Backend Engineer

ZillOut Social Pvt Ltd.; India; Remote; INR 420,000 - 760,000; Full time

Job summary

ZillOut Social Pvt Ltd. is hiring a backend engineer to build the platform used by venues and organizers for entry, ticketing, reservations, ordering and payments. The role focuses on creating robust REST APIs, designing efficient database schemas and ensuring money flows are accurate across bills, taxes, discounts and refunds.

A fresh graduate or 0–2 years of experience is welcome. This is a remote, full-time role with a fast-paced, restaurant- and nightlife-focused product.

Qualifications

• Solid Java fundamentals and object-oriented design.
• Experience building REST APIs with Spring Boot (internships/projects count).
• Strong SQL skills with PostgreSQL or MySQL.
• Good understanding of HTTP, JSON, and authentication flows.
• Proficient with Git and code collaboration.

Responsibilities

• Build and maintain REST APIs in Java and Spring Boot for merchant, partner and customer apps.
• Design PostgreSQL tables and optimize queries for high-traffic nights.
• Work on money flows: bills, taxes, discounts, online payments and refunds.
• Build integrations: WhatsApp messaging, payment gateways, delivery platforms and printers for KOTs and bills.
• Push live order updates via WebSockets and handle background processing with queues.
• Debug production issues from logs and monitoring, then ship fixes.
• Collaborate on API contracts with frontend engineers and make small frontend changes when needed.

Skills

Java fundamentals

Spring Boot REST API

SQL / PostgreSQL

HTTP / JSON

Git

Debugging

Tools

PostgreSQL

MySQL

WebSockets

RabbitMQ

Kafka

Job description

ZillOut builds the operating layer behind how India goes out: nightlife, dining and live events, where real money moves every minute.

Clubs, cafés, sundowners and concerts run on one system: POS and ordering, entry and the digital cover, ticketing and reservations. Venues and organizers use it to run tighter operations, stop revenue leaks and understand their guests.

We're hiring a backend engineer to build the platform venues and organizers run on: entry, ticketing, reservations, ordering, and payments. Strong fundamentals matter more than years of experience, and frontend skills are a plus.

Experience: 0–2 years

Employment: Full-time

Location: Remote

What you'll work on

You'll ship backend features that venue staff, organizers and guests use the same week.

• Build and maintain REST APIs in Java and Spring Boot for our merchant, partner and customer apps
• Design PostgreSQL tables and keep queries fast on a busy Friday night
• Work on money flows (bills, taxes, discounts, online payments and refunds), where every rupee has to add up
• Build integrations: WhatsApp messaging, payment gateways, delivery platforms and thermal printers for KOTs and bills
• Push live order updates over WebSockets and run background work through message queues
• Debug production issues from logs and monitoring, then ship the fix
• Agree on API contracts with frontend engineers, and make the small React change yourself when a feature needs both ends

What we're looking for

Experience is not a hard filter. A fresher with solid projects or internships is as welcome as someone with 1–2 years in a job.

• Good Java fundamentals: OOP, collections, exceptions and the basics of threads
• Has built a REST API with Spring Boot (an internship, college or personal project all count)
• Comfortable with SQL: joins, indexes and transactions; PostgreSQL or MySQL
• Understands HTTP: methods, status codes, JSON and how login sessions or tokens work
• Uses Git every day: branches, pull requests and fixing merge conflicts
• Reads unfamiliar code, debugs step by step and asks when stuck
• Cares about getting it right: bills and payments are full of edge cases

Good to have

Frontend knowledge is the biggest plus. Engineers here often ship an API and the screen that uses it.

• React: hooks, fetching data from APIs and forms; TypeScript or a component library like Chakra UI or MUI
• JPA / Hibernate, Spring Security, JWT
• Message queues (RabbitMQ or Kafka) and WebSockets
• A side project that is live, or anything real people have used
• An interest in restaurants, nightlife, or events
• What you build goes live at real venues within a sprint
• Small team: you own features end to end, from the table design to the screen
• Learn backend, frontend, mobile and infra in one place
• Work directly with the founders and see your work change how venues run