Justin Malčić
Ruby On Rails Engineer at Mindful Chef | B Corp
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJustin Malčić is a software engineer based in London with 10 years of hands-on experience, a decade-long background in Ruby and Rails, and a recent MS in Computing Science from Imperial College London. He blends practical backend expertise—evidenced by contributions to notable projects like the Solana Program Library—with experimental systems work in Rust building a VCS that leverages LSPs to track source structure. A former linguist with advanced degrees from Cambridge and Maryland, he brings a formal, analytical approach to language-like program structures and ergonomics in developer tooling. Justin has experience in teaching and mentoring from graduate assistant roles and contributes to blockchain and open-source ecosystems, focusing on code quality, testing, and robust error handling.
10 years of coding experience
2 years of employment as a software developer
Master of Science - MS, Computing Science, Master of Science - MS, Computing Science at Imperial College LondonBachelor of Arts - BA, Linguistics, Bachelor of Arts - BA, Linguistics at University of CambridgeMaster of Arts - MA, Linguistics, Master of Arts - MA, Linguistics at University of MarylandElizabeth College, Guernsey
French, German, Italian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (5)
rust10
solana10
testing10
error-handling9
cli8
Programming languages (8)
Github contributions (5)
solana-labs/solana-program-library
Jul 2022 - Aug 2022
A collection of Solana programs maintained by Solana Labs
Role in this project:
Backend Developer
Backend DeveloperContributions:4 reviews, 5 commits, 4 PRs in 27 days
Contributions summary:Justin's contributions center around enhancing the Solana program library. Their work includes implementing tests for delegation, transfer, and burn functionalities within the token CLI, demonstrating proficiency in writing and debugging tests. Further contributions involve improving token error messages in token-swap, adding a wrapper function, and incorporating error handling, indicating a focus on code quality and robustness. They also worked on implementing a slippage constraint in the borrow instruction.
solana
jmalcic/spina-admin-conferences
Jul 2018 - May 2021
Conference management plugin for Spina.
Contributions:27 releases, 82 reviews, 251 PRs in 2 years 10 months
conference-managementspina
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