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Sadi – Typescript, Node.js, Tailwind CSS, experts in Lemon.io

Sadi

From Turkey (UTC+3)flag

Full-stack Web Developer|Senior

Sadi – Typescript, Node.js, Tailwind CSS

Sadi is a senior full-stack engineer with 13+ years of experience, specializing in Node.js, TypeScript, and modern back-end architectures. He demonstrates strong expertise in backend systems, cloud platforms, and has hands-on knowledge of React, Vue/Nuxt, and blockchain. Screenings confirm clear communication, adaptability, and effective mentoring skills. He is comfortable with direct client interaction and excels in fast-paced, cross-cultural environments.

13 years of commercial experience in
AI
Blockchain
Marketing
NFT
Dev tools
Mobile apps
Web development
Software development
Main technologies
Typescript
6 years
Node.js
10 years
Tailwind CSS
7 years
React
4 years
Nest.js
2 years
JavaScript
15 years
AWS
1 year
GCP
1.5 years
Supabase
4 years
Next.js
1 year
CSS
14 years
Additional skills
Nuxt.js
Vue.js
Figma
FastAPI
AI
GraphQL
Blockchain
Stripe API
OOP
HTML
WebSocket
REST API
Bun.js
CI/CD
API
Direct hire
Possible
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Experience Highlights

Founder
Aug 2025 - Ongoing5 months
Project Overview

An AI platform that deploys intelligent coding agents in the cloud to automatically develop websites, web apps, backend systems and more, helping businesses accelerate software development with minimal human effort.

Responsibilities:
  • designed and implemented the end-to-end system architecture (frontend & backend);
  • built a scalable, high-performance full-text search system;
  • modernized and refactored the existing user interface;
  • developed a reusable frontend component library/design system;
  • identified, debugged, and fixed critical application issues;
  • implemented comprehensive testing (unit, integration, and end-to-end);
  • integrated and maintained multiple third-party service providers.
Project Tech stack:
Nest.js
Nuxt.js
AI
Docker
Senior Full Stack Engineer
Dec 2024 - Jul 20256 months
Project Overview

A leading platform in the art market that leverages blockchain to issue, manage, and track NFTs, enabling secure ownership, provenance, and seamless trading of digital and physical artworks.

Responsibilities:
  • Built end-to-end Stripe payment integration with quota-based billing system, enabling scalable subscription management and revenue tracking
  • Developed full-stack solutions using React and NestJS, implementing comprehensive backend services with test-driven development methodology
  • Enhanced developer experience through improved tooling, workflows, and development processes to increase team productivity
Project Tech stack:
React
Nest.js
Stripe API
Senior Software Engineer
Oct 2022 - Nov 20242 years
Project Overview

A frontend product for an AI platform that helps industries like manufacturing and healthcare trust their AI by making "black box" models explainable and ready for real-world use.

Responsibilities:
  • Rebuilt legacy app in Vue.js/Nuxt.js, leading frontend architecture.
  • Designed UI/UX with Tailwind and Flowbite.
  • Built backend services with Python, Django, and FastAPI.
  • Deployed services on-premise and cloud using Docker.
  • Mentored engineers and streamlined onboarding for new developers.
Project Tech stack:
Vue.js
Nuxt.js
Django
FastAPI
AI
Senior Software Engineer / Lead Blockchain Engineer
Aug 2021 - Mar 20231 year 7 months
Project Overview

Led the development of a high-security distributed storage platform, with a custom Tendermint blockchain built to provide a private, cryptographically secure environment for decentralized file sharing.

Responsibilities:
  • Built a custom blockchain using Tendermint with BFT consensus.
  • Designed a secure and private file transfer protocol.
  • Researched and implemented distributed ledger and cryptographic solutions.
Project Tech stack:
Blockchain
Distributed Systems
Golang
Cosmos
CTO
May 2020 - Jul 20211 year 2 months
Project Overview

Co-founded and led the technical development of a blockchain staking firm focused on the MENA region, specializing in Tezos validator operations.

Responsibilities:
  • Co-founded blockchain staking company focused on MENA region.
  • Led technical development for Tezos validator operations.
Project Tech stack:
Blockchain
DevOps
Senior Software Engineer
Feb 2020 - Jul 20211 year 5 months
Project Overview

Developed a blockchain identity system acquired by ELM and led R&D for smart contract-based supply chain and financial systems while mentoring the next generation of Saudi developers.

Responsibilities:
  • Built blockchain identity system later acquired by ELM.
  • Taught blockchain and Solidity at a developer academy.
  • Mentored at Digital Challenges Bootcamp (Ministry of ICT).
  • Led R&D on supply chain tracking and smart contract ROSCA system.
Project Tech stack:
Ethereum
Smart contracts
Blockchain
DevOps
Lead Software Engineer
Oct 2016 - Aug 20181 year 9 months
Project Overview

Led a full-stack engineering team in Japan, driving a major backend migration to Node.js and building a scalable Vue.js design system to support business growth.

Responsibilities:
  • Led engineering team across frontend, backend, and DevOps.
  • Built Vue.js frontend with design system and reusable components.
  • Migrated backend from Ruby on Rails to Node.js/Hapi.js.
  • Mentored engineers and aligned technical direction with CEO.
Project Tech stack:
Node.js
Vue.js
DevOps
Project management
Hapi.js
Junior Software Engineer
Dec 2014 - Aug 20161 year 7 months
Project Overview

Progressed from mobile development intern to Frontend engineer in Tokyo, leading the redesign of an HR/Edu-Tech platform into a modern React single-page application.

Responsibilities:
  • Started as intern building mobile apps with PhoneGap.
  • Redesigned HR/Edu-Tech app as React SPA.
Project Tech stack:
React
PhoneGap
JavaScript
Junior Software Engineer
Jun 2013 - Dec 20141 year 6 months
Project Overview

Built interactive digital signage and mobile mapping applications for high-profile museum exhibitions in New York City as a remote junior frontend engineer.

Responsibilities:
  • Built digital signage app for Rubin Museum of Art, NYC.
  • Created mapping app for ”Pilgrimage Map of Wutaishan” exhibit.
  • Developed mobile app for ”Streaming Imagination” exhibition.
Project Tech stack:
React
JavaScript

Education

2026
Artificial Intelligence
Master
2015
Computer Science, Information Systems
Bachelor of Arts
2026
Cyber Security
Masters

Languages

Albanian
Advanced
Italian
Upper-intermediate
English
Advanced

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