Ілля

ILLIA KLEN
S e n io r F r o n t e n d E n g in e e r | T ea m L ea d | A I Au t om a tio n
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Rzeszow, Poland

References available upon request

SKILLS ABOUT ME
Senior Frontend Engineer and Frontend Team Lead with 9+ years of
Frontend commercial experience building and maintaining e-commerce and
telecommunications products. Led a team of five frontend developers and
React | Next.js | TypeScript the ground-up redevelopment of komfort.pl, taking ownership of frontend
architecture, code quality, delivery, CI/CD, and production stability. Strong
JavaScript | HTML | CSS expertise in React, Next.js, TypeScript, state management, and monorepo
architecture, with hands-on experience in Node.js, NestJS, Docker, Kubernetes,
Redux | XState | React Query and Nginx. Recently focused on AI automation and internal operational
systems for digital businesses. Available to start immediately.
Tailwind CSS | Sass | Styled Components

Material UI | Framer Motion | GSAP
WORK EXPERIENCE
Monorepo | SSR | Vite | Webpack
Founder / AI Automation Engineer 2025 - present
Independent Projects - AI Automation and Digital Products
Backend
Built and operated a digital-products business helping experts monetize personal
Node.js | NestJS | Express brands through online courses.
Created websites, sales funnels, payment integrations, analytics, advertising workflows,
and internal automations.
REST APIs | Service integrations Built an AI-powered operations system for client knowledge, employee tasks, finances,
advertising data, and project workflows.
Prototyped the system with Obsidian and OpenClaw, then migrated key workflows to
Databases Claude.
Applied AI daily across research, operations, content, and automation. Launched
@illiaklen for the Polish market.
PostgreSQL | MySQL | MariaDB

MongoDB | Firebase Senior Frontend Developer 2024 - 2025

Orange Polska
DevOps

Docker | Kubernetes | CI/CD
Maintained and extended customer-facing functionality for orange.pl within a frontend
organization of around 20 engineers.
Ubuntu | Nginx | PM2 | Monitoring
Developed reusable components and application flows in a monorepo architecture.
Collaborated with frontend, backend, QA, product, and design teams on delivery and
production support.
AI Automation Contributed to code reviews, refactoring, bug fixing, and production stability.
Tech: Next.js, TypeScript, Redux, XState, Tailwind CSS, Framer Motion, Monorepo, Jira.

Claude | OpenClaw | Obsidian

LANGUAGES Frontend Team Lead 2022 - 2024
Sklepy Komfort S.A.
ENGLISH - BASIC / TECHNICAL
Led five frontend developers during the complete ground-up redevelopment of komfort.pl.
Owned frontend architecture, planning, code reviews, mentoring, technical decisions, and
POLISH - ADVANCED delivery.
Coordinated work within an IT department of around 30 specialists.
UKRAINIAN - NATIVE Delivered the new e-commerce platform over approximately two years. It remains in
production.
Developed partner projects and managed deployments, monitoring, server configuration,
RUSSIAN - FLUENT and stability.
Supported a production environment serving around 2,000 concurrent users.
Tech: Next.js, React, TypeScript, Redux, React Query, Node.js, Docker, Kubernetes, Nginx,
PM2, Bitbucket, Jira.

EDUCATION Frontend Team Lead 2020 - 2022

ShopParty, Miami, USA, Remote
BACHELOR OF SOFTWARE ENGINEERING
Donetsk National University
Led frontend architecture and development of a feature-rich e-commerce platform.
2016 - 2020 Conducted code reviews and supported project planning and Jira management.
Delivered web and React Native functionality, including real-time features with Agora
RTC and Socket.io.
Tech: React, Next.js, React Native, Redux, Node.js, Firebase, Docker, CI/CD.
SELECTED TRAINING

REACT + REDUX - PROFESSIONAL
Udemy, Remote | 2019
Full-Stack Team Lead 2018 - 2020
FULL JAVASCRIPT + REACT COURSE
MGGPAERO, Tarnow
Udemy, Remote | 2019

Led technical delivery in a small Scrum team.
PRACTICAL JAVASCRIPT (ADVANCED)
Designed project architecture, reviewed code, maintained Jira, and managed CI/CD
Udemy, Remote | 2020 and server environments.
Tech: React, TypeScript, NestJS, Docker, Styled Components, Material UI, Ant Design.
LAYOUT MASTER
WebForMySelf, Remote | 2020

MERN E-COMMERCE FROM SCRATCH
Udemy, Remote | 2021
Frontend React Developer 2017 - 2018
VEDIDEV Company, Remote

CAREER RESULTS Built Next.js and React interfaces using Redux-Saga and TypeScript.
Created reusable UI components with Material UI and Styled Components.
Tech: GitLab, Next.js, Redux-Saga, TypeScript.
9+ years of commercial experience

Led teams of up to 5 developers

Rebuilt komfort.pl from scratch
Freelance Web Developer 2016 - 2017
Supported around 2,000 concurrent
users Freelancehunt | Remote

Worked in a 20-person frontend Delivered multiple web projects end to end for remote clients.
organization Managed scope, deadlines, client communication, and technical implementation
independently.

Frontend, DevOps, and AI automation
experience

CORE SKILLS

Frontend architecture and delivery

Technical leadership and mentoring

Production infrastructure and CI/CD

E-commerce and digital products

AI agents and operational automation I consent to the processing of my personal data contained in this CV for current
and future recruitment processes in accordance with Regulation (EU) 2016/679
(GDPR).