Squire Technologies Telecom Infrastructure

Project Overview

  • Role: Technical Support Engineer (Application)
  • Company: Squire Technologies
  • Industry: Telecom Signalling Solutions
  • Location: England, United Kingdom
  • Duration: Mar 2023 – Dec 2024
  • Platform: Linux, Virtualized Telecom Systems

Telecom Infrastructure & Application Support Engineering

At Squire Technologies, I worked as a Technical Support Engineer supporting large-scale telecom signalling platforms used by global operators. My role focused on ensuring high availability, performance optimization, automation, and rapid incident resolution across mission-critical systems.

Key Responsibilities & Achievements

  • Improved support case resolution time by 25% through advanced troubleshooting and root-cause analysis.
  • Provided expert-level support for Red Hat, CentOS, Rocky Linux based telecom platforms.
  • Ensured high availability and system stability for carrier-grade signalling systems.
  • Collaborated with cross-functional engineering teams to improve system reliability and alerting processes.

Automation & Optimization

  • Developed Python and Bash automation scripts for log analysis, health checks, backups, MySQL maintenance, and custom audits.
  • Automated repetitive operational tasks, reducing manual workload and minimizing downtime.
  • Created automation to replicate customer production network configurations in lab environments for faster testing and issue resolution.
  • Implemented udev rules for persistent network interface naming, reducing reboot-related outages.

Telecom & Networking Expertise

  • Supported telecom products including SBC, DRA, GMSC, MGC, FPG, STP/SG, SMSC, Soft-switches.
  • Performed deep protocol-level troubleshooting using Wireshark and tcpdump.
  • Conducted SIP, RTP, Diameter, SS7 (SIGTRAN), SCTP multihoming analysis for VoIP and signalling issues.
  • Resolved complex network bonding, DNS, and routing issues in production environments.

System Stability & Lifecycle Management

  • Diagnosed and resolved system upgrade issues including kernel panics, dependency conflicts, and service failures.
  • Applied LVM snapshots and validated changes in staging environments before production rollout.
  • Maintained EOL CentOS 7 systems by configuring alternative repositories and restoring package access.
  • Configured BIND9 as a forward DNS server to resolve DNS enumeration issues and improve network reliability.

Impact

This role strengthened my expertise in telecom infrastructure, Linux systems, automation, and carrier-grade troubleshooting, while reinforcing best practices in availability, scalability, and operational excellence within mission-critical environments.