Build backend services, frontend dashboards, and integrate ad-tech APIs in a fast-paced ad-tech startup.

About the Company

GreedyGame (PubScale) is a Bengaluru-based, Google Certified Publishing Partner building an all-in-one platform for app growth and monetization, trusted by 1500+ publishers and advertisers worldwide. Their products span native and immersive ad formats, mediation, user acquisition (GROW), and offerwalls.

Role Overview

GreedyGame is looking for a Fullstack Engineer Intern to join their Tech team in Bengaluru. This hybrid role offers a unique opportunity to work on live ad-tech products that handle real traffic, impressions, and revenue. As an intern, you will build and maintain backend services, develop frontend features, integrate with external APIs, and work with large datasets. You will also collaborate closely with senior engineers and product managers, gaining hands-on experience in a fast-paced startup environment. The ideal candidate has 0–1 years of experience, a builder’s mindset, and proficiency in Go and React.

Key Responsibilities

• Build and maintain backend services that integrate with Google Ad Manager (GAM) and multiple third-party ad networks
• Develop frontend features and dashboards in React used by both publishers and internal teams for tasks like ad unit management, monitoring, and operational workflows
• Work with large datasets – ad traffic, impressions, and performance metrics – to support reporting and optimization
• Integrate with external APIs (ad networks, mediation platforms, data providers)
• Collaborate with senior engineers and product managers to design, build, test, and ship features end to end
• Debug and optimize existing systems for performance and reliability at scale

Tech Stack

• Programming Languages: Go (Golang), JavaScript (React.js)
• Frontend: React.js, HTML, CSS
• Backend: Go (Golang)
• Databases: MySQL, PostgreSQL, MongoDB
• Data & Analytics: ClickHouse, BigQuery (good to have)
• Other: Google Ad Manager (GAM) integration, external API integrations, MCP (Model Context Protocol) servers (good to have)

Salary & Benefits

• Competitive stipend commensurate with skills and experience
• Direct mentorship from experienced engineers
• Exposure to high-scale ad-tech systems
• Hands-on experience with production-grade code

Proficiency in Go for backend development, working knowledge of React for frontend development, experience with relational databases (MySQL or PostgreSQL) and MongoDB, solid understanding of data structures, algorithms, and API design fundamentals, a builder's mindset comfortable navigating ambiguity and shipping in a fast-moving environment

Work on a product that handles massive scale real ad traffic, real publishers, real revenue impact. Direct mentorship from experienced engineers, with ownership over meaningful pieces of the product. A fast-paced adtech startup environment where your code ships to production, not just a sandbox. Exposure to the intersection of ad tech, large-scale data systems, and external API integrations.