Full Stack Engineer Resume

Full-Stack Software Engineer  •  Rails · Go · React · Docker  •  AI-Augmented Development with Claude Code

West Covina, CA – Open to Remote (U.S.)  |  +1 626-998-2531  |  This email address is being protected from spambots. You need JavaScript enabled to view it.  |  GitHub  |  LinkedIn

Full-Stack Software Engineer with 3+ years of production experience designing and deploying secure, containerized applications. Actively uses Claude Code — Anthropic’s AI coding assistant — at the end of the development cycle to clean up and optimize existing code. Specializes in Ruby on Rails and Go APIs, React/TypeScript SPAs, and Docker-based CI/CD pipelines from wireframe to production.

Brings a disciplined engineering mindset to every layer of the stack: API design, SPA architecture, background processing, infrastructure automation, and deployment. Committed to building systems that are reliable, maintainable, and built to appeal to end users.

Integrates Claude Code into engineering workflows to deliver higher-quality software:

• Claude Code (Anthropic CLI) — applied post-development to clean up, optimize, and refine Rails, Go, and React codebases
• Prompt engineering for code generation, inline documentation, and debugging complex multi-service interactions
• AI-assisted performance analysis and optimization of database queries, API payloads, and background job pipelines
• Leverages Claude Code to analyze existing codebases, identify technical debt, and implement targeted improvements

Backend: Ruby 3 / Rails 7 (API-only architecture), Go (REST APIs), PostgreSQL 17 / PostGIS, Redis-backed Sidekiq (ActiveJob), Devise / Devise-JWT, RSpec

Frontend: React, TypeScript, Vite architecture, Axios, SPA routing & state management, leveraging SCSS for consistent UI design across pages.

DevOps & Infra: Docker / Docker Compose, GitHub Actions CI/CD, GitHub Container Registry (GHCR), Nginx reverse proxy, TLS termination, VPS deployment, SSH orchestration

AI & Dev Tools: Claude Code (Anthropic), prompt engineering for development workflows, AI-assisted code review & refactoring. VS-Code and NeoVim are code editors of choice. 

CMS & Platforms: WordPress, Joomla, GiveWP donation platform, Stripe payment integration, SMTP configuration

Media Systems: Jitsi conferencing platform, FFmpeg media processing pipelines.

Email processing: Comfortyable wth optimizing mail MX, SPS, DKIM, and DMARC records to ensure consistent delivery of emails.

Amigos Unite — Full-Stack Community Platform

amigosunite.org

Full-stack community event coordination platform built end-to-end from wireframe to production, integrating a security-hardened Rails API with advanced location intelligence, media processing, and resilient async infrastructure.

Backend Architecture

• API & Serialization: Rails 7 API-only application with object-oriented, convention-driven JSON output via active_model_serializers, jbuilder, and json-api-serializer; external API communication via HTTParty
• Authentication & Security: Stateless, scalable auth via Devise, Devise-JWT, and JWT; multi-provider login via OmniAuth; suspicious activity detection with Authtrail; brute-force login protection via Rack::Attack rate limiting; keyed-hash encryption of sensitive fields using Blind Index
• Location Intelligence & Media: Location search and geocoding via Geocoder and Google Maps Service Ruby; Google Cloud Vision for location-based image discovery; images fetched, formatted, and resized locally using Active Storage, Image Processing gem, and Ruby-Vips
• Infrastructure & Safety: Asynchronous background processing via Sidekiq and Redis (ActiveJob adapter); antivirus scanning of all uploaded files with Clamby
• Testing: Behavioral test coverage via RSpec to verify adherence to defined application behavior
• AI Tooling: Claude Code applied post-development to clean up and optimize the existing codebase

Frontend Architecture

• React + TypeScript SPA with AuthContext-based authentication flow and role-based UI gating
• Token-based SCSS architecture, Axios API integration, card/grid interface system

Infrastructure & Deployment

• Fully containerized Docker stack: API server, Sidekiq worker, PostgreSQL, Redis, and Nginx
• GitHub Actions CI/CD pipeline building Docker images and publishing to GHCR with automated VPS deployment via SSH orchestration
• Nginx reverse proxy with TLS termination; environment-isolated secrets management

Groovey Task Manager — Full-Stack Go + React Application

github.com/sagacic-tim/Todo_Axios_Api

Calendar-driven task management application demonstrating a clean, production-grade separation between API service, data persistence, frontend UI, and containerized infrastructure — modeled after real-world deployment pipelines.

• Backend (Go): RESTful API built with Gin (HTTP routing) and GORM (ORM) over PostgreSQL; strict layered architecture — transport (HTTP handlers) → service (business logic) → repository (data access) → models (persistence) — for testability and long-term maintainability
• Task Lifecycle: Full CRUD API (GET, POST, PATCH, DELETE /api/tasks) managing tasks across four states: scheduled, rescheduled, completed, and dismissed; tasks include title, description, due date, and state
• Frontend (React/TypeScript): Vite-built SPA presenting a calendar grid interface where tasks are organized by day; Axios API communication with popup editor interactions for inline task management
• Infrastructure: Fully containerized via Docker Compose (API, frontend, PostgreSQL); Nginx reverse proxy routing /api to the Go service and / to the React SPA; Let’s Encrypt TLS; server-level Basic Auth protection for demo deployments
• CI/CD: GitHub push → CI build → publish images to GHCR → VPS pulls and deploys via docker compose up -d
• Testing: Go test suite covering repository, service, and transport layers independently; SQLite in-memory databases used for fast, isolated test execution across all layers

Full-Stack Developer

The Global Village Children’s Project — 2020 – Present

• Designed and implemented Stripe-based donation platform that generated over $40,000 in charitable contributions
• Migrated payment infrastructure from PayPal to Stripe under tight operational constraints, maintaining continuity of donation flows
• Built subscription lifecycle management and webhook processing pipeline via GiveWP integration
• Maintained WordPress infrastructure, deployment configuration, CI workflows, and SMTP email delivery systems
• Applied Claude Code to analyze and refactor legacy PHP/WordPress customizations, improving maintainability and reducing technical debt

Web Developer

Boston 9/11 Truth — 2018 – 2020

• Designed and maintained full website and content infrastructure for a media-focused organization
• Managed hosting configuration, platform operations, and deployment pipelines

Web Developer / Founding Member

9/11 Truth Action Project — 2014 – 2017

• Built website, donation platform, and member-facing web infrastructure from the ground up
• Integrated JWPlayer video streaming system delivering ad-free video content to subscribers
• Managed VPS hosting infrastructure, DNS configuration, and deployment operations

Computer Science Coursework (Upper Division)

California State University, Fullerton

Physics Coursework (Upper Division)

California Polytechnic University, Pomona

Associate of Arts — Business Administration

Fullerton College