Telnyx Tech Stack

Full-stack voice AI and CPaaS platform with global telephony infrastructure

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

Telnyx operates a converged platform spanning voice APIs, conversational AI, and eSIM connectivity—built on Kubernetes, Python, Go, and a dedicated ML stack (Ray, Kubeflow, MLflow). The company is actively replacing Kubernetes (likely optimizing away from it) while adopting containerization alternatives (Firecracker, Kata Containers, Knative) and AI frameworks (LangChain, LangGraph), signaling a shift toward lightweight inference and tighter latency control for voice workloads. Hiring is accelerating across engineering and sales, with concurrent regional expansion projects across APAC, LATAM, and Europe—typical of a growth-stage infrastructure platform scaling beyond North America.

Tech Stack 88 technologies

Core StackSalesforce Kubernetes Python Go Ansible Puppet Terraform Docker Kubeflow MLflow Weights & Biases Kafka Redis PostgreSQL FastAPI make Procore LinkedIn Ray Parquet Starlette Kamailio C GCC clang gdb valgrind sngrep VoLTE SIP+48 more

AdoptingNext.js LangChain CPaaS Firecracker Kata Containers Knative LangGraph Radix UI+4 more

ReplacingKubernetes

What Telnyx Is Building

◆Challenges

Expanding into new territory
Ensuring compliance with evolving messaging regulations
Latency and scalability issues
Managing large-scale database infrastructure
Expanding into latam market
Migrating database services from vms to kubernetes
Expanding facilities in remote locations
Building ai-first compute foundation
Complex telecom connectivity challenges
Communications challenges

▲Active Projects

Sales strategy across the anz region
Migration of database services to kubernetes
Sales strategy for south america market
Platform demos
Embedding real-time messaging into fintechs
Scaling secure voice and ai infrastructure for healthtech
Design developer-friendly apis
Sales strategy development for european region
Portal demo program
Co-marketing pipeline events

Hiring Activity

Accelerating90 roles · 45 in 30d

Department

Engineering

Sales

Marketing

Construction

Product

Design

Support

Seniority

Mid

Senior

Junior

Manager

Intern

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About Telnyx

Telnyx provides a full-stack platform combining programmable voice APIs, conversational AI infrastructure, and eSIM connectivity for developers and enterprises. The company operates its own global telephony backbone and dedicated inference hardware, enabling low-latency real-time voice experiences without reliance on third-party providers. Customers span customer support automation, outbound call operations, and embedded voice-AI use cases in fintech and healthtech verticals. Based in Austin, Texas, the company employs 201–500 people and is expanding hiring across 20+ countries, with active initiatives to establish sales and engineering presence in Australia, South America, and Europe.

HeadquartersAustin, Texas

Company Size201–500 employees

Founded2009

Hiring MarketsUnited States, Australia, Ireland, Netherlands, Poland, United Arab Emirates, India, Argentina

Frequently Asked Questions

What tech stack does Telnyx use?

Core: Python, Go, Kubernetes, PostgreSQL, Kafka, Redis. ML/inference: Ray, Kubeflow, MLflow, Weights & Biases. Telecom: Kamailio, SIP, VoLTE. Frontend: Next.js, Radix UI, shadcn/ui. Infrastructure: Docker, Terraform, Ansible.

What is Telnyx working on?

Scaling voice and AI infrastructure for healthtech; regional sales expansion (APAC, LATAM, Europe); Kubernetes migration for database services; embedding real-time messaging into fintechs; developer API design.