Network Engineer-DCC

Job Description

About the Role

This position is with RINA, the parent company of DCC, a subsidiary of Strata Networks. The position will be located in Green Bay, Wisconsin, Vernal/Roosevelt, Utah, or remote. We are seeking a Telecommunications Systems Operations Engineer to support and maintain our Linux-based telecommunications infrastructure. This hands-on role focuses on daily operations of PHP LAMP stack applications and core telecom platforms, including HSS (Home Subscriber Server), OTA (Over-The-Air provisioning), ENUM services, and carrier integration systems running on Ubuntu servers. The role blends Linux system administration, PHP application support, and telecommunications operations to ensure system availability, performance, and reliability.

Core Responsibilities:

System Operations & Monitoring

• Monitor production Ubuntu servers and critical telecom services
• Perform daily health checks on LAMP stack components
• Monitor HSS availability, OTA provisioning workflows, and ENUM services
• Review system and application logs, alerts, and security events
• Track system uptime, backups, and service availability metrics

Linux Server Administration

• Administer Ubuntu LTS environments (20.04–24.04)
• Apply system updates, security patches, and package management
• Configure and maintain Apache, MySQL/MariaDB, SSL certificates, and firewalls
• Monitor and troubleshoot performance, resource usage, and service failures
• Implement log rotation, cleanup, and routine maintenance procedures

PHP Application Support

• Troubleshoot PHP applications and LAMP stack issues
• Review PHP error logs and adjust configurations
• Support PHP upgrades, deployments, and dependency management
• Collaborate with developers to resolve application defects

Telecommunications Systems Management

• Support HSS subscriber provisioning and authentication
• Maintain OTA platforms for SIM configuration and updates
• Manage ENUM databases for number routing
• Support IMS-related services (VoLTE, VoWiFi preferred)
• Troubleshoot provisioning, authentication, and carrier integration issues

Database Management

• Administer MySQL/MariaDB databases, backups, and recovery
• Monitor performance, optimize queries, and manage replication
• Perform data validation and generate operational and billing reports

Incident Response & Documentation

• Respond to production incidents and outages
• Perform root cause analysis and document resolutions
• Maintain runbooks, system documentation, and configuration records
• Participate in on-call rotation and scheduled maintenance windows

Required Qualifications:

• 3–5 years of Ubuntu/Linux system administration experience
• Production experience with LAMP stack environments
• MySQL/MariaDB administration and PHP troubleshooting skills
• Basic networking knowledge (TCP/IP, DNS, firewalls)
• Familiarity with telecom concepts: HSS/HLR, OTA, ENUM, IMSI/MSISDN
• Strong analytical, documentation, and communication skills

Preferred Qualifications

• AWS or cloud infrastructure experience
• Docker, configuration management, and monitoring tools
• Telecom protocols (Diameter, SIP, RADIUS, SMPP)
• Scripting (Python or Perl), CI/CD, and security best practices

This position is with RINA, the parent company of DCC, a subsidiary of Strata Networks supporting critical telecommunications infrastructure and operations. We offer the opportunity to work in a technically rigorous, mission-critical environment with direct impact on network reliability and subscriber services.

Qualified candidates who are detail-oriented, operationally focused, and interested in telecommunications systems are encouraged to apply. Join a team where reliability, accountability, and technical excellence are essential to delivering trusted communications services.