Luka Zakrajšek
Staff Software Engineer At SAP LeanIX
Ljubljana, Slovenia
Summary
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Rockstar🎓
Top SchoolLuka Zakrajšek is a Staff Software Engineer with 15 years of experience building cloud-native systems, currently at SAP LeanIX after a long tenure co-founding and scaling Koofr. He blends systems-level languages (Go, Rust, C/C++) with modern web stacks (TypeScript, React) and cloud infra (Kubernetes, Terraform, AWS, Azure) to deliver secure, scalable storage and integration platforms. Luka’s background includes shipping zero-knowledge client-side encryption across web, mobile, and desktop using Rust/WASM—a detail that highlights both product- and crypto-minded engineering. He has deep backend and DevOps chops from roles at Soniox and ZenGRC and practical experience integrating diverse storage APIs and transfer protocols (Data Transfer Project, custom WebDAV/FTP). An active contributor to open-source tooling for data portability and robust file transfer, he focuses on pragmatic improvements like streaming large-file transfers and resilient importers. Based in Ljubljana, Slovenia, he pairs entrepreneurial product experience with hands-on technical leadership across architectures and teams.
15 years of coding experience
18 years of employment as a software developer
Faculty of computer and information scienceComputer technician Computer Science, Computer technician Computer Science at ERSŠG
Stackoverflow
1,108reputation
163kreached
10answers
0questions
Github Skills (26)
javascript10
testing10
data-portability10
networking10
java10
javas10
data-transfer10
nodejs10
api-design9
restful-api9
async9
filestream9
asynchronous9
api-rest9
rest-api9
Programming languages (12)
Github contributions (5)
dtinit/data-transfer-project
Sep 2020 - Dec 2020
The Data Transfer Project makes it easy for platforms to build interoperable user data portability features. We are establishing a common framework, including data models and protocols, to enable direct transfer of data both into and out of participating online service providers.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 15 commits, 2 PRs in 3 months
Contributions summary:Luka's commits primarily focus on enhancing the Koofr data transfer implementation within the data-transfer-project repository. They addressed invalid album names and improved the handling of album names and file names. The user added videos importer and added Koofr client and related factories. These changes demonstrate a focus on backend functionalities and integration with the Koofr service.
datadata-portabilityonline-serviceparticipatingportability
sergi/jsftp
Nov 2012 - Nov 2012
Light and complete FTP client implementation for Node.js
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits in 4 days
Contributions summary:Luka focused on improving the FTP client's file streaming capabilities and addressing related bugs. Their work involved implementing and refining functionalities for uploading and downloading big files, specifically using streams and sockets. They enhanced the error handling for file uploads and made code adjustments to improve the efficiency and stability of file transfers within the jsftp library.
ftpsftp-clientlightnode-jsjavascript
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