01 — Featured
Helios
A real-time observability platform that turns billions of daily events into calm, legible dashboards engineers actually trust.
Full-stack developer & programming teacher
Jaroslav Savchenko
I build production web platforms — fast, accessible, and quietly engineered. I also teach people to make them.
Selected workSelected work
02 — Featured
Lexicon
An interactive platform for learning to program in the browser — real code execution, instant feedback, and a curriculum that respects the learner.
03 — Featured
Vellum
A headless editorial CMS built for long-form publications — structured content, fast authoring, and a reading experience that stays out of the way.
About
I'm Jaroslav Savchenko, a full-stack developer and programming teacher. I care about the parts of software people feel but rarely name — how fast a page settles, how a layout breathes, how a system behaves under load.
My work leans editorial and restrained: strong typography, generous space, and motion used sparingly. I build with a small, deliberate stack and ship sites that score perfect on performance and accessibility because that's the baseline, not the goal.
Alongside building, I teach — translating hard ideas into something a beginner can hold. Both halves sharpen each other.
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