Zello Tech Stack

Push-to-talk voice platform for frontline workers and first responders

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

Zello operates a push-to-talk voice platform at scale—10 billion messages monthly across 200+ countries—with a tech stack built for real-time voice and observability (Prometheus, Grafana, Loki, OpenTelemetry, Kubernetes). Hiring velocity is accelerating with 9 roles posted in the last 30 days, heavily weighted toward sales (6 roles) and product (5 roles), signaling a shift toward enterprise customer acquisition and onboarding. Active projects center on external-facing sales function, corporate account onboarding, and enterprise technical onboarding—indicating a deliberate pivot from consumer/grassroots adoption toward structured enterprise go-to-market.

Tech Stack 18 technologies

Core StackPrometheus Grafana Loki OpenTelemetry Kubernetes Terraform Linux OpenAI PyTorch TensorFlow Snowflake dbt Slack GCP iOS Android Claude

What Zello Is Building

◆Challenges

Untapped market needs real-time voice communication
Improving observability
Reducing alert fatigue
Enhancing system resilience
Improving onboarding consistency and scalability
Acquiring enterprise leads
Improving product usability
Scaling design system
Identifying the right problems
Urgent need for real-time voice communication

▲Active Projects

Shaping the playbook
Proof-of-concept trials
End-to-end observability tooling
External-facing sales function
Incident response and postmortem processes
Corporate account onboarding
Customer support and issue resolution
Enterprise technical onboarding projects
Zello.com website experiences
Management console

Hiring Activity

Accelerating15 roles · 9 in 30d

Department

Sales

Product

Data

Engineering

Marketing

Support

Seniority

Senior

Intern

Mid

Director

Junior

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About Zello

Zello provides instant voice communication over Wi-Fi and cellular networks, targeting frontline workers, first responders, and enterprise teams. The platform delivers unlimited secure channels with message replay, location tracking, and emergency alerts. Founded in 2012, the company operates from Austin with 51–200 employees, serving users across 200+ countries. Current operational focus spans three areas: strengthening observability infrastructure (end-to-end tooling, alert fatigue reduction, system resilience), scaling the enterprise sales motion (corporate onboarding, technical enablement, management console), and expanding design and product systems to support growth.

HeadquartersAustin, Texas

Company Size51–200 employees

Founded2012

Hiring MarketsUnited States, Germany

Frequently Asked Questions

What tech stack does Zello use?

Zello's core infrastructure runs on Kubernetes and GCP with observability via Prometheus, Grafana, Loki, and OpenTelemetry. Mobile apps target iOS and Android. Data infrastructure includes Snowflake and dbt; AI integration includes OpenAI and Claude.

Where is Zello headquartered and hiring?

Zello is headquartered in Austin, Texas. Active hiring spans the United States and Germany, with acceleration noted in recent posting velocity.