AMBALONG.DEV

John Alvin Ambalong

Software Engineer

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

Production

Pangu Terminal

Progression planner and farming optimizer for Wuthering Waves

panguterminal.ambalong.dev

Pangu Terminal dashboard showing resource optimization interface

–Service layer encapsulates game rules across sourced drop rate tables, decoupling business logic from controllers and keeping each feature independently testable.
–Versioned REST API across seven endpoints with SHA-256 bearer token authentication and per-key rate limiting at 60 requests per minute.
–Reconciliation engine detects 3-to-1 synthesis opportunities from surplus lower-tier materials and applies EXP potion cross-rarity equivalence to verify plan completeness.
–Waveplate Optimizer estimates farming runs per material deficit, converts higher-rarity EXP drops to rarity-2 equivalents for run estimation, and falls back to the nearest available SOL3 phase when drop rate data is missing.
–Inventory edits trigger scoped Turbo Stream re-renders across the entire synthesis item group, automatically reflecting recalculated craftable counts without a page reload or client-side framework.
–Farming Advisor integrates RubyLLM to pipe live reconciliation and optimizer data to an AI model, returning a prioritized plain-language farming recommendation per plan.

Ruby on Rails 8.1HotwirePostgreSQLDockerKamal 2RubyLLMGitHub Actions

Live Demo View Code

Other Work

Additional Projects

Security / PowerShell

EFI Boot Manager Cert Check

PowerShell compliance script deployed via ManageEngine Endpoint Central across multiple departments to validate boot manager binaries for Windows UEFI CA 2023 signing compliance. Identified that Get-AuthenticodeSignature and Get-PfxCertificate return incorrect issuer data for EFI binaries and resolved it by switching to X509Certificate.CreateFromSignedFile after tracing it to a known PowerShell bug.

PowerShellUEFISecure Boot

Code

CLI / Game Logic

Ruby CLI Chess

Terminal chess engine in pure Ruby with no framework. Validates legal moves for all pieces via directional constraints and collision detection, and confirms check and checkmate by deep-cloning board state to simulate each candidate move.

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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