IMPORTANT — This is an unpaid Co-Founder opportunity. No salary will be paid. Full-Stack Developer - Kolkata Candidates Only 5–10 Years Experience Mandatory ( must read job description )

About the job

Greater Kolkata Area (On-site)

Role

We are looking for a highly experienced Co-Founder / CTO (Full-Stack Developer) to take complete ownership of the company's technology and product development.

Key Responsibilities

Lead end-to-end technology development

Design and build scalable frontend & backend systems

Develop and maintain APIs, databases and cloud infrastructure

Architect the complete technology stack

Build secure, scalable and production-ready applications

Manage technical strategy and future technology roadmap

Lead and build the technology team

Handle deployment, security, performance and system reliability

Work closely with the founders on product and business strategy

Requirements

5–10 years of professional experience is mandatory

Strong full-stack development expertise

Proven experience building and scaling real-world products

Strong knowledge of frontend, backend, databases, APIs and system architecture

Strong startup mindset with ownership and execution ability

Must be based in Kolkata or willing to work on-site in Greater Kolkata

Compensation

This is a Co-Founder opportunity and NOT a salaried employment position.

No fixed salary will be paid.

The selected candidate will receive an equity/ opportunity, with financial compensation to be introduced as the business reaches sustainable revenue.

Important

This opportunity is specifically for someone who wants to build a company as a Co-Founder, take long-term ownership, and grow with the business.

We are looking for someone who is genuinely passionate about startups, technology, innovation and building something from the ground up.

This is NOT suitable for candidates looking for a conventional salaried job or immediate monthly income.

Only Apply If You:

Are genuinely passionate about building a startup

Want to build and scale a product from the ground up

Are willing to contribute without a fixed salary

Have a strong ownership and entrepreneurial mindset

Want a genuine Co-Founder-level opportunity

Are committed to building for the long term

Please do not apply if you require a fixed salary from the beginning.

Location: Greater Kolkata Area

Work Mode: On-site

Position: Co-Founder / CTO

Experience: 5–10 Years Mandatory