You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Nezzar K.NK

Nezzar K.

Smart Contract & Fullstack Developer

€500/day
9 projects
Toulouse, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Nezzar

Protocol & Web3 Developer: Solidity, React, Next.js, The Graph

Developer with 8 years of experience, specializing in the design of complete onchain applications: smart contracts (Solidity, Foundry), Indexing, SDKs, and React/Next.js/TypeScript frontends. I work across the entire stack, from protocol design to mainnet deployment.

My background combines startups (Theodo, Sismo), freelancing (Peanut Protocol, Superfluid), and entrepreneurship. I have designed and delivered blockchain protocols in production, complete web applications, payment systems, and business dashboards.

Strengths:
• Smart contract architecture: proxies, factories, beacon upgrades, integration with other protocols
• Onchain Full-stack: from smart contract, backend, frontend, including SDK, MCP, etc.
• End-to-end autonomy, from technical scoping to production deployment
• Rigorous about code quality, pragmatic about deadlines
• Clear communication, accustomed to working with non-technical profiles
• Rapid skill acquisition on new environments and stacks
• Team and solo experience, comfortable with remote work

Stack: Solidity, Foundry, The Graph, React, TypeScript, Next.js, Node.js, PostgreSQL, Viem, Wagmi

Based in Toulouse, available remotely or hybrid. I am looking for assignments where I can quickly add value: protocol development, blockchain integration, MVPs, technical redesigns, or team augmentation.
  • English

    Native or bilingual

  • French

    Native or bilingual

Can work on-site
Toulouse (up to 10km)

Experience

  • Futures Factory
    Blockchain Developer
    SOFTWARE PUBLISHING
    May 2022 - Today (4 years and 1 month)
    Paris, France
    TypeScript Solidity Next.js Node.js Google Cloud
  • SISMO
    Fullstack Developer
    SOFTWARE PUBLISHING
    October 2021 - April 2022 (7 months)
    Paris, France
    Development & design of applications communicating with smart contracts on the Ethereum blockchain. Deployment of subgraphs.
    TypeScript Node.js React.js Blockchain Ethereum
  • Theodo
    Malt logoOn Malt
    Fullstack React/Typescript/Node-Serverless Developer
    SOFTWARE PUBLISHING
    December 2020 - June 2021 (6 months)
    Lille, France
    TypeScript Amazon Web Services Node.js React.js Serverless

Reviews

5.0

Out of 3 ratings

H

Hadrien

ABL

Reviewed on 10/20/2021

Nezzar completed his mission with quality and autonomy. It was a pleasure working with him.
M

Matthieu

Theodo

Reviewed on 1/19/2021

We worked with Nezzar for a long-term agile project using React/TypeScript and Serverless technologies. Nezzar brought his expertise in React and delivered frontend features on time and to the quality standards the team had set. Nezzar also quickly acquired skills in backend and delivery methodologies (Scrum, Git Flow, etc.). Nezzar is focused, attentive, and very humble. We would undoubtedly call on him again for future projects.

Recommendations

FU
FU
FU
Former user and 2 other people have recommended Nezzar

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Software Engineer
    Wild Code School
    2018
  • Health Biology License
    Catholic University of Lille
    2015

Skill set

Categories