Full-stack Developer · PL
Since 1995, I have delivered field applications, enterprise systems, commercial software, mobile and web products, and modern AI services—from planning and implementation to release and operations.
Career highlights
My work expanded from field and enterprise software into mobile, web, backend, and AI products. These highlights focus on the problems solved and systems actually delivered.
Built and operated MES, logistics, factory automation, CRM, resort operations, legal, compliance, board, and security systems. I analyzed existing business processes and systems, supported international rollouts, and improved operational stability.
I planned, built, and released LetsDeal, SumTube, and PriceRanker. Beyond interfaces, I handled authentication, data, files, notifications, external APIs, privacy guidance, release builds, and the full path to production distribution.
Commercialized an AI-based academy timetable product and developed a viewer supporting about 200 file formats and a POS-linked promotion system. Earlier work includes military security software, an accessible web browser, agricultural settlement, and power-grid monitoring tools.
Built document RAG, STT and meeting-minutes services, live interpretation and presentation assistance, coding agents, image analysis, and content summarization products. I connect Python/FastAPI backends, Flutter or web interfaces, asynchronous jobs, state tracking, and recovery so AI works inside real products and workflows.
Project archive
From enterprise operations and field systems to user products and modern AI services, each item reflects a verified role and implementation scope.
Worked across requirements traceability and WBS management, mobile meeting notes, AI chat, an STT-to-LLM pipeline, agents, and mobile security integrations.
A Flutter app combining AI-generated meeting notes from recordings, SSE-streamed AI conversations, and image analysis of field photos with SOP-guided risk-assessment drafts.
A Flutter app that turns live transcripts into RAG-assisted scripts for interpretation, meetings, and presentations, built as a voice-and-context foundation for future AR glasses.
Implemented an asynchronous WhisperX service with large-audio segmentation, parallel processing, ETA calculation, result caching, and restart recovery.
Connected relevant-file selection, change planning, approval-based patching, validation, and failure analysis with a VS Code extension and offline VSIX distribution.
An operations-focused system using external REST/WebSocket APIs with staged execution, failure rollback, restart recovery, live charts, and alerts.
Extended an open-source research project with BLE RSSI stabilization, Geofencing and sensor-based power saving, a watchdog, and scan failure recovery.
Built daily, weekly, and monthly time blocking with recurring schedules, Supabase live sync, natural-language queries and confirmed changes, read-only Google Calendar import, and production deployment.
Delivered MES implementation and adoption projects for production sites in Korea, China, and Poland, plus logistics and factory-automation systems in China.
Built and operated legal, compliance, board, security, broadcasting, and meeting-room systems, extending selected services to US and China offices.
Commercialized an AI scheduling application, developed a viewer for about 200 file formats, and deployed POS-synchronized promotion software across 50 stores.
Capabilities
I connect business analysis and legacy understanding with product delivery, backend and data design, modern AI integration, and operations.
Analyzing workflows and existing systems to build and improve MES, CRM, support, and field applications.
Java · C#/.NET · Delphi · Oracle · MSSQL · MESTurning user problems into clear interfaces and completing Flutter apps and modern web services as releasable products.
Flutter · Dart · React · Next.js · Vue · NuxtCreating REST/WebSocket APIs and data structures for asynchronous work, long-running jobs, external APIs, and live connections.
Python · FastAPI · PostgreSQL · Supabase · RedisIntegrating RAG, STT, LLMs, and automation into products and workflows with testing, deployment, recovery, and production constraints.
LLM · RAG · STT · Docker · Test · RecoveryHow I work
From initial alignment to validation and handover, I keep decisions and evidence visible throughout the project.
Separate functional and non-functional needs and define done.
Identify external integrations, data, performance, and scope gaps.
Connect interface, API, data, and operations in one design.
Share working increments early and record changes and decisions.
Deliver core tests together with deployment and operations guides.
In an initial discussion, I will clarify the business problem, users, current systems, data and integrations, schedule, and acceptance criteria.
Email a1techglb@gmail.com ↗