Oct 2026 – Present
ElevenLabs
Loading your next side quest…
Loading your next side quest…
A LITTLE ABOUT ME
Software engineer at ElevenLabs
I’m a full-stack and product engineer, dad, and curious maker based in London. I like turning difficult problems into useful products, from the first sketch to the details that make them feel right.
This is a home for the things I make along the way. Some solve a very personal problem. Some start with “what if?”
ALONG THE WAY
ElevenLabs
Poolside
Built Poolside's enterprise coding assistant in TypeScript, Svelte and Go, initially as a VS Code extension powered by the Laguna model.
YLookup
Short-term contract helping YLookup bootstrap after acquiring the Rowan AI codebase. YLookup is an Excel add-in that operates on spreadsheets using LLMs.
Pactio → Rowan AI
Full Stack engineer at a lean startup (~$50M valuation). Pivoted from Pactio to Rowan AI (Excel AI plugin).
IMG Arena
Hands-on senior engineering role solving complex technical problems across multiple departments.
IMG Arena
Led a department of 25 people, organizing processes, ensuring technical delivery met highest standards, and facilitating interdepartmental communication.
IMG Arena
Led a team of 5, overseeing delivery of live sports statistics widgets for UFC, Tennis, and Golf—now used by millions monthly.
lajili.com LTD (for CMC Markets)
Helped CMC Markets transition from Angular to React, enhanced application performance by identifying memory leaks.
Gamesys
Developed HTML5 games using PixiJS/WebGL. Created the game engine used by the team using reactive and functional programming patterns.
Cinime, Innes, Toxicode, Learnscaper
Game development and web development roles building everything from cinema-synced mobile games to educational serious games and CMS platforms.
IN THE TOOLBOX
GOOD COMPANY
Johan possesses a rare combination of creativity and technical excellence. He doesn't just tackle challenges head-on – he takes a step back, analyses the problem from multiple angles, and devises solutions that are not only effective but also elegant and efficient. This ability to think outside the box has been instrumental in the success of several key projects at IMG Arena including our award-winning Event Centres. Beyond his technical prowess, Johan is a fantastic team player. He's always willing to share his knowledge and expertise, fostering a collaborative environment where everyone can learn and grow, demonstrated by owning and running our regular show-and-tell sessions across technology.
Johan was a key engineer at Pactio who made a meaningful impact across our product. He's highly versatile, consistently picking up complex problems and driving to solid, practical solutions. Notably, he redesigned our Excel AI architecture, significantly improving speed and reliability. I'd happily recommend him to AI or SaaS teams looking for an impactful, high-ownership engineer.
Johan is brilliant. By the end of his first week he already had a working solution for the number one engineering problem we had at the time. He relentlessly smashed through anything we threw at him and quickly became the go-to person for the most complex engineering problems and design choices.
WHERE IT STARTED
Three-year program specializing in game development with focus on mobile/web games and JavaScript. Also gained expertise in game design and Adobe software suite.