At Quiet we’re on a mission to revolutionize the mobile app landscape. We are a fast-growing start-up and leading publishing house based in Paris. Previously experts in mobile games, we’ve shifted our focus to consumer apps, where we acquire, publish, and scale innovative apps to reach the top charts.

Job Description

• Team management: lead the developers team, team's growth and the delivery.
• Ownership of your scope: monitor analytics, crashes, and performance; ensure quality, scalability, and maintainability.
• Technical leadership across apps: act as the go-to reference for our iOS, backend (and optionally Android) stack, integration (adjust, amplitude, adapy, firebase etc)
• Event integration: design and integration of normalized set of events as efficience as possible
• A/B Testing & Growth: design, monitor, and analyze experiments to improve conversion, retention, and revenue.
• Roadmap & Ideation: actively contribute to roadmap creation, identifying the right tradeoffs and bringing ideas from both a product and engineering perspective.
• Platform Development: contribute to the creation and improvement of shared components and abstractions (navigation, deeplinks, performance tracing, internal tooling, reusable libraries) to increase the velocity and quality of the entire dev team.
• Knowledge Sharing: stay up to date with best practices and trends, attend conferences, participate in communities, and share your learnings internally.
• AI & Automation: explore and implement AI-driven workflows and automation to improve efficiency and product value.
• Long-term vision: structure Quiet’s technical strategy

Tech stack & environment

Mobile

• iOS (Swift, Fastlane)
• Firebase (Auth, Remote Config, A/B Testing, Crashlytics)
• (Android / Kotlin is a strong plus, but not mandatory)

Backend & Infra (TBD)

• Node.js, Python, Supabase, GCP

Data & Growth

• Amplitude (expert-level required)
• Adapty (in-app monetization)
• Adjust (attribution & UA)

Tooling & Monitoring (TBD)

• GitHub Actions, Sentry, Datadog

Requirements, Skills, and Soft Skills

• 5+ years of experience in native mobile development (Swift mandatory, Kotlin Foundation).
• Strong foundations in system-level concepts (memory, performance, multithreading, architecture).
• Very comfortable with Amplitude and data/growth tooling.
• Hands-on experience running A/B tests and data-driven optimization.
• Expert of mobile integration challenges (Adjust, Adapty, Firebase, Stores, Amplitude etc).
• Natural leadership: you’ve mentored or challenged devs before and are ready to step up.
• Strong interest in AI and automation, ideally with real examples of improving workflows through them.
• Professional English (our apps are international).

Application:

Please send your full application with the thread “Lead Dev” to [email protected] .