Martin Feldsztejn
Staff Android Engineer at Sporty Group
Mar del Plata, Buenos Aires, Argentina
Summary
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Senior🎓
Top SchoolMartin Feldsztejn is a Staff Android Engineer with 11 years of experience building scalable mobile platforms and improving developer experience across large product teams. He has led cross-team initiatives at Ring and Sporty Group, driving measurable improvements such as near-perfect push notification conversion, reduced ANRs, and significant CI/build time reductions. Equally comfortable architecting platform-level systems and shipping product features, he has a strong orientation toward modularization, dependency injection, and reliable tooling. Martin blends hands-on engineering with people leadership—managing platform teams, mentoring engineers, and championing tech deprecations when they improve velocity. A longtime freelancer and continuous learner, he deliberately adopts new technologies on side projects to stay current and test ideas before rolling them into production. Based in Mar del Plata, Argentina, he brings a pragmatic, outcome-focused approach that turns architectural changes into quantifiable business gains.
11 years of coding experience
12 years of employment as a software developer
Engineer's degree Computer Software Engineering, Engineer's degree Computer Software Engineering at University of Buenos AiresBachillerato Tecnico con Orientacion en Tecnologias de la Informacion y la Comunicacion Computer Programming/Programmer General, Bachillerato Tecnico con Orientacion en Tecnologias de la Informacion y la Comunicacion Computer Programming/Programmer General at Escuelas Tecnicas Ort
English, Spanish
Stackoverflow
46reputation
2kreached
2answers
0questions
Github Skills (154)
testing10
matcher10
mocks10
whitelist10
groovy10
verification10
java10
mocking10
mockito10
gradle10
kotlin10
pokemongo9
test-automation9
python9
automation9
Programming languages (8)
Github contributions (5)
martofeld/algoritmos2-tps
Sep 2017 - Oct 2018
Contributions:22 PRs, 109 pushes, 34 branches in 1 year 1 month
programacionubaalgoritmosjavadata-structures
martofeld/algoritmos1-tp3
May 2017 - Oct 2018
TP N3 de Algoritmos y Programacion I de Facultad de Ingenieria de la UBA
Contributions:9 PRs, 12 pushes, 12 branches in 1 year 4 months
programacionubajavascriptalgoritmosi-de
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