AlekseyNakhimov

FRONTEND DEVELOPER.ポカヨケ (Poka-yoke). Code. Logic. Details.

React and TypeScript: analytics dashboards and tools engineers use every day — from commercial analytics to VK infrastructure automation.

Saint Petersburg · on-site / hybrid / remote

View projects Get in touch

About

An engineer who writes frontend

I came to frontend from systems engineering: I work with VK server infrastructure and know the cost of a single mistake in an interface that engineers rely on.

Hence my principle — ポカヨケ (poka-yoke), mistake-proofing: previews before irreversible actions, validation before the request, clear diagnostics instead of silent failures. That is how both a commercial analytics dashboard and the CLI that freed my team from hours of manual work are built.

Experience

React, TypeScript and tools for engineers

06/2023 - presentFull-time

VK

Systems Engineer / Internal Tools Developer

Server infrastructure and engineering process automation

Built and shipped a CLI tool (TypeScript / Node.js) for server infrastructure planning: a batch of 20-100 hosts is processed in minutes instead of 1-5 hours of manual work.
The tool is used daily by 10 engineers on the team and is distributed as an internal npm package.
Designed a typed API contract layer, OData queries, Excel data validation and a preview of changes before they are applied.
Scenarios follow the mistake-proofing principle: all-or-nothing validation, confirmation of irreversible operations, diagnostics with row and stage context; key scenarios are covered by tests.

TypeScript
Node.js
CLI tooling
REST / OData
Zod
Testing

03/2026 - 05/2026Part-time

Sensemachine

Frontend Developer

Visitor analytics for the Atom pavilion at VDNH (Moscow): emotions, traffic and heatmaps from camera data

Built an analytical SPA from scratch: React 19 (+ React Compiler), TypeScript, FSD — KPIs, attendance and satisfaction trend charts, emotion distribution, zone comparison and heatmaps; ~13,000 lines of code.
Wrote a typed GraphQL client: caching, request deduplication, ref-counted aborts, TTL and invalidation — without heavy libraries.
Optimized the first screen: independent KPI card queries, deferred below-fold panels and chunk prefetch on hover.
Implemented client-side export of real XLSX and ZIP files without xlsx/exceljs, plus correct timezone and DST handling in daily aggregations.

React 19
GraphQL / Hasura
Chart.js
FSD
Performance
Export workflows

Core skills

Stack for SPAs and interface systems

Core

TypeScript
React
Next.js
Node.js
Vite

Architecture & State

FSD
Zustand

UI & Accessibility

SCSS (BEM)
A11y
Chart.js

Data & APIs

GraphQL (Hasura)
REST
OData
PostgreSQL
Zod

Quality & Tooling

node:test
ESLint
Stylelint
Biome

Portfolio

Projects

Work focused on componentization, responsiveness, state management, accessibility and clean interface structure.

Atom — Visitor Analytics

An analytics dashboard for the Atom pavilion at VDNH (Moscow): visitor emotions, traffic, heatmaps and reference data from camera feeds.

Commercial project · private product

Custom GraphQL client: caching, request deduplication, ref-counted aborts
Client-side XLSX/ZIP export and draft/applied filters with cascading resets
Prioritized first-screen loading and chunk prefetching

Screenshot of the Atom analytics dashboard interface

Engineer CLI for VK

An internal CLI that automates server infrastructure planning: Excel sheets become chains of API operations. The source code is closed under an NDA.

NDA · production

A batch of 20-100 hosts in minutes instead of 1-5 hours of manual work
Typed API contracts and a preview of changes before they are applied
All-or-nothing validation and error diagnostics with row and stage context

Unsplash Collection

An application for searching Unsplash photos, viewing image details and managing custom collections.

Search and a responsive masonry grid with lazy loading
Photo detail pages and download tracking
Collections and infinite pagination cache

Screenshot of the Unsplash Collection interface

Task Manager

A React SPA for managing multiple boards, tasks and a drag-and-drop workflow.

Create and edit tasks, boards and tags
Local cache via Zustand and sessionStorage
A11y, keyboard navigation and a custom ContextMenu

Screenshot of the Task Manager interface

Education

Practice, foundation and growth

Higher education

Admiral Makarov University (GUMRF), 2010-2015, Information Systems and Technology

Courses

Result School — professional frontend development course, October 2022 - March 2023 (6 months, team-based SPA development)