Mario López
Greater Sevilla Metropolitan Area Spain
Summary
🤩
Rockstar🎓
Top SchoolMario López is a versatile engineer and entrepreneur based in the Greater Sevilla area, combining a background in building and civil engineering with hands-on software work at TTTech Auto (NXP). He contributes to mission-critical open-source middleware like eProsima's Fast-DDS, where his backend and QA work has improved reliability by fixing critical bugs and expanding security and regression tests. As CEO of Urban Cities and a content creator with 20k+ followers, he blends technical execution with public-facing leadership and product-minded storytelling. Fluent in English (C1) and a trained pianist, he brings a multidisciplinary perspective that helps translate complex engineering problems into robust, well-tested solutions.
3 years of coding experience
Edificacion Ingeniería de edificación, Edificacion Ingeniería de edificación at Politecnico sevillaC1 Ingles Ingles, C1 Ingles Ingles at University of CambridgeObra Civil Edificación y obra civil, Obra Civil Edificación y obra civil at I.E.S Heliopolis
Github Skills (11)
debug10
c-language10
cprogramming-language10
opendds10
rtp10
xml-parsing10
testing10
robotics8
ros7
cpp6
middleware6
Programming languages (7)
Github contributions (5)
eProsima/Fast-DDS
Oct 2022 - Jan 2023
The most complete DDS - Proven: Plenty of success cases. Looking for commercial support? Contact info@eprosima.com
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:7 releases, 579 reviews, 28 commits in 3 months
Contributions summary:Mario primarily focused on improving the reliability and stability of the `fast-dds` library. Their contributions involved fixing critical bugs, such as null-dereference errors in XML parsing and a segfault related to statistics collection. Furthermore, the user implemented and expanded testing, including regression tests and tests for security features, to ensure the robustness of the system and prevent future issues. They demonstrated a strong understanding of the codebase and the impact of changes through comprehensive testing.
casesroboticscppfastddsros2
eProsima/sustainml-wp2
Nov 2023 - Mar 2025
Contributions:5 reviews, 6 PRs, 5 pushes in 1 year 4 months
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