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Lucas Mendes

@lucasmendes1

Senior frontend engineer at Communify On Demand who improved cold-load performance by 24%.

Brazil
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At Communify On Demand, I solely owned the planning, reliability, and end-to-end development of a multi-tenant React Native app, integrating Firebase notifications and Crashlytics with SSO. I also improved cold-load performance by overlapping independent data fetches.

At MGM Resorts, I led development of a Bell Desk system deployed across 16 properties, replacing a third-party vendor and saving 250K+ USD annually. At CareCru Inc., I led a redesign with three frontend developers and helped establish a centralized design system and scalable styling standards.

Experience

Work history, roles, and key accomplishments

CD
Current

Senior Full Stack Engineer

Communify On Demand

Sep 2025 - Present (1 year 2 months)

Solely owned the planning, reliability, and end-to-end development of a multi-tenant React Native mobile application. Integrated Firebase for push notifications and Crashlytics, along with Single Sign-On (SSO) authentication.

MR

Senior Full Stack Engineer

Nov 2023 - Sep 2025 (1 year 10 months)

Led frontend design and development of an in-house Bell Desk web system deployed across 16 properties, saving 250K+ USD annually. Designed a micro-frontend caching strategy reducing load times by over 80% and built a centralized Permission Management Platform UI.

CI

Senior Full Stack Engineer

CareCru Inc.

Apr 2022 - Nov 2023 (1 year 7 months)

Planned and implemented a multi-access system for managers to oversee multiple practices, built with React and Module Federation. Led a team of 3 frontend developers in a complete application redesign and UI revamp, and developed an in-app email template editor.

Natura & Co logoNC

Developer Team Lead

Dec 2021 - Apr 2022 (4 months)

Led frontend delivery for a team of 6 engineers building React, React Native, and web reporting interfaces. Built React client applications with GraphQL data layer and designed a Backend for Frontend (BFF) API using Apollo GraphQL.

WE

Software Developer

Workalove Edtech

Apr 2020 - Mar 2021 (11 months)

Implemented a configurable dynamic form system using React, Material-UI, and Redux. Developed a social sharing feature and dynamic PDF certificate generation in React.

Education

Degrees, certifications, and relevant coursework

UN

UNIPDS

Postgraduate Degree, Applied Artificial Intelligence Engineering

Pursuing a postgraduate degree in Applied Artificial Intelligence Engineering, expected to complete in 2027.

Universidade Anhembi Morumbi logoUM

Universidade Anhembi Morumbi

Bachelor, Computer Engineering

Bachelor in Computer Engineering from Universidade Anhembi Morumbi, completed in January 2025.

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