Тарас

Taras Lynets
Frontend Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація»)
Kyiv, Ukraine linkedin

Summary of Qualifications
Frontend Developer with 4 years of commercial experience in architecting and delivering complex,
scalable web applications — from enterprise Resource Planning and Human Capital Management (HCM)
to laboratory monitoring and data platforms. Proficient in modern React ecosystems (React 18/19,
TypeScript, TanStack Query, Zustand), high-performance data tables, complex forms with schema
validation, and real-time visualization dashboards. Focused on code quality and reliability — writing unit
and component tests, enforcing strict code standards, and supporting smooth release cycles. A
collaborative, adaptable team player skilled in performance optimization and cross-functional
integration.

Professional Experience
React.js Software Developer, Yalantis 04/2026 – 09/2026
DeepFluid — Laboratory Instrument Monitoring Platform
Frontend Developer · React 19, TypeScript, MUI v9, TanStack Query v5, React Router v7
A multi-tenant SaaS platform for laboratories analyzing air content and foam in fluids (oils, lubricants)
using specialized measurement devices (Inline and All-in-One units).
Real-time live session monitoring: built streaming data display via NDJSON (chunked HTTP stream,
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parsed on the fly) — the air content/foam chart updates live as snapshots arrive from the device, no
polling involved. Includes a "backfill" mechanism (fetching historical points when opening an already-
running session) with a seamless transition into live mode.
Custom interactive charts built on uPlot (canvas-based, not SVG) for high-performance rendering of
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thousands of points: zoom/pan via drag and mouse wheel, detailed tooltips per snapshot, T10/T50
timing markers, a moving-average overlay alongside raw data, snapshot-photo indicators, threshold
highlighting (warning/alert), and correct handling of multiple timezones (tenant vs. device vs. browser).
Session comparison (Compare): side-by-side KPI tables with best/worst-value highlighting, air-
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content and bubble-size-distribution charts across multiple sessions at once, with favorited sessions
visually highlighted across all views.
Dashboard: aggregated widgets (favorite devices with mini live charts, recent sessions, "today"
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summary stats), plus air-content chart filtering by site/project/device/session.
Report generation (PDF-style quick/full reports) reusing the same charting components as the live
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view.
Worked across RBAC (platform- and tenant-level roles/permissions), an audit log of user actions, i18n
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(EN/DE), and multi-tenant management of devices, sites, projects, and users.
React.js Software Developer, Yalantis 11/2025 – 04/2026
Enterprise ERP & HRM Suite
Frontend Developer · React 18, TypeScript, Vite, React Query, MUI v5
A robust ecosystem of enterprise applications designed to automate business resource planning and
human capital management.
Core module development: built the Surveying and Invoicing modules from the ground up using React
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18 and TypeScript.

Server-state management: implemented efficient data-fetching and caching logic with React Query,
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reducing redundant network calls and keeping UI state in sync with the backend.
Data visualization dashboards: built interactive, chart-driven dashboards using MUI v5 components
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for reporting and business insights.
Build tooling migration: migrated the project's build system to Vite, streamlining the development
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workflow and improving local build/reload speed.
Form handling: managed complex, multi-step form logic and validation across the app using React
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Hook Form and Yup schema validation.
Notifications & API integration: implemented user-facing feedback (toasts/alerts) via Notistack and
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integrated the frontend with backend services through REST APIs.
React.js Software Developer, Smart Business 02/2022 – 08/2025
SMART HCM & LMS Platform
Frontend Developer · React, TypeScript, Redux, WebSockets
Enterprise-scale platform for end-to-end recruitment, learning management (SCORM, interactive quizzes),
goal tracking, and Microsoft Outlook-integrated event scheduling.
Figma-to-code: translated complex Figma mockups into accessible, pixel-perfect UI components.
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Dynamic forms: engineered multi-step forms (Formik / React Hook Form, Yup) with complex
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conditional validation rules.
Real-time progress tracking: implemented real-time video learning progress tracking via WebSockets,
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streaming playback state and automatically syncing completion metrics with the backend.
Enterprise system integration: integrated Microsoft Dynamics through custom Web Components,
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enabling cross-platform enterprise workflow interoperability.
Design system ownership: authored and documented an isolated component library in Storybook to
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standardize frontend development across teams.
Localization & access control: managed application-wide i18n localization and role-based client-side
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routing.
White-label & release support: handled customized white-label deployments and provided active
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continuous release support.

Skills
Programming Languages Core & Frameworks State & Data Fetching
JavaScript, TypeScript React 18/19, React Router, Web TanStack Query (React Query),
Components, HTML5, Redux, Zustand, Context API,
UI Libraries & Styling CSS3/SaaS Axios, WebSockets
MUI (v5/v6), Emotion, Styled-
components, SCSS, Recharts, AI & Developer Productivity Testing & Tools
uPlot, Storybook Claude Code, GitHub Copilot — Vitest, React Testing Library,
code review, refactoring, test Vite, i18next, jsPDF, Git, GitLab,
Forms & Validation generation Azure DevOps, Husky, ESLint
React Hook Form, Formik, Zod,
Yup

Additional Accomplishments
Legacy Migration: Spearheaded the legacy code migration to modern React, boosting overall runtime
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performance, reducing technical debt, and shortening feature delivery cycles.
Performance Optimization: Enhanced core metrics through code splitting, image/route lazy loading,
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memoization, and network payload reduction, leading to significantly lower page load times.

Education
Master’s Degree, Master's Degree — Kyiv National University of Trade and Economics 2011 – 2017