Job Summary: We are seeking a Full Stack developer to ensure the current architecture and lead the technical transition toward a new phase of growth in the fitness, health, and wellness sector. Key Highlights: 1. Lead the app’s technological transition 2. Build the technological foundation for product growth 3. Propose architectural improvements and decisions Position: Full Stack Tech – fitness, health, and wellness Technology is critical to the product’s stability and scalability. We seek a Full Stack developer who will ensure the current architecture and lead the technical transition toward a new phase of growth. Challenges **Conduct a thorough audit and successful technical handover**Lead the full app transition**Build the technological foundation for growth** Responsibilities **Develop and evolve the app**Ensure technical stability **Scale the product according to business criteria**Propose architectural improvements and decisions Desired Profile **Technology professional or related field**\+7 years of Full Stack development experience.**Experience in startups and digital products**Proficiency in React Native / Flutter \| Node.js / Python / RoR \| AWS / Firebase **Claude Code or Cursor experience preferred.**High level of autonomy and business mindset**Proactive, with strong technical judgment and strategic vision** Conditions Hybrid/in-person work mode. Working hours: 9:00 a.m. to 5:00 p.m. Compensation scheme: confidential Employment type: Full-time, indefinite contract Application Question(s): * Please describe your development experience, responsibilities, projects you have participated in, and the tools you use for Backend and Frontend. * Do you have experience with digital products or startups? How many years of experience? * Have you worked with Claude Code or Cursor? * Salary expectation Education: * Completed Bachelor’s degree (Mandatory) Experience: * Full Stack experience in startups: 7 years (Mandatory) Language: * English at an upper-intermediate level (Mandatory)