Zakaria Messai
Tech Lead at STEF
France
Summary
👤
Senior🎓
Top SchoolZakaria Messai is a pragmatic Tech Lead with 8 years of experience specializing in Android systems, stabilization and evolution of mission-critical mobile apps for logistics, automotive and security contexts. He has a track record of rescuing and hardening aging Android codebases—improving reliability for 6,000+ drivers at STEF and building secure, from-scratch solutions for sensitive access control and embedded vehicle applications. Comfortable across the stack, he pairs Kotlin/Java mobile expertise with backend Java and data engineering experience to deliver measurable operational impact (including a +5% engagement uplift from a personalization model). Zakaria favors targeted, cost-aware interventions over full rewrites, mentoring teams to leave codebases maintainable after his departure. Based in France with an engineering degree from Grenoble INP, he blends field-proven pragmatism with security-minded development often required in high-stakes production environments.
8 years of coding experience
6 years of employment as a software developer
Data Scientist, Data Scientist at OpenClassroomsENSE3 - SICOM Signal Image COmmuniction MultimédiaDiplôme d'ingénieur, Programmation informatique, applications spécifiques., Diplôme d'ingénieur, Programmation informatique, applications spécifiques. at Grenoble INP - Ense3
French, English
Github Skills (20)
quit9
nlp9
speech-recognition8
python8
deep-learning8
natural-language-processing8
machine-learning8
pytorch8
tensorflow7
bert7
transformer7
language-model6
transformers6
jax5
android5
Programming languages (3)
Github contributions (5)
mzackaria/Movie-recommander-system
Oct 2018 - Mar 2021
Contributions:29 commits, 2 PRs, 30 pushes in 2 years 4 months
mzackaria/Projet-4
Apr 2018 - Jan 2021
Contributions:6 pushes, 1 branch in 2 years 10 months
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