Lars Evald Andersen

About

Fri, 08 May 2026 00:00:00 +0000

I’m a senior software developer based in central Denmark. I’ve been around computers since age six and writing software professionally for seventeen years.

The path has been broad rather than narrow — I’ve worked across the Microsoft enterprise stack (ASP.NET, C#, WCF, IIS Smooth Streaming, WMDRM/PlayReady, Transact-SQL), the LAMP world (PHP, MySQL, Apache, Nginx), and modern web tooling (React, Vue, ES6, Docker, AWS), with a side curiosity in F#, Python, and a little assembly. A consistent thread runs through every role: optimization and modernization.

CV

Fri, 08 May 2026 00:00:00 +0000

Senior Software Developer · Allingåbro, Denmark

evaldnet@gmail.com · +45 42 59 90 98 · github.com/evaldnet · linkedin.com/in/evaldnet

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Profile

Senior software developer with 17 years of professional experience and over 23 years of building software, spanning the Microsoft enterprise stack, the LAMP world, and modern web tooling. A consistent thread across every role has been optimization and modernization — query tuning, page-speed work, server migrations, and refactoring legacy systems toward modern standards while keeping production stable. Danish vocational-trained practitioner, MySQL DBA-certified, with formal sysadmin background that informs how I approach infrastructure.

What Clockwork showed us about a 30-second list page

Fri, 21 Nov 2025 00:00:00 +0000

A list page in our admin was hitting PHP’s max_execution_time and crashing. The fix wasn’t one big rewrite — it was ten small ones, found by spending an afternoon making Clockwork actually show us where the time went.

Reverting a 4-month refactor in 29 minutes (and shipping it again a week later)

Mon, 10 Nov 2025 00:00:00 +0000

A 138-file permissions refactor we’d worked on since June merged at 12:28. By 12:57 it was reverted. The bug was small. The revert was the right call. The version we re-shipped a week later was the same diff plus one fix — and a different way of proving it was safe before the merge button.

Rector without the level sets: upgrading PHP 7.3 → 8.4 the boring way

Mon, 15 Sep 2025 00:00:00 +0000

Rector ships with version ‘sets’ that bundle hundreds of rules to take your code from PHP X to PHP Y. We didn’t use any of them. Here’s the 20-rule cherry-pick we used to upgrade a multi-repo PHP 7.3 codebase to 8.4 — and why hand-picking turned out to be the smaller risk.