Shiwoo Park (Silva)

Baropharm .inc

Senior Backend Software Engineer • Mar, 2024 — Present

Responsibilities

• Develop and maintain backend APIs and admin frontends for 6+ web/app services centered on the pharmaceutical ordering platform BaroPharm
• Propose and implement various processes and systems as a senior developer to improve team efficiency and productivity
• Address development team inquiries and resolve technical issues during service operations
• Handle DevOps tasks as needed, including new infrastructure setup and deployment automation

• Automated deployment for ~20 crawler servers with varying specifications and purposes, reducing deployment time from 30 minutes to 3 minutes
• Established foundational development infrastructure including major tech stack upgrades, unit testing introduction, API spec page redesign, and enhanced error monitoring
• Designed and developed a real-time user-action-based reward system (mission platform) to rapidly address marketing team needs
• Developed shared frontend components, reducing back-office development time significantly (approximately 3x productivity improvement with AI integration)
• Participated in the full lifecycle of two new business ventures (B2B trading platform, pharmacist-to-expert consultation platform), handling 50% and 100% of backend work respectively

Birdview .inc

Backend Developer (Product Review Domain, Tech Lead) • Aug, 2021 — Oct, 2023

Responsibilities

• Developed and maintained backend services for product and review domain
• Served as Tech Lead, providing technical guidance from project review through launch
• Led a small backend team of two members, managing both team leadership and technical responsibilities
• Conducted technical interviews for junior and experienced developer positions

• Improved JIRA workflow and implemented automation (Slack notifications) to enhance team code review efficiency
• Refactored backend architecture for 'Hwahae Award' service by merging redundant database tables and adding service exposure control features
• Implemented Kakao login integration, contributing to increased new subscribers for KakaoTalk channel
• Established user information processing lifecycle system for dormant/withdrawn users to comply with ISMS requirements
• Launched 'Inner Beauty' service: developed crawler data ingestion, user and admin APIs, and ensured compatibility with commerce and advertising services
• Migrated and maintained JSP legacy code by analyzing old codebase and porting functionality to new APIs with proper documentation and testing

Sendbird .inc

Software Engineer • Oct, 2020 — July, 2021

Developed backend for client web dashboard SaaS platform

• Developed backend APIs for Sendbird user admin web dashboard using Django
• Maintained back-office software built with React.js
• Handled diverse requests from B2B customer management departments including Accounting, Solutions Engineering, and Customer Service
• Worked in an English-speaking environment (approximately 50% of work conducted in English)

Kakao Page Corp

Software Engineer (Full-stack) • Jun, 2016 — Sep, 2020

Responsibilities

• Developed and maintained full-stack admin tools for various departments (customer service, business, marketing, advertising)
• Developed and maintained mobile push notification system
• Addressed technical issues and service inquiries from various departments
• Maintained continuity and provided onboarding support during frequent team member changes over 4.5 years

• Designed and developed advertising Supply-Side Platform including reward ads, offerwall, and report generation, contributing to sales growth
• Designed and implemented operational task scheduling system, improving administrator workflow efficiency
• Developed quest platform with flexible reward options to drive user engagement and meet diverse marketing requirements
• Developed target user management system utilized across various services for user targeting
• Implemented DB sharding support by modifying DB routers and developing ORM utility functions
• Led Python-Django project version upgrades for both language and framework
• Developed push notification system capable of sending millions of notifications simultaneously with rate control features using Celery and Redis
• Enhanced monitoring capabilities using Elasticsearch for request data and user comments
• Concurrently worked on legacy project migration, progressing from 10% to 90% completion over 4.5 years
• Implemented CI/CD pipeline using Ansible and Jenkins
• Introduced unit testing using pytest

Line Plus Corp

Software Engineer • Sep, 2015 — Jan, 2016

Backend developer for LINE Friends online store

• Worked as part of a small team composed of members from an acquired startup
• Developed custom payment module for PC and mobile web browsers, integrating with payment gateway services
• Developed backend API for LINE Friends Online Store, ensuring compatibility with WordPress database structure and CMS administration

Zum Internet

Data Platform Developer • Dec, 2013 — Aug, 2015

Developed and maintained web data crawlers and parsers for search engine (zum.com)

• Developed and maintained approximately 400 parsers for various websites
• Created web service to facilitate custom web page parser generation and management, reducing parser production time to 1/5 of the average
• Monitored and maintained crawler servers to ensure stable web data collection for portal service search components
• Extracted 100 high-quality blogs from large-scale blog data

University of Hanyang

Bachelor’s Degree, Software Engineering • 2006 — 2013

Zerobase Front-end school online lecture

Javascript Teacher • May, 2022 — July, 2022

Created online lecture of javascript core concepts summary

• Total class hours: 5 hrs
• Used self-designed curriculum and self-made material
• The lecture was included in zerobase front-end school program in 2023
• Created lecture while working at Birdview.inc simulatneoulsy

hantax.com

Primary Developer • Mar, 2016 — May, 2016

My first independent full-stack web development experience as a freelancer.

• Organized service infrastructure
• Developed client web site for comprehensive income tax return
• Developed and Designed admin web site for company workers
• Technical stack: AWS, MySQL, jquery, bootstrap, jade, sass, expressjs, npm

Programming Languages

Python, Java, JavaScript(ES6, TypeScript)

Backend

Django, DRF, Celery, Express.js, Spring, JSP

Frontend

Vue.js, React.js, Next.js

Databases

MySQL, PostgreSQL, Redis, Elasticsearch

DevOps & Infra

AWS (EC2, S3, ECS, RDS, CloudWatch), Terraform, Ansible, Bash

Tools

Git, Github / Gitlab, Jenkins, Jira, Confluence

Additional

Technical Leadership; Mentoring; Instructor (Online Course Production); Team Interviewing & Hiring Process

• Global heating & environment
• Camping
• Piano