Isabela Pereira

Senior Engineering Manager at América Móvil · Embedded systems · hardware bring-up, embedded Linux

América Móvil

Rio de Janeiro, Brazil · BRT (UTC-3)

12+ years experience

Universidad de Chile

English, Portuguese, Spanish

Advising

Messaging unavailable

Overview

I've spent 12 years on embedded systems - first at Uber, now at América Móvil. Brought on-call pages for firmware down from 32 a week to 4. Before that: Amazon and Bradesco.

Good reasons to reach out

Advice on embedded systems
Working sessions on ARM Cortex-M

Please don't message about

Offshore staffing offers
Agency or outsourcing pitches
SEO and link-building offers

Replies on weekends

Skills

Cembedded LinuxARM Cortex-MAWShardware bring-up

AdvisingOpen to advising

closes in 3 months

Office hours for career switchers into engineering: embedded systems and AWS

Topics: embedded systems, C, AWS
Format: Async reviews
Terms: Equity
Capacity: One call a month
Best for: Teams scaling past 50 people

12 years of embedded systems. Prefer specific questions over coffee chats.

Rio de Janeiro, Brazil · remote OKawshardware bring-upembedded linux

Open

Experience

Senior Engineering Manager
Nov 2025 - Present
América Móvil · 11 mo · Full-time · Rio de Janeiro, Brazil
- Moved 85% of firmware traffic off a legacy monolith without a customer-facing incident.
- Cut p99 latency on the firmware services from 662ms to 56ms.
Embedded Engineer
Apr 2022 - Aug 2025
Amazon · 3 yr 4 mo · Full-time · Rio de Janeiro, Brazil
- Brought on-call pages for firmware down from 21 a week to 2.
Embedded Engineer
Sep 2019 - Apr 2022
Bradesco · 2 yr 7 mo · Full-time · Rio de Janeiro, Brazil
- Wrote the ARM Cortex-M service that now handles 9 million requests a day.
Senior Embedded Engineer
Sep 2017 - Sep 2019
iFood · 2 yr · Full-time · Rio de Janeiro, Brazil
- Wrote the embedded Linux service that now handles 37 million requests a day.
- Moved 70% of firmware traffic off a legacy monolith without a customer-facing incident.
Embedded Engineer
Nov 2014 - Sep 2017
Uber · 2 yr 10 mo · Full-time · Rio de Janeiro, Brazil
- Moved 82% of firmware traffic off a legacy monolith without a customer-facing incident.

References

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Education

Universidad de Chile
Ingeniería, Electronics and Communication
2009 - 2013

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