01 Architecture and cost
80%
fewer edge-compute invocations
Simplifying image delivery
I removed an extra caching layer and changed how requests moved through the image-delivery pipeline.
Read the storyI spent nearly 12 years building and running software for professional photographers (cloudspot.io), working across the product, infrastructure and engineering team.
I draw on experience across technologies and learn what each problem requires. I follow the evidence, test ideas, and look for the smallest change that solves the problem well.
My experience spans application architecture, distributed systems, cloud infrastructure and data processing, with a focus on reliability, performance and making systems easier to change.
Hi, I'm Oleh.
2014 - 2026
I joined as a freelance engineer and stayed through several stages of the company's growth.
Product and infrastructure
A few projects, the problems behind them, and the decisions I helped make.
01 Architecture and cost
80%
fewer edge-compute invocations
I removed an extra caching layer and changed how requests moved through the image-delivery pipeline.
Read the story02 Product evolution
Incremental migration
an acquired product brought into the platform
I proposed and helped implement a gradual integration of an acquired product into the main application.
Read the story03 Development workflow
Weeks to hours
developer onboarding time
I built a local environment that let engineers run the application and its payment workflows on their own machines.
Read the storyI like to see the path through space and time: how a system fits together, how it might evolve, and which choices leave room for what's next.
I work through the options with the team, weighing what each would take to build, run and maintain. Then I help implement the change and leave it in a form others can understand.
I'm also interested in building a company with the right people. If you're looking for a technical partner, I'd be happy to talk.
Things I've built to investigate an idea or understand how a tool works.
Kev-4B and Jev tested on game control, decisions within an agent, and 1,253 public function-selection cases. Explore input formats, confidence estimates, and individual answers.
A comparison of CLM and Jev as game controllers, on bounded agent decisions, and on 1,253 public function-selection cases. Explore the methods, results, and individual answers.
An interactive article following an Amp plugin from a TypeScript file through startup, command registration, and execution.
How trusted redirects can be exploited in phishing campaigns, and what services can do to mitigate the risks.
When a corrupted image is more than a rendering bug.