Mid Level Founding Mobile Engineer - Lisbon, PRT

Mid Level 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 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

Develop the mobile surface, acting as a primary bridge between people and their daily health data. You will leverage 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 features for the primary mobile application for iOS and Android, blending speed, creativity, and precision.


• Engineer and refine prompts using AI tools (Claude Code, Cursor, Copilot, Windsurf) to generate, debug, and optimize code efficiently.


• Develop 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.


• Support seamless app releases on the App Store and Google Play while contributing to 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: P2 / Mid-Level intermediate (~3-5 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.

What we offer:

• Opportunity to work with cutting-edge tech stacks and Fortune 500 clients.


• A highly collaborative, innovation-driven, and remote-first global culture.


• Continuous professional growth and career development pathways.


• Founding team member status with meaningful equity and real ownership, working in a fast-paced on-site setup in Lisbon.