Senior Back End Engineer (Nodejs)

SigmaMD aims to make a meaningful contribution to the world by changing the way people manage their health. Our growing engineering and product team has deep expertise in consumer tech. We are combining our diverse backgrounds to innovate in Digital Health. Our goal is to make millions of lives healthier by using technology. We strive to empower patients to take control of their health care and help clinicians better treat them. To achieve this vision we need an outstanding and passionate Senior NodeJS Back End Engineer to take on the following responsibilities:      Required Skills: Proven experience  in developing and maintaining backend systems with  Node.js  and  MongoDB . Hands-on experience with AWS cloud services. Strong knowledge and experience with  microservices architecture  and event-driven design. Experience working with  message queues  like  Amazon SQS  or similar technologies. Strong understanding of web software security, including authentication, authorization, and data encryption best practices. Excellent collaboration skills, with the ability to work closely with frontend developers to ensure smooth integration. Strong knowledge of computer science fundamentals, algorithms, and system design. Good to Have: Experience with  React  and/or  React Native . Experience with Large Language Models (LLMs) and machine learning in general is a plus. Familiarity with  data-sensitive products  and handling large-scale datasets securely. Experience working in a  product-driven environment , particularly in consumer-facing startups. Experience as an early engineer in a fast-paced startup, contributing to product direction and scaling systems.