maintain application and tool configurations to ensure reliable operation as data volumes and user demands increase.
• Utilize ServiceNow to support incident management, trouble-ticketing, operational workflows, and service management activities.
• Collaborate across technical teams to identify and resolve operational bottlenecks and maintain system reliability.
• Coordinate with technical groups during center-wide maintenance activities.
• Manage diagnostic, monitoring, and notification software during planned maintenance periods.
• Perform regular physical and logical walkthroughs of the data center floor.
• Monitor environmental conditions, power distribution units (PDUs), cooling infrastructure, and other facility systems supporting reliable data center operations.
• Maintain accurate trouble-ticket documentation for outages, incidents, maintenance activities, troubleshooting actions, and operational updates.
• Analyze problems of varying complexity and evaluate technical data to determine appropriate troubleshooting and remediation methods.
• Exercise independent technical judgment when selecting methods and approaches for resolving operational issues.

Compensation

$80.00 per hour

The anticipated pay rate for this position is $80.00 per hour . Actual compensation may be determined based on job-related factors including experience, qualifications, skills, contractual requirements, and applicable law.

Equal Employment Opportunity

Essnova Solutions, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex, pregnancy, childbirth or related medical conditions, sexual orientation, gender, gender identity or expression, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, marital status, military or veteran status, or any other characteristic protected by applicable federal, state, or local law.

Essnova Solutions, Inc. is committed to providing reasonable accommodations to qualified individuals with disabilities and applicants with disabilities throughout the recruitment and employment process.

Requirements

Required Qualifications

• 5+ years of relevant professional experience in Site Reliability Engineering, systems/infrastructure engineering, DevOps, data center operations, HPC operations, network/system operations, or a closely related technical environment.
• Strong hands-on experience working with Linux , including Linux shell and command-line environments such as SSH.
• Programming and/or scripting experience using one or more languages such as:
• Python
• C
• C++
• Perl
• Java
• Comparable scripting or programming languages
• Knowledge of standard software development practices.
• Experience supporting large-scale IT infrastructure, highly available systems, data centers, critical installations, or comparable technical environments.
• Knowledge of large data communications networks and common network protocols.
• Network security experience, including knowledge of firewalls and access control lists (ACLs) .
• Experience troubleshooting infrastructure, application, system, network, or operational issues.
• Experience responding to monitoring alerts and performing technical incident triage.
• Ability to analyze operational and system data to identify problems and determine appropriate solutions.
• Experience collaborating across multiple technical teams to resolve operational issues and maintain system reliability.
• Strong written and verbal communication skills.
• Ability to independently learn and apply new technologies in a complex technical environment.
• Ability and willingness to work within a 24/7 operational environment .
• Ability and willingness to work onsite five days per week from midnight–8:00 AM.

Education

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical discipline preferred.
• An equivalent combination of education, technical training, certifications, and relevant professional experience may be considered.

Technical Environment

Candidates may work with technologies and platforms including:

• Linux / SSH
• Python
• C / C++
• Perl
• Java
• ServiceNow
• Kubernetes
• Prometheus
• VictoriaMetrics
• Alertmanager
• HPC systems
• Monitoring and alerting pipelines
• Network protocols
• Firewalls and ACLs
• Building management systems
• Data center power and cooling infrastructure
• Infrastructure and operational automation

Candidates are not necessarily expected to have prior experience with every technology listed above but should possess the technical foundation and learning ability necessary to work effectively within a complex computing and data center environment.

Preferred Qualifications

• Experience implementing, configuring, or customizing ServiceNow .
• Familiarity with IT Service Management (ITSM) best practices and service lifecycle management.
• Experience supporting high-performance computing (HPC) environments.
• Experience supporting scientific computing, large-scale data centers, critical infrastructure, or other highly available environments.
• Hands-on experience with Kubernetes .
• Experience with monitoring technologies such as Prometheus, VictoriaMetrics, Alertmanager , or comparable platforms.
• Experience developing monitoring, alerting, infrastructure automation, or incident-response tools.
• Experience developing integrations with system or infrastructure APIs.
• Understanding of data center environmental monitoring, cooling systems, power utilization, and/or building management systems.
• Practical experience developing or deploying Agentic AI or autonomous automation tools to streamline technical operations.
• Experience building autonomous-agent solutions capable of automating technical decision-making, optimizing workflows, or enhancing proactive system monitoring.