Full Stack Engineer – Digital Health Startup

Overview

Join a fast-growing US-based digital health startup focused on building a leading women's health platform. This role is ideal for a developer passionate about leveraging technology, AI, and personalized care to create impactful consumer and B2B solutions. You will collaborate closely with the founder and UI/UX designer to rapidly develop and refine an MVP, transforming it into a scalable, production-ready product.

The position requires hands-on involvement in both fullstack web and iOS app development, API design and integration, and the implementation of AI-driven features such as chatbots using LLM flows. The ideal candidate is comfortable working in a dynamic startup environment and is eager to contribute to a mission-driven product with global ambitions.

• Develop and maintain both web and iOS applications, ensuring seamless user experiences across platforms
• Design, build, and integrate APIs to support platform functionality and third-party services
• Implement AI and chatbot features using large language model (LLM) flows
• Collaborate with the founder and UI/UX designer to deliver on a clear product vision and iterate rapidly based on feedback
• Prepare the product for scaling, focusing on performance, security, and reliability
• Troubleshoot, debug, and optimize code for both MVP and production-ready releases
• Stay current with emerging technologies relevant to digital health, AI, and app development

• Proficiency in fullstack web development (e.g., React, Node.js, or similar modern frameworks)
• Experience with iOS app development (Swift, Swift
  
  UI, or Objective-C)
• Strong background in API design, integration, and management
• Familiarity with AI/chatbot systems, especially LLM-based flows, is highly desirable
• Experience working in digital health, consumer apps, B2B SaaS, or startup environments is a plus
• Ability to work independently and collaboratively in a fast-paced, deadline-driven setting
• Excellent problem-solving skills and attention to detail
• Strong communication skills and ability to translate product vision into technical solutions
• Availability to deliver an MVP within a one-month timeline, with potential for ongoing work

Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally.

Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.