Jonathan Saylor
Senior Software Engineer
Summary
👤
SeniorJonathan Saylor is an embedded systems and HPC engineer with 11+ years building hardware, firmware, and software solutions across defense, transportation, and AI workloads. He has led end-to-end development of FPGA-based PCIe mini devices for real-time data capture and novel features like wire degradation detection and LRU system fingerprinting, and now helps customers optimize AI/HPC stacks on AMD EPYC and Instinct hardware. Jonathan pairs low-level DSP, RF, and FPGA expertise with software engineering—driving FHE and NTT optimizations in OpenFHE and enabling hardware acceleration across GPUs, AVX, and ASICs. A proven technical leader and mentor, he has driven product roadmaps, CI/CD and verification practices, and secured significant business development wins. Based in Austin, he blends practical production scaling experience with open-source impact on a major homomorphic encryption library—highlighting a rare mix of algorithmic depth and hands-on hardware design.
5 years of coding experience
Github Skills (3)
cryptography10
homomorphic-encryption10
cpp10
Programming languages (1)
Github contributions (3)
openfheorg/openfhe-development
Sep 2021 - Feb 2022
This is the development repository for the OpenFHE library. The current version is 1.5.1 (released on April 10, 2026).
Role in this project:
Backend Developer
Backend DeveloperContributions:8 commits in 4 months
Contributions summary:Jonathan's contributions primarily focused on the core implementation and optimization of the OpenFHE library, specifically related to homomorphic encryption. They made significant changes to the `DCRTPolyImpl` class, including inheriting from an interface and adding various methods such as `Clone`, `CloneTowers`, and operators. Additionally, the user introduced a `HexlDCRTPoly` class for HEXL-specific optimizations, further indicating a focus on performance and low-level improvements. Further contributions included the integration of v1.11.6 updates and fixes for Apple M1 processor builds.
fully-homomorphic-encryptioncryptographycppprivacysecure-multiparty-computation
openfheorg/openfhe-integer-examples
Feb 2021 - Jul 2021
Integer examples for OpenFHE library. Based off of https://gitlab.com/palisade/palisade-integer-examples
Contributions:5 commits in 5 months
integergitlabroot-finding
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.