Mario Rosa
SysOps at TML - Transportes Metropolitanos de Lisboa
Lisbon Metropolitan Area Portugal
Summary
🤩
Rockstar🎓
Top SchoolMário Rosa is a seasoned SysOps and Linux infrastructure specialist with 14 years of experience building and supporting complex on-premise and cloud environments across finance, telecom and enterprise software. He has deep hands-on expertise spanning low-level systems (Assembly, Solaris), enterprise Linux, Oracle engineered systems and automation with tools like Ansible, and has led teams through operations and support at Oracle, Microsoft and major Portuguese institutions. Pragmatic and adventurous, he pairs a broad historical knowledge of platforms—from Spectrum 48K and Commodore 64 to Exadata—with modern best practices in storage, networking and transactional-safe application support. An active contributor to open-source (notably improvements to django-cleanup around robust file deletion and transactional handling), he focuses on reliability and edge-case coverage. Based in Lisbon, he brings both technical mentorship and incident-hardened operational judgment shaped by global fieldwork and leadership roles.
14 years of coding experience
24 years of employment as a software developer
Engineer's Licentiate degree Electrical and Computer Engineering, Engineer's Licentiate degree Electrical and Computer Engineering at Instituto Superior Técnico
Portuguese, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
pytest10
signal10
python10
django10
testing10
transactional9
transaction9
Programming languages (7)
Github contributions (5)
un1t/django-cleanup
Sep 2015 - Jan 2023
Automatically deletes old file for FileField and ImageField. It also deletes files on models instance deletion.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:107 commits, 56 PRs, 140 pushes in 7 years 4 months
Contributions summary:Mario primarily focused on improving and maintaining the Django-based backend functionality. They refactored and updated the codebase, including Django version upgrades, signal handling improvements, and bug fixes related to file management. They implemented features to support Django's transaction management and ensured proper file deletion in various scenarios including model changes and deletions. The user also added tests and addressed edge cases.
phpdeletionpython3python
vinnyrose/django-fluent-pages
Jan 2015 - Nov 2018
A flexible, scalable CMS with custom node types, and flexible block content.
Contributions:8 pushes, 15 branches in 3 years 10 months
cmsscalableblock-contentflexible
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