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Full-Stack Software Engineer with 4+ years of part-time contract experience, specializing in Python, AI, and Machine Learning. Experienced building scalable applications and AI-powered solutions using Python, LangChain, and LLMs.…

Jackey Chen

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

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Full-Stack Software Engineer with 4+ years of part-time contract experience, specializing in Python, AI, and Machine Learning. Experienced building scalable applications and AI-powered solutions using Python, LangChain, and LLMs.…

Available to hire

Full-Stack Software Engineer with 4+ years of part-time contract experience, specializing in Python, AI, and Machine Learning. Experienced building scalable applications and AI-powered solutions using Python, LangChain, and LLMs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Beginner

Beginner

Work Experience

Remote Software Engineer (Part-time Contract) at Hanpsper Corporation

April 1, 2024 - July 1, 2026

Architected Python-based REST APIs for real-time web-to-hardware communication. Improved search performance by 40% via Python backend optimization, SQL indexing, and AWS RDS query improvements. Deployed containerized Python microservices using Docker on AWS EC2 with load balancing and scalable cloud infrastructure. Developed serverless applications using AWS Lambda (Python) and API Gateway for scalable, event-driven workloads. Integrated Firebase Authentication and Firebase Realtime Database with Python backends for real-time device status and data synchronization. Built AI-powered features using Python, LangChain, LLMs, and machine learning technologies for automation and intelligent data processing.

Remote Software Engineer (Part-time Contract) at Evi ne

January 1, 2022 - March 1, 2024

Architected 15+ REST APIs using ASP.NET Core and Python, supporting 100,000+ monthly active users. Optimized database queries using Entity Framework Core, Python, and AWS RDS, improving API response times by 40%. Designed serverless functions using AWS Lambda (C# and Python) with API Gateway for event-driven workloads. Implemented role-based authentication using ASP.NET Core Identity, JWT, and AWS IAM. Integrated Firebase Authentication and Firebase Realtime Database with backend services for secure authentication and real-time data. Containerized microservices using Docker and engineered CI/CD pipelines using GitHub Actions. Integrated AI-powered content generation using Python, LangChain, LLMs, and Semantic Kernel, exposed via REST APIs.