Case studies

Platform engineering from my day job, and projects I deliver end to end for small businesses. Each one follows the same outline: situation, task, action, result.

01

Platform engineering

A maritime-AI vessel-monitoring platform: 1,000+ vessels, 1M+ metrics a minute.

  1. +85% throughput, same cloud cost

    +85% pipeline throughput at the same cloud cost

    Re-engineering the service that persists 1M+ sensor metrics a minute. Measure on production-shaped data first, then fix concurrency and write contention.

    Tech lead · load testing, design and implementation · Java 21 · Spring Boot · PostgreSQL

  2. 6× faster key widgets

    6× faster vessel dashboards with a new Aggregator service

    A Java 21 service built from scratch that turns captains' noon reports and telegrams into daily and voyage-leg aggregates, so key widgets read ready answers.

    Designed and built the service from scratch · Java 21 · Spring Boot · PostgreSQL

  3. −10–15% fleet CO₂ (est.); helped retain key clients

    CII emissions tracking that helped keep enterprise clients

    Two Spring Boot services that track vessels' Carbon Intensity Indicator, the IMO rating ship operators are measured on every year.

    Built both services · Java · Spring Boot · PostgreSQL

Table 1 — Platform engineering. Each row opens its case study.
02

Small-business projects

Websites, search and sales channels, built and run end to end.

  1. 4 days from WordPress to a live site in 4 languages

    Guesthouse site rebuilt in 4 days, in four languages

    A family guesthouse's old WordPress site, rebuilt as a fast static site in four languages, with Search Console and consent-based analytics.

    Sole developer · build, SEO, analytics, deploy · Astro · TypeScript · Google Search Console

  2. 116 paintings on a new EN/IT site, synced from Etsy daily

    An artist's Etsy shop, new site and socials, wired into one path to buying

    For an oil painter in Italy: Etsy listings rewritten for search, a new English/Italian site synced from Etsy daily, and Pinterest, X and Instagram posts.

    Site, listings, social channels and tooling · Astro · Etsy Open API · Pinterest API

Table 2 — Small-business projects. Each row opens its case study.
03

Work with me

Hiring a Staff or Lead backend engineer?

I'm looking for a fully remote role on a B2B contract, with real ownership of architecture on data-heavy systems.

or write to windgub@gmail.com

Need senior backend help on a project instead? See freelance and contract work.