Senior Software Engineer, Telnyx

Java

Salary not provided

Docker

Kubernetes

Scala

Java

Kafka

Linux

Spark

Keep

Git

Mid and Senior level

Austin

More information about location

Full-stack platform for real-time conversational AI

Open for applications

Full-stack platform for real-time conversational AI

201-500 employees

B2BEnterpriseSaaSAPITelecommunicationsCloud Computing

Open for applications

Salary not provided

Docker

Kubernetes

Scala

Java

Kafka

Linux

Spark

Keep

Git

Mid and Senior level

Austin

More information about location

201-500 employees

B2BEnterpriseSaaSAPITelecommunicationsCloud Computing

Company mission

To solve real-world problems, modernize the antiquated and automate the manual.

Job

Company

Role

Who you are

Degree in Computer Science, Information Technology, or equivalent work experience
4+ years of experience with Java and its ecosystem of tooling
Experience with at least one of these databases: Cassandra, ClickHouse, or OpenSearch
Experience with AI tooling, or a strong willingness to learn

Desirable

Experience with Scala or another functional programming language
Experience with Linux, Git, and Docker in a CI environment
Experience with distributed systems and systems that maintain "five nines" (99.999%) of uptime

What the job involves

Work on 30+ microservices implemented in Java 11 and Scala that process, aggregate and expose all data our telecommunication and messaging engines generate
Improve performance of our pipeline, we are currently processing 10k messages/sec and keep growing
Architect our services and pipelines so they work with minimum latency in all our locations around the world (U.S., E.U., Australia, South America )
Implement fraud detection processes with machine learning (Spark ML with Kafka)
Deploy services to multi cloud Kubernetes environment in order to achieve 99.999% uptime
Push code to production multiple times a day

Our take

As businesses increasingly look to integrate AI into customer interactions, one major challenge has emerged: the underlying infrastructure isn't build for real-time performance. Many companies rely on a patchwork of providers for voice, messaging, and AI, which can introduce delays, complexity and reliability issues. This becomes especially problematic for use cases like voice assistants or automated calls, where even slight latency can disrupt the experience.

Telnyx offers a full-stack platform that combines telephony, networking and AI infrastructure into a single system. In simple terms, it gives businesses everything they need to build and run real-time, AI-powered voice applications without stitching together multiple vendors. Its platform supports things like AI voice agents, programmable calls and messaging, all designed to work quickly and reliably across global networks.

The company now serves over 14,000 customers, processes millions of API requests daily and operates infrastructure across more than 60 countries. Recent recognition from Frost & Sullivan and partnerships likes it deal with Telarus point to growing enterprise adoption too. And as more businesses move toward AI-driven communications, Telnyx is positioning itself as the underlying infrastructure layer that makes those experiences fast and dependable.

Kirsty

Company Specialist at Welcome to the Jungle

Insights

Top investors

-28% employee growth in 12 months

Glassdoor (3.7)

Trustpilot (3.3)

Company

Funding (1 round)

Sep 2014

$1m

SEED

Total funding: $1m

Company benefits

Flexible, global team: Reaching our full potential means hiring people from all walks of life. Telnyx allows employees to work from home, and we offer in-person options for team members in Amsterdam, Chicago, Dublin and Warsaw
Modern life, modern accommodations: Working in the business of innovation means offering support to our team to help them stay innovative. Telnyx offers unlimited personal time off to help employees recharge
Benefits based on location: With team members across the globe, Telnyx offers competitive perks and benefits based on location. Employees in Ireland, the UK, and the US are eligible for healthcare benefits, and US employees also have access to 401(k) matching

Company HQ

Civic District, Austin, TX

Leadership

David Casem

(Co-Founder & CEO)

Co-founded Telnyx in 2009 and has served as the CEO since.

Ian Reither

(COO)

Prior to joining Telnyx as COO in 2014, Ian spent over 3 years at Trexin Consulting as a Principle Consultant.

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