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Frontend-First Fullstack Intern

Job Description - Frontend-First Fullstack Intern

About the company




  • GreedyGame, founded in 2013 by Arpit Jain (CEO), is a leading ad-tech company driving app growth and monetization.




  • We’ve built a sustainable, profitable business for over 7 years without chasing vanity metrics. The 0→1 journey is done, and we’re now scaling through the 1→10 phase.




  • As a Google Publishing Partner, we serve 100M+ daily ad impressions and support 5,000+ apps and games worldwide, delivering up to 75% revenue uplift.




  • Trusted by Amazon, Dream11, MPL, Sharechat, Treebo, Mobikwik, and 1000+ publishers across 20+ countries.




The products you’d help build


Pubscale - Monetization, user acquisition, revenue uplift, and business-growth analysis in a single place.


Immersive Ads - Native, non-intrusive ad formats. Smart caching, priority loading, and adaptive refresh deliver better UX and higher monetization without annoying popups.


Offerwall - A reward-based engagement layer that monetizes non-paying users through personalized, high-conversion tasks driving eCPMs up to $1000 in Tier 1 geos and up to 3X more revenue in emerging markets.


AdX & GROW - Monetization via Google Ad Manager and premium demand partners, plus an AI-driven UA engine (GROW) with free credits and optimization support.


What you’ll do




  • Build the React dashboards publishers and internal teams use: ad unit management, monitoring, reporting, and operational workflows.




  • Turn product direction into finished UI: layout, components, and loading, empty, and error states.




  • Own how those screens feel: component structure, state, responsive layout, accessibility, and performance on data-heavy pages.




  • Connect those screens to existing APIs (ad networks, mediation, reporting) and shape the data on the client.




  • Ship a feature from the React screen through the Go service and the MySQL, PostgreSQL, or MongoDB data behind it, working with senior engineers.




  • Debug UI issues and make the product faster and more reliable for the people using it.




What we’re looking for




  • Strong React: components, hooks, and state.




  • Solid HTML, CSS, and JavaScript or TypeScript.




  • Comfortable building tables, filters, charts, and dashboards.




  • Able to read an API and wire it into the UI.




  • Working knowledge of Go for the services behind those screens.




  • Familiarity with MySQL or PostgreSQL, and MongoDB.




  • Care about how a screen looks and behaves.




  • A builder’s mindset in a fast-moving environment.




✨ Bonus points




  • Design systems or component libraries.




  • Dashboard or charting work.




  • ClickHouse or BigQuery.




  • Freelance projects or startup experience.




  • Experience building MCP (Model Context Protocol) servers.




What makes you a great fit




  • You think in screens, flows, and the task a publisher is trying to finish.




  • You write clear React and sweat the details people actually feel.




  • You’re comfortable in Go and the databases the product already uses, and you’ll step into the API when the UI needs something that isn’t there yet.




  • You explain tradeoffs clearly and work well with product and engineering.




  • You like a fast-paced startup and care about the quality of what ships.




Why GreedyGame




  • Work on products used by millions, including Pubscale.




  • Ownership from day one of the screens publishers and internal teams use.




  • A learning stipend for books, courses, and conferences (we love curious minds), plus internal blogs.




  • Comprehensive benefits: health insurance, PTO, parental leave, and more.




  • A high-growth, inclusive, engineering-led culture that supports experimentation and impact.




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