Senior Infrastructure Engineer

Chicago Officefull timeOn Site

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senior

$90k–$150k

H1B: no

Missiononemedia Senior Infrastructure Engineer at MissionOne Media responsible for operational ownership of legacy environment and shaping future cloud architecture. Ensures stability, security, and high availability of production VMs and MySQL databases.

Responsibilities

Incident Response & Operational Stability: Own the incident management lifecycle for production. Triage alerts, troubleshoot OS-level bottlenecks, debug performance issues, and drive rapid root-cause analysis.
Performance Monitoring & Debugging: Actively monitor system performance, application logs, and resource health using modern observability platforms (such as Observe by Snowflake) to quickly diagnose and resolve operational issues.
Legacy Infrastructure Management: Proactively maintain, patch, and secure our existing virtual machines on GCP.
Legacy Database Operations & Health: Monitor MySQL 5.7 instances, manage backups, and troubleshoot connection pool exhaustion or locking issues.
Cloud Architecture & Modernization: Collaborate to design, provision, and scale forward-looking cloud infrastructure for our new products and services, incorporating modern cloud-native tools and managed services (such as Cloud SQL and BigQuery).
Automation & Infrastructure-as-Code (IaC): Gradually replace manual operational tasks with clean automation scripts and infrastructure tools to reduce toil and improve repeatability.
Security & Compliance: Ensure systems comply with enterprise security baselines through rigorous OS hardening, access controls, and vulnerability patching.
Qualificiations:
Experience: 5+ years in a System Administration, Site Reliability Engineering (SRE), or Infrastructure Operations role within an enterprise environment.
Legacy Stack Mastery:
Deep expertise in Linux administration, performance tuning, and troubleshooting (including storage and file system management, specifically ZFS).
Proven experience running, tuning, and debugging Java/Tomcat applications in production.

Qualification

5+ years in System AdministrationDeep expertise in Linux administrationProven experience runningStrong working knowledge of MySQL 5

Required

5+ years in System Administration, Site Reliability Engineering, or Infrastructure Operations
Deep expertise in Linux administration, performance tuning, and troubleshooting including ZFS
Proven experience running, tuning, and debugging Java/Tomcat applications in production
Strong working knowledge of MySQL 5.7 including query tuning, replication, backup/restore

Benefits

Medical
401(k)
PTO
Life Insurance

Company

Missiononemedia

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Source: greenhouse

Active within the past hour

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Must-Have Skills for This Role

Linux administrationJavaTomcatMySQL 5.7GCPCloud SQL

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