HighLevel - Engineering Manager II
Requirements
• 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 • #LI-Remote #LI-HB1
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, and throughput across time-sensitive APIs and workflows serving millions of businesses. • Drive observability and resilience by evolving our monitoring, alerting (Prometheus/Grafana), and incident response strategies - including the financial invariants that must be alerted on, not just the technical ones • Leverage LLMs and AI tools to write, refactor, test, and debug code efficiently - while implementing guardrails to reduce hallucination and boost reliability • Partner with product, infra, security, finance and legal teams to ensure data integrity, access control, and compliance across phone services • 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
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