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Lead Backend Engineer - NestJS

Antal International IndiaIndia

30+ days ago

Job description

About the Role :

Were looking for a Lead Engineer to join our Calendar Platform Builder Team, which is building the foundational infrastructure for the next generation of scheduling systems.

This team is on a mission to enable businesses and developers to build flexible booking workflows across diverse industries from salons and fitness centres to healthcare, education, sales, and rentals. We believe in Configuration over Code empowering builders to define their scheduling logic, rules, workflows, and availability models without rewriting core logic.

As a Lead Engineer, youll help architect and evolve this highly extensible platform. Youll drive cross-cutting initiatives, mentor engineers, and build backend components that other teams, partners, and customers rely on to build sophisticated scheduling systems on top of our infrastructure.

Requirements :

6+ years of backend engineering experience, with at least 2 years in technical leadership roles
Deep experience designing platforms, frameworks, or extensible APIs used by other developers
Hands-on expertise in distributed systems, asynchronous processing, and scalable microservices
Experience balancing developer flexibility with system guardrails strong grasp of "configuration over code" and platform product thinking
Strong system design, data modeling, and observability practices especially in performance-sensitive, high-throughput environments
Comfortable making architectural trade-offs and driving technical direction in ambiguous spaces

Responsibilities :

Lead the design and development of core platform primitives availability resolution, appointment lifecycles, time zone handling, and state-driven workflows

Architect a system that prioritizes configuration-driven behavior over hardcoded logic, enabling dynamic rule-based booking flows

Build scalable, composable services using NestJS, Redis, Firestore, MongoDB, PostgreSQL, and GCP services like Cloud Tasks, Scheduler, and Pub / Sub

Partner with product managers to translate industry-agnostic scheduling needs into developer-facing building blocks

Drive platform-wide consistency in API design, configuration modeling, error handling, and extensibility

Collaborate across engineering teams to ensure platform reliability, observability (Grafana / Prometheus), and maintainability

Mentor engineers and foster a strong culture of platform thinking, technical excellence, and high ownership

Bonus Points :

Experience building or integrating with calendar APIs, scheduling tools, or booking platforms

Familiarity with recurrence rules (RRULE), slot generation, conflict resolution, and multi-provider calendar sync

Passion for enabling others be it developers, partners, or other internal teams to build great things on top of your systems

(ref : hirist.tech)

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Lead Backend Engineer • India