Founding Android Engineer – Core Product / Feed (Kotlin)

What is nanogram?

What if TikTok was games instead of videos? That’s Nanogram, a scrollable feed of hypercasual games you play instantly, no downloads, no friction. We raised our seed from Drive Capital, LAUNCHub Ventures, and Inovo, and we’re building the core engineering team in Sofia right now.

This is a foundational role. You’d be the first dedicated Android engineer. Not joining a mobile team, building one. You’ll own the architecture, make the calls that are expensive to change later, and shape how millions of people experience the feed.

What you’ll work on:

• The core scrollable game feed. Buttery-smooth, endlessly scrollable, instant-play
• Native game rendering and lifecycle management within the feed
• Deep integration with our Go backend APIs for feed ranking, user state, and content delivery
• Performance profiling and optimization across the Android device spectrum, from flagships to budget phones
• Push notifications, deep linking, and Play Store distribution

What we’re looking for:

• 3+ years of production Kotlin experience. You’ve shipped and maintained apps that handle real traffic
• You can make architectural decisions independently and defend them. We’ll have opinions, but you’ll have the final call on Android
• Strong Jetpack Compose and/or View system fundamentals. You know when to use which
• Experience with WebView: embedding web content natively, bridging JS and Kotlin, managing lifecycle and performance
• Experience with custom UI like scroll behavior, animations, and gesture handling beyond standard components
• Comfort with networking and caching strategies
• You care about performance. Android Profiler, Systrace, and baseline profiles are part of your workflow, not a last resort
• Bonus: experience with embedded game engines or custom Canvas/OpenGL rendering

Why Nanogram

• Early-stage with real funding and real users. Not a slide deck company
• Tiny team, massive ownership. No layers of middle management between you and impact
• You won’t be implementing someone else’s Android architecture. You’ll be defining it
• Sofia office. We build together, in person
• Competitive compensation discussed during the process

Process

• Apply through dev.bg
• Online interview. Get to know each other, talk through your experience
• In-person technical challenge + interview at our Sofia office

You’ve scrolled this far. Now imagine building the feed that millions scroll. Apply below.