Company profile

Telnyx Tech Stack

Carrier network, edge compute and voice AI infrastructure on one API

Software Development Austin, Texas 201–500 employees Founded 2009 Privately Held

Telnyx runs its own telephony and compute infrastructure, visible in a bare-metal stack of Proxmox, Ceph, QEMU, SR-IOV and VXLAN alongside Kubernetes, Elixir and Go. Adoption of OpenAI, LiteLLM and WebRTC, plus projects to deploy open-weight LLMs inside customer environments, points to a push into sovereign and air-gapped voice AI. Hiring is accelerating, senior-heavy and split between engineering and enterprise sales pods across APAC and DACH.

Tech Stack 170 technologies

Core StackSalesforce Kubernetes Ansible Terraform Python Apache Airflow Go Puppet Elixir Docker Prometheus Grafana RabbitMQ Java Scala Kafka Cassandra ClickHouse Proxmox Ceph QEMU VXLAN SR-IOV Terragrunt Ansible Tower Ansible AWX SIP Trunking Consul Envoy Kafka Streams+121 more

AdoptingOpenAI WebRTC LiteLLM

ReplacingAnaplan

What Telnyx Is BuildingChallenges and projects from their job posts

◆Challenges

Air-gapped and sovereign-cloud deployment requirements
Low latency and regional data processing demands
Modernizing legacy communication and connectivity systems
Automating manual processes and workflows
Integration challenges

▲Active Projects

Running open-weight LLMs in customer environments
AI voice assistants and AI contact center
LiteLLM gateway deployment
Local enterprise sales pods and DACH playbook
Sales expansion across APAC markets

Hiring Activity

Accelerating120 roles · 90 in 30d

Department

Engineering

Sales

Support

Finance

Ops

Seniority

Senior

Mid

Junior

Lead

Director

Manager

Notable leadership hires: Systems Automation Lead, Sales Director

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About Telnyx

Telnyx is a privately held communications and AI infrastructure company headquartered in Austin, Texas, founded in 2009 and sized at 201–500 employees. It offers programmable voice, SIP trunking, cloud connectivity, IoT and eSIM services, together with inference capacity for building conversational voice agents. Customers use the platform for support automation, outbound calling and embedding voice AI into their own products. The company recruits across more than twenty countries, including the United States, United Kingdom, Netherlands, Poland, India, Singapore, Japan and the UAE.

HeadquartersAustin, Texas

Company Size201–500 employees

Founded2009

Hiring MarketsItaly, United States, United Kingdom, Netherlands, Poland, India, Vietnam, Singapore

Frequently Asked Questions

What tech stack does Telnyx use?

Telnyx runs Kubernetes, Proxmox, Ceph, QEMU, Terraform and Ansible for infrastructure, builds in Go, Elixir, Python, Java and Scala, and uses Kafka, Cassandra, ClickHouse, Prometheus and Grafana for data and observability.

Is Telnyx hiring engineers and sales staff?

Yes. Hiring is accelerating and concentrated in senior engineering and sales roles, with leadership openings such as Systems Automation Lead and Sales Director, and recruiting across Europe, APAC and the Americas.

What is Telnyx working on in AI?

Telnyx is building AI voice assistants and an AI contact center, deploying a LiteLLM gateway, and running open-weight LLMs inside customer environments, while adopting OpenAI and WebRTC.

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How this profile is built

Telnyx'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.