Principal Engineer

Twilio

West Coast, USA
Based in colorado, hawaii, illinois, maryl + , mas...
**
Ai-driven development workflows
Llms and agentic agents
Global scale microservices architecture
** Twilio is seeking a Principal Engineer to lead the Phone Numbers Platform, focusing on innovative, AI-driven development workflows and modernizing the architecture. The role requires extensive experience in designing and developing high-scale cloud-native systems, with a strong emphasis on leadership and technical excellence. **

Job Summary

  • As a Principal Engineer (P5), you will own the technical strategy for a platform that processes millions of requests and pioneer AI-driven development workflows using LLMs and agentic agents.
  • Lead the architecture and long-term technical roadmap for the Phone Numbers Platform, transitioning legacy systems into a modern, distributed microservices architecture that supports global scale.
  • Mentor and uplift senior and staff engineers, fostering a culture of technical curiosity, ownership, and continuous learning.

Matching Summary

Match Score: 75

** Twilio is seeking a Principal Engineer to lead the Phone Numbers Platform, focusing on innovative, AI-driven development workflows and modernizing the architecture. The role requires extensive experience in designing and developing high-scale cloud-native systems, with a strong emphasis on leadership and technical excellence. **

Salary

Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C. : $188,240.00 - $235,300.00; Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $199,280.00 - $249,100.00; Based in the San Francisco Bay area, California: $221,360.00 - $276,700.00; This role may be eligible to participate in Twilio’s equity plan and corporate bonus plan.

Skills & Requirements

Must-have

  • AI-driven development workflows
  • LLMs and agentic agents
  • global scale microservices architecture
  • high scale, secure, mission-critical cloud native enterprise distributed systems
  • Java or Go
  • AWS ecosystems
  • five-nines resilient systems
  • high-volume public-facing APIs
  • high-throughput data processing
  • Kubernetes, Terraform, CI/CD

Nice-to-have

  • telephony protocols
  • local number porting
  • global regulatory compliance frameworks
  • building internal platforms
  • AI agents into developer platforms

Key Requirements

  • 12+ years of experience
  • Expert Proficiency in Java or Go
  • Deep experience with cloud-native infrastructure
  • Demonstrated experience using AI tools
  • Track record of building and maintaining high-volume public-facing APIs
  • Experience with high-throughput data processing and storage solutions
  • Proficiency with Kubernetes, Terraform, and modern CI/CD paradigms
  • Proven ability to influence technical strategy

Work Rights

Not specified

Tailored Resume

Cover Letter