About the Role :

We are seeking a high-calibre Engineering Manager II to lead our Monetisation Platform team. This team is the financial heartbeat of HighLevel, owning the entire billing and reselling architecture. Every transaction - from subscriptions and plans to usage-based charges and auto-recharges - flows through systems this team builds. You will manage the critical reselling and rebilling layer that allows our 2M+ businesses to mark up and resell services, ensuring a seamless financial experience for agencies and their clients.

The system processes 160M+ daily events and $4M worth of transactions, requiring extreme operational precision. This is the highest-consequence correctness domain in the company. The platform must be high-throughput, highly available, and demand zero tolerance for inconsistency.

Responsibilities :

- Own architecture and scaling decisions for the monetisation platform - ledger and wallet design, subscription and plan management, usage rating, auto-recharge, payment provider integrations, invoicing, and the reselling/rebilling layer.

- Guarantee financial correctness as a system property : double-entry ledger integrity, idempotency across every write path, exactly-once handling of usage events, and automated reconciliation with providers and downstream channels.

- Own the fraud, abuse and spend-control layer - velocity and anomaly detection, spend caps and circuit breakers, decline-code classification and retry policy, and the gating that protects both HighLevel and its customers from runaway spend.

- Work hands-on with technologies like NestJS, Firestore, MongoDB, PostgreSQL, Redis, Queuing Systems, Data Warehousing Systems and Service Mesh-based microservices.

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

- Drive observability and resilience by evolving our monitoring, alerting (Prometheus/Grafana), and incident response strategies.

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

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

- Lead and develop engineering managers and/or 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.

Requirements :

- 9+ years of backend engineering experience with min 2+ years of leadership experience, including designing fault-tolerant systems and working on high-scale platforms.

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

- Demonstrated ownership of systems with strict consistency and correctness requirements - billing, payments, ledgers, metering, or comparable transactional domains.

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

- Strong experience with relational and NoSQL data models.

- Experience leading and earning the trust of a team of experienced senior engineers.

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

- Excellent communication and cross-functional collaboration skills.

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