Lead Engineer - Reselling

Additional Information EEO StatementThe company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government record keeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision. Compensation About Us 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 15 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 domain names. 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’re looking for a Lead Engineer with deep expertise in Node.js , MongoDB , and a modern front-end framework , paired with a bold vision for AI-assisted development .If you’ve architected complex systems with mission-critical APIs , handled millisecond-level latency at scale , and pushed the boundaries of how AI can empower engineers—this role is for you.You ’ll join our Reselling Team , the team behind our core payment solutions that power almost every add-on transaction across HighLevel. You'll lead the end-to-end development of new features, own key architectural decisions, and drive innovation where AI meets software engineering, ensuring the code we generate is not just fast, but accurate , reliable , and production-ready .This is a high-impact, hands-on role currently contributing to ~$20M ARR across 5+ products and is the default engine for all subscription products at Highlevel. You’ll play a major role in shaping how we use AI to speed up development across the entire stack—and deliver real value to businesses at scale. Responsibilities - Lead the design and development of scalable, high-performance web applications using Node.js, MongoDB, and a modern front-end framework. - Own features end-to-end —from architecture and implementation to testing, deployment, and optimization. - Architect and maintain modular, pluggable components that can be reused across the platform. - Drive technical decision-making across the product and the platform, ensuring stability, scalability, and maintainability. - Integrate and optimize AI-assisted development tools , enhancing reliability, minimizing hallucinations, and improving developer productivity. - Collaborate closely with cross-functional teams including Product, Design, and AI Research to deliver impactful features. - Mentor and support fellow engineers , contributing to a culture of technical excellence and continuous improvement.Proactively identify and resolve performance, scalability, and security issues. Requirements - 6+ years of Expert-level proficiency in Node.js and MongoDB , with a strong understanding of backend architecture and performance optimization. - Solid experience with modern front-end frameworks (e.g., React, Vue, Angular) and building full-stack web applications. - Experienced in integrating and scaling payment gateway solutions.Proven track record of architecting complex systems and shipping scalable, high-performance web apps in production. - Experience building modular, pluggable UI components or widgets for reuse across applications. - Strong understanding of software design patterns, API design, and microservices architecture. - Familiarity with AI-assisted development tools and a passion for pushing the boundaries of AI in the software engineering lifecycle. - Ability to guide technical architecture , make high-impact decisions, and mentor other engineers. - Experience with code quality, testing, deployment pipelines , and optimizing dev workflows.Excellent problem-solving, communication, and collaboration skills.