Bernhard Widtmann
Principal Specialist SA, Media & Ent. at Amazon Web Services (AWS)
Munich, Bavaria, Germany
Summary
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Senior🎓
Top SchoolBernhard Widtmann is a Principal Specialist Solution Architect for Media & Entertainment at AWS with 11 years of hands-on experience architecting and operating large-scale premium video streaming platforms. He has led end-to-end transformations—from monolithic on-prem stacks to highly scalable AWS-based architectures serving petabytes of VOD and peak-CDN loads—while owning product monetization and retention improvements at Joyn. A contributor to the DASH Industry Forum and the dash.js reference player, he brings deep expertise in MPEG-DASH, DRM (PlayReady) and client-side buffer resilience that directly improved playback robustness. Bernhard combines technical leadership with product and commercial impact, having driven AVOD revenue growth and retention through experimentation and digital ad insertion. Based in Munich, he’s comfortable both in the codebase and the C-suite, translating complex stream protection and scalability requirements into reliable, measurable outcomes.
11 years of coding experience
13 years of employment as a software developer
A-Level, Computer Engineering, A-Level, Computer Engineering at Higher Technical Secondary School SalzburgDiplom-Ingenieur (FH) (comparable to a Master of Science), Information Technology & Systems Management, Diplom-Ingenieur (FH) (comparable to a Master of Science), Information Technology & Systems Management at University of Applied Sciences Salzburg
German, English
Stackoverflow
11reputation
0reached
2answers
0questions
Github Skills (17)
debugging10
debug10
drm10
javascript10
stream10
performance-optimization10
video-streaming10
eme10
streaming10
configuration-management9
error-handling9
testing8
recursion6
java6
square-root6
Programming languages (3)
Github contributions (5)
Dash-Industry-Forum/dash.js
Jul 2015 - Aug 2016
A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:22 commits, 16 PRs, 188 comments in 1 year 1 month
Contributions summary:Bernhard made several contributions to the dash.js project, primarily focusing on improving the robustness and maintainability of the player. They addressed issues related to DRM, specifically PlayReady, by renaming headers to align with W3C standards and improving logging. Additionally, they worked on buffer management, including buffer pruning and the configuration of retry attempts for fragment loading, to enhance playback stability and resilience to network interruptions. The user also added a new requests queue metric to the debug area.
msswebrtcplaybackvideomse
maxdome/hasplayer.js
Mar 2015 - Sep 2016
Contributions:4 PRs, 8 pushes, 3 branches in 1 year 5 months
adaptivejavascriptstreamingadaptive-streamingjavascript-player
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