Jiggy B. Palconit — Software Developer Resume

Summary

Software developer specializing in modern Java (Spring Boot) and enterprise legacy systems, offline-first Flutter/SQLite apps, and real-time TypeScript systems. Proven track record maintaining production ERP modules, engineering greenfield microservices with optimistic concurrency, adhering to strict architectural conventions (such as AutoCloseable session lifecycles), and designing event-driven architectures.

Technical Skills

Languages

Java (7/8, 17, 21), Dart, TypeScript, JavaScript, SQL (MySQL, PostgreSQL, SQLite), HTML5/CSS3

Backend & ERP

Spring Boot 3.3 (Web, Security, Actuator), Java Swing, Hibernate/JPA, JDBC, JasperReports, Java RMI

Mobile & Web

Flutter (BLoC architecture, SQLite, local-first), React Native (Expo, Reanimated), Vite, PWA, Supabase

Engineering

Legacy Modernization, Concurrency Control (Optimistic @Version, Queue-Locking), Multi-Branch Sync, Git

Work Experience

Software Developer • Viajero Motorcycles Inc.

Feb 2026 – Present

Engineered greenfield JRF system: Built a Job Request Form service in Spring Boot (Java 17) bridging into a legacy Java 7/8 ERP database with optimistic concurrency (@Version) and zero regressions across production branches.
Eliminated UI freezing on EDT: Refactored legacy Swing reporting and transaction modules by enforcing AutoCloseable session lifecycles, background worker isolation, and indexed SQL queries.
Built algorithmic inventory engine: Implemented automated reorder calculation (ROQ: AMC × [ABC - SM]) with day-anchored windowing across dealership branches, cutting stockout risk.
Prevented multi-store race conditions: Designed transaction lock checks and out-of-stock guard restrictions for cross-branch transfers (Viajero ↔ Jicjam).
Engineered FACC ↔ ACC bridge: Built bidirectional inter-module accounting adapter with reusable transaction components, in-memory caching (HashMap), and locked payroll queues.

Technical Support VA • Prime Developments — User account sync and virtual environment troubleshooting

2024 – 2025

IT Support (SPES) • LGU General Santos City (ICTD) — PC hardware diagnostics and LAN routing across offices

2023

Shipped Projects

Rent-a-Box SQLite Ledger GitHub

Offline-first Flutter retail management APK with 53 passing automated tests; features real-time vacancy audits and automated seller payout reconciliation.

Flutter • Dart • SQLite • BLoC

Race Clock LED Wall PWA Live PWA

Real-time dual-screen timing app syncing director controls to stage LED walls under 5ms latency via localStorage bus; deployed to live sporting heats.

TypeScript • Vite • WakeLock • PWA

MIS Operations Calendar Live App

Enterprise scheduling system with Supabase PostgreSQL and automated 07:30 daily cron dispatches (pg_cron) pushed directly to company Viber channels.

Supabase • PostgreSQL • Edge Functions

Langga Loan Tracker Mobile

Mobile debt ledger app featuring 60 FPS Reanimated spring physics, intuitive amortization schedules, and zero-latency local state persistence.

React Native • Expo • Reanimated

Education & Certifications

BS in Information Technology (BSIT)

STI College General Santos City • 2019 – 2024 • DICT Scholar

Computer Systems Servicing NC II (CSS NC II)

TESDA • Certified 2024 • SAP Business One Certified