We're looking for a Lead Software Engineer with deep expertise in Node.js, MongoDB, and modern frontend frameworks, along with a bold vision for how AI-assisted development can accelerate engineering workflows. You'll join our Snapshots Team, the engine behind how agencies and SaaS creators templatise and clone complete automation systems workflows, funnels, forms, calendars, settings, and more instantly across thousands of client accounts.

Snapshots are now being cloned to over 200,000+ businesses every month, driving rapid onboarding and platform extensibility. The system saves businesses countless hours by replicating complex structures and business processes seamlessly across accounts, making automation scalable, repeatable, and fast. Under the hood, Snapshots tackles engineering challenges like asset graph traversal, dependency resolution, real-time syncing across multi-tenant environments, and copying gigabytes of data across accounts all while managing CPU and memory-intensive operations at scale.

As a Lead Engineer, you'll own architectural decisions and solve deep product platform problems around high-performance snapshot cloning, rollback systems, and version management. You'll collaborate across product, infra, and platform teams while mentoring engineers and driving the long-term roadmap for one of HighLevel's most strategic surface areas. If you enjoy building technically rigorous systems that scale, this team is where your work will have immediate and visible impact.

Responsibilities :

- Lead the design and development of scalable, high-performance systems to improve reliability, latency, and throughput across time-sensitive APIs and workflows.

- Own features end-to-end from architecture and implementation to testing, deployment, and ongoing optimization.

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

- Drive technical direction across both product features and platform layers to ensure stability, scalability, and maintainability.

- Integrate and optimize AI-assisted development tools, improving developer productivity while ensuring accuracy and minimizing hallucinations.

- Collaborate closely with Product, Design, and AI teams to deliver impactful, user-facing features and backend systems.

- Mentor and support other engineers, fostering a culture of technical excellence, learning, and ownership.

- Proactively identify and solve performance bottlenecks, scalability challenges, and security concerns in a multi-tenant environment.

Requirements :

- 7+ years of backend engineering experience, including designing fault-tolerant systems and working on high-scale platforms.

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

- Strong experience with relational and NoSQL data models (especially with complex temporal data).

- Experience with modern front-end frameworks (e. g., React, Vue, Angular) and building full-stack web applications.

- Proven track record of architecting complex systems and delivering scalable, high-performance web apps in production.

- Strong understanding of software design patterns, API design, and microservices architecture in a multi-tenant environment.

- Skilled in guiding technical architecture, making high-impact engineering decisions, and mentoring fellow engineers.

- Experience with code quality practices, automated testing, CI/CD pipelines, and dev tooling optimization.

- Excellent problem-solving skills, with clear and collaborative communication across cross-functional teams.