JAC

Software Engineer

Hi, I’m JAC.

I build web platforms, Android apps, and AI tools.

Explore projects About my work

01 / Projects

Selected Work

A look at the systems I build, from application workflows to the infrastructure behind them.

Full Stack

Operational Web Platform

Designed a modular full-stack platform with authenticated workflows, admin surfaces, and real-time updates.

  • Separated frontend, API, and data responsibilities
  • Improved maintainability for multi-role product flows
  • Next.js
  • Spring Boot
  • PostgreSQL
  • Docker
  • Websocket

AI & Computer Vision

Computer Vision Automation

Built detection and recognition workflows around Python services for image-heavy automation tasks.

  • Connected model output to practical review flows
  • Balanced real-time feedback with traceable decisions
  • Python
  • OpenCV
  • TensorFlow
  • LLM Integration

Mobile

Native Android Product

Delivered Kotlin-based mobile app experiences with local persistence and API-backed synchronization.

  • Kept device workflows responsive under weak networks
  • Structured app state around predictable data updates
  • Kotlin
  • Android Studio
  • Room DB
  • Websocket

DevOps & Infrastructure

Infrastructure Operations

Managed Linux services, reverse proxy routing, deployment routines, and internal network access.

  • Standardized repeatable server setup tasks
  • Hardened production services around practical security basics
  • Linux
  • Docker
  • Nginx
  • Bash Scripting

02 / About

Across the stack.

My work spans application interfaces, backend services, native Android development, and computer vision. I care about the decisions between those layers: how data moves, how systems are deployed, and how they stay maintainable.

Tools & technologies

Frontend
Next.js · TypeScript · Tailwind CSS v4 · Shadcn UI
Backend
Spring Boot (Java) · Laravel (PHP) · Node.js · C# WPF · REST APIs
Mobile
Android Development · Native Kotlin · Android Studio
AI & Computer Vision
Python · Facial Detection/Recognition · LLM Integration · Computer Vision · Automation
DevOps & Infrastructure
Linux · Nginx · Reverse Proxy · Security · Docker · Git · File Servers · VPN Server Setup
Databases
PostgreSQL · MySQL

03 / Experience

The work along the way.

From backend foundations to building and operating complete systems.

  1. 2023 - Present

    Senior Full Stack Engineer

    Product engineering and platform architecture

    Leading delivery across web, service, and deployment layers for production applications.

    Responsibilities
    • Architect scalable web applications with Next.js and Spring Boot
    • Shape service boundaries, deployment patterns, and code review standards
    • Improve reliability, performance, and maintainability across user-facing workflows

  2. 2021 - 2023

    Backend Developer & System Administrator

    Backend systems and infrastructure operations

    Built APIs while maintaining Linux infrastructure and deployment paths.

    Responsibilities
    • Develop Laravel applications, REST APIs, and database-backed services
    • Configure Nginx reverse proxies, server hardening, and deployment routines
    • Tune database access patterns and add practical monitoring for production services

  3. 2019 - 2021

    Backend Developer

    Application backend foundations

    Focused on API development, database design, and cross-functional delivery.

    Responsibilities
    • Build RESTful APIs for web and mobile clients
    • Design relational schemas and integrate third-party services
    • Collaborate with frontend teams to deliver complete product features

04 / Credentials

Security & cloud.

Credentials supporting the security and cloud sides of my work.