You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Malt Strategy
New report
Malt Tech Trends 2026
Chavilah W.CW

Chavilah W.

Full Stack Developer (React, Go, Node, PHP)

€125/day
1 project
Espoo, FI
0-2 years
Node.js
React.js
JavaScript
PostgreSQL
REST

Average response time: 1 hour

About Chavilah

I build full-stack web apps that launch fast and scale right. Node.js + React + PostgreSQL + Docker.

Need a working MVP in weeks, not months? I handle everything from database design to deployment.

Have an existing app that's slow or buggy? I optimize queries, fix performance issues, and add features without breaking things.

Tired of developers who can't explain technical decisions? I work across US/EU hours and communicate in plain English.

Stack:
- Node.js
- Express
- React
- TypeScript
- PostgreSQL
- Docker
- REST APIs
- JWT
- Git

Recent project highlight: WeChat Mini Program booking system that saved a small business owner ~10 hours/week on manual scheduling.

Available for freelance & remote contracts. Based in Espoo, Finland — open during US & EU business hours.

GitHub: chavilaw
Digital and IT Services
E-commerce
IoT (Internet of Things)
Software Publishing
Digital Business Models

  • English

    Native or bilingual

  • Chinese

    Native or bilingual

  • Finnish

    Conversational

Can work on-site
Espoo (up to 50km)

Experience

  • Self Service
    Full Stack Developer (Go, React, PostgreSQL, Docker)
    TECH
    November 2025 - Today (9 months)
    Espoo, Finland
    Built a WeChat Mini Program booking system for a small business owner — allows customers to book services, manage appointments, and receive reminders. Saved the owner ~10 hours per week on manual scheduling.

    Backend (Node.js + Express + PostgreSQL):
    • Designed database schema for services, appointments, customers, time slots, and reminders
    • Built RESTful APIs with Express for service catalog, availability checking, booking creation, and cancellation
    • Implemented calendar logic to prevent double-booking and handle timezone differences (used moment-timezone)
    • Added JWT authentication and role-based access (admin vs. customer)
    • Created automated reminder system (sends WeChat notifications 24 hours before appointment using node-schedule)
    • Optimized availability queries with PostgreSQL indexing — reduced response time from 800ms to 150ms
    • Used async/await and connection pooling for better performance

    Frontend (WeChat Mini Program + TypeScript):
    • Built customer-facing interface: service selection, date picker, time slot picker, booking confirmation
    • Created admin panel for business owner: view/manage bookings, mark appointments as completed/cancelled
    • Implemented real-time calendar view with available/blocked slots
    • Added booking history and "reschedule" functionality

    Key results:
    • Business owner reduced manual scheduling time by ~10 hours/week
    • 0 double-booking incidents since launch
    • Customers receive automatic reminders — no-shows dropped by ~40%
    • Tech stack: Node.js · Express · PostgreSQL · WeChat Mini Program · TypeScript · JWT · Docker
    GO Websocket Docker Typescript PostgreSQL
  • Telecom Company
    IT Specialist
    September 2022 - September 2023 (1 year)
    Provided technical support and maintained internal IT infrastructure

    Assisted in network configuration and system troubleshooting

    Collaborated with cross-functional teams to resolve technical issues

Reviews

5.0

Out of 1 rating

J

Jin

Coordinator - Keren S

Reviewed on 4/13/2026

I hired Chavilah to build a complete website for our animal rescue shelter/adoption center—and the results exceeded my expectations. As a full-stack developer, she delivered three major features flawlessly: donation options, an adoption application system, and a fully functional merch shop. Everything works smoothly, the user experience is intuitive, and she was incredibly responsive throughout the project. What impressed me most: she understood our mission as a non-profit and built a solution that actually helps animals get adopted faster. I've also seen her work on a booking/timeslot platform project, so she clearly has range across different types of web applications—from e-commerce to scheduling systems. If you need a reliable full-stack developer who can handle complex functionality (payments, applications, user-facing platforms), I highly recommend Chavilah. Would hire again without hesitation.

Recommendations

Be the first to recommend Chavilah

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Signup to reveal

Education

  • Advanced Full Stack Engineering program
    Kood Sisu
    2026
  • Bachelor of Engineering
    Metropolia University of Applied Sciences
    2023
    Bachelor of Engineering
Check out Chavilah's education

Skill set

Front End Interface Development
Mobile App Deployment
SEO
PHP
Docker
Websocket
API REST
Git
Typescript

Categories