Kathy Chae worked in the emergency department in Korea for over 15 years. During that time, she noticed a significant mismatch between patients’ care needs and what providers were able to deliver. She often spent a large portion of her shift collecting meaningful clinical data from patients—many of whom were left waiting in the waiting room with no productive engagement—leaving limited time to focus on diagnosing and treating them effectively.

Founded by an Emergency Medicine physician, CyrenCare aims to transform how Emergency Departments (EDs) and Urgent Care centers approach patient care and their operations through innovation, technology, and a deep understanding of both patient and provider needs.

At CyrenCare, our mission is to revolutionize emergency and urgent healthcare. We believe that every minute counts in delivering timely and effective care to those in need. By seamlessly integrating technology into patient-provider communication, we're paving the way for streamlined emergency and urgent care beneficial for both patients and providers. Because every provider and patient deserves a seamless experience.

• Deal closed with 1 urgent care and 1 hospital in the US.
• On-going discussion with one Korean company, which provides HIS in major hospitals in Korea.

CyrenCare is looking for a Korea‑based engineer to assist our current CTO during a planned transition. After you join, you will work closely with him to capture all technical knowledge and documentation. He will then step away from the company for personal reasons, and you will take on the role of acting CTO.

If collaboration across U.S.‑Korea time zones runs smoothly, you may continue as CTO without our hiring an additional developer in the United States. Because we are expanding our product into the Korean market, having a developer located in Korea is the ideal fit.

A US-based venture capital firm invested in CyrenCare, believing that patient-generated data will become increasingly valuable. With the growing demand for patients’ rights to access their own health data—a trend that EMR companies can no longer ignore—they saw CyrenCare as being optimally positioned to collect rich clinical data over the long term. This data can also serve as a valuable resource for training AI models.

• Compensation will be structured as a mix of salary and equity, offering the right candidate a chance to share in the company’s long-term success. This role is ideal for someone who believes in the mission and wants to grow with the team as a foundational part of the company’s future.
• Fully remote, flexible work hours
• Work on a product that’s reshaping urgent care delivery
• Opportunity to shape technical strategy and product direction

• Significant Equity Package: We offer substantial stock options (ESO). You are not just an employee; you are a core partner who will share in CyrenCare's future success and exit value.

• Full Decision-Making Authority: You will have full autonomy to restructure the engineering team, hire/fire, and establish technical culture without micromanagement.

• Unlimited AI Tool Support: Full company support for paid subscriptions to all productivity-enhancing AI tools (GitHub Copilot, ChatGPT, Claude, Cursor, etc.) to lead our AI-native transition.