Koonei

Full Stack Developer

Koonei

India
mid_level
LinkedIn
full_time
Featured Job
Added 9/17/2025

Job Description

About the Job

Koonei is seeking a Full Stack Developer to join our team. This role is backend focused, but with frontend responsibilities. Collaborate with the product team to build cutting-edge solutions, especially on the backend, and help enhance our ecosystem. You'll gain exposure to new technologies. Grow with us as we scale our products.

Position Overview

As a Full Stack Developer, you will develop the backend architecture and infrastructure for our SaaS products. You'll work on both backend and frontend, collaborating with product and engineering teams to deliver high-performance, scalable solutions. You'll also have the opportunity to work with LLMs (e.g., OpenAI, Claude) and cloud platforms, increasing your skillset.

What You’ll Do

  • Backend Development: Design, implement, and optimize server-side infrastructure using Node.js, Express, MongoDB, and PostgreSQL.
  • Frontend Development: Develop intuitive and responsive user interfaces with React and Next.js.
  • Build and maintain RESTful APIs for communication between the frontend and backend.
  • System Design & Architecture: Collaborate on designing scalable, efficient backend systems and databases.
  • AI Integration: Leverage your understanding of LLMs.
  • Optimize database queries.
  • Continuously improve code quality.
  • Collaborate with product, design, and other teams to understand requirements.
  • Troubleshoot and resolve issues.
  • Learn and adapt to new technologies.

What We’re Looking For

  • 3+ years of experience as a Full Stack Developer with a strong focus on backend development.
  • Proficiency in JavaScript, Node.js, Express, React, and Next.js.
  • Strong experience with MongoDB and PostgreSQL.
  • Solid understanding and hands-on experience building REST APIs.
  • Good knowledge of Data Structures & Algorithms (DSA), system design, and logic-building.
  • Experience working with SaaS ecosystems.
  • Familiarity with LLMs (e.g., OpenAI, Claude).
  • Knowledge of cloud platforms such as AWS (preferred).
  • Strong understanding of software development principles.
  • Strong problem-solving and communication skills.

What You’ll Get

  • Competitive salary.
  • Opportunity to work in a fast-growing SaaS company.
  • A flexible, collaborative work environment.
  • Flexibility in working hours and the possibility of remote work.
  • Professional development and mentorship opportunities.
  • Access to cutting-edge technologies.

Additional Information

Please note: We do not currently have an Indian entity. As such, you will be responsible for managing your own PF, Health Insurance, taxes, etc. Salary will be provided in USD.

Looking forward to seeing what you can bring to our team. Let’s build something amazing together!

About Koonei

About Koonei

Koonei is a product company on a mission: to build a leading portfolio of high-performance subscription brands. Since 2015, we've evolved from e-commerce pioneers to in-house product builders and scalers. We manage significant advertising budgets and generate thousands of transactions monthly.

Our model blends paid media expertise, creative execution, and continuous testing. We launch multiple products each month and scale successful ones. Koonei is a place where ideas thrive, performance creates value, and growth is constant.

What makes us different:

  • We build our own products.
  • Funnels designed for retention.
  • Full control over media, tech, and creative.
  • Multicultural, globally distributed team.

If you're searching for a challenging yet fun career, then Koonei might be the perfect fit for you.

How to Apply

Ready to take the next step in your career? Click the "Apply Now" button to be redirected to the official application portal.

Company Info

Koonei logo

Koonei

Posted on LinkedIn

India

Job Details

Date Added:9/17/2025
Job Type:
full_time
Platform:
LinkedIn
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