Agoston Fung

CV

Wed, 01 Jul 2026 00:00:00 +0000

Agoston Fung

Budapest, Hungary
+36 20 338 7096
agoston.fung@gmail.com
linkedin.com/in/agostonfung

Engineer with 20 years of experience building and scaling technology solutions across corporate and startup environments. Proven track record in leading teams, delivering complex projects, and driving both technical and organisational growth. Experienced in architecture, cloud, agile delivery, and aligning technology with business goals. Equally comfortable as a hands-on technologist, strategic leader, or startup advisor.

Photography

Wed, 01 Jul 2026 00:00:00 +0000

A few photos from travels over the years, alongside the engineering. All shot on trips around Europe and Asia; a wider set is up on Pexels. Click a photo to view it full screen.

Seven Sisters, Seaford, England

Winter lake, Hungary

Krk, Croatia

Lake Balaton, Hungary

Terraced mountains, China

Koh Samui, Thailand

Angkor Wat, Cambodia

Barcelona, Spain

AI fatigue is real

Tue, 30 Jun 2026 00:00:00 +0000

Running agents instead of writing code felt like 10x productivity. Then I broke, and needed 4-6 weeks to recover.

GUI is dead, long live agents

Mon, 15 Jun 2026 00:00:00 +0000

Command line, thick clients, the web, and now agents. The interface itself is starting to look optional.

AI can rewrite your legacy app in hours

Wed, 27 May 2026 00:00:00 +0000

Big-bang rewrites used to be a bad idea for good reasons. AI agents just changed the math.

The unexpected side effect of LLMs: the burden of knowledge

Wed, 20 May 2026 00:00:00 +0000

AI is supposed to make us more productive. Once you know something, though, there’s no going back - and that has a cost of its own.

I vibe-coded a Sudoku app and learned that product taste doesn't come free

Tue, 12 May 2026 00:00:00 +0000

AI can write all the code. It still can’t magically create a great product - the taste has to come from somewhere else.

Seven strategies for safe AI agent database access

Wed, 06 May 2026 00:00:00 +0000

Unrestricted database access for AI agents is dangerous. Excessive restrictions defeat the purpose. Here’s how to find the middle ground.

Being a software engineer is weird when it comes to family

Thu, 30 Apr 2026 00:00:00 +0000

My team spent years automating £50 million in promotional income. A three-day Sudoku app got me a standing ovation at dinner.

Pressure reveals patterns

Tue, 28 Apr 2026 00:00:00 +0000

Under stress, people fall into a handful of default patterns - and pressure is the fastest way to find out who you’re actually working with.

About

Mon, 27 Apr 2026 00:00:00 +0000

I’m Agoston Fung, a software engineer based in Budapest, Hungary, with 20+ years in the industry. My career has spanned startups and large enterprises — including EY, bp, and Tesco — and I currently consult through Equal Experts.

I like working at the intersection of clean code, pragmatic systems design, and teams that ship. This site is where I think out loud about that work.

Background

Currently: Consultant, Equal Experts
Previously: EY, bp, Tesco, and a handful of startups
Education: Kingston University, London (Distinction)
Languages: Hungarian (native), English (professional)

Selected publications

Different coping strategies amongst individuals with grandiose and vulnerable narcissistic traits — Journal of Affective Disorders, 2016
Introduction to the Symfony framework (Hungarian) — 2007

Elsewhere

The bio above is intentionally short — feel free to expand it with specific roles, dates, and projects you’d like to highlight.

The AI honeymoon is over

Sat, 25 Apr 2026 00:00:00 +0000

The real cost of AI writing code is starting to show - what the data is telling us about the human/AI balance in software work.

How can an LLM write code?

Sun, 29 Mar 2026 00:00:00 +0000

It can feel like AI is thinking. What’s actually happening is closer to pattern recognition - and that frame makes LLMs much easier to reason about.

Claude separation anxiety

Thu, 26 Mar 2026 00:00:00 +0000

A small clinical case study of a new programming-related condition. Symptoms may include reviewing code like a museum visitor observing ancient artifacts.

I don't review the code anymore. I review the thinking.

Tue, 24 Mar 2026 00:00:00 +0000

On a busy week, I ship around 10,000 lines of code changes a day. There is no way to review all that line by line — and that’s not what review should be anymore.

Autocomplete for your personality

Tue, 10 Mar 2026 00:00:00 +0000

Sam Altman said millions are wasted on people thanking LLMs. I keep doing it anyway. Here’s why - and what your brain does when you don’t.

Less than a year ago

Sat, 07 Mar 2026 00:00:00 +0000

A friend told me software wouldn’t need humans to write code. I laughed. Twelve months later, here’s the receipt.

To be a better vibe-coder, become a horrible boss

Sun, 15 Feb 2026 00:00:00 +0000

Want to fully exploit AI coding tools? Time to dust off your worst-boss instincts. A short field guide.

My AI productivity: 4,200 lines of code per day

Wed, 17 Dec 2025 00:00:00 +0000

Nearly 300,000 lines of code changed in my GitHub over 10 weeks. Most of it is throwaway. That’s exactly the point.

My favourite DuckDB extensions

Thu, 11 Dec 2025 00:00:00 +0000

Three categories of DuckDB extensions I keep reaching for: cloud storage, semi-structured files, and external SQL databases.

Stuck on a problem? Walk away.

Tue, 09 Dec 2025 00:00:00 +0000

The counter-intuitive way to solve hard problems isn’t to grind harder. It’s to leave them alone. Here’s the research backing it - the incubation effect.

To be an engineer, you need at least a BSc

Sun, 07 Dec 2025 00:00:00 +0000

Five myths I’ve wrestled with over 20 years in software - degrees, imposter syndrome, burnout, career breaks, and the days you hate coding. None of them are true.

My memory is basically that of a goldfish

Fri, 05 Dec 2025 00:00:00 +0000

On SQL syntax, fan-fiction ALTER TABLE statements, why I still need the SQL magician, and what AI actually liberated us from.

The software engineer career is dead

Wed, 03 Dec 2025 00:00:00 +0000

The ‘AI killed the dev career’ headline is wrong. Here’s why now is actually a great time to start in software.

AI coding tools and the 5 stages of grief

Sat, 29 Nov 2025 00:00:00 +0000

Developers aren’t just adapting to AI - we’re grieving. A field guide to the five stages, with sample dialogue.

Once you go DuckDB

Mon, 24 Nov 2025 00:00:00 +0000

DuckDB is the newest game-changer in data analytics: serverless, just-a-file, and faster than Postgres or SQLite for the analytics queries you actually want to run.

7 strategies to figure out what you want

Sat, 22 Nov 2025 00:00:00 +0000

Twenty years of trying things - career breaks, travel, study, side projects, therapy - and what each one taught me about the question we all keep asking ourselves.

AI code generation tips #1: use comments

Sat, 15 Nov 2025 00:00:00 +0000

When you need to make small changes to existing code, don’t try to describe everything in one long prompt. Add TODO comments where the changes belong, and let the AI sweep through them.

Echo 'Hello, world!'

Mon, 01 Sep 2025 00:00:00 +0000

First post - a quiet hello and a note on what I plan to write about here.