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Hi, I’m Quentin Chabert, a senior blockchain/software engineer focused on building scalable Web3 infrastructure and secure software. I’ve led technical teams, architected multi-chain solutions, and delivered enterprise-grade products across retail, luxury, transport, and logistics. I enjoy turning complex problems into robust architectures, mentoring teams, and delivering value to users. In my work, I combine hands-on development with strategic planning, from smart contracts and dApps to front-end interfaces and real-time systems. I’m passionate about security, performance, and the practical impact of blockchain technology.…Hi, I’m Quentin Chabert, a senior blockchain/software engineer focused on building scalable Web3 infrastructure and secure software. I’ve led technical teams, architected multi-chain solutions, and delivered enterprise-grade products across retail, luxury, transport, and logistics. I enjoy turning complex problems into robust architectures, mentoring teams, and delivering value to users. In my work, I combine hands-on development with strategic planning, from smart contracts and dApps to front-end interfaces and real-time systems. I’m passionate about security, performance, and the practical impact of blockchain technology.

Quentin CHABERT

Blockchain Developer, Web Developer, Full Stack Developer, +3

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Hi, I’m Quentin Chabert, a senior blockchain/software engineer focused on building scalable Web3 infrastructure and secure software. I’ve led technical teams, architected multi-chain solutions, and delivered enterprise-grade products across retail, luxury, transport, and logistics. I enjoy turning complex problems into robust architectures, mentoring teams, and delivering value to users. In my work, I combine hands-on development with strategic planning, from smart contracts and dApps to front-end interfaces and real-time systems. I’m passionate about security, performance, and the practical impact of blockchain technology.…Hi, I’m Quentin Chabert, a senior blockchain/software engineer focused on building scalable Web3 infrastructure and secure software. I’ve led technical teams, architected multi-chain solutions, and delivered enterprise-grade products across retail, luxury, transport, and logistics. I enjoy turning complex problems into robust architectures, mentoring teams, and delivering value to users. In my work, I combine hands-on development with strategic planning, from smart contracts and dApps to front-end interfaces and real-time systems. I’m passionate about security, performance, and the practical impact of blockchain technology.

Available to hire

Hi, I’m Quentin Chabert, a senior blockchain/software engineer focused on building scalable Web3 infrastructure and secure software. I’ve led technical teams, architected multi-chain solutions, and delivered enterprise-grade products across retail, luxury, transport, and logistics. I enjoy turning complex problems into robust architectures, mentoring teams, and delivering value to users.

In my work, I combine hands-on development with strategic planning, from smart contracts and dApps to front-end interfaces and real-time systems. I’m passionate about security, performance, and the practical impact of blockchain technology.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

German

Beginner

Spanish; Castilian

Beginner

Work Experience

Freelance Blockchain/Software Engineer at Independent / Freelance

January 1, 2025 - November 20, 2025

Freelance role focusing on building a Multi-DEX aggregator with automatic MEV mitigation, optimizing routings and plan-execution encoding, and developing a secure PK-based UI for market/limit/automatic orders; maintained Web3 projects, implemented call data compression for layer-2; performed pentesting on Web3 projects with bug bounties > €15k.

CTO at Ownest

January 31, 2025 - January 31, 2025

Led a technical team of up to 10, managed architecture, security, CI/CD, and backend optimization. Architected full-stack solutions with Vue.js/React frontends, Nest.js/Express backends, PostgreSQL/MongoDB databases, GraphQL APIs, and real-time WebSocket connections. Built multi-chain Web3 infrastructure (EVM) with 99.9% uptime: RPC fallbacks, event indexing, reorg handling, wallet/transaction logic, and automated blockchain event analysis. Designed complex smart contracts: factories, multi-sig custody, upgradeable proxies, role-based advanced control, off-chain steps, advanced testing and gas optimization. Delivered solutions for 15+ enterprise clients across retail, luxury, transport sectors. Projects: Ownest, Owalt, NACK, Polstaking.

Lead Developer at Ownest

March 31, 2019 - March 31, 2019

Created the technical foundation for the Ownest Logistics application and designed the transfer of responsibility protocol: smart contract, package, back-end.

Freelance Blockchain/Software Engineer at Self-employed (Freelance)

January 1, 2025 - November 20, 2025

Freelance engagement focusing on a multi-DEX aggregator with automatic MEV mitigation, optimised routings & splits between pools, plan-execution encoding and smart-contract UI for market/limit/automatic orders; Web3 project maintenance, optimization and feature development; callData compression/decompression for Layer-2 (Velora DAO); pentesting Web3 projects with bug bounty > €15k in 2022.

CTO at Ownest

January 1, 2025 - January 1, 2025

Led technical team (up to 10), managed architecture, security, CI/CD, and back-end optimisation. Architected full-stack solutions (Vue.js/React frontends, Nest.js/Express backends, PostgreSQL/MongoDB, GraphQL, real-time WebSocket). Built multi-chain Web3 infrastructure (EVM) with 99.9% uptime, including RPC fallbacks, event indexing, reorg handling, wallet/transaction logic, and automated blockchain event analysis. Designed complex smart contracts (factories, multi-sig custody, upgradeable proxies, role-based controls) and advanced testing and gas optimization.

Lead Developer at Ownest

March 1, 2019 - March 1, 2019

Created the technical foundation for the Ownest Logistics application; designed the transfer of responsibility protocol (smart contract, package, back-end) and delivered NFT platform tooling, AI-driven delivery confidence scoring, and Polygon staking analytics dashboards.