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Hi, I’m Daniel Lee, a Senior Software Engineer with 10+ years of experience building scalable backend systems, AI/ML solutions, and HIPAA-compliant healthcare platforms. I specialize in Python, Golang, and Node.js, delivering high-impact projects across healthtech, fintech, and e-commerce. I enjoy designing microservices, real-time data processing, and cloud infrastructure. I’m passionate about turning complex data into reliable software, mentoring teams, and delivering secure, scalable solutions that improve patient outcomes and business results. I thrive in collaborative environments and love staying on top of the latest tech in ML pipelines, cloud-native architecture, and modern frontend-backend integration.…Hi, I’m Daniel Lee, a Senior Software Engineer with 10+ years of experience building scalable backend systems, AI/ML solutions, and HIPAA-compliant healthcare platforms. I specialize in Python, Golang, and Node.js, delivering high-impact projects across healthtech, fintech, and e-commerce. I enjoy designing microservices, real-time data processing, and cloud infrastructure. I’m passionate about turning complex data into reliable software, mentoring teams, and delivering secure, scalable solutions that improve patient outcomes and business results. I thrive in collaborative environments and love staying on top of the latest tech in ML pipelines, cloud-native architecture, and modern frontend-backend integration.

Daniel Lee

Full Stack Developer, Back-End Developer, Web Developer, +2

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Hi, I’m Daniel Lee, a Senior Software Engineer with 10+ years of experience building scalable backend systems, AI/ML solutions, and HIPAA-compliant healthcare platforms. I specialize in Python, Golang, and Node.js, delivering high-impact projects across healthtech, fintech, and e-commerce. I enjoy designing microservices, real-time data processing, and cloud infrastructure. I’m passionate about turning complex data into reliable software, mentoring teams, and delivering secure, scalable solutions that improve patient outcomes and business results. I thrive in collaborative environments and love staying on top of the latest tech in ML pipelines, cloud-native architecture, and modern frontend-backend integration.…Hi, I’m Daniel Lee, a Senior Software Engineer with 10+ years of experience building scalable backend systems, AI/ML solutions, and HIPAA-compliant healthcare platforms. I specialize in Python, Golang, and Node.js, delivering high-impact projects across healthtech, fintech, and e-commerce. I enjoy designing microservices, real-time data processing, and cloud infrastructure. I’m passionate about turning complex data into reliable software, mentoring teams, and delivering secure, scalable solutions that improve patient outcomes and business results. I thrive in collaborative environments and love staying on top of the latest tech in ML pipelines, cloud-native architecture, and modern frontend-backend integration.

Available to hire

Hi, I’m Daniel Lee, a Senior Software Engineer with 10+ years of experience building scalable backend systems, AI/ML solutions, and HIPAA-compliant healthcare platforms. I specialize in Python, Golang, and Node.js, delivering high-impact projects across healthtech, fintech, and e-commerce. I enjoy designing microservices, real-time data processing, and cloud infrastructure.

I’m passionate about turning complex data into reliable software, mentoring teams, and delivering secure, scalable solutions that improve patient outcomes and business results. I thrive in collaborative environments and love staying on top of the latest tech in ML pipelines, cloud-native architecture, and modern frontend-backend integration.

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Work Experience

Senior Software Engineer at Renew Health

September 1, 2025 - September 1, 2025

Architected and delivered a HIPAA‑compliant digital health platform serving 5,000+ patients with cardiovascular disease prevention programs, including frontend interfaces, backend APIs, and cloud infrastructure. Built a microservices platform using Python (Django/FastAPI), Node.js (NestJS), and Go for high‑performance operations, exposing RESTful and GraphQL APIs with sub‑200ms latency and RBAC/OAuth2 security. Implemented a telemedicine video system with WebRTC and secure sessions, enabling 50,000+ virtual appointments. Deployed event‑driven patterns with Redis and RabbitMQ for real‑time health alerts and asynchronous tasks. Optimized PostgreSQL/TimescaleDB data models for 10TB+ patient data, cutting query times by ~75%. Integrated Quest/LabCorp, SureScripts, Stripe, and insurance APIs to streamline patient workflows.

Software Engineer at DIFCO

April 1, 2019 - April 1, 2019

Developed custom software solutions for 20+ startup and enterprise clients as part of a Silicon Valley AI and mobile development firm. Built scalable RESTful and GraphQL APIs using Node.js (Express/NestJS) and Python (Flask/FastAPI) serving web and mobile apps with 50K+ daily active users. Implemented high‑performance Go microservices for payment processing and real‑time data synchronization with low latency. Secured authentication with JWT/OAuth2, MFA, and biometrics; optimized caching (Redis/Memcached), DB indexing, and CDN usage to reduce API response times by ~60%. Built ML pipelines (TensorFlow, PyTorch) for computer vision, NLP, and analytics; deployed models as containerized services, and created ETL data processing with pandas/NumPy.

Senior Software Engineer at Difco

April 1, 2019 - April 1, 2019

Developed custom software solutions for 20+ startup and enterprise clients across FinTech, HealthTech, and e-commerce as part of a Silicon Valley AI and mobile development company.