About HighLevel:
HighLevel is an AI powered, all-in-one white-label sales & marketing platform that empowers agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, comprised of agencies, consultants, and businesses of all sizes and industries. HighLevel empowers users with all the tools needed to capture, nurture, and close new leads into repeat customers. As of mid 2025, HighLevel processes over 4 billion API hits and handles more than 2.5 billion message events every day. Our platform manages over 470 terabytes of data distributed across five databases, operates with a network of over 250 microservices, and supports over 1 million hostnames.
Our People
With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.
Our Impact
As of mid 2025, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve each month. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.
About the Role:
We are building a highly scalable Calendar & Integrations Platform that enables seamless scheduling, real-time event synchronisation, and extensible third-party integrations through a plugin-based architecture. As a Staff Engineer, you will lead the design and evolution of our core sync engine, event models, and integrations runtime - ensuring reliability, consistency, and performance across distributed systems.
You will work on complex engineering challenges involving multi-tenant architectures, event standards, large-scale API interactions, recurrence handling, and intelligent sync pipelines. You will also shape the technical direction for our integrations marketplace, mentor engineers, and partner closely with platform, scheduling, AI, and infra teams to build a highly extensible and developer-friendly ecosystem.
This role is ideal for someone who has deep experience with distributed systems, standards-based event modeling, multi-provider integrations, or large-scale scheduling infrastructure.