Jon S
Principal Member Of Technical Staff at Oracle
Queensland, Australia
Summary
👤
Senior🎓
Top SchoolJon S is a Principal Member of Technical Staff based in Queensland, Australia, with nine years of focused software engineering experience and a background stretching back to embedded and telecoms roles. He brings deep C, Java, and Python expertise, a calm, analytical approach to complex debugging and process improvement, and strong written and verbal communication. At Oracle and previously at RSA, Ericsson and Vislink he has delivered reliable, security-conscious systems and enforced quality through meticulous testing and efficiency gains. An active open-source contributor, Jon has contributed test implementations and bug fixes to the widely used OpenSSL project, including work on CRLDP support and Python cryptography test suites—demonstrating both security domain knowledge and practical test-framework modernization.
9 years of coding experience
16 years of employment as a software developer
Bachelor of Engineering (BEng), Electronic Engineering, Bachelor of Engineering (BEng), Electronic Engineering at Southampton University
Github Skills (11)
c1710
c1110
openssl10
cryptography10
testing10
python9
tls139
libtls9
ssl9
tls129
mtls9
Programming languages (2)
Github contributions (5)
openssl/openssl
Sep 2019 - Apr 2022
TLS/SSL and crypto library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:42 reviews, 42 commits, 73 PRs in 2 years 8 months
Contributions summary:Jon contributed to the OpenSSL project by implementing and converting tests. They fixed a bug related to CRLDP extension support and made changes to the Blowfish test framework by splitting the tests up and removed an unused variable. The user also added Python Cryptography.io external test suites and converted the RSA and bio_enc tests to use a new framework.
crypto-librarycryptographyssltlscrypto
jon-oracle/openssl
Mar 2017 - Mar 2025
TLS/SSL and crypto library
Contributions:426 pushes, 122 branches, 5 tags in 8 years 1 month
crypto-librarycryptographyssltlscrypto
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