Staff Engineer

About the role

JustCall is the communication layer for tens of thousands of revenue teams - calls, SMS, and increasingly AI voice agents that talk to customers in real time. We've earned a decade of scale. We've also inherited a decade of architecture: a large PHP/JavaScript surface area, an integrations layer that's hard to extend, and a voice stack built for a pre-LLM world.

What you'll do

• Track A - Voice & Agent Platform Staff Engineer
• Own in your first 6–12 months

What you need

• SQL
• MongoDB
• PHP
• LLMs
• Machine learning
• CI/CD
• Any graduate

Good to have

• JavaScript
• Transcription