What are the responsibilities and job description for the Senior Founding Mobile Engineer position at Career Mentors, LLC?
Senior Founding Mobile Engineer
Location: New York, NY or Boston, MA (Hybrid preferred; strong remote considered)
Compensation: $200,000 – $250,000 competitive equity
Industry: AI, Healthcare, Consumer Tech
Team Size: ~30 employees
Funding: $35M (top-tier VCs)
Hiring: 1 role
About the Role
Our client is hiring a Senior Founding Mobile Engineer to own and build their mobile product from the ground up. This is a true 0 → 1 role with real scale already in motion. You’ll define the mobile architecture, ship patient-facing features, and set the foundation for a world-class mobile engineering team.
This role is ideal for someone who has built and scaled consumer mobile apps, thrives with ownership, and wants to shape the technical direction of a mission-driven company at a pivotal growth stage.
What We’re Looking For
5 years of mobile development experience for consumer apps
Proven experience taking a mobile app from zero to one at a startup
Experience scaling a consumer app to 10,000 users
Expert-level React Native TypeScript
Experience with native iOS (Swift) and/or Android (Kotlin)
Strong understanding of mobile architecture and infrastructure
Experience at a high-growth consumer tech company
Ability to work independently with high ownership and accountability
No visa sponsorship required (Canada/Mexico candidates may be considered case-by-case)
Nice to Have
Prior founding-engineer or early-stage startup experience
Experience working in regulated environments (healthcare, fintech, etc.)
Interest in AI-powered consumer products
What We’re Not Looking For
Candidates with only a pure Android or iOS background (no cross-platform experience)
Background limited to large, slow-moving enterprise companies
Engineers who prefer narrow scopes over ownership
Tech Stack
React Native
TypeScript
iOS / Swift
Android / Kotlin
Expo (existing apps live on App Store & Google Play)
Why Join Our Client
Founding Engineer Impact: Be the n=1 mobile engineer shaping the entire mobile platform
Massive Scale: 100K members today, on track for 1M within 12 months
Well-Funded: $35M raised from top-tier venture firms
Mission-Driven: Build AI-enabled healthcare products that expand access to care
Career Growth: Clear path to mobile team lead as the company scales
Strong Leadership: Team includes senior clinical and technology leaders from top institutions
Interview Process
Recruiter Screen (30 min)
Hiring Manager Screen (30 min)
Technical Interview (45 min)
On-Site / Virtual On-Site (≈5 hours)
Leadership / CEO Interview
References
Equal Employment Opportunity
TopTechTalent.ai believes that all persons are entitled to equal employment opportunities. TopTechTalent.ai recruits, hires, trains, promotes, disciplines and provides other conditions of employment without regard to a person's race, color, ethnicity, religion, gender, gender identity, or expression, age, national origin, citizenship status, disability, veteran's status, sexual orientation, marital status or other classifications protected under law or Company policy. This includes providing reasonable accommodation for team members' disabilities or religious beliefs and practices.
The government requires TopTechTalent.ai to maintain information on those who seek employment with the company, including their race and sex. Accordingly, to help us comply with this requirement, we encourage you to provide us with the following self-identification information. However, submission of this information is voluntary and refusal to provide it will not affect your opportunity for employment or terms and conditions of employment, if hired. If you do submit this information, it will be kept confidential and will be used in the compilation of data for reporting requirements.
🚫 Third-party recruiters, please do not reach out for this role.
Salary : $200,000 - $250,000