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Medical Guardian · 1 day ago

Linux Systems Engineer

Philadelphia, PA

Full-time

Hybrid

Mid Level

3+ years exp

Medical Guardian is a fast-growing digital health and safety company on a mission to help people live a life without limits. The Linux Systems Engineer is responsible for ensuring the stability, performance, and reliability of the Linux-based environment while collaborating with various teams to manage incidents and optimize systems.

Consumer ElectronicsHealth CareMedical

Growth Opportunities

No H1B

Responsibilities

System Monitoring & Incident Response

Monitor system and application health using tools such as Datadog, Prometheus, Grafana, or Azure Monitor

Respond to alerts in real time, performing root cause analysis and executing immediate remediation when required

Restart or recover Linux services, containers, and background processes safely and efficiently

Analyze logs and system metrics to detect trends, prevent outages, and drive long-term stability improvements

Participate in on-call rotation and defined incident response procedures

System Maintenance & Stability

Maintain, configure, and optimize Linux systems (e.g., Ubuntu, CentOS, or Red Hat) across production and development environments

Manage, configure, and troubleshoot Apache web servers, including virtual hosts, SSL/TLS certificates, modules, and performance tuning

Perform updates, patching, and configuration changes in line with change management and compliance standards (HIPAA, PCI, SOC 2)

Automate maintenance and monitoring routines using Bash, Python, or Ansible

Support operational readiness for application releases and infrastructure changes

Collaboration & Continuous Improvement

Work closely with application, platform, and development teams to ensure seamless deployments and stable operations

Collaborate regularly with the Managed Service Provider (MSP) to coordinate incident response, validate system health, and ensure SLA alignment

Participate in joint troubleshooting sessions with the MSP to identify root causes and implement permanent resolutions

Provide detailed system insights and maintain accurate communication channels between internal IT leadership and the MSP

Partner with Engineering and Platform teams to improve alerting, logging, and observability

Document all processes, incident reports, and runbooks in Confluence or equivalent repositories

Security & Compliance

Ensure system configurations align with internal security policies and compliance standards

Maintain logging and access controls consistent with HIPAA, SOC 2, and PCI DSS expectations

Apply the principle of least privilege and use secure methods for credential and key management

Qualification

Linux managementApache web serverSystem monitoringAutomation scriptingCloud infrastructureNetwork troubleshootingContainerizationIncident responseDocumentationSoft skills

Required

3+ years of hands-on experience managing and troubleshooting Linux-based production environments (e.g., Ubuntu, CentOS, Red Hat), supporting at least 50+ servers or VMs in enterprise or high-availability settings

Strong knowledge of Linux internals, including: Process management (ps, top, htop, etc.), Systemd service configuration and management, Journald log review and tuning, Performance tuning using tools like vmstat, iostat, sar, strace

Direct experience configuring and managing Apache web servers, including: Virtual hosts, modules (e.g., mod_ssl, mod_rewrite), SSL/TLS setup and certificate management (e.g., Let's Encrypt, custom CAs), Performance optimization techniques (e.g., KeepAlive tuning, gzip, caching modules)

Monitoring and alerting experience with at least one major tool (list in resume preferred): Datadog, Prometheus, Nagios, Zabbix, Azure Monitor, or similar

Automation experience, including: Bash scripting for recurring tasks (share sample scripts if applicable), Python scripting or Ansible playbooks for config management, deployments, or maintenance

Experience with network and DNS troubleshooting (e.g., dig, nslookup, tcpdump, iptables, or netstat), Understanding of load balancing concepts (e.g., HAProxy, Nginx, or cloud-native load balancers)

Demonstrated incident response or root cause analysis contributions (please highlight real examples in resume or cover letter)

Strong documentation habits: e.g., created or maintained runbooks, internal wikis, or system diagrams

Exposure to Azure (preferred) or other cloud platforms (AWS, GCP); ideally involved in VM provisioning, resource scaling, or hybrid infrastructure setup

Familiarity with containerized environments, including: Dockerfile creation and image management, Kubernetes basics (e.g., kubectl, pods, deployments, Helm charts)

Experience integrating monitoring or infrastructure steps into CI/CD pipelines (e.g., using Azure DevOps, GitHub Actions, Jenkins)

Basic understanding of web stacks from an operational standpoint: Familiarity with at least one runtime: PHP, Node.js, or Python, Experience supporting app releases, restarts, or environment debugging

Candidates must be authorized to work in the United States without current or future need for visa sponsorship

Preferred

Apache performance enhancements using PHP-FPM configuration and tuning

Experience with Jasmin SMPP Server for SMS gateway or similar messaging infrastructure

Familiarity with RabbitMQ or other message brokers (e.g., Kafka, Redis Streams)

Operational knowledge of Mosquitto MQTT or similar protocols used for IoT messaging

Exposure to hybrid web server environments (e.g., Apache with Nginx reverse proxy)

Bachelor's degree in computer science, Information Technology, Engineering, or a related field preferred. Equivalent combination of education and hands-on experience will be considered