Elias' Page

Elias de Jong (Linkedin)

Full stack developer based in the Netherlands

Hello, my name is Elias.

I build and maintain software applications for Dutch industry, specifically for coal processing plants of Enerco BV, a market leader in low-ash metallurgical coals for silicon and ferrosilicon industries in Europe.

Enerco factory Born Enerco factory Flushing

Left: Enerco factory in Born, Netherlands - Right: Enerco factory in Vlissingen, Netherlands

Enerco Dash

Enerco Dash is the software application used at both of Enerco's production plants to perform the following tasks:

  • 1. Capture timeline & history of real-time factory data
  • 2. Generate shift reports, mailed to relevant persons
  • 3. Track screening machine configurations
  • 4. Laboratory software for ash & screening analyses
  • 5. Reports on factory output (quality control)
  • 6. Routine maintenance job tracking
Enerco Dash software impression

Example screenshots from Enerco Dash software

Summary

Enerco Dash was commissioned in early 2023, based on the need to automate and modernize reporting processes of which many were still manual and based on paper. In particular, laboratory personnel spent a significant portion of their productive hours on repetitive tasks that involved writing down of analysis results.


The new laboratory software with the intuitive 'block-based' timeline interface allowed sample weights to be read directly from a digital scale and recorded inside the database. All information recording duties were now handled by the system, freeing up valuable operator time.


Over time, the software evolved to acquire more capabilities like maintenance and quality control, ultimately becoming the main source of truth for plant managers into their production shifts. Several other legacy software programs were replaced in the process.


Enerco Dash is operational to this day (March 20, 2026) and has greatly contributed to operational productivity at Enerco BV, helping to modernize and streamline reporting for operators and management alike.

Technologies used

Backend:

  • - Python / FastAPI + Jinja templates
  • - MS SQL Server
  • - MongoDB
  • - nginx
  • - Docker compose

Frontend:

  • - HTMX
  • - Alpine.js
  • - Tailwind CSS

With Gitlab for version control and CI/CD autodeploy.

Publications

Eliminating Serialization Cost using B-trees

Paged Out! magazine, 8th edition

Lite³: A research-based experimental serialization library written in C, encoding JSON-data in a custom zero-copy binary format. The serialization boundary can be avoided entirely, eliminating the need for a parser while still exposing a 'dictionary-like' API (get/set) directly on a serialized buffer with zero extra allocations.

Lite³ serialization format inforgraphic Lite³ serialization benchmark results

Open source benchmarks vs state-of-the-art serialization formats:

- Simdjson Twitter API Data Benchmark: 30.72x speedup vs simdjson DOM, 42.86x vs yyjson, 225.69x vs RapidJSON

- Cpp Serialization Benchmark: 29.42x vs cereal, 8.64x vs Cap’n Proto, 242.30x vs Google Flatbuffers

Lite³ is possibly the fastest schemaless serialization format in the world.

GitHub repository

Documentation site

Contact

I am currently looking for opportunities on long-term or contracting basis, on-site, in or outside NL.


mail address