Senior Full-Stack Engineer

Senior Full-Stack Engineer (Flutter, Node.js, AWS)

At Robots & Pencils, we’re looking for a Senior Full-Stack Engineer (Level 4) to help build and scale our next-generation health and wellness platform. You’ll work across the stack, delivering beautiful mobile experiences in Flutter, robust backend services in Node.js, and reliable infrastructure on AWS.

This is a senior, hands-on role where you’ll contribute to architecture decisions, improve existing systems, and collaborate closely with a small, fast-moving team. You’ll also work with health-data integrations like Apple HealthKit, apply QA best practices, and leverage AI-forward tools (Claude, Windsurf, Cursor, etc.) to speed up development.

Key Responsibilities

• Build and maintain cross-platform mobile applications in Flutter
• Develop secure, scalable backend APIs and services in Node.js
• Contribute to system architecture and AWS cloud infrastructure
• Review, refactor, and improve the existing codebase for performance and maintainability
• Collaborate with product and engineering teammates in a fast-paced environment
• Integrate Apple HealthKit and other health-data platforms
• Apply QA practices and automated testing to ensure reliability
• Use AI-powered development tools to improve velocity and consistency
  
  

Required Skills & Qualifications

• 5+ years of professional software development experience
• Strong experience with Flutter and Node.js
• Familiarity with AWS services and cloud-native architecture
• Background in mobile app architecture and scalable systems design
• Experience integrating with Apple HealthKit
• QA mindset with experience in testing strategies
• Comfortable working in startup-style, fast-moving environments
• Excellent communication and teamwork skills
• Passion for health and wellness technology
• Upper-Intermediate English (written and spoken)
  
  

Nice to Have

• Experience with other wearable or health integrations
• Knowledge of CI/CD pipelines and DevOps workflows
• Previous experience mentoring junior developers
  
  

Why Join Robots & Pencils?

At Robots & Pencils, we don’t just build software, we create meaningful technology that helps people live healthier lives. You’ll work alongside passionate engineers, designers, and innovators in a collaborative, remote-friendly environment. With our continued growth, now is the perfect time to join our team and make a direct impact on the future of digital health.