Your approach is different. The way you teach is calm, objective, and incredibly valuable, while never feeling dry or boring. You bring clarity and calm into what often feels like complete chaos around AI.
NP
Necati P. Kealy Studio member
Hi, I’m John.
I’m a developer who makes YouTube videos, and I’m looking to bring that skillset to a role within your company.
The role I’m looking for goes by many names. It’s sometimes referred to as Developer Relations (DevRel), Content Engineer, or Developer Advocate.
01 · The channel
My YouTube channel powered my whole income for two years.
It was my software studio’s only marketing channel. Every client came from a video I planned, recorded and edited myself.
Now I’d like to make videos that bring customers to your product.
Views
- Subscribers
- Videos
youtube.com/@johnckealy November 2026
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01 · Discovery phase
I’ll learn the product inside out
I’m hoping now to go deep with one company, learn the product deeply and integrate with the team. That means understanding why the product solves your customers’ and clients’ needs at a level that a random YouTube sponsored segment never could.
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02 · YouTube
I’ll run the YouTube channel
Walkthroughs, real builds and content marketing. Made for the people who’ll actually use your product, and judged on who they bring in, not on views.
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03 · Beyond YouTube
I’ll take it everywhere your users are
Clips and threads on X, answers on Reddit and in your Discord, documentation that follows the videos, and docs your users’ AI coding agents can read and use properly.
02 · Work so far
I’ve been writing code for over a decade.
A PhD in maths, six years as a software engineer, my own studio. The short version is below; the full CV is a click away.
View my full CV-
2024 – now
Founder, my own app studio
Taught non-technical founders to ship their own apps, with courses, a paid community and a developer platform I built. Every client came through my YouTube channel.
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2023 – 2024
Lead software engineer and interim CTO
Architected a B2B platform that put businesses’ own branded apps in the stores. Hired and led the team, and worked with investors on the roadmap and due diligence.
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2020 – 2023
Software engineer
Four roles across legal, real-estate and climate software: made a satellite-data API’s database queries six times faster, wrote its test suite from scratch, and led a real-estate platform’s technical-debt overhaul.
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2016 – 2020
PhD in mathematics, University of Exeter
Large-scale numerical modelling in Fortran and Python, run on high-performance computing systems. Published in peer-reviewed journals.
03 · In their words
People I’ve taught, and people I’ve built with.
From my studio’s members and the founders I’ve worked alongside.
By following the lessons I went from an idea, to actually having a working mobile app with paying users in both the App Store and Play Store.
MB
Matt B. Kealy Studio member
This is the classic case of “it’s not the destination, it’s the journey”. Following the Kealy Studio roadmap not only taught me how to properly setup the foundational framework to build my web and mobile app in a step-by-step learning method, it got me published and established to build future developments. In one word, this course puts you in CONTROL.
Peter Chan WristwatchKeep
My experience with John’s services was truly educational. His advice, especially concerning security vulnerabilities and potential issues I might encounter, truly guided me. Thank you, John!
Ufuk Dinçal Sailors Connect
We had the pleasure of working with John on magicwork. His dedication, passion for results, and ability to iterate swiftly make him an exceptional asset to any team fortunate enough to work with him.
Khrystyna Svarychevska magicwork
I was consistently impressed by John’s deep knowledge of security, app architecture, and development best practices. I learned a tremendous amount from him, and his insights often come to mind during our ongoing development.
Matthew Weiner, MD Pound of Cure Weight Loss
I’ve worked with and alongside many developers, but John’s spirit of collaboration and eagerness to deliver high-quality stands high above anyone in my experience.
Nicholas Upton Flora
John’s methodology has brought real precision, structure, and technical confidence to Thoughtbait. As we build business-critical apps, Kealy Studio’s approach has helped us create a clearer, more scalable development process.
AO
Antony O. Thoughtbait
04 · Get in touch
If your product is something people learn by watching, let’s talk.
Whether or not you’ve thought specifically about hiring for DevRel or Content Engineering, I’d love to get in touch and see what we might build together.
