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Backend Developer (mobile app)

ELMA - Emotional Life Management Assistantamritsar, punjab, in

4 days ago

Job description

Hiring : Senior Backend Engineer (Immediate Joining – Contract → Full-Time)

Company : ELMA - India’s 1st Emotional Life Management Ai Assistant

Location : Remote (India-based, IST hours)

Engagement : Full-time, starting as a short contract → transitions to full-time role upon successful MVP delivery

Tech Stack (Core Requirement)

We are looking for a backend-first engineer who is very strong with :

Node.js
Express.js or Nest.js
MongoDB
REST API design (clean, versioned, documented)
JWT-based Auth
AuthN & AuthZ best practices (role-based access, permissions, secure sessions)

Nice-to-have (strong plus) :

Firebase (Firestore, Firebase Auth, Cloud Functions, Security Rules)

Experience integrating backends with React Native mobile apps

Experience working with sensitive user data (health / fintech / edtech)

Role Overview

You will be responsible for owning and building the backend of our MVP :

Architecting and implementing secure, scalable backend services

Designing database schemas and business logic for logging, tracking, streaks, and achievements

Implementing secure authentication & authorization flows

Exposing clear REST APIs for our React Native frontend team

Ensuring data security, privacy, and clean error handling

This is a hands-on role for someone who is comfortable taking full ownership and shipping fast.

Key Responsibilities

Design and implement backend architecture using Node.js + Express / Nest + MongoDB

Implement robust AuthN / AuthZ using JWT and role-based access control

Build and document REST APIs for :

user onboarding

logging & retrieving metrics

streaks, badges, and achievements

other core modules as defined

Design database schemas with scalability and analytics in mind

Collaborate closely with the frontend team to integrate APIs smoothly

Ensure data protection, validation, and secure access at all layers

Set up logging, basic monitoring, and error-handling patterns

Required Experience

Please apply only if :

You have 3+ years of strong backend experience (Node.js ecosystem)

You have built and deployed production-ready backend systems (not just hobby apps)

You are confident with :

designing schemas

writing secure APIs

handling auth & roles

debugging production issues

You can explain your architecture decisions clearly

You can join immediately (no long notice period / no parallel full-time job)

Bonus Points (Nice to Have)

Prior experience with Firebase (Firestore, Auth, Cloud Functions)

Experience with mobile app backends (React Native, Flutter, etc.)

Worked on apps involving user data privacy, mental health, health-tech, fintech, or ed-tech

Comfortable working directly with founders in a fast-moving startup

Engagement Model & Timeline

Initial engagement : short-term contract focused on delivering the MVP backend in ~3 weeks (full-time).

Payment : fixed for the MVP phase (discussed privately), tied to successful delivery of agreed backend scope.

On successful MVP delivery and mutual fit, you will be transitioned into a full-time role with a revised salary package and full ownership of the backend.

📩 How to ApplySend the

following to ydk@elma.ltd :

1. Updated CV / LinkedIn profile

2. GitHub / portfolio / links to apps or APIs you’ve built

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Mobile App Developer • amritsar, punjab, in

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