Full-Stack Developer | React, Node.js, Typescript | Web3, Solidity, NFT | Python, ML, LLM/LSTM, MLX
Aktualisiert am 31.03.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.04.2025
Verfügbar zu: 100%
davon vor Ort: 100%
TypeScript
React
Node.js
WebSocket
Flutter
Docker
Kubernetes
Git
PostgreSQL
MySQL
Linux
nginx
Python
Jest
VBA
ActionScript
AWS
Google Cloud
Shopify
E-Commerce
Amazon EC2
Microservices
English
Fortgeschritten
Russian
Muttersprache
Ukrainian
Muttersprache
German
A2 / B1

Einsatzorte

Einsatzorte

Neckartenzlingen (+100km)
Deutschland
möglich

Projekte

Projekte

11 months
2024-05 - now

Machine Learning stock market analysis and Analytics Dashboard

Lead Full-Stack Engineer Node.js/NestJS TypeScript Python ...
Lead Full-Stack Engineer
  • Architected ML-powered stock market analysis platform using Python ML (MLX, scikit-learn, PyTorch, pandas) 
  • Implemented real-time market data processing with WebSocket and Redis 
  • Integrated Stripe subscription model and payment processing
  • Developed internal VBA Scripts
  • E-commerce ERP JTL data structure updates
Stripe Mailgun Twilio Shopify JTL
Node.js/NestJS TypeScript Python React/NextJS PostgreSQL Redis Docker
CyberJus
Zurich (Remote)
1 year 7 months
2023-09 - 2025-03

Web3 Ticketing Platform

Lead Full-Stack Engineer Node.js/NestJS Solidity Web3.js ...
Lead Full-Stack Engineer
  • Led 5-person technical team in Web3 platform development 
  • Developed NFT minting system with 3 generations of Polygon smart contracts 
  • Built full-cycle event management system with ticketing e-commerce and white-label solution 
AWS Sendgrid Polygon
Node.js/NestJS Solidity Web3.js NuxtJS React/NextJS Flutter Kubernetes Amplify Amazon EC2 s3 amplify lambda
Ticketmeta.io
UAE (Remote)
7 months
2023-03 - 2023-09

Restaurant ERP / CRM MVP

Lead Full-Stack Engineer Node.js/NestJS React/NextJS GraphQL ...
Lead Full-Stack Engineer
  • Built comprehensive MVP for POS/ERP Restaurant management system with real-time updates 
  • Achieved sub-second response times using Redis/WebSocket architecture 
  • Devised POS touchscreen terminal devices using ARM architecture mini computers reducing hardware costs by 40% (from $400 to $240 per unit)
Node.js/NestJS React/NextJS GraphQL WebSocket Typescript Redis PostgreSQL
Remote
3 years
2020-03 - 2023-02

B2B Corporate Housing SAAS

Lead Full-Stack Engineer Node.js React TypeScript ...
Lead Full-Stack Engineer
  • Led development of enterprise CRM/ERP system for corporate housing management from scratch, directing a team of five developers.
  • Architected scalable microservices handling 10,000+ simultaneous users with 99.9% uptime 
  • Built GraphQL API layer with 40+ entities and implemented real-time sync reducing decision time from hours to minutes 
  • Reduced operational costs by 45% through GCP infrastructure optimization and automated CI/CD Improved system performance by 70% using Redis caching and PostgreSQL query optimization 
  • Automated 10+ business processes reducing inefficiencies by 40% 
  • Established effective SCRUM practices including code reviews, documentation standards, and team mentoring
Twilio Google Maps API Google Cloud
Node.js React TypeScript GraphQL PostgreSQL Redis WebSocket GCP Docker CI/CD Ant Design
Chairos GMBH
Germany (Hybrid)
1 year 1 month
2019-08 - 2020-08

CRM, Survey Tools, Automations

Senior Full-Stack Engineer React Node.js WebSocket ...
Senior Full-Stack Engineer
  • Created internal survey and automation tools improving efficiency by 30% 
  • Developed Telegram bot reducing report generation from 15 minutes to 15 seconds 
  • Built WebSocket-based trading application reducing processing time from 2 min to 10 seconds 
  • Automated customer request handling reducing manual processing by 70%
React Node.js WebSocket PostgreSQL Redis Ant Design
People Insight
Dubai (Hybrid)
7 years 9 months
2011-11 - 2019-07

various Projects

Middle Full-Stack Engineer Scripting Cron Jobs MS VBA scripts ...
Middle Full-Stack Engineer

  • E-commerce Solutions including Shopify, Woocommerce, Magento
  • Mobile Applications: Created 5+ apps using React Native and Ionic such as Covid-19 tracking,Dating apps, Binary Option trading app, etc.

