Zaleos. Engineer. Secure. Connect.

Software for
Real-Time Communications

Engineer. Secure. Connect.

What we do

We engineer and support software for RTC.

Development, maintenance, testing, and consultancy for companies that depend on Real-Time Communications.

Emergency Services

Zaleos builds mission-critical solutions for Emergency Services providers—helping them unify data, accelerate response times, and save lives. We engineer the Core Services behind Next Generation 112 and 911 ESINets.

Network Functions

Zaleos develops the software components that power private networks. We specialize in software-based network functions, including IMS.

Enterprise Communications

Zaleos helps companies build and evolve cloud-based real-time communications platforms. We engineer the software behind VoIP services, cloud PBX, CPaaS platforms, and real-time voice and video applications.

VALINET™

VALINET is our in-house testing platform built for real-time communications. It’s designed to validate the reliability, scalability, and interoperability of critical RTC systems under pressure. With automated functional and load testing for SIP, RTP, RTT, and MSRP, VALINET adapts to modern telecom needs through a flexible, extensible architecture.

who we are

We are Zaleos — Engineers by vocation.

We are a technology consulting and software development company, specialized in designing and building critical systems. Rigorous, focused, and deeply committed to our craft, we are graduates of Europe’s top universities, bringing exceptional technical expertise and discipline to every project.

Since 2015, we’ve dedicated ourselves to Software Engineering excellence, building systems that keep essential services running and people connected.

We think long-term — in how we support our communities, empower our team, deliver our work, and grow lasting partnerships.

In a hyperconnected world where communication failure is not an option, reliability becomes non-negotiable—and our engineering principles reflect that reality at every level.

At Zaleos, we build cloud-native, highly available solutions that are infrastructure-agnostic, cost-efficient, and fully automated. Kubernetes plays a central role in our architecture, enabling us to scale seamlessly, automate operations, and ensure resilience across environments. We believe that critical systems demand the precision, discipline, and creativity of experienced engineers.