Senior Software Engineer, Telnyx
Python
Full-stack platform for real-time conversational AI
Be an early applicant
Full-stack platform for real-time conversational AI
201-500 employees
Be an early applicant
201-500 employees
Company mission
To solve real-world problems, modernize the antiquated and automate the manual.
Role
Who you are
- 5+ years of Python experience with strong async programming (aiohttp, asyncpg, FastAPI)
- Airflow production experience — you've built and maintained complex DAGs, not just run them
- SQL fluency across PostgreSQL and analytical databases (Athena, BigQuery, or similar)
- Comfort working with financial and pricing data (margins, markups, cost basis, currency)
- Ability to read and debug Java services when needed
- CI/CD experience with Docker, Jenkins, or GitHub Actions
Desirable
- Go experience
- Telecom or CPaaS background (CDRs, termination rates, origination prefixes)
- Salesforce or CRM integration experience
- Experience with pricing engines or billing systems
- AI coding agent experience — the team uses AI-assisted tooling heavily
What the job involves
- We are looking for a Senior Engineer to join the Pricing, Costs & Routing (PCR) squad. You will own the automation and data pipelines that power pricing, billing, and financial reporting across Telnyx's product portfolio — voice, messaging, wireless, and more
- This is a backend-heavy role working with Airflow DAGs, rate deck management, cost analysis, and pricing APIs at scale
- Own and maintain complex Airflow DAGs for pricing automation, margin reporting, and cost analysis
- Build and manage rate deck pipelines across multiple product lines
- Develop and maintain pricing APIs and services in Python (async)
- Analyze CDR/MDR data to identify vendor discrepancies and drive refund/reconciliation workflows
- Build automated discrepancy resolution and self-healing pipelines
- Create and maintain financial reporting: monthly margin reports, negative margin alerts, GP calculations
- Design and build new automation for quoting workflows
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
-28% employee growth in 12 months
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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