Staff Backend Engineer — Phone Billing: Scale & Resilience

HighLevel; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

HighLevel is an AI-powered business operating system for agencies, entrepreneurs, and SMBs. With over 2,000 team members across 10+ countries, it's a global, remote-first organization built for speed and ownership.

The Staff Backend Engineer will own the technical health of Phone Billing, lead end-to-end initiatives, and shape scalable systems for billions of monthly events. You will work hands-on with NestJS, Firestore, MongoDB, PostgreSQL and Redis, driving observability, debt reduction, and a

Qualifications

• 8+ years of backend engineering experience with 2+ years in a Staff role.
• Deep expertise in distributed systems, event-driven architectures, and async job processing.
• Proven experience with idempotency, exactly-once semantics, and reconciliation.

Responsibilities

• Lead the technical direction and evolution of Phone Billing, a mission-critical component.
• Drive 1-2 high-impact initiatives end-to-end, from problem definition to rollout.
• Own the end-to-end technical health of Phone Billing, identifying bottlenecks and technical debt.

Skills

Backend engineering

Distributed systems

Event-driven architecture

Async processing

Leadership

Tools

NestJS

Firestore

MongoDB

PostgreSQL

Redis

Job description

HighLevel is an AI-powered business operating system for agencies, entrepreneurs, and SMBs. With over 2,000 team members across 10+ countries, it's a global, remote-first organization built for speed and ownership.

The Staff Backend Engineer will own the technical health of Phone Billing, lead end-to-end initiatives, and shape scalable systems for billions of monthly events. You will work hands-on with NestJS, Firestore, MongoDB, PostgreSQL and Redis, driving observability, debt reduction, and a