Sebastian Masseroni

About Sebastian Masseroni

Staff / Principal Mobile Engineer & Mobile Tech Lead with 10+ years building and scaling iOS, Android, and React Native applications.Currently leading mobile platform modernization at Zego, including React Native New Architecture adoption, CI/CD optimization saving $100K+ annually, and stability initiatives that increased app ratings from 4.2 to 4.6.I specialize in mobile architecture, performance, developer productivity, and cross-functional technical leadership. I thrive in fully remote, asynchronous environments and enjoy owning platform-level decisions from strategy through execution.Core strengths: Mobile platform ownership • React Native (New Architecture) • iOS & Android • CI/CD at scale • Performance & reliability • Cross-team leadership.

Experience

1. Staff Mobile Engineer

   Zego

   Mar 2023 — Present · US

   Led React Native upgrades (0.81 → 0.83) and adoption of the New Architecture across iOS and Android, reducing technical debt and improving runtime performance.• Owned mobile platform architecture and acted as technical decision-maker across multiple teams (product, backend, security, design).• Designed and implemented CI/CD pipelines that reduced build friction and saved the company $100K+ per year.• Improved app stability and observability, raising App Store and Play Store ratings from 4.2 to 4.6.• Served as go-to technical leader for mobile strategy, delivery risk mitigation, and cross-functional alignment.

Education

• Instituto Parroquial San Roque, Buenos Aires, Argentina

  HS Diploma with focus on information systems/Bachiller con orientación en sistemas informáticos, Computer and Information Sciences and Support Services

  1993 — 1998

• EMBA - Escuela de Música de Buenos Aires

  Multimedia Production/Productor Multimedia, Multimedia

  2000 — 2003

• Udacity

  Learn ARKit with Swift - Nanodegree, Augmented Reality

  2017 — 2017

• freeCodeCamp

  Full Stack Web Development Certification

  2016

• Universidad Carlos III de Madrid

  Object oriented programming, Programming fundamentals and software design/Fundamentos de programación y diseño de software

  2005 — 2006

• Udacity

  iOS Developer Nanodegree, iOS development

  2016 — 2017

Skills

• Subversion
• Mysql
• Jquery
• Actionscript
• Photoshop
• Html5
• Concept Design
• Javascript
• Html 5
• Web Development
• Swift
• Html
• Stage 3d
• React
• Feathers
• Xml
• Flash
• React Native
• Illustrator
• Eclipse
• Java
• Php
• Json
• Css