Software Engineer · AMBALONG.DEV

John Alvin Ambalong

Backend Development / DevOps

Curious by nature, stubborn by habit.
I build real things, ship them, and show up every day to get better.

Status : Open to workLocation : Walla Walla, WAFocus : Backend / DevOps

View Projects

Currently Building

Pangu Terminal

Resource-optimization platform for Wuthering Waves

panguterminal.ambalong.dev

Pangu Terminal dashboard showing resource optimization interface

–Service layer queries 10+ static cost tables across Resonator and Weapon upgrade paths, keeping game rules independently testable without touching the database or web stack
–Reconciliation engine detects 3-to-1 synthesis opportunities from surplus lower-tier materials and applies EXP potion cross-rarity equivalence to verify plan completeness
–Inventory edits trigger Turbo Stream re-renders of the full synthesis family, reflecting recalculated craftable counts without a page reload or separate API call
–Waveplate Optimizer ranks farming sources by deficit coverage and estimates runs and Waveplate cost per material, converting EXP deficits to higher-rarity drop equivalents
–Farming Advisor integrates RubyLLM to pipe live reconciliation and optimizer data to an AI model, returning a prioritized plain-language farming recommendation per plan
–Versioned REST API across seven endpoints with SHA-256 bearer token authentication and per-key rate limiting at 60 requests per minute

Ruby on Rails 8.1HotwirePostgreSQLDockerKamal 2RubyLLMGitHub Actions

Live Demo View Code

Other Work

Additional Projects

Security / PowerShell

EFI BootMgr Cert Check

PowerShell audit script deployed via ManageEngine across several departments to validate boot manager binaries against the Windows UEFI CA 2023 chain. Identified that Get-AuthenticodeSignature returns incorrect issuer data for EFI binaries and switched to X509Certificate.CreateFromSignedFile as the correct extraction path.

PowerShellUEFISecure Boot

Code

CLI / Game Logic

Ruby CLI Chess

Terminal chess engine in pure Ruby with no framework. Models Board, Piece, and Player as distinct domain objects with clean separation of responsibilities. Validates legal moves for all pieces via directional constraints and collision detection, then confirms check and checkmate by deep-cloning board state to simulate each candidate move before committing.

RubyOOP

Code

Toolkit

Technical Skills

Technologies and concepts I work with to build production-ready applications.

Production and Deployment

Ruby on Rails 8·PostgreSQL·Kamal 2·Docker·DigitalOcean·GitHub Actions

Application Development

Hotwire (Turbo / Stimulus)·RESTful API design·ActiveRecord·RubyLLM·JavaScript·ERB

Architecture and Design

Service-layer Architecture·MVC·OOP·API versioning·Token auth·Rate limiting

Quality Assurance

TDD·Minitest·RSpec·CI on every PR·94%+ service-layer coverage

About

The person behind the work

Software engineer, early career, graduating June 2026 with an AAS in Software Design from Walla Walla Community College. Currently working in Tech Services at Walla Walla Community College, and shipping production software on the side.

I build on the side with the same discipline I bring to work. Pangu Terminal is live in production.

I read, I go to the gym, I show up consistently.

EducationAAS Software Design, WWCC — June 2026

LocationWashington State

Blogambalong.dev/blog

Contact

Looking for the Right Team

I'm looking for an engineering role, remote or Washington State.
If you're building something real and want someone who ships and takes ownership, let's talk.

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