Tijn Porcelijn
Software Engineer at Juvoly
The Hague, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolTijn Porcelijn is a senior software engineer with 13+ years of experience specializing in Linux and C++, focused on long-lived, incremental architecture evolution that reduces bloat while improving user value. He has deep expertise in media streaming and packaging—having built MPEG-DASH/HLS packagers, live ingest modules for nginx/apache, and CMAF workflows—and contributed to the GPAC open-source project improving fragmented MP4 handling. Comfortable across systems from embedded codecs (WVTT, TTML, CEA-608) to infrastructure (Docker, LXC/Incus, Jenkins), he pairs hands-on low-level development with pragmatic DevOps and CI practices. He prefers craftsmanship, owning the whole stack and “eating his own dog food,” and brings a track record of stabilizing and modernizing legacy systems in both startup and enterprise contexts. Based in The Hague, he combines an academic background in computational linguistics with decades of production C++ and systems work, making him unusually fluent at bridging protocol-level media details and scalable delivery systems.
13 years of coding experience
25 years of employment as a software developer
MA, Computational Linguistics, MA, Computational Linguistics at University of AmsterdamBS, Technische Informatica, BS, Technische Informatica at Delft University of Technology
Github Skills (4)
mp410
c1710
c1110
streaming9
Programming languages (8)
Github contributions (5)
gpac/gpac
Mar 2016 - Feb 2018
GPAC Ultramedia OSS for Video Streaming & Next-Gen Multimedia Transcoding, Packaging & Delivery
Role in this project:
Back-end Developer
Back-end DeveloperContributions:25 commits, 5 PRs, 11 comments in 1 year 11 months
Contributions summary:Tijn focused on implementing read and dump support for the `mfra` and `tfra` boxes within the GPAC library. This involved adding new functions to read and write these boxes, which are related to the ISO base media file format. The user also made cosmetic changes and aligned the code with the project's coding conventions. Further contributions included fixing segmentation faults, memory leaks, and adding support for multiple `tfra` boxes, improving the library's ability to handle fragmented MP4 files.
hevcmp4boxmovvideomultimedia
porcelijn/gpac
Mar 2016 - Jun 2020
Contributions:43 pushes, 1 comment in 4 years 3 months
gpaccode-repository
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