kateryna
Researcher In Applied Cryptography, Blockchain & Ai
Cryptography Engineer with 3+ years of production experience building cryptographic components in Rust.
My expertise bridges academic research and practical Web3 engineering. I specialize in Zero-Knowledge Proofs (Plonky2, Circom) and Privacy-Preserving Machine Learning (FHE/CKKS). Experienced in protocol optimization, secure smart contracts, and implementing cutting-edge cryptography into real-world applications.
Experience: 3 years
Yearly salary: $90,000
Hourly rate: $50
Nationality: 🇺🇦 Ukraine
Residency: 🇮🇹 Italy
Experience
Researcher (VRAI Lab)
Università Politecnica delle Marche, VRAI 2024 - 2025
Conducted research on privacy-preserving analysis of encrypted visual data using homomorphic encryption techniques. Explored the application of AI models to encrypted data, focusing on secure inference using homomorphic encryption schemes. Investigated approaches for combining machine learning with cryptographic techniques to enable secure processing of sensitive data.
Researcher (VRAI Lab)
Proxima Labs 2023 - 2024
Developed and optimized ZK circuits using Circom and Plonky2 to enable verifiable computation within a decentralized differential dataflow framework. Implemented performance-critical cryptographic primitives and state-tracking components in Rust to accelerate proof generation. Analyzed and integrated SNARK/STARK constructions to support secure, scalable, and privacy-preserving data processing.
Zero-Knowledge / Cryptography Engineer
Zpoken 2022 - 2026
Designed and implemented a high-performance ZK state transition verifier for NEAR Protocol using the Plonky2 framework, tailored for the Wormhole light client ecosystem. Developed core cryptographic circuits in Rust to verify proof-of-stake consensus and header updates for cross-chain interoperability. Conducted R&D on optimizing proof generation and verification constraints, bridging cryptographic primitives between NEAR and external networks.
Cryptography Engineer
Institute of Information Technology 2021 - 2022
Contributed to the implementation of a digital signature scheme based on the post-quantum FALCON algorithm. Implemented algorithms related to number-theoretic transforms (NTT), FFT-based polynomial arithmetic, and NTRU structures. Worked on cryptographic primitives used in lattice-based post-quantum cryptography. Participated in testing and evaluation of cryptographic implementations for correctness and performance.
Skills
ai
blockchain
c-plus-plus
cryptography
golang
math
python
rust
zk-rollup
zk-snark
security
english
russian
ukrainian