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Serhii L. Cloud, AI and Database Platforms

My name is Serhii L. and I have over 10 years of experience in the tech industry. I specialize in the following technologies: node.js, TypeScript, JavaScript, LangChain, OpenAI API, etc.. I hold a degree in High school degree. Some of the notable projects I’ve worked on include: Mental Health Support App, Lead Generation Platform, AI Chatbot MVP, White Label Crypto Wallet App. I am based in Kherson, Ukraine. I've successfully completed 4 projects while developing at Softaims.

I specialize in architecting and developing scalable, distributed systems that handle high demands and complex information flows. My focus is on building fault-tolerant infrastructure using modern cloud practices and modular patterns. I excel at diagnosing and resolving intricate concurrency and scaling issues across large platforms.

Collaboration is central to my success; I enjoy working with fellow technical experts and product managers to define clear technical roadmaps. This structured approach allows the team at Softaims to consistently deliver high-availability solutions that can easily adapt to exponential growth.

I maintain a proactive approach to security and performance, treating them as integral components of the design process, not as afterthoughts. My ultimate goal is to build the foundational technology that powers client success and innovation.

Main technologies

  • Cloud, AI and Database Platforms

    10 years

  • Node.js

    2 Years

  • TypeScript

    4 Years

  • JavaScript

    9 Years

Additional skills

Direct hire

Potentially possible

Previous Company

DataArt

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Experience Highlights

Mental Health Support App | Node.js, NLP

Duration: 7 months Developed NestJS Back-end for a Flutter application and admin dashboard. My responsibilities: - Database architecture - Media upload to AWS S3 - Recommendation algorithm (NLP tokenization) - Stripe billing integration - Internal currency and rewards logic - Admin dashboard - Setup CI/CD, Docker container - Postman API Documentation

Lead Generation Platform | Node.js, AI

Duration: 1 year and 1 month Developed a high-performance Lead Generation platform with AI-driven automated SMS campaigns. Responsibilities: - Designed and implemented a 3-layer server architecture - Managed PostgreSQL database administration - Integrated OpenAI API for AI-driven features - Integrated Twilio, Telnyx, and Plivo for SMS automation - Implemented Stripe for billing and payments - Performance optimizations - Data migration, Google Pub/Sub

AI Chatbot MVP | LangGraph, Next.js

Duration: 2 weeks Developed an AI assistant that processes doctor-patient audio recordings, extracts key information, and manages patient medical history. My responsibilities: - LangGraph agent architecture - Assembly AI integration for transcribe - OpenAI API integration - PDF / Docx generation

White Label Crypto Wallet App | NestJS, Blockchain

Duration: 5 months Held full responsibility for standalone microservices in a white-label crypto-fiat exchanger. My responsibilities: - Integration of Crypto Exchanges - Payment Gateway - Database architecture

Education

  • Physics and Technical Lyceum (PTL)

    High school degree in Computer science

    2009-01-01-2012-01-01

Languages

  • English
  • Russian
  • Ukrainian

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