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Oleksandr KaradiaurOK

Oleksandr Karadiaur

n8n & AI Automation for Small Businesses

€250/day
Hamburg, DE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Oleksandr

I help small and medium-sized businesses automate recurring manual tasks – from order processing and email workflows to data entry. With n8n, I build reliable automations that run in the background and give you back time; with Claude/AI integrations, texts, requests, or documents can be intelligently processed.
After several years as a backend developer (Golang, microservices, APIs) and practical experience in building my own projects, I bring both technical expertise and a feel for real business processes. I understand where time is lost in everyday work – and how to fix it with simple, robust solutions, without you having to write or maintain code yourself.
Typical projects:

  • Automated order processes and inventory management
  • Email classification and automated responses
  • Data processing and synchronization between tools (Sheets, databases, APIs)
  • Custom AI-powered workflows for recurring tasks

I work pragmatically, communicate clearly in German, English, and Russian/Ukrainian, and deliver solutions that continue to run after the project is completed, even without me.
  • Russian

    Native or bilingual

  • German

    Fluent

  • English

    Fluent

  • Ukrainian

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Master's way
    Backend Developer
    SOCIAL NETWORKS
    August 2024 - May 2025 (9 months)
    Tiflis, Georgia
    • Designed and implemented scalable microservices architecture with Golang and gRPC (+15% performance)
    • Refactored backend into clear transport, service, and data layers (+20% performance, -30% onboarding time)
    • Optimized database queries (PostgreSQL, Redis), reducing response times by 10%
    • Performed frontend bug fixes and led code reviews, ensuring high code quality
    Golang Python Docker Teamwork Discord
  • Rozdoum
    Software Developer
    E-COMMERCE
    February 2022 - July 2024 (2 years and 5 months)
    Charkiw, Ukraine
    • Developed and deployed microservices architecture and REST APIs with Golang (Gin), Docker, and Kubernetes for SaaS and web applications
    • Led project to automate critical customer processes, reducing manual work by over 25% and significantly increasing efficiency
    • Integrated frontend solutions with Next.js and TypeScript, implementing user-friendly and responsive interfaces
    • Optimized performance of complex MySQL databases, improving query times by approx. 15%
    • Played a key role in product strategy, marketing automation, and customer solutions, fostering growth and customer satisfaction
    E-commerce Shopify External API Integration REST API Slack
  • Ocean Script
    Co-Founder & COO
    SOFTWARE PUBLISHING
    December 2024 - July 2025 (7 months)
    Hamburg, Germany
    • Introduced Notion as an operating system (CRM, tasks, documents, project dashboards) and standardized delivery workflows
    • Represented the company at conferences; pitched and sold proposals, converting conversations into qualified leads and paying customers
    • Took end-to-end responsibility for customer communication and delegated execution to the team
    • Coordinated staff deployment, progress tracking, and escalations
    Leadership Communication Team Management Customer Service Self Motivated

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