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Showing posts with the label Software Engineering

A New Collection of Thoughtful Learning Apps — Now Available on iOS & Android

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I’m excited to share a set of mobile apps I’ve recently completed and published on both the Google Play Store and the Apple App Store. These apps are designed with a simple goal in mind: to make meaningful, structured content more accessible, whether you’re studying theology or improving your English vocabulary. 📱 Now Available on Both Platforms All apps are live and available for download: Google Play Developer Page: https://play.google.com/store/apps/dev?id=5835943159853189043 Apple App Store Developer Page: https://apps.apple.com/ca/developer/q-z-l-corp/id1888794100 📖 Theology & Confession Study Apps For those interested in Reformed theology and classical Christian teachings, I’ve developed a series of apps that present foundational texts in a clean, focused reading format: The Belgic Confession Canons of Dort Heidelberg Catechism Westminster Shorter Catechism Each app is designed to provide a distraction-free experience, making it easier to read, reflect, and revisit these im...
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From Building Software to Defining Purpose: A Tech Lead Reflection

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From Building Software to Defining Purpose: A Tech Lead Reflection Today, as a tech lead, I joined a leadership training that unexpectedly shifted how I think about teams, ownership, and impact. We didn’t talk about frameworks, architecture diagrams, or performance tuning. Instead, we focused on something much more fundamental: Learning to Ask “Why” As engineers, we are trained to ask how : How do we implement this? How do we optimize it? How do we fix it? But leadership starts with a different question: Why does this team exist? Without a clear “why,” teams drift. Work becomes reactive. Decisions feel disconnected. The Single Statement Framework The training introduced a simple but powerful way to define a team’s purpose using one sentence: To <ACTION> for <PEOPLE> so that <IMPACT>. This structure forces clarity. Action — What do we actively do? People — Who do we serve? Impact — What meaningful change do we create...
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How a JPA save() Call Silently Overwrote My Data (and How to Fix It)

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How a JPA save() Call Silently Overwrote My Data (and How to Fix It) I recently encountered a subtle but dangerous issue in a Spring Boot + JPA application. There were no errors, no exceptions, and no failed transactions — yet a database column was silently overwritten with NULL . If you are using Spring Data JPA and updating the same table from multiple endpoints, this is something you should be aware of. The Simplified Scenario We had two REST endpoints updating the same entity, but different fields. The code below is simplified and mangled for illustration. Endpoint A – updates an external reference EntityX entity = repository.findByKey(refId); // update external reference entity.setExternalRef("ABC123"); repository.save(entity); Endpoint B – updates customer email EntityX entity = repository.findByKey(refId); // update email only entity.setEmail("user@example.com"); repository.save(entity); The assumption was that Endpoint B would ...
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