About the Role :

We're looking for a Staff Engineer to lead the technical direction and evolution of Phone Billing, one of the most critical components of HighLevel's communication platform. Phone Billing sits at the intersection of product usage, infrastructure, and revenue; it is responsible for accurately metering and monetising usage across LC Phone products, including voice, messages, phone numbers, and other communication services.

Responsibilities :

- Own the end-to-end technical health of Phone Billing; proactively identify architectural bottlenecks, correctness and reliability risks, and technical debt.

- Drive 1-2 high-impact initiatives end-to-end; take ownership from problem definition through architecture, implementation, rollout, and measurement.

- Architect for massive scale : Own the high-level architecture and scaling decisions for core Phone platform components.

- Own Phone Billing end-to-end : usage metering, rating, reserve/commit lifecycle, idempotency, reconciliation, and audit trails.

- Lead the evolution of Revenue Growth into a configuration-driven, rules-based platform.

- Drive high-concurrency innovation to improve reliability, latency, and throughput.

- Drive observability and resilience by evolving monitoring, alerting, and incident response strategies.

- Leverage LLMs and AI tools to write, refactor, test, and debug code efficiently.

- Partner with product, infra, security, finance and legal teams to ensure data integrity, access control, and compliance.

- Develop EM I leaders and senior engineers, build leadership pipeline, and raise the hiring bar.

Tech Stack :

- NestJS, Firestore, MongoDB, PostgreSQL, Redis, queuing systems, data warehousing systems, and service mesh-based microservices.

Requirements :

- 8+ years of backend engineering experience with 2+ years in a Staff role, with a proven track record of designing fault-tolerant systems.

- Deep expertise in distributed systems, event-driven architectures, and asynchronous job processing.

- Demonstrated experience building systems where correctness is non-negotiable (metering, ledgers, billing, payments).

- Strong experience with relational and NoSQL data models.

- Experience designing policy- or rules-driven systems.

- Familiarity with monitoring, SLOs, and root-cause analysis.

- Excellent communication and cross-functional collaboration skills.

- A pragmatic, hands-on leader who balances long-term vision with iterative execution.