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Andrii KovalenkoAK

Andrii Kovalenko

Full-Stack | Automation | Integrations

€172/day
Union City, US
8-15 years
n8n
Fullstack
Mobile application
Zoho CRM
automation

Average response time: A few days

About Andrii

Full-stack developer with 7+ years of experience building web applications, backend services, and automation tools. Skilled in JavaScript/TypeScript, Node.js, React, and Python. Experienced in integrating third-party APIs, optimizing data workflows, and contributing to production environments in cross-functional engineering teams. Strong focus on maintainability, reliability, and incremental delivery.

  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Onseo
    Full-Stack Developer
    June 2021 - October 2025 (4 years and 4 months)
    Vinnytsia, Vinnytsia Oblast, Ukraine, 21000
    • Built and maintained internal tools used by the operations and support teams.
    • Implemented backend components in Node.js and improved SQL-based workflows for reporting.
    • Developed Ul features in React and optimized component performance.
    •Worked with engineering leads to refine requirements and validate deployments for internal users.
    • Integrated OpenAI API for messaging analysis, generating responses, and summarizing customer interactions. (2023-)
    ChatGPT CI/CD Management Fullstack Backend Service Development Front End Interface Development
  • TechNova Digital Solutions
    Backend Developer
    May 2018 - April 2021 (2 years and 11 months)
    Lviv, Lviv Oblast, Ukraine, 79000
    •Developed Al-powered CRM features including automated chat responses and lead-routing workflows.
    •Built automation pipelines using n8n and Zapier to reduce manual tasks across support teams.
    •Maintained and documented REST API endpoints supporting the internal dashboards.
    •Collaborated with design and product to plan new features and improve existing user flows
    Zoho CRM automation Back-End development n8n ChatGPT
  • Intellectsoft UA
    Full-Stack Developer
    February 2017 - March 2018 (1 year and 1 month)
    Kyiv, Ukraine, 02000
    • Developed backend microservices using Java (Spring Boot) and Node.js.
    • Built data-processingjobs and optimized SQL queries for internal dashboards.
    • Contributed to REST API documentation and code-review processes.
    • Assisted with Docker-based deployments and basic Kubernetes operations.
    • Worked closely with product managers to estimate tasks and deliver sprint commitments.
    SQL Java API REST Docker

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Education

  • Bachelor of Computer Science
    Odessa I.I. Mechnikov National University
    2016
    Bachelor of Computer Science

Skill set

Mobile App Deployment
External API integration
CI/CD Management
Backend Service Development
Front End Interface Development

Categories