$50–90/hr
The role in one line
Staff-level mobile engineer building Android apps with full-stack contributions on enterprise platforms using AI-assisted development.
Written by Training Turk from the public listing; it may be incomplete or out of date. Read the full posting on Mercor.
What you would do
- Ship features for native Android applications in Kotlin, handling UI, state management, and device-specific challenges.
- Extend work beyond mobile into backend services, APIs, and web applications as team needs require.
- Use AI coding tools daily to accelerate development, understand unfamiliar code, and maintain consistent quality.
- Participate in technical design decisions and conduct code reviews that shape the team's engineering standards.
Who they are looking for
- 4+ years of professional software engineering with hands-on native mobile experience, preferably Android and Kotlin.
- Demonstrated proficiency with Jetpack or equivalent modern mobile frameworks, plus some backend or API exposure.
- Comfort using AI coding assistants in daily workflow and strong debugging and testing fundamentals.
- Full-time availability, 40 hours per week weekdays, with clear communication and collaborative problem-solving approach.
- Exposure to LLM-powered features, accessibility standards, or payment systems valued but not required.
Skills this role asks for
What the interview is likely to probe
1.Kotlin native development
Staff engineers must build robust mobile features end-to-end; interviewers assess depth with platform specifics, architecture decisions, and real production constraints.
Expect something like: “Your team's Android app is consuming too much battery during background sync. Walk through your diagnostic approach and how you'd restructure the sync logic using Kotlin coroutines.”
2.Cross-stack integration
Full-stack capability distinguishes staff roles; interviewers explore whether candidates understand service design, API contracts, and debugging across layers.
Expect something like: “A backend team changed an API response format without deprecation. How would you detect this in production monitoring and coordinate with them on a safe rollout strategy?”
3.AI-assisted development workflow
Daily tool use requires sound judgment about when to accept suggestions and when to refactor; poor integration slows teams or introduces subtle bugs.
Expect something like: “GitHub Copilot generated three different solutions for parsing a complex proto message. What criteria would you use to pick one, and what additional tests would you add?”
4.Technical design and code review
At staff level, code review is a leadership tool; interviewers check whether candidates elevate team quality and help junior developers grow.
Expect something like: “A junior engineer proposed caching user session tokens in SharedPreferences without encryption. What security concerns would you raise, and how would you guide them toward a better solution?”
5.Production debugging under pressure
Staff roles own production support; ability to quickly isolate root cause and communicate findings across teams separates experienced engineers.
Expect something like: “Users report random crashes on Android 12 devices at 2 AM with limited crash data available. You have until the 6 AM review. How would you prioritize your investigation steps?”
How to prepare
- Review Jetpack architecture components including ViewModel, LiveData, Room, and their testing patterns.
- Practice debugging common Android issues using Android Studio profiler and logcat filtering techniques.
- Prepare examples of recent features you shipped end-to-end, including any backend changes involved.
- Research the company's published API documentation to discuss integration points and design patterns intelligently.
Facts
- Pay
- $50–90/hr
- Commitment
- full-time
- Hours
- 40 per week
- Work arrangement
- remote · United States
- Eligible locations
- USA
- Domain
- Software Engineering
- Posted
- 9/22/2026
- Open slots
- 20