Location: Vashi, Navi Mumbai (On-site)
Duration: 6 Months (Full-time opportunity based on performance)
Start Date: Immediate

About Grexa AI
Grexa AI is a venture-backed startup on a mission to build the world’s first Marketing AI Platform for small businesses - a fully autonomous system that drives Real Revenue by automating and optimizing digital marketing.
Founded by 4 seasoned IIT alumni and former Testbook Founders / CXOs (scaled to $30Mn ARR business with 1,000+ employees, successfully acquired by a leading edtech company), the team brings deep product expertise, execution speed, and a track record of building at scale.
We’re funded, building fast, and assembling a high-performing team to disrupt global digital marketing space from India. If you’re excited to solve real problems and build transformative AI products - this is your calling.

What We’re Looking For – Role Brief
We’re hiring an Founder’s Office Trainee to work directly with the CEO on high-priority initiatives across departments - from strategy and operations to sales and growth.
This is not your average internship. It’s a battlefield role for someone who wants to understand the real mechanics of building a startup fast, hands-on, and from the frontlines. You’ll act as an extension of the CEO’s office, supporting critical projects, unblocking bottlenecks, and bringing order and momentum to high-stakes initiatives.

If you've ever dreamed of sitting in the driver’s seat of a startup this is your seat.

What You’ll Do
  • Work directly with the CEO on strategic and operational initiatives across teams
  • Be the go-to execution partner on projects related to sales, hiring, marketing, partnerships, and operations
  • Prepare research, pitch decks, performance dashboards, and internal documentation for cross-functional decision-making
  • Help drive execution of high-priority projects, solving problems in real time and coordinating across functions
  • Get exposed to everything from company building and market strategy to culture creation
  • Think critically, adapt quickly, and wear multiple hats every day

What We’re Looking For
  • Preferably a management/business graduate or student from engineering background with a keen interest in entrepreneurship and startups
  • A natural problem solver able to think critically, assess trade-offs, and suggest practical solutions
  • Strong execution skills with a bias for action you get things done, fast
  • Excellent communication, research, and stakeholder coordination abilities
  • Highly street-smart, resourceful, and comfortable operating in ambiguity
  • A high sense of ownership, strong work ethic, and willingness to go the extra mile
  • MUST be available to work full-time from our office in Vashi, Navi Mumbai

Why This Role Is Special
  • Work directly with the Founder - a seasoned entrepreneur who built Testbook from the ground up, scaling it to 25Mn+ monthly active users, and $30Mn+ ARR, ultimately leading to a successful exit.
  • Get an eagle-eye view of the company, learning how decisions are made at the top
  • Be part of the founding core of one of the most promising AI startups in the country
  • Learn 10x more in 6 months than most roles will teach you in years
  • Strong performance can lead to a full-time role with high ownership and fast growth

Why Join Grexa AI?
  • Work with proven founders and operators IITians, serial entrepreneurs, and startup veterans
  • Learn by doing, in an environment that rewards hustle, curiosity, and impact
  • Be part of the 0→1 journey where your work actually moves the needle
  • Have access to some of the most critical and strategic conversations inside a high-growth startup
  • Office based in Vashi, with a close-knit, no-politics, high-performance culture