Open to opportunities

William User

@williamuser

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Experienced software engineer specializing in full stack development.

Indonesia

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What I'm looking for

I seek a dynamic work environment that fosters innovation and growth.

I'm William Lie, a dedicated Full Stack Developer with a strong background in Ruby on Rails, React, and PostgreSQL. Currently, I lead development at Chart Request, where I successfully optimized our system to perform 21% faster and resolved critical server issues during peak times. My experience spans across various industries, where I have consistently delivered high-quality software solutions that enhance business processes.

Previously, I worked as a Backend Developer at Hubble.Build in Singapore, where I developed a self-serving portal and designed a robust data structure capable of handling millions of attendance records. My freelance work has allowed me to collaborate with diverse companies, implementing secure and efficient services. I hold a Bachelor of Science in Computer Engineering and Programming from UBAYA University, and I am passionate about leveraging technology to solve complex problems.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Chart Request

Mar 2023 - Present (2 years 2 months)

Led development using Ruby on Rails and React, optimizing code for performance improvements. Delivered features on time and enhanced system metrics for better analytics.

Ruby on Rails React PostgreSQL Sidekiq Performance Optimization Metrics Optimization Agile Development

Backend Developer

Hubble.Build

Mar 2022 - Feb 2023 (11 months)

Developed a self-serving portal using Ruby on Rails and Golang, designed data structures for high-volume attendance data, and maintained microservices performance.

Ruby on Rails Golang PostgreSQL RabbitMQ Microservices Data Migration Performance Kubernetes Kibana Sentry

Software Engineer

Freelance

Aug 2020 - Mar 2022 (1 year 7 months)

Developed various services for financial institutions, implementing robust security measures and integrating with cloud services for deployment.

Spring Boot Ruby on Rails PostgreSQL AWS Heroku Security Cloud

Web Developer

Danaprospera

Apr 2019 - Jul 2020 (1 year 3 months)

Collaborated with business teams to deliver high availability solutions using Laravel and Vue.js, enhancing marketing efficiency and integrating third-party libraries.