Sr Founding Mobile Engineer
Sr Founding Mobile Engineer
Location: Lisbon (on-site)
🚀 About Variacode
At Variacode, we connect top-tier tech talent with cutting-edge global projects. We are currently looking for an ambitious, challenge-seeking Founding Mobile Engineer to join a high-performing team building personal health infrastructure that centralizes medical records and puts data ownership back with the individual.
Our client's technology is used in 80+ countries by Fortune 500 companies (like Home Depot), allowing millions of users to preview products in their own spaces in real-time. If you want to make a massive impact and work on high-traffic, scalable systems, this is your place!
The Role
Own the mobile surface end-to-end, acting as the primary bridge between people and their daily health data. You will lead prompt-driven, AI-accelerated workflows to ship a highly performant iOS and Android app that blends technical excellence with creative execution.
⚙️ What you will do (Responsibilities):
- Build and ship the primary mobile application for iOS and Android from day one, blending speed, creativity, and precision.
- Engineer and refine prompts using AI tools (Claude Code, Cursor, Copilot, Windsurf) to generate, debug, and optimize code efficiently.
- Architect scalable and maintainable systems by thoughtfully curating AI-generated outputs.
- Ensure top-tier code quality, comprehensive test coverage, and high performance across the mobile experience.
- Manage seamless app releases on the App Store and Google Play while maintaining robust mobile CI/CD pipelines.
- Collaborate cross-functionally with Product, Design, and Backend teams to refine UI/UX and pay down technical debt.
What we are looking for:Must-haves (Required):
- Experience: 4+ years in software development with a strong mobile focus and a track record of shipping to the App Store and Google Play.
- Technical Stack & Tools: Advanced skills in React Native, JavaScript/TypeScript, and Git/GitHub collaborative workflows.
- Key Skills: Strong problem-solving, performance tuning, and the ability to drive AI-augmented development.
- Language: Fluent English proficiency (* inferred for US-focused startup/Lisbon-based team).
Nice-to-haves (Pluses):
- Bachelor's in CS or Engineering, knowledge of authentication protocols (OAuth, JWT), cloud platforms (AWS, GCP, Azure), and CI/CD pipelines.