Engineering Manager II - Whatsapp

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: We are seeking a visionary Engineering Manager to spearhead our WhatsApp Team — the engine behind one of HighLevel’s most explosive growth stories. For our rapidly expanding global customer base, this isn’t just a feature; it is their lifeline and primary gateway for engaging with their own customers at scale. This team architecturally owns the entire WhatsApp ecosystem: frictionless onboarding, complex WABA management, template lifecycles, high-throughput message delivery, and the sophisticated usage metering that powers our monetization. Operating at the intersection of our product ambitions and Meta’s global business platform, you will navigate a high-stakes environment where roadmap velocity meets the technical rigor of massive-scale API integrations. external platform's rate limits, policy changes and API deprecations as by our own product ambitions. With adoption outpacing original architecture, your mission is pure-play core engineering: re-architecting for the next order of magnitude. You will solve for extreme deliverability under bursty load, resilient webhook ingestion, and ironclad tenant isolation. Leading a world-class team of 8+ engineers , you will own the technical destiny of a product that is scaling faster than the market, partnering with cross-functional leaders to ensure reliability never flinches in the face of hyper-growth.

Responsibilities: Architect for massive scale : Own the high-level architecture and scaling decisions for core Phone platform components, including CPaaS abstractions, provider adapters, and shared messaging/voice APIs that support billions of monthly events. Own Phone Billing end to end : usage metering, rating, reserve/commit lifecycle, idempotency, reconciliation, and audit trails for the Phone and WhatsApp channels - with zero tolerance for double-charging or lost usage Lead the evolution of Trust & Compliance systems into a configuration-driven, rules-based platform that adapts to new regulatory and carrier requirements without invasive engineering change Work hands-on with technologies like NestJS, Firestore, MongoDB, PostgreSQL, Redis, Queuing Systems, Data Warehousing Systems and Service Mesh-based microservices Drive high-concurrency innovation : Lead the design and execution of cross-cutting initiatives to improve reliability, latency, a