Work / Selected systems

Not a gallery.
A record of decisions.

Products are shown here as systems under pressure: the constraint, the engineering response, and the measurable evidence that the response worked.

Portfolio capability map

Five systems. One engineering practice.

Follow each project through the capabilities it exercises. Bright cells mark substantial, documented responsibility—not a technology checklist.

ProjectArchitectureReliabilityProduct UXPerformanceDataKnowledge
01Tinkoff fintech
02Kanban
03Engineering Wiki
04Polaris
05WikiMasters
Documented responsibility Adjacent capability

01 / Production evidence

The flagship system

Four and a half years of product evolution, expressed through the architectural decisions that kept delivery moving.

02 / Built in public

Smaller systems, sharp questions

Public products used as engineering laboratories—not decorative side projects.

Independent product · Async reliabilityLive

Reliable Kanban

A full-stack Kanban system built to make drag-and-drop feel immediate while protecting task state when requests fail, sessions overlap, or clients fall behind.

Versionedwrites reject stale task updates explicitly
Open case study
Product engineerOptimistic UX · concurrency · recovery2026
Knowledge productGrowing

Frontend Engineering Wiki

A growing map of frontend engineering connecting first-principles explanations, interview reasoning, quick references, and deliberate practice.

224explanations supporting recall and deliberate practice
Open case study
Creator and engineerInformation architecture · learning systems2026 — ongoing
AI development workspaceWorking prototype

Polaris

A Next.js and TypeScript browser IDE connecting a file tree, code editor, terminal, live preview, GitHub import/export, and AI assistance.

Import → edit → exportrepositories move into and out of the browser workspace
Open case study
Independent frontend and product engineerRuntime isolation · AI workflows · adapters2026
Collaborative knowledge platformMVP

WikiMasters

A collaborative wiki MVP for creating, editing, and reading articles. Authored knowledge stays central, supported by media, cached reads, and AI summaries.

60s cachearticle-list cache expires and is invalidated after writes
Open case study
Full-stack engineerPersistence · caching · storage · AI2026
Open to ambitious systemsHave a product whose complexity is starting to show?Let's turn the pressure points into clear engineering decisions.
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