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6 followers · 6 following

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Achievement: Pull Sharkx2Achievement: QuickdrawAchievement: YOLOAchievement: Public SponsorAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pull Sharkx2Achievement: QuickdrawAchievement: YOLOAchievement: Public SponsorAchievement: Arctic Code Vault Contributor

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DemianKost/README.md

Hi there 👋

Here are links for my content: demian.party(official website), Udemy, Medium

I'm a full-stack & AI-driven developer with 5+ years of experience building SaaS, e-commerce platforms, and automation systems (based on microservices). I focus on creating high-load, high-performance applications with AI integration and play a major role in designing back-end architectures.

I have had a lot of different e-commerce projects, so my experience spans both back-end and front-end development, with hands-on experience in PHP/Laravel/Symfony, Node.js, Typescript and in a lot of modern JavaScript frameworks such as React or Vue. I build systems using clean architecture principles, event sourcing, CQRS, DDD, event-driven patterns, and microservices when scalability is required.

Also, I'm very comfortable working with AWS (S3, Lambda, DynamoDB, RDS, EC2, ECS), dockerized environments, CI/CD pipelines, real-time communication, RESTful and WebSocket APIs, and distributed data processing. In the AI domain, I create LangChain-based agents, vector-store search flows (ElasticSearch / ChromaDB / Pinecone), and RAG-powered automation tools that streamline business operations and reduce operational costs.

No fear to take full ownership of features - from architecture and database design to deployment and monitoring — and I thrive in environments where engineering excellence and product thinking matter.

Key strengths:

  • Full-stack development with focus on TypeScript, Node.js, Laravel, React
  • AI integrations: LangChain, LLM tooling, RAG pipelines
  • Microservices, event-driven systems, CQRS/DDD patterns
  • Cloud architecture on AWS (serverless & containerized)
  • Experience building SaaS platforms end-to-end
  • Strong e-commerce development background (architecture, payments, inventory, data flows)
  • CI/CD, DevOps culture, GitOps
  • Clean code, testing culture, scalable architecture mindset

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  1. bluesky-crypto bluesky-crypto Public

    Modified version of Bluesky social network - but with crypto-blockchain included features.

    TypeScript

  2. mastodon-crypto mastodon-crypto Public

    Forked from mastodon/mastodon

    Customized mastadon version with crypto subscriptions and other cool decentralized stuff.

    Ruby

  3. taskforge-microservices taskforge-microservices Public

    Kanban managment platform built with microservice architecture based on Laravel, RabbitMQ, Redis, Docker.

    PHP

  4. hexagon-ddd-in-laravel hexagon-ddd-in-laravel Public

    Correct implementation of Hexagonial Architecture, DDD and CQRS in Laravel

    PHP