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Hi, I’m Huijie Pan, a software engineer specializing in building scalable backend services and intuitive user interfaces. In my recent role at PayPal, I helped design Node.js/Express microservices for high-scale login and identity workflows and built real-time dashboards with React. I enjoy solving challenging problems with modern stacks, from AI-powered tooling to cloud infrastructure, and I’m committed to mentoring teammates and shipping robust, test-covered features that users rely on daily.…Hi, I’m Huijie Pan, a software engineer specializing in building scalable backend services and intuitive user interfaces. In my recent role at PayPal, I helped design Node.js/Express microservices for high-scale login and identity workflows and built real-time dashboards with React. I enjoy solving challenging problems with modern stacks, from AI-powered tooling to cloud infrastructure, and I’m committed to mentoring teammates and shipping robust, test-covered features that users rely on daily.

Huijie Pan

Full Stack Developer, Back-End Developer, Front-End Developer, +4

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Hi, I’m Huijie Pan, a software engineer specializing in building scalable backend services and intuitive user interfaces. In my recent role at PayPal, I helped design Node.js/Express microservices for high-scale login and identity workflows and built real-time dashboards with React. I enjoy solving challenging problems with modern stacks, from AI-powered tooling to cloud infrastructure, and I’m committed to mentoring teammates and shipping robust, test-covered features that users rely on daily.…Hi, I’m Huijie Pan, a software engineer specializing in building scalable backend services and intuitive user interfaces. In my recent role at PayPal, I helped design Node.js/Express microservices for high-scale login and identity workflows and built real-time dashboards with React. I enjoy solving challenging problems with modern stacks, from AI-powered tooling to cloud infrastructure, and I’m committed to mentoring teammates and shipping robust, test-covered features that users rely on daily.

Available to hire

Hi, I’m Huijie Pan, a software engineer specializing in building scalable backend services and intuitive user interfaces. In my recent role at PayPal, I helped design Node.js/Express microservices for high-scale login and identity workflows and built real-time dashboards with React.

I enjoy solving challenging problems with modern stacks, from AI-powered tooling to cloud infrastructure, and I’m committed to mentoring teammates and shipping robust, test-covered features that users rely on daily.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Javanese

Advanced

Aragonese

Intermediate

English

Fluent

Work Experience

Software Engineer (Full-Time) at PayPal

February 1, 2022 - Present

Designed and built Node.js / Express microservices supporting high-scale login and identity flows, processing tens of millions of authentication requests monthly with sub-100 ms p99 latency. Led development of LLM-backed internal tooling using Node.js, Python and OpenAI APIs, reducing manual engineering workflow by roughly 40%. Built full-stack React and Node.js dashboards for real-time monitoring of identity and fraud signals, replacing legacy tools and giving ops teams faster incident response capability. Implemented retrieval-augmented generation (RAG) pipelines with vector search to provide engineers contextual documentation and logs integrated directly to Slack and internal portals. Collaborated with cross-functional teams to migrate legacy Java services to Node.js / Express microservices on AWS, improving deployment frequency and reducing infra costs. Contributed to React component libraries and shared frontend utilities used across 6+ internal applications. Conducted code review

Software Engineer (Contract) at PayPal

April 1, 2021 - February 1, 2022

Developed REST API endpoints in Node.js / Express for internal identity and account management services. Built React UI features for internal tools used by customer support and fraud operations teams. Integrated third-party APIs including S3 and AWS to support data processing pipelines. Participated in agile sprints, consistently delivering features on time with strong test coverage.