Alfie Pelicano

Full-Stack Developer

Building tools that actually solve problems

GNSS geodesy data wrangler turned full-stack developer — because precision scales better with code. Tracking how the ground moves and building web apps have more in common than you'd think: both demand accuracy, patience, and a taste for solving problems most people never notice. I create practical, human-centered tools for everyday challenges — parking chaos, lab bookings, and affordable math worksheets that make teachers’ lives easier.

GitHub View Projects

Featured Projects

Where precision scales with code — real tools solving real-world problems

🔬
In Production

PipetGo

A B2B marketplace connecting companies with ISO 17025-certified laboratory testing services across the Philippines.

Problem: Businesses had no centralized source for accredited labs — data was scattered, outdated, and often missing accreditation details.
Solution: A searchable, filterable directory with quotation features that directly connects certified labs and clients through verified profiles.
Stage: Currently undergoing User Acceptance Testing with initial partner organizations before pilot deployment.
Next.js 14 TypeScript Prisma NextAuth Zod Vitest
View Code
🚙
In Production

Carpool Coordinator

A community carpooling platform that helps residents post and coordinate ride shares with live updates and vehicle info.

Problem: Carpool plans were managed in chat threads — easy to lose track of, and difficult to match riders by time or route.
Solution: A structured posting system with schedule matching, vehicle details, and interest tracking for organized community rides.
Impact: Deployed on Render for a residential group; improved participation rates and reduced coordination time for parents and commuters.
Node.js Express PostgreSQL Vanilla JS Playwright
View Code
➕
In Production

Window Cards Generator

A printable math worksheet generator for multi-digit arithmetic, designed for SPED and early-grade classrooms.

Problem: Teachers needed customizable math materials without recurring costs from commercial workbook sets.
Solution: A browser-based generator that prints reusable arithmetic worksheets on demand, adjustable by range and operation type.
Impact: Used in classrooms for SPED and early learners — providing a free, flexible alternative to paid materials.
Vanilla JS HTML5 CSS3 Print CSS
Live Demo View Code
Washboard dashboard showing real-time queue management with customer bookings
🚿
In Production

Washboard

Car wash queue and booking system that replaces pen-and-paper operations with contactless QR bookings and a real-time dashboard.

Problem: Paper-based queue tracking offered zero visibility, required manual position management, and caused long waits during peak hours.
Solution: Contactless QR bookings combined with a receptionist dashboard that provides live queue updates, position reordering, magic-link check-ins, and status tracking.
Impact: Production-ready (130/130 tests passing, 94/100 security score); piloting with car wash operators to refine real-world workflows.
Next.js 14 React 19 TypeScript PostgreSQL Passport.js Vitest
View Code
📂
Active Development

Drive Archaeologist

Python CLI for excavating and organizing legacy GNSS (GPS) data from old drives with inconsistent file structures.

Problem: Decades of GNSS data scattered across drives: random directories, duplicates, and missing metadata — making retrieval and reuse difficult.
Solution: Automated scanner that detects GNSS file types (RINEX and others), extracts metadata, flags duplicates, recommends reorganization, and generates safe migration scripts.
Stage: Phase 1/4 — foundation scanning and classification; built for geodesists managing legacy scientific archives.
Python 3.11+ Click CLI Rich Terminal Pandas Pytest
View Code
🤖
Active Development

NightCoder Orchestrator

Python-based automation engine that reads ADRs, generates structured implementation plans, and produces git-style patches using local LLMs (via Ollama).

Problem: Engineering tasks tied to ADRs required repetitive planning and manual patch authoring across multiple repos — slow, error-prone, and inconsistent.
Solution: A multi-agent runner that scans ADRs, synthesizes a step-by-step plan, generates patches, logs runs, and optionally applies changes through a safety-gated workflow.
Stage: Phase 2/4 — stable planner/coder loop; refining patch validation and multi-repo robustness.
Python 3.11+ Ollama deepseek-r1 (1.5B) qwen2.5-coder (1.5B) Subprocess / Shell Scripts JSON Config Markdown ADR Parsing
📄
Active Development

SciWriter Orchestrator

Automated writing pipeline that converts research notes into structured drafts — with refinement passes, terminology checks, LaTeX export, and optional slide generation.

Problem: Drafting scientific manuscripts from scratch is slow, inconsistent, and prone to terminology drift across revisions.
Solution: A configurable multi-stage workflow that generates a draft, performs iterative refinement, normalizes terminology, and outputs LaTeX or slide formats.
Stage: Phase 2/4 — pipeline functional with draft/refine/terminology steps; improving LaTeX and slide output consistency.
Python 3.11+ Ollama qwen2.5 (3B Instruct) Shell Script Pipeline LaTeX / Beamer Terminology DB (JSON) Config-Driven Workflow

Technical Skills

Frontend

  • Next.js 14 (App Router)
  • React 19 (Server Components)
  • TypeScript
  • Vanilla JavaScript
  • Tailwind CSS
  • shadcn/ui

Backend

  • Node.js / Express
  • Next.js API Routes
  • Prisma ORM
  • NextAuth.js / Passport.js
  • Zod Validation

Database & Infrastructure

  • PostgreSQL (Advanced SQL)
  • Neon (Serverless)
  • Supabase

Python & Automation

  • Python 3.11+
  • Click CLI / Rich Terminal
  • Pandas (Data Processing)
  • Pytest (Testing)
  • Shell Scripting
  • Ollama (Local LLMs)

Testing & Quality

  • Playwright (E2E)
  • Vitest (Unit)
  • Pytest (Python)
  • Git Workflows

Tools & Workflows

  • AI-assisted Development (Claude Code, ChatGPT) - for test and data generation, refactoring, and debugging
  • LaTeX / Beamer
  • ADR-driven Architecture
  • Linux / Bash

About Me

I used to work with GNSS data to study how the Earth shifts — during earthquakes and in the quiet, gradual movements between them. Now I build web apps, but the mindset’s the same: precision, spatial reasoning, and an appreciation for complex systems (looking at you, CSS Grid).

My philosophy is simple: build things that solve real problems for real people. No moonshot hype or blockchain detours — just thoughtful tools that make everyday work a little smoother.

I believe in:

  • Test-driven development — if it’s not tested, it’s not done
  • Systematic problem-solving — big problems get smaller when you break them right
  • Clear documentation — your future self deserves clarity
  • Practical design — tech should help people, not just impress developers

When I’m not coding, I’m helping my kids with homework or automating something that probably didn’t need automating — because curiosity doesn’t switch off after work.

Let's Connect

Building something interesting? Need a developer who actually ships?
Let's talk.

alfieprojects.dev@gmail.com GitHub