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Career Brief

Ju-cheol Park

Web & Mobile Developer

jukrap628@gmail.comjukrap.vercel.appgithub.com/jukrap

Triphos Co., Ltd.

Web & Mobile Developer

Business web applications and Android integration

    Selected work

    Web / AI

    AI Document and Data Analysis Platform

    Full-stack development, from document upload and search to analysis, source inspection and Gemma 4 integration.

    Implementation

    • Included adjacent paragraphs and same-document section and table references. Budgeted messages and schemas with a tokenizer, reviewed missing evidence selectively, and retained source passages and quotations through final synthesis.
    • Split claims into batches that fit the input budget and requested verdicts by short ID. Rejected altered, duplicate or missing claims, restored original text, and calculated support across all claims.
    • Fixed prose requests being mistaken for table requests. Required item-level explanations and evidence IDs, copied quotations directly from source text, and retained supported answers while marking unresolved items.
    • Removed repeated token counting during table merging and reused page analysis within each request. Returned answers before evaluation and scheduled evaluation separately, yielding to active questions.

    Outcome

    Reduced median local processing from 2,969ms → 672ms with fixed responses and 20 runs per condition. Evaluated 25 claims in 5 batches in a live case and returned answers without waiting for Ragas evaluation.

    Web / API

    Settlement ERP Platform

    Built the ERP web app, key server APIs and data persistence, and extended the existing user-facing web and mobile apps.

    Implementation

    • Built keyboard cell navigation, selection dialogs, and per-row save feedback, retaining edits in rows that fail to save.
    • Highlighted invalid Excel rows and cells for correction and revalidation. Rolled back failed batch imports and returned existing results for repeated requests.
    • Showed affected records, changes, and input-error reasons in the administrator interface while removing unnecessary technical fields.
    Ju-cheol Park01 / 02

    Career Brief

    Ju-cheol Park
    Web & Mobile Developer

    Selected work

    Web / Android

    Logistics Operations Web and Printing App

    Built the complete logistics frontend and Android printing app, covering search, reservations, Excel imports, PC label printing and Bluetooth printer integration.

    Implementation

    • Built shared tables, forms, and modals, connecting server APIs to workflows from search and reservations through Excel previews and print requests.
    • Identified code that was unnecessary on entry and loaded pages and Excel libraries only when needed.
    • Wrapped PC label addresses by measured text width and fitted the remaining address into the final line.

    Outcome

    Initial JavaScript entry file: 2,405.50 kB → 616.59 kB, about 74% smaller. Comparison of build outputs, not measured loading time.

    Web

    Stock Operations Admin Web

    Built the complete React frontend for a stock administration web app using MSW mock APIs.

    Implementation

    • Built list, search, detail, and create/edit screens with shared components, including column pinning, resizing, and reordering.
    • Separated draft filters from submitted conditions in order history. Restarted same-filter searches from the first page and guarded against overlapping load-more requests.

    Additional work

    • Member and Inquiry Management Web and App

      Extended an existing solution with member search, editing, merging, inquiries, and attachments. Integrated file selection and image previews in the Android app.

    • Parcel Delivery App

      Updated map-marker selection, current location and return-to-map behavior. Implemented offline delivery-completion saves, request recovery after app restarts and retries after reconnection.

    • Legacy Logistics Customer Support Web

      Implemented distinct messages for parsing, input, and network errors in Excel imports and checked them locally.

    • Daily Information App

      Extended weather, air quality, and alerts using public-data APIs. Built core-first loading and caches by region and information type, distinguishing previous data from unavailable current results after failed refreshes.

    • Chart Preview Page

      Built chart settings panels, data connections, and previews as part of a website that was under development.

    Ju-cheol Park02 / 02