Scripting Cron Jobs MS VBA scripts Databases SQL Node.js JavaScript TypeScript React Native React VBA Python PHP WooCommerce Shopify Shopify API Google Maps API Stripe API Twilio API Paypal API
Remote

Aus- und Weiterbildung

Aus- und Weiterbildung

14 years 7 months
2010-09 - now

Marketing & E-commerce

Master of Marketing (EQF level 7), Kyiv National Economic University
Master of Marketing (EQF level 7)
Kyiv National Economic University
  • E-commerce in Marketing
  • Digital advertising
  • CRM & ERP systems
  • B2B & B2C interactions

Position

Position

Full-stack Developer

Kompetenzen

Kompetenzen

Top-Skills

TypeScript React Node.js WebSocket Flutter Docker Kubernetes Git PostgreSQL MySQL Linux nginx Python Jest VBA ActionScript AWS Google Cloud Shopify E-Commerce Amazon EC2 Microservices

Produkte / Standards / Erfahrungen / Methoden

Nestjs
Fortgeschritten
Nextjs
Fortgeschritten
React-Native
Fortgeschritten

Profile

Full-Stack Engineer with 10+ years of experience, specializing in Node.js, React.js, TypeScript, andJavaScript. Successfully led multiple technical teams and delivered 6 high-impact solutions acrossvarious domains including E-commerce, ML-powered financial platforms, Web3 platforms, POSsystems, and enterprise B2B web-solutions.


SKILLS & PROFICIENCIES

Frontend:

  • React.js/Next.JS
  • Vue/Nuxt.js
  • Svelte, Material UI
  • Shadcn, Ant Design
  • CSS/SCSS


Backend:

  • Node.js/NestJS
  • GraphQL API
  • REST API
  • WebSocket
  • FastAPI


Data & ML:

  • SQL/PostgreSQL
  • Supabase
  • MongoDB
  • Redis
  • Rabbit MQ
  • BullMQ. MLX
  • scikit-learn
  • pandas
  • PyTorch


DevOps & Cloud:

  • Docker
  • Kubernetes
  • CI/CD
  • AWS
  • GCP


Testing:

  • Jest
  • React Testing Library


Tools:

  • Git
  • Jira
  • Figma
  • Postman


3rd Parties:

  • Stripe
  • Shopify
  • Web3 wallets
  • Paypal
  • Twilio
  • Mailgun
  • Sendgrid
  • SurveyMonkey
  • Google Maps API
  • Mapbox API
  • Telegram API

Programmiersprachen

React
Fortgeschritten
Node.js
Experte
SQL
Fortgeschritten
React-Native
Fortgeschritten
Flutter
Basics
TypeScript
JavaScript
Python
Solidity

Datenbanken

PostgreSQL
Fortgeschritten
MySQL
Fortgeschritten
Redis
Fortgeschritten
MongoDB
Fortgeschritten
Firebase
Fortgeschritten

Branchen

Branchen

  • E-commerce & ERP (Shopify, JTL, Salesforce)
  • Dashboards & CRM
  • B2B Housing and Real-Estate websites
  • Events & Ticketing Platforms
  • Bots & Automations
  • Machine learning

Einsatzorte

Einsatzorte

Neckartenzlingen (+100km)
Deutschland
möglich

Projekte

Projekte

11 months
2024-05 - now

Machine Learning stock market analysis and Analytics Dashboard

Lead Full-Stack Engineer Node.js/NestJS TypeScript Python ...
Lead Full-Stack Engineer
  • Architected ML-powered stock market analysis platform using Python ML (MLX, scikit-learn, PyTorch, pandas) 
  • Implemented real-time market data processing with WebSocket and Redis 
  • Integrated Stripe subscription model and payment processing
  • Developed internal VBA Scripts
  • E-commerce ERP JTL data structure updates
Stripe Mailgun Twilio Shopify JTL
Node.js/NestJS TypeScript Python React/NextJS PostgreSQL Redis Docker
CyberJus
Zurich (Remote)
1 year 7 months
2023-09 - 2025-03

Web3 Ticketing Platform

Lead Full-Stack Engineer Node.js/NestJS Solidity Web3.js ...
Lead Full-Stack Engineer
  • Led 5-person technical team in Web3 platform development 
  • Developed NFT minting system with 3 generations of Polygon smart contracts 
  • Built full-cycle event management system with ticketing e-commerce and white-label solution 
AWS Sendgrid Polygon
Node.js/NestJS Solidity Web3.js NuxtJS React/NextJS Flutter Kubernetes Amplify Amazon EC2 s3 amplify lambda
Ticketmeta.io
UAE (Remote)
7 months
2023-03 - 2023-09

Restaurant ERP / CRM MVP

Lead Full-Stack Engineer Node.js/NestJS React/NextJS GraphQL ...
Lead Full-Stack Engineer
  • Built comprehensive MVP for POS/ERP Restaurant management system with real-time updates 
  • Achieved sub-second response times using Redis/WebSocket architecture 
  • Devised POS touchscreen terminal devices using ARM architecture mini computers reducing hardware costs by 40% (from $400 to $240 per unit)
Node.js/NestJS React/NextJS GraphQL WebSocket Typescript Redis PostgreSQL
Remote
3 years
2020-03 - 2023-02

