Solène PETTIER

Solène PETTIER

About

Detail

Blockchain & Full-Stack Engineer | 5+ years building EVM smart contracts and full-stack web3 applications
Spain
Contact Solène regarding: 
work
Full-time jobs
Starting at EUR10k/month ~USD11.1k/month
Flexible work
Starting at USD50/hour

Timeline

work
Job
school
Education

Résumé

Jobs verified_user 0% verified
  • Impossible Cloud Network
    Smart Contract Engineer
    Impossible Cloud Network
    Mar 2025 - Current (1 year 8 months)
    ICN — DePIN protocol for decentralized cloud storage. Designed and implemented the smart contracts covering provider registration, payments, and rewards. Responsible for testing, maintenance, upgrades, and bug bounty responses.

    - Designed and implemented smart contract features for a DePIN protocol using a custom Diamond proxy architecture with modular, upgradeable components.
    - Developed complex on-chain tokenomics by translating incentive models into optimized Solidity implementations, supporting $1.5M in monthly reward distributions.
    - Wrote and maintained migration scripts for contract upgrades and state transitions, enabling safe protocol evolution.
    - Managed the smart contract security lifecycle, including th
  • Kadena
    Smart Contract Engineer
    Kadena
    Jun 2024 - Jul 2025 (1 year 2 months)
    Kinesis Bridge — Cross-chain bridge between Kadena and EVM networks built on Hyperlane. Deployed and tested token contracts on the EVM side. On the Kadena side, implemented the Hyperlane messaging interface in Pact with TypeScript deployment scripts for both chains.

    - Built a mainnet bridge connecting Base (EVM) to 10 Kadena chains using Hyperlane infrastructure.
    - Implemented full bridge execution logic on the Kadena side in Pact, translating Hyperlane’s messaging protocol into native Pact workflows.
    - Integrated Hyperlane Interchain Security Module (ISM) with a validator-based security model to enforce cross-chain message verification.
    - Designed and maintained a cross-chain token deployment system with TypeScrip
  • J
    Smart Contract Engineer
    JibX
    Apr 2024 - Jul 2024 (4 months)
    Perpetual DEX — A fully on-chain perpetual DEX with a central limit order book backed by a red-black tree. Handles order matching, position management, and liquidations entirely in Solidity.

    - Built a fully on-chain central limit order book using a red-black tree, enabling O(1) order insertion via price-level grouping and O(1) cancellation via swap-and-pop optimizations.
    - Implemented the matching engine in Solidity, handling order execution, position management, and liquidations entirely on-chain.
    - Optimized contract gas usage and bytecode size through storage packing, inline assembly, and efficient data structures.
    - Developed comprehensive unit, fuzz, and invariant test suites covering the order book and matchi
  • Dollet Wallet
    Smart Contract Engineer
    Dollet Wallet
    Dec 2023 - Apr 2024 (5 months)
    Wallet Strategies — On-chain yield strategies for the Dollet mobile wallet. Wrote, tested, and maintained the strategy contracts. Integrated external yield protocols — Ether.fi, Pendle, Wombat — along with swaps and oracles.

    - Architected a modular DeFi protocol with vaults, strategies, and oracles, supported by shared governance, fee management, and reusable core libraries.
    - Developed a reusable strategy integration framework with shared lifecycle management, accounting, and protocol-specific adapters, enabling extensible integrations with external yield protocols.
    - Implemented 3 yield strategy integrations (
  • IdeaSoftio
    Smart Contract Engineer
    IdeaSoftio
    Sep 2021 - Jul 2025 (3 years 11 months)
    Contracted through Ideasoft as a blockchain engineer for multiple Web3 clients — building DeFi protocols, cross-chain bridges, and on-chain derivatives. Delivered smart contract systems for Kadena's cross-chain bridge, JibX's perpetual DEX, Dollet Wallet's yield strategies, and DEIN's insurance protocol.
  • DEIN
    Smart Contract Engineer
    DEIN
    Sep 2021 - May 2023 (1 year 9 months)
    Decentralized Insurance — A decentralized insurance protocol where coverage, premiums, and claim payouts are handled fully on-chain. Worked on migrating and refactoring the core insurance logic in Solidity and Foundry as part of the Bridge Mutual rebranding to DEIN.

    - Refactored and extended the core insurance protocol contracts covering policy issuance, coverage provisioning, claims processing, and premium management.
    - Led the on-chain migration of 20 insurance policies, securing $18M TVL, during the Bridge Mutual → DEIN rebrand.
    - Designed and implemented customizable policy lifecycles, enabling user-defined insurance products from submission and approval through active coverage and closure.
    - Built a two-step o
Education verified_user 0% verified
  • Alyra lécole blockchain IA
    Blockchain
    Alyra lécole blockchain IA
    Feb 2021 - Aug 2021 (7 months)
    Certification covering the full blockchain stack: Solidity smart contracts, Web3 integration, React front-ends, and Node.js back-end services. Included building and deploying dApps end-to-end.
  • Polytechnique Montréal
    Industrial Engineering
    Polytechnique Montréal
    Jan 2015
  • IMT Mines Albi
    Master of Engineering - MEng, Information Technology
    IMT Mines Albi
    Jan 2013 - Jan 2016 (3 years 1 month)
    Three-year engineering degree from one of France's top engineering school groups, covering IT systems, architecture, networks, and software development.
  • Lycée Michelet Vanves
    Licentiate degree, Mathematics
    Lycée Michelet Vanves
    Sep 2011 - Aug 2013 (2 years)
    Selective two-year program in advanced mathematics and physics — the standard French pathway before engineering schools. High-pressure, high-competition. Built the capacity for deep concentration and rigorous thinking that carries into every technical challenge since.