Web systems for the manufacturing divisions

OtherEnterprise Systems DevelopmentMaintenance & OperationsRequirements Definition

Organisation: YAMATO KOGYO Co., Ltd.
Period: Nov 2022 – Dec 2024
How it started: Assigned
My part: Development through operation and QA, alone (requirements shared with my section manager)
For whom: The manufacturing division (steelmaking)

What I did

Developed several new functions: recording operation stoppages, checking quality standards, extracting operator records into Excel.
Kept folding in what the user departments asked for: alarms for out-of-spec chemistry, over/under display for JIS ship classes, a viewer for process-computer events, a pie chart of scrap composition, automatic import of furnace records from Excel.
Stayed with it end to end, from hearing and defining requirements (shared with my section chief) through development, testing, operation and QA.
Built the alarm features that talk to plant equipment over OPC, together with engineers from the steelmaking and facilities departments.

Wrote by hand, in Java and JavaScript, what the low-code tool could not reach.
Developed custom components for the ETL tool (ASTERIA Warp) to handle OPC communication and the more involved Excel extractions.

I do not stop at what the tool allows
When Grafana or WebPerformer could not do what was needed, I wrote the plugin or the surrounding tooling myself. When the open-source catalog we depend on, tbls, fell short, I filed the issue and the pull request. I read the documentation and the source, and I keep digging until I find the route that actually serves the goal — and where the result is worth sharing, I share it.