Engineering Manager II - Phone Core

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EngineeringEngineering Manager

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Quick Summary

Requirements Summary

Lead the design and execution of cross-cutting initiatives to improve reliability, latency, and throughput across time-sensitive APIs and workflows serving millions of businesses.

Technical Tools

EngineeringEngineering Manager

About HighLevel:
HighLevel is an AI-powered business operating system that gives agencies, entrepreneurs and SMBs the infrastructure to build, automate and scale. Today, HighLevel supports SMBs across 150+ countries, fueling community-driven growth rooted in real customer outcomes.
To date, businesses operating on HighLevel have generated over $7 billion in ecosystem value, demonstrating the impact of shared infrastructure at scale. By centralizing conversations, automation and intelligence into one system, we help businesses move faster, reduce complexity and execute efficiently.
Behind the platform, HighLevel powers more than 4 billion API hits and 2.5 billion message events daily. With 250 terabytes of distributed data, 250+ microservices and over 1 million domain names supported, our architecture is built for performance, resilience and long-term scalability.

Our people
With over 2,000 team members across 10+ countries, HighLevel operates as a global, remote-first organization built for speed and ownership. We value initiative, clarity and execution, creating space for ambitious people to build systems that support millions of businesses worldwide. Here, innovation thrives, ideas are celebrated and people come first, no matter where they call home.

Our impact
Every month, HighLevel enables more than 1.5 billion messages, 200 million leads and 20 million conversations for the more than 1 million businesses we support. Behind those numbers are real people building independence, expanding opportunity and creating measurable impact. We’re proud to be a part of that.
Learn more about us on our YouTube Channel or Blog Posts

About the Role

~2 min read

We're looking for an Engineering Manager to lead our Phone Core teams - the mission-critical foundation of HighLevel's communication stack. This group owns the CPaaS platform layer, Phone Billing, Trust & Compliance, and phone number provisioning, serving as the substrate every other channel team builds upon to power a platform processing over 15 billion API hits and 2.5 billion message events daily.

Two of these areas carry outsized leverage. Phone Billing meters and monetises usage for the entire Phone and WhatsApp business - every call, message and number rides through it, so correctness, idempotency and reconciliation are not optional; a rating bug is a revenue and trust incident at the same time. Trust & Compliance is the gate that determines whether customers can send at all: 10DLC and toll-free registration, brand and campaign vetting, carrier filtering, DLT and regional regimes. Regulators and carriers change the rules continuously, so the real engineering problem is designing flexible, rules-driven systems that absorb policy change without a rewrite each time.

The platform handles 100M+ events daily across 15+ services, and LC Phone is a major contributor to HighLevel's revenue where uptime and reliability are paramount. As an Engineering Manager, you'll lead multiple squads (10+ engineers) across these domains, own architecture and delivery for the CPaaS platform layer, and partner with PMs and Staff Engineers to keep a revenue-critical system correct, compliant, and exceptionally fast at a scale few companies ever reach.

Requirements

~2 min read

Develop EM I leaders and senior engineers, build leadership pipeline, succession planning and raise the hiring bar

Participate in design reviews, deep dives, and on-call rotations to support a high-bar culture of accountability and operational excellence

Develop leaders and senior engineers, build leadership pipeline, succession planning and raise the hiring bar

Own multiple teams/products , establish the engineering system , set technical direction, develop leaders

9+ years of backend engineering experience with 2+ years of leadership, with a proven track record of designing fault-tolerant systems that operate at a scale of billions of hits or events.

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, or comparable transactional domains - with a working grasp of idempotency, exactly-once semantics, and reconciliation

Proven experience optimizing availability, performance, and reliability in real-world systems under load

Strong experience with relational and NoSQL data models (especially with complex transactional data)

Experience designing policy- or rules-driven systems that evolve with external requirements rather than hard-coding them

Familiarity with monitoring, SLOs, and root-cause analysis in production environments

Familiarity with hallucination mitigation strategies (e.g., code constraints, test scaffolding, embeddings, context injection)

Excellent communication and cross-functional collaboration skills, including with Finance, Legal and external partners

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

Experience with usage-based billing or metering engines in a high-volume product, specifically managing millions of transactional events per hour.

Exposure to telecom trust and compliance regimes - 10DLC, toll-free verification, TCPA/TSR, DLT, carrier filtering or number portability

Experience building provider-agnostic integration layers across multiple third-party vendors

Experience working with AI Tools, Communication APIs (Twilio, Plivo etc)

Contributions to open-source tools, internal platforms, or engineering blogs

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