B2B Corporate Housing SAAS

Lead Full-Stack Engineer Node.js React TypeScript ...
Lead Full-Stack Engineer
  • Led development of enterprise CRM/ERP system for corporate housing management from scratch, directing a team of five developers.
  • Architected scalable microservices handling 10,000+ simultaneous users with 99.9% uptime 
  • Built GraphQL API layer with 40+ entities and implemented real-time sync reducing decision time from hours to minutes 
  • Reduced operational costs by 45% through GCP infrastructure optimization and automated CI/CD Improved system performance by 70% using Redis caching and PostgreSQL query optimization 
  • Automated 10+ business processes reducing inefficiencies by 40% 
  • Established effective SCRUM practices including code reviews, documentation standards, and team mentoring
Twilio Google Maps API Google Cloud
Node.js React TypeScript GraphQL PostgreSQL Redis WebSocket GCP Docker CI/CD Ant Design
Chairos GMBH
Germany (Hybrid)
1 year 1 month
2019-08 - 2020-08

CRM, Survey Tools, Automations

Senior Full-Stack Engineer React Node.js WebSocket ...
Senior Full-Stack Engineer
  • Created internal survey and automation tools improving efficiency by 30% 
  • Developed Telegram bot reducing report generation from 15 minutes to 15 seconds 
  • Built WebSocket-based trading application reducing processing time from 2 min to 10 seconds 
  • Automated customer request handling reducing manual processing by 70%
React Node.js WebSocket PostgreSQL Redis Ant Design
People Insight
Dubai (Hybrid)
7 years 9 months
2011-11 - 2019-07

various Projects

Middle Full-Stack Engineer Scripting Cron Jobs MS VBA scripts ...
Middle Full-Stack Engineer

  • E-commerce Solutions including Shopify, Woocommerce, Magento
  • Mobile Applications: Created 5+ apps using React Native and Ionic such as Covid-19 tracking,Dating apps, Binary Option trading app, etc.

Scripting Cron Jobs MS VBA scripts Databases SQL Node.js JavaScript TypeScript React Native React VBA Python PHP WooCommerce Shopify Shopify API Google Maps API Stripe API Twilio API Paypal API
Remote

Aus- und Weiterbildung

Aus- und Weiterbildung

14 years 7 months
2010-09 - now

Marketing & E-commerce

Master of Marketing (EQF level 7), Kyiv National Economic University
Master of Marketing (EQF level 7)
Kyiv National Economic University
  • E-commerce in Marketing
  • Digital advertising
  • CRM & ERP systems
  • B2B & B2C interactions

Position

Position

Full-stack Developer

Kompetenzen

Kompetenzen

Top-Skills

TypeScript React Node.js WebSocket Flutter Docker Kubernetes Git PostgreSQL MySQL Linux nginx Python Jest VBA ActionScript AWS Google Cloud Shopify E-Commerce Amazon EC2 Microservices

Produkte / Standards / Erfahrungen / Methoden

Nestjs
Fortgeschritten
Nextjs
Fortgeschritten
React-Native
Fortgeschritten

Profile

Full-Stack Engineer with 10+ years of experience, specializing in Node.js, React.js, TypeScript, andJavaScript. Successfully led multiple technical teams and delivered 6 high-impact solutions acrossvarious domains including E-commerce, ML-powered financial platforms, Web3 platforms, POSsystems, and enterprise B2B web-solutions.


SKILLS & PROFICIENCIES

Frontend:

  • React.js/Next.JS
  • Vue/Nuxt.js
  • Svelte, Material UI
  • Shadcn, Ant Design
  • CSS/SCSS


Backend:

  • Node.js/NestJS
  • GraphQL API
  • REST API
  • WebSocket
  • FastAPI


Data & ML:

  • SQL/PostgreSQL
  • Supabase
  • MongoDB
  • Redis
  • Rabbit MQ
  • BullMQ. MLX
  • scikit-learn
  • pandas
  • PyTorch


DevOps & Cloud:

  • Docker
  • Kubernetes
  • CI/CD
  • AWS
  • GCP


Testing:

  • Jest
  • React Testing Library


Tools:

  • Git
  • Jira
  • Figma
  • Postman


3rd Parties:

  • Stripe
  • Shopify
  • Web3 wallets
  • Paypal
  • Twilio
  • Mailgun
  • Sendgrid
  • SurveyMonkey
  • Google Maps API
  • Mapbox API
  • Telegram API

Programmiersprachen

React
Fortgeschritten
Node.js
Experte
SQL
Fortgeschritten
React-Native
Fortgeschritten
Flutter
Basics
TypeScript
JavaScript
Python
Solidity

Datenbanken

PostgreSQL
Fortgeschritten
MySQL
Fortgeschritten
Redis
Fortgeschritten
MongoDB
Fortgeschritten
Firebase
Fortgeschritten

Branchen

Branchen

  • E-commerce & ERP (Shopify, JTL, Salesforce)
  • Dashboards & CRM
  • B2B Housing and Real-Estate websites
  • Events & Ticketing Platforms
  • Bots & Automations
  • Machine learning

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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