ihor kuhel Software Developer

About Me

Engineering approach, clean architecture, and precision in every detail.

I specialize in building high-performance web applications and interfaces focused on speed, accessibility, and resilience. Designing scalable digital products with robust architecture and modern tech stack.

Projects & Experience

Projects & Domains

Key engineering milestones: from distributed payment gateways to fleet routing platforms and enterprise data analytics.

Core Domains:
FintechLogistics & TelemetryB2B SaaSHigh-Load APIsDesign SystemsReal-Time Analytics
01 Fintech
2025

Fintech Core Gateway

High-throughput financial gateway handling real-time interbank transaction orchestration, settlement pipelines, and automated fraud detection.

TypeScriptNode.jsRedisKafkaPostgreSQLDocker
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02 Logistics
2024

Logistics Fleet Engine

Dynamic routing and real-time fleet telemetry platform reducing delivery overhead through algorithmic dispatch optimization.

GoReactWebSocketPostGISDockerNginx
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03 SaaS
2024

B2B SaaS Analytics

Data-dense enterprise analytics suite delivering real-time metric aggregation, cohort retention analysis, and custom report builders.

TypeScriptVue 3ClickHouseFastAPITailwind CSS
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04 Web3 & DeFi
2025

Decentralized Settlement Layer

Decentralized settlement protocol featuring trustless smart contract execution, automated market-making, and zero-knowledge transaction verification.

SolidityRustTypeScriptEthers.jsThe GraphHardhat
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05 E-Commerce
2024

Global E-Commerce Core

Scalable headless commerce infrastructure powering localized storefronts, unified multi-currency checkout, and real-time inventory sync.

TypeScriptNext.jsGraphQLRedisPostgreSQLStripe
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06 Design Systems
2023

Micro-Frontend Design System

Unified enterprise design system and component architecture standardizing design tokens across 12 independent micro-frontends.

TypeScriptWeb ComponentsAstroTailwind CSSStorybookPlaywright
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07 High-Load APIs
2023

Distributed Telemetry Hub

High-frequency telemetry ingestion pipeline processing over 50k RPS with sub-second stream indexing, anomaly detection, and real-time alerts.

RustGoKafkaClickHouseGrafanaKubernetes
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All Projects
Expertise & Directions

Engineering Focus

Core engineering tracks: from resilient distributed interfaces to scalable backend infrastructure and precision UI/UX design systems.

01

Frontend Architecture

SPA / SSR / Islands / High Performance

Architecture & Philosophy

Architecting resilient, ultra-fast, and accessible client interfaces with minimal JS runtime, deterministic state management, and full i18n support.

Core Responsibilities

  • Zero-JS by default & Astro Islands architecture
  • Core Web Vitals optimization, anti-FOUC theme engine & speed
  • Strict TypeScript end-to-end typing & component isolation

Key Stack & Methodology

TypeScriptAstroReactNext.jsCSS Tokens / OKLCHWeb Vitalsa11y
02

Backend & Distributed Systems

Scalable APIs / Microservices / Data Integrity

Architecture & Philosophy

Building fault-tolerant backend services, integrating high-security payment gateways, optimizing database queries, and designing event-driven message architectures.

Core Responsibilities

  • High-throughput RESTful & gRPC microservices development
  • Third-party API, payment processing & webhook integrations
  • Relational database modeling, transactions & Redis caching

Key Stack & Methodology

Node.jsPostgreSQLRedisREST / gRPCDockerCI/CDEvent-Driven
03

UI/UX & Design Systems

Design Tokens / Strict Geometry / Ergonomics

Architecture & Philosophy

Engineering-driven user experience: building tokenized design systems, strict geometric rhythm, mathematically precise typography, and touch ergonomics.

Core Responsibilities

  • Authoring and maintaining tokenized CSS design systems
  • Designing complex enterprise user journeys & data dashboards
  • Mobile touch adaptation & Desktop-First interface fidelity

Key Stack & Methodology

FigmaDesign SystemsOKLCH Color SpaceFluid TypographyMicro-InteractionsWCAG Contrast
Questions & Answers

FAQ

Answers to frequent questions regarding engineering standards, architectural mindset, and collaboration format.

01
Architecture

What tech stack and architectural approach do you choose for projects?

The focus is on modern web standards, modular architecture, and performance: Astro for content-rich SSG/SSR apps with Zero-JS by default, React/Next.js/TypeScript for complex dynamic systems, and clean tokenized OKLCH CSS.

02
Process

How is the development workflow and timeline estimation structured?

Projects are broken down into transparent milestones and weekly sprints. We first align on architecture contracts and design tokens, followed by iterative clickable increments, automated CI/CD, and predictable time-to-market.

03
Engineering

Do you handle server-side logic, APIs, and databases?

Yes, expertise covers scalable REST and gRPC APIs on Node.js, relational database schema modeling in PostgreSQL, Redis caching layers, event-driven queues, and seamless integrations with third-party payment gateways and CRM.

04
Optimization

How do you guarantee top-tier performance and SEO?

Every project is audited against 100/100 Core Web Vitals in Lighthouse: lazy island hydration, critical font preloading, semantic HTML5 hierarchy, WCAG AA accessibility, and rich Open Graph structured metadata.

05
Collaboration

What is your communication and collaboration format?

Asynchronous communication with clear documentation, structured issue tracking, regular demo checkpoints, a clean Git flow with peer review, and end-to-end ownership from initial commit to production deployment.

Under the Hood

About the Project

Architectural choices, engineering stack, and development methodology.

01 / 03

Engineering Motivation & Principles

This portfolio was engineered as a manifesto of an uncompromising approach to software development: zero template component libraries, strict geometric discipline, and raw performance. The goal was to prove that modern web experiences can be visually engaging and interactive while maintaining instantaneous response times without heavy client-side runtimes.

CORE PRINCIPLES
  • Zero Third-Party UI: Complete architectural freedom without the constraints of off-the-shelf component libraries.
  • Strict Geometry: Uncompromising grid layout, balanced proportions, and sharp geometric silhouettes.
  • Extreme Speed: Relentless byte-by-byte optimization along the critical rendering path.