Zello Tech Stack

Push-to-talk voice platform for frontline workers and emergency response

Software Development Austin, Texas 51–200 employees Founded 2012 Privately Held

Zello operates a global push-to-talk platform handling 10 billion messages monthly across 200+ countries. The tech stack reveals a mature observability and infrastructure backbone (Prometheus, Grafana, Loki, OpenTelemetry, Kubernetes) paired with emerging AI capabilities (OpenAI, PyTorch, TensorFlow), while active projects signal a pivot toward production-grade AI agents and revenue scaling via partner ecosystems. The hiring mix—senior engineers, data roles, and sales headcount—reflects simultaneous efforts to stabilize platform reliability and build out indirect channels.

Tech Stack 39 technologies

Core StackPrometheus Grafana Loki OpenTelemetry Kubernetes Terraform OpenAI PyTorch TensorFlow Snowflake dbt Slack Python Jira HubSpot C++ Rust Go Cassandra MongoDB MySQL Kotlin Java Figma GCP iOS Android Hilt Gradle UIKit+9 more

What Zello Is Building

◆Challenges

Urgent need for real-time voice communication
Scaling indirect revenue engine
Avoiding channel conflict
Support triage bottlenecks
Manual data workflows
Scattered internal knowledge
High-value ai use cases exceeding capacity
Lack of dedicated ai engineer
Complex technical issues beyond l1 support
Enterprise deployments and integrations

▲Active Projects

Observability coverage expansion
Proof-of-concept trials
Highly available mysql and mongodb clusters
Bundled co-sell ecosystem
Partner-sourced revenue targets
Bundled sku initiatives
Automated triage agent
Crm enrichment pipeline
Shaping the playbook
Production-grade ai agents

Hiring Activity

Accelerating10 roles · 7 in 30d

Department

Engineering

Data

Sales

Support

Design

Seniority

Senior

Mid

Director

Intern

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About Zello

Zello is a push-to-talk voice communication platform designed for frontline workers, first responders, and emergency teams. The product runs over Wi-Fi and cellular networks, offering unlimited channels, message replay, location tracking, and emergency alerts accessible from smartphones and smart devices. The company is privately held, based in Austin, and operates with competitive equity packages and intentional benefits including flexible schedules and sabbaticals after five years of service.

HeadquartersAustin, Texas

Company Size51–200 employees

Founded2012

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Zello use?

Zello's stack spans infrastructure (Kubernetes, Terraform, GCP), observability (Prometheus, Grafana, Loki, OpenTelemetry), databases (Cassandra, MongoDB, MySQL), backend languages (Python, Go, Rust, C++), mobile (iOS, Android, Kotlin, Java), AI/ML (OpenAI, PyTorch, TensorFlow), data (Snowflake, dbt), and tools (Slack, HubSpot, Jira, Figma).

What is Zello working on?

Active projects include observability expansion, production-grade AI agents, highly available database clusters (MySQL, MongoDB), partner-sourced revenue and bundled SKU initiatives, automated support triage, CRM enrichment pipelines, and proof-of-concept trials for enterprise deployments.

How this profile is built

Zello's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.