Job Description: Senior Founding Mobile Engineer (Flutter)
About Stimuler
Stimuler is a global consumer app for English fluency, built at the intersection of voice AI and mobile. We’ve scaled to 9M+ installs, 100K+ paying users, across 180+ countries, with ~90% of revenue from outside India. We’re backed by Lightspeed, won Google Play’s Best AI App award, and were the only mobile app from India selected for the AWS GenAI Accelerator 2025.
We’re building a rare kind of company from India: global-first, product-led, and deeply technical.
Role Overview
We’re hiring a Senior Founding Mobile Engineer (Flutter) to work directly with our CTO and lead mobile development for our app. This is a high-ownership role: you’ll drive architecture, performance, reliability, and developer velocity, while taking on technically hard problems in real-time voice/AI experiences on mobile.
Prior Flutter experience is a plus. If you’re an exceptional mobile engineer (Android/iOS/React Native) who can pick up Flutter quickly, we would love to talk.
What You’ll Do
- Own the mobile app end-to-end:



architecture, core implementation, release management, and long-term scalability.
- Lead Flutter development: establish patterns, reusable components, code quality standards, and technical roadmap.
- Build and ship voice/AI-first mobile experiences (low latency, streaming, real-time UX constraints).
- Drive performance optimisation: app startup time, memory usage, jank reduction, audio pipeline efficiency, battery/network usage.
- Ensure production-grade reliability: crash monitoring, analytics instrumentation, observability, debugging workflows, and incident response.
- Collaborate closely with the CTO and product/design to translate product goals into robust engineering outcomes.

What We’re Looking For
Must-have
- 5+ years building and shipping production mobile apps at scale (consumer apps preferred).
- Robust fundamentals: data structures, concurrency, networking, performance profiling, debuggin

📌 Senior Mobile Developer (Bengaluru)
🏢 Stimuler
📍 Bengaluru