Legos

Legos is a global telecommunications platform provider covering 110 countries. The platform handles 1.2 billion minutes and 360 million SMS per year, serving 100+ operators with white-label voice, messaging, mobile, and data services. Partners include Sinch, Ringover, and Trustteam.

As Telecom Architect, I managed critical infrastructure for the Full MVNO platform: 4G, SIP core, SMS, MMS, roaming, fraud detection, and traffic analytics. I worked with a team of four engineers, managing end-to-end service delivery for thousands of live customers, and collaborating with Cisco, Sonus, RedHat, and VMware on integration and maintenance.

Key contributions

• End-to-end management of 4G, SIP core, SMS, MMS, roaming, and fraud detection
• Platform serving 100+ operators across 110 countries
• 1.2 billion minutes/year and 360 million SMS/year throughput
• Collaborated with Cisco, Sonus, RedHat, Italtel, Dialogic, and VMware
• 24/7 on-call support and incident response for thousands of live customers
• Open-source telecom integration: Kamailio, Freeswitch, SMPP gateways

Stack

Takeaway

Telecom infrastructure is where I learned that reliability isn't about avoiding failure, it's about recovering fast. Managing 24/7 systems for thousands of live customers taught me to design for the 3am page, not the happy path.