Fullstack Javascript Developer

Job Description
System Evolution: Participate in the maintenance and development of a modern Web Application (NestJS [protected info]) that is actively replacing legacy Google Sheets/Apps Script workflows, ensuring a smooth and reliable migration path.
Development & Implementation: Build and scale back-end services using NestJS (TypeScript) with TypeORM/PostgreSQL, and front-end features using [protected info] (React). Implement data synchronization pipelines between Google Sheets and the database.
Cloud Infrastructure: Deploy and maintain services on Google Cloud Platform - including Cloud Run for application hosting and Cloud SQL (PostgreSQL) for managed databases.
Feature Deployment: Implement new feature requests across the web platform, including API development, UI components, and data integration workflows that bridge legacy spreadsheet systems and the modern application.
Troubleshooting: Investigate and resolve technical issues, performing root-cause analysis for bugs across the full stack - from database queries and sync pipelines to front-end rendering.
Documentation: Produce and maintain comprehensive technical documentation for the system architecture, API integrations, and user guides.
Subject Matter Expertise: Act as a technical expert for the system, educating and supporting stakeholders to ensure smooth adoption of new tools and workflows.
Working Time
Work 5 days/week; including holidays, Tet holiday.
Work in 3 shifts in rotation following company's arrangement
S1: 8:00-17:00
S2: 14:00-23:00
S3: 21:00-5:00 (next day)
Work fixed on 1 shift per week (e.g. S1 for the whole week).
Estimated 6-8 months of shift work per year.
Requirements
Technical Proficiency: Solid experience in Fullstack development with NestJS or NodeJS (Backend) and React / [protected info] (Frontend), using TypeScript.
Hands-on experience with PostgreSQL - including database design, migrations, and query optimization.
Proficiency in building, analyzing, and optimizing complex SQL queries to ensure high system performance.
Strong proficiency in JavaScript/TypeScript and asynchronous programming.
Cloud & DevOps:
Experience deploying applications on Google Cloud Platform (Cloud Run, Cloud SQL, or similar managed services).
Familiarity with Docker, CI/CD pipelines (GitHub Actions), and cloud-native deployment practices.
Problem-Solving Attitude: A proactive mindset - someone who enjoys investigating the root cause of issues and delivering long-term resolutions.
Accountability & Ownership: A self-starter who can own a system/platform, take responsibility for its lifecycle, and become the subject matter expert.
Interpersonal Skills: Great communication skills with the ability to collaborate effectively with both technical team members and non-technical stakeholders.
Nice-to-have:
Experience with Google Apps Script (custom functions, triggers, spreadsheet automation) - the system is migrating from Apps Script to the web platform.
Knowledge of Google Sheets/Drive APIs and spreadsheet-driven business workflows.
Understanding of Change Data Capture (CDC) patterns - e.g., syncing data from PostgreSQL to BigQuery for analytics.
Experience with Firebase Authentication or Google OAuth integration.
Familiarity with ORM frameworks (TypeORM or similar).
Benefits
Well-trained and dedicated to being able to catch the pace smoothly
Attracted salary based on the ability of the candidate and the general salary framework set by the company.
Salary review based on performance every 6 months if your basic salary is less than 30,000,000 VND. If your basic salary is from 30,000,000 VND, it will be reviewed every year
13th-month salary and bonus for holidays
Team building once a month
Company trip: 1 time/year
PVI Healthcare Insurance
Full social benefits in accordance with the company and the law of Vietnam
Great opportunity to improve your English
Opportunity to be trained overseas, and develop English communication skill.
(Please be noted that only selected candidates will be contacted via phone)