Senior Software Engineer

zenup health

5-7 Years

Mumbai, India

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Posted 2 months ago
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Job Description

Company Description

Zenup Health is a tech enabled, full stack mental health platform based in Mumbai, providing expert therapy & psychiatric care. We are building a proprietary, high-integrity and robust Booking Engine for mental health services and are looking for a Senior Software Engineer, currently on a Contractual basis, who can create the technical architecture, supervise implementation, and collaborate with internal developers to build a transaction-safe booking system that will later power our web and mobile applications.

Role Description

Design and validate the end-to-end booking infrastructure
Translate complex workflows into a clear SQL-backed state machine
Supervise and review implementation by junior developers / interns
Architect and implement a race-condition-safe booking system
Design row-level locking mechanisms, handle soft-locks, TTLs, zombie lock cleanup, & reconciliation logic
Design a normalized PostgreSQL schema linking
Enforce ACID compliance, transaction safety, and UTC-first scheduling
Build the backend as API-first, ready for web frontend & Future iOS / Android apps

Qualifications

5+ years of professional experience in backend / systems engineering
Currently working as a Senior Software Engineer
Strong PostgreSQL expertise
Proven experience building transactional systems (booking, payments, marketplaces)
Ability to architect a system that scales to 1,000+ bookings/month without admin drift
Absolute mastery of ISO 8601 and UTC-based scheduling logic.
Concurrency Management - Deep understanding of solving race conditions and distributed locks.