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Hello, I'm

Sylvain Tiassou

Blockchain & Full-Stack Developer

Solidity · Next.js · React · Web3 . AI

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Sylvain Tiassou — Blockchain & Full Stack Developer

Sylvain Tiassou

Blockchain · Full Stack

⛓️ Web3 Dev
🚀 Next.js · Solidity
Sylvain Tiassou

Passionate developer

Full Stack Developer based in Lomé, Togo. I build modern, performant and accessible web applications with expertise in Next.js, React, TypeScript and the Web3 & Blockchain ecosystem.

0+Years of experience
0+GitHub repositories
0+Blockchain projects

Experience & Education

💼

Full Stack Developer

SOLIMI·Klikamé, Togo
June 2024 — present
  • ▸Mobile prepaid card management app (Flutter / Dart)
  • ▸Monitoring stack : Grafana, Loki, Tempo, OpenTelemetry + FastAPI
  • ▸Face-ID models and OCR pipeline (Python, FastAPI)
  • ▸Business dashboards with React.js / Next.js
FlutterPythonFastAPINext.jsGrafana
💼

Full Stack Developer (contract)

AZ Consulting Africa·Lomé, Togo
May — Sept 2024
  • ▸Web application development for enterprise clients
  • ▸REST API integration and database management
ReactNode.jsREST APIPostgreSQL
💼

Full Stack Developer (remote)

SEBCO TOGO·Akepe, Togo
2023 — 2024
  • ▸Maintenance and evolution of e-commerce web applications
  • ▸Performance optimisation and code refactoring
Next.jsTypeScriptE-commerce
💼

Web & Mobile Developer (internship)

Woelab·Apédokoé, Togo
2022 — 2023
  • ▸Development of prototypes and proof-of-concepts
  • ▸Team collaboration on innovative projects
ReactMobilePrototyping

What I master

Blockchain & Web3

  • Solidity
  • Hardhat
  • Ethers.js
  • OpenZeppelin
  • Foundry
  • IPFS
  • The Graph
  • Wagmi / Viem

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Framer Motion
  • GSAP
  • Three.js / R3F

Backend & Data

  • Node.js
  • Python
  • PostgreSQL
  • REST API
  • Machine Learning

Tools & DevOps

  • Git / GitHub
  • Docker
  • Vercel
  • CI/CD
  • Slither
  • Linux

What I offer

Smart Contract Development

Design and development of secure, audited, gas-optimised smart contracts for on-chain deployment.

Full-Stack dApp

Modern Web3 interfaces connected to the blockchain — from wallet to final UX.

Web & Mobile

Performant web and cross-platform mobile applications with the best modern tooling.

Audit & Security

Code review, vulnerability analysis and recommendations to secure your contracts.

What I've built

TKMS Token
SolidityHardhatTypeScriptEthers.jsSepolia

TKMS Token

ERC-20 token with staking mechanism and time-proportional rewards. 95%+ unit test coverage.

Source code →
Blockchain Cagnote
SolidityReactEthers.jsHardhat

Blockchain Cagnote

Decentralised pool application on EVM — transparent and trustless on-chain fundraising.

Source code →
Blockchain Voting DApp
SolidityTypeScriptHardhatReactViem

Blockchain Voting DApp

On-chain voting system with transparent governance, double-vote prevention and immutable results.

Source code →
Hardhat Tutorial
SolidityHardhatTypeScriptMochaChai

Hardhat Tutorial

Comprehensive guide to using Hardhat for smart contract development, testing and deployment.

Source code →

Let's work together