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Frederic Hamelink

Software Engineer

Antwerp, Belgium

๐ŸŸกLurking

Skills

Solidity9/10
Ethereum/EVM8/10
C++8/10
Smart Contract Security8/10
Git7/10
Hardhat (7/10)JavaScript (7/10)JavaScript/TypeScript (7/10)Python (7/10)Zig (7/10)Cartesi (7/10)CI/CD (7/10)Distributed Systems (7/10)Smart Contract Development (7/10)TypeScript (7/10)Docker (6/10)Machine Learning (6/10)EigenLayer (6/10)React (6/10)Rust (6/10)

Work Experience

Software Engineer

Rives (Cartesi spinout)

Oct 2024 โ€” Jan 2025

Audited several Solidity smart contracts and identified multiple critical security vulnerabilities. Reduced gas usage and contract size by optimizing key functions, lowering user transaction costs by 15%, making deployment cheaper and ensuring compliance with EVM size limits.

Software Engineer

Tender Finance

Sept 2022 โ€” Jan 2023

Designed and implemented a CI/CD pipeline for Solidity smart contracts. Built a testing framework using Hardhat with unit tests, fuzzing, invariant tests, coverage, and gas profiling. Reviewed codebase for security vulnerabilities and optimizations.

Software Engineer

Zippie

Oct 2021 โ€” Oct 2024

Contributed to Tosi, a project focused on the issuance and verification of digital assets and data. Collaborated with the Cartesi team on Cartesi Compute and helped secure strategic grants. Built and maintained Solidity smart contracts (data availability, staking, etc.), including a smart contract for GSX Group securing over $12M in TVL. Researched new applications for verifiable computing, e.g., interoperability between Cartesi and EigenLayer.

IT Coordinator

De Wonderpluim

Jun 2021 โ€” Jan 2022

Automated data pipeline migrating terabytes of faculty data from local drives to NAS using Python scripts. Provided technical support for 20+ faculty members across hardware, software, and network needs.

Tennis Coach

AZUA Tennis

Sept 2014 โ€” Jun 2019

Certified coach; coached children during weekends, led summer tennis camps, and organized events.

Education

KU Leuven

MSc ยท Engineering: Computer Science

2024 โ€“ 2026

University of Antwerp

BSc ยท Computer Science

2020 โ€“ 2024