Full-Stack Mobile Developer - Kotlin, SwiftUI & Jetpack Compose

Full-Stack Mobile Developer Vacancy.
Company: Fifty Fifty Card.
Location: Mexico or Colombia (Remote or Hybrid, depending on location).
Position: Full-Stack Mobile Developer.
Language Requirement: Fluent in English.
Start Date: ASAP.

About Us:

Fifty Fifty Card is a dynamic startup revolutionizing the restaurant loyalty experience in Mexico, with plans to expand into Colombia. Our consumer-facing Fifty Fifty Card app and restaurant-oriented Fifty Fifty Serve app empower users and businesses with seamless, rewarding interactions. Built with cutting-edge technology, our small but ambitious team is looking for a skilled developer to join us in scaling our platform.

Role Overview:

As a Full-Stack Mobile Developer, you’ll work closely with the team to enhance and maintain our mobile apps and backend infrastructure. This role values versatility, with a focus on mobile development (Android and/or iOS) and the opportunity to contribute to backend tasks. You’ll help maintain shared Kotlin Multiplatform codebases, ensuring a consistent experience across platforms while supporting our expansion into Colombia.

Responsibilities:

• Develop and maintain features for the Fifty Fifty Card and Fifty Fifty Serve apps, leveraging Kotlin Multiplatform Mobile (KMM), SwiftUI, or Jetpack Compose as needed.
• Contribute to backend services using Kotlin with Ktor to support robust API performance.
• Work with shared API code between mobile apps and backend.
• Interact with AWS infrastructure and PostgreSQL for scalable, reliable data management.
• Participate in code reviews, testing, and debugging to ensure high-quality deliverables.
• Share ideas for new features and improvements as we expand into Colombia.
• Communicate effectively in English with the team to align on project goals.

Requirements:

Technical Skills:

• Proficiency in mobile development for either Android (Jetpack Compose) or iOS (SwiftUI), with some knowledge of the other platform preferred.
• Familiarity with Kotlin Multiplatform Mobile (KMM) is a plus but not required.
• Basic understanding of backend development, ideally with Kotlin and Ktor, or willingness to learn.
• Exposure to AWS services and PostgreSQL databases is preferred but not mandatory.
• Understanding of RESTful APIs and interest in working with shared codebases.

Experience:

• 2+ years of experience in mobile app development (Android or iOS).
• Some experience or interest in backend development.
• Openness to working on full-stack projects, ideally in a startup environment.

Language:

• Fluent in English (written and spoken) for effective communication with the team.

Location:

• Based in Mexico or Colombia, with the ability to work remotely or hybrid.

Soft Skills:

• Self-motivated and eager to learn new technologies and skills.
• Strong problem-solving skills and a proactive approach to challenges.
• Team player with excellent communication skills.

Nice-to-Haves:

• Experience with Kotlin Multiplatform Mobile or cross-platform development.
• Familiarity with scaling apps for new markets (e.g., Latin America).
• Knowledge of CI/CD pipelines or mobile app deployment processes.
• Understanding of the restaurant or loyalty program industry.

Why Join Us?

• Be a key part of a growing startup with ambitious plans to expand across Latin America.
• Work on modern tech with opportunities to grow in Kotlin Multiplatform, SwiftUI, or Jetpack Compose.
• Collaborate in a flat, dynamic team structure where your ideas matter.
• Opportunity to make a significant impact on product development and user experience.

We’re excited to meet talented developers in Mexico and Colombia who are ready to help us shape the future of restaurant loyalty!

Location: Remote - Mexico, Colombia

Skills required for this job:

• AWS
• Back-end development
• Gastronomy app development
• Jetpack compose
• Kotlin Multiplatform
• Mobile app development
• PostgreSQL
• REST API
• SwiftUI