Senior Mobile Engineer (Full Stack)

Arionkoder, a product development studio, is hiring a Senior Mobile Engineer (Full Stack) to build an early-stage mobile prototype into a functional, scalable, consumer-facing security application (phishing detection, message validation, identity verification). Remote, restricted to Argentina, Uruguay, Brazil, Colombia, and Peru — "a dynamic remote work culture, work from anywhere" within those countries.

You will design system architecture and make key technical decisions, develop backend services and APIs alongside the mobile app, and collaborate with senior stakeholders to translate ambiguous requirements into shipped solutions.

Requirements: 5+ years producing production mobile apps (iOS/Android), backend services and API experience, familiarity with AI development tools (Claude, ChatGPT, Gemini, etc.), mobile platform internals knowledge (permissions, sandboxing, messaging), scalable architecture design experience, comfort with cloud infrastructure and distributed systems, high autonomy navigating ambiguous requirements, and strong English proficiency (100% of work is conducted in English).

Compensation is not publicly listed; applicants provide an expected monthly USD rate during the application process. Benefits include 20 paid days off annually plus 6 local holidays, and caregiver time off.

To apply, use the link below to Arionkoder's official Greenhouse job board.