Telecom systems engineering

Software for systems that cannot quietly fail.

Yaazhi Systems is a telecom-rooted systems engineering company. We architect, build, integrate and assure carrier-grade software — protocol stacks, distributed systems, cloud-native deployment, and the verification that proves any of it works.

From the first architecture decision to operational handover, the design, the automation, the tests and the evidence come with it.

4G · 5G · IMSBrought up end to end in our own lab
O-RAN 7.2Open fronthaul, CU-CP / CU-UP / DU split
Under PoCRunning in a customer lab today
EvidenceCaptures, logs and configs with every claim

Where we are deepest

We build the network, not applications that sit on it.

Radio access, mobile core, IMS voice, network management, and the verification that holds all of it to account. This is a domain where the specification runs to hundreds of pages, an interface either conforms or it does not, and a system that is approximately right is simply broken.

We have brought a 4G and 5G network up end to end — radio through core to voice — and kept the packet captures. That standard of proof is what we bring to everything else we build.

Telecom in detail →

How we engage

Four steps, and you can stop after the first

The assessment stands on its own. If we are not the right people for what comes next, you keep the written technical read either way.

01

Assess

Understand the system, the constraints and the risk. It ends in a written technical read, not a proposal.

02

Architect

Interfaces, delivery increments, acceptance criteria, and agreement on what evidence will count as done.

03

Build

Working increments, with design, automation and tests arriving alongside the code rather than after it.

04

Assure & hand over

Behaviour, performance and recovery validated, then the whole thing transferred to your team with what they need to run it.

Architecture or technical assessment Defined module delivery Long-term engineering partnership Fractional technical leadership Recovery of a programme in trouble

Core philosophy

Three things we build everything on

Whatever the technology, the work comes back to these three — and to keeping them pointed the same way.

Systems thinking

Thinking in parts within a whole, and the whole within each part. A change to one component is a change to everything around it — so we design for the interactions and the failure paths, and we write the reasoning down, so the shape of the system outlives the people who chose it.

AI

In the product and in the work. We build models and AI-driven applications, and we turn the same tools on our own engineering. Always where the output can be checked: unverifiable and unusable are the same thing.

Execution

Shipping. A design that is not running somewhere is still a document. We put something working in front of you early and keep going — getting there by knowing what to build, not by cutting the things that make it hold.

Have a system that has to hold?

Tell us the problem and the constraints you are working under. You will get a technical answer from someone who would do the work, not a sales call.

Start a technical conversation