Fullstack Developer- Internship

GreedyGame Media Pvt. Ltd.; Bengaluru; Hybrid; INR 201,000 - 335,000; Full time

Job summary

GreedyGame / PubScale in Bengaluru is seeking a Fullstack Engineer Intern to work on backend and frontend tasks, shipping features end to end.

You will build backend services with Go, develop React dashboards, and handle large datasets, while collaborating with senior engineers and product managers.

This internship offers direct mentorship, exposure to ad-tech scale, and opportunities to own meaningful pieces of the product.

Qualifications

• 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.

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 publishers and internal teams for ad unit management, monitoring, and workflows.
• Work with large datasets of 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.

Skills

Go

React

SQL

MongoDB

APIs

Data structures

Tools

ClickHouse

BigQuery

Job description

Fullstack Engineer Intern

• Experience: 0 - 1 Years
• Company: GreedyGame / PubScale
• Team: Tech
• Location: Bengaluru Type: Internship

About GreedyGame / PubScale
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. Our products span native and immersive ad formats, mediation, user acquisition (GROW), and offerwalls.

What You'll Do

• Build and maintain backend services that integrate with Google Ad Manager (GAM) andmultiple third-party ad networks
• Develop frontend features and dashboards in React used by both publishers and internalteams 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 shipfeatures end to end
• Debug and optimize existing systems for performance and reliability at scale

Must-Haves

• 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

Good to Have

• Experience with ClickHouse or BigQuery for large-scale data querying/analytics
• Freelance project experience
• Prior experience working at a startup
• Experience building MCP (Model Context Protocol) servers

Why Join Us

• 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 ofthe 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 APIintegrations

Note for the candidate: We value curiosity over perfection. If you love building entire systems from the ground up and are ready to dive deep into the world of ad-tech tooling, we want to hear from you.