We Build and Modernize Telecom Software Systems
Billing, network, and customer platforms, built on cloud native technology and engineered for enterprise scale. We work with telecom operators who are serious about modernizing their core systems for the long term.
Legacy Telecom Systems
Modular Cloud-Native Services
APIs & Channels
Legacy Telecom Systems
Modular Cloud-Native Services
APIs & Channels
Connects existing telecom platforms with modular services, APIs and digital channels.
Modular cloud-native services and standardized APIs integrate with existing billing, OSS and network platforms.
Modern Telecom Engineering Architecture
Delivery experience across multiple countries. Architecture aligned with TM Forum standards. Built on Java, Spring Boot, Kubernetes, and modern cloud infrastructure.
The Problems We Solve
Telecom software has a reputation problem, and it is a fair one. Billing platforms that take months to launch a new plan. OSS systems that nobody fully understands anymore because the people who built them left years ago. No real visibility into production until something breaks and a customer complains first. And now, a new generation of network API standards like CAMARA and GSMA Open Gateway that most legacy platforms were never built to support.
None of this is unsolvable. It is an architecture problem, and architecture problems have architecture solutions.
- close60–90 Day Plan Rollouts: A simple tariff tweak triggers full regression testing and midnight deployment freezes.
- closeTribal Knowledge Trap: Custom patches accumulate over a decade with no schema documentation.
- closeReactive Monitoring: Outages are discovered when subscriber churn spikes or NOC hotlines ring.
- doneFaster product and catalog change cycles: Decoupled TMF620 catalog services allow commercial changes via configuration.
- doneTM Forum ODA-Aligned Architecture: Well-documented APIs aligned with relevant TM Forum Open API specifications.
- doneEarlier detection of abnormal system behaviour through observability and automation before breach.
What We Do
Five specialized telecom software disciplines engineered for zero-downtime operations and rapid commercial agility.
Billing and OSS Modernization
Carrier-grade BSS/OSS decoupling and cloud-native migration.
Network APIs for 5G
CAMARA compliant programmability and telco network capability exposure.
Cloud Native and Microservices Development
Resilient Kubernetes architectures designed for high availability.
AI and Automation for Telecom Operations
OpenTelemetry-based observability, anomaly detection, and automation workflows for telecom operations.
TM Forum Compliance and Standards Alignment
TM Forum ODA-aligned architecture and Open API implementation.
DevOps Outsourcing
DevOps support across cloud, Kubernetes, CI/CD, infrastructure and observability.
Have a System That Needs Building or Fixing?
Let us review your legacy platform, mediation pipelines, or CAMARA requirements with your technical team.
Where the Market Is Moving
AI is Moving into Telecom Operations Fast
Predictive maintenance, anomaly detection, and automated alerting are becoming standard expectations, not nice to have extras. We build the monitoring and automation layer that makes this possible, grounded in real observability data, not just a dashboard with a label on it.
Network APIs are Becoming the Next Monetization Layer
CAMARA and GSMA Open Gateway are turning network capabilities like location and SIM verification into something developers can call through a simple API. Operators who integrate early get first access to that opportunity. We help you get there.
Why Horizon Telco Labs
Most telecom software vendors sell you a platform and hope you never need to change it much. We work the other way. We build with your roadmap in mind, using architecture that is meant to be modified, not just maintained.
That means microservices instead of monoliths, Kubernetes instead of manually managed servers, and a support relationship that does not end the day your system goes live.
We design modular bounded contexts so future tariff plans, partner APIs, or 5G slicing capabilities can be plugged in without destabilizing core rating.
Hands-on mastery over Diameter, RADIUS, 3GPP standards, and packet-level mediation alongside modern Kubernetes and cloud native orchestration.
Zero proprietary walled gardens. Built on open source Java, Spring Boot, and TM Forum standard schemas that your own team can understand and run.
We do not just ship code and vanish. We partner with operators for continuous reliability, performance tuning, and 24/7 carrier-grade assurance.
Case Studies
We have built billing systems, product catalogs, and network integrations for telecom operators across multiple countries.
Billing Modernization for a Tier 1 Telecom Operator
The operator's billing platform was a single, monolithic application running on manually managed servers. Adding a new pricing plan required a full regression test cycle and a scheduled release window, often a lengthy process. The system also lacked real-time charging flexibility, which limited the operator's ability to launch more competitive prepaid offers.
Network API Integration for a Large Mobile Operator
The operator wanted to expose network capabilities such as SIM verification and location-based services to enterprise partners, but had no standardized way to do so. Each new partner integration created additional delivery complexity.
Monolith to Microservices Migration for a Telecom Software Vendor
The vendor's OSS platform had grown into a single, tightly coupled application over several years. Every deployment carried real risk, and scaling meant scaling everything at once rather than only the components under load.
How We Work
A structured 4-stage engineering lifecycle tuned for risk mitigation and seamless cutovers.
Assessment
We look at what you have today and find out where it is actually breaking down, profiling bottlenecks and protocol dependencies.
Build or Modernize
New development or migration, depending on what your business needs, adhering to microservices and TM Forum standards.
Deploy
Rolled out carefully via automated canary deployments, without disrupting what is already running in production.
Long Term Support
We stay on to run and improve the system. We do not just hand it off and disappear.
Have a system that needs building or fixing?
Let's talk about what you're working with and what your business actually needs.