Full Stack Engineer

Company Description

Yaper is an innovative platform that transforms credit card usage by helping individuals turn liabilities into assets. Through strategic management of credit cards, Yaper empowers users to generate secondary income streams. With a user-focused approach, Yaper aims to revolutionize personal finance and financial freedom for its growing user base.

Role Description

This is a full-time on-site role for a Full Stack Engineer based in Gurugram. In this role, you will be responsible for both front-end and back-end development, ensuring seamless integration and functionality of Yaper’s platform. You will work on software development tasks, troubleshoot issues, write and test code, and collaborate with cross-functional teams to deliver optimal user experiences. This position requires hands-on involvement in creating responsive and efficient applications that align with our mission to enhance financial literacy and independence.

Role Overview

We’re hiring a Full Stack Engineer  with  2–3 years of experience  to build and scale our next-gen fintech and commerce systems.

You’ll work directly with our founding and product teams to design, develop, and deploy features that impact thousands of users.

Your Responsibilities

• Build and maintain end-to-end features across frontend and backend.
• Develop dynamic and responsive UIs using  React Native (Expo)  and  JavaScript / CSS .
• Architect scalable APIs using  Ruby on Rails .
• Ensure system  stability, reliability, and scalability .
• Integrate  third-party services  (Meta, Google Analytics, WebEngage, Branch, Bedrock, etc.).
• Use  AWS ,  Docker , and  Sentry  for deployment, monitoring, and debugging.
• Collaborate with designers, PMs, and stakeholders for high-speed execution.
• Write  clean, modular, testable code  — and care about the product as much as the code.

Tech Stack

Frontend :  JavaScript, CSS, React Native (Expo)

Backend :  Ruby, Ruby on Rails

Database :  PostgreSQL, ElasticSearch

Hosting :  AWS

Tools & Infra :  GitHub, Sentry, Docker

Integrations :  Meta, Google Analytics, WebEngage, Branch, Bedrock, AI

What We’re Looking For

Personal Skills We Value

Perks & Benefits

Use this HACK to Get Noticed

Want to skip the line? Solve this logic puzzle before applying

Question : What comes next in this sequence?

1, 2, 6, 21, 88, 445,?

Hint :  It’s not just addition or multiplication — look at how each term relates to its position.

How to Apply

Send your resume, GitHub, or project links to  hr@yaper.co

Use  only the correct answer  to the above questions as your  email subject line  — nothing else.