Johann Francisco Jara Sanchez

Staff Android Engineer | Kotlin | Jetpack Compose | Mobile Architecture

johannfjs@gmail.com (+51) 990 870 011 github.com/johannfjs linkedin.com/in/johannfjs
@johannjara.dev @johannjara.dev

Career Summary

Staff Android Engineer with 10+ years of experience designing scalable mobile applications and SDKs using Kotlin and Jetpack Compose.

Strong expertise in Clean Architecture, modularization, payment systems, and SDK engineering within high-compliance environments (PCI DSS). Proven track record of leading architectural decisions, mentoring engineers, and improving engineering standards across teams. Focused on building maintainable Android platforms, increasing development velocity through CI/CD optimization, and driving technical excellence at scale.

Technical Skills

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Mobile Development & Android

Kotlin Jetpack Compose Java Clean Architecture MVVM / MVI Coroutines & Flow Hilt / Dagger2 Retrofit Room SDK Development

AI & Innovation

OpenAI APIs Gemini Firebase ML Kit Cursor NLP

DevOps & Tools

CI/CD Pipelines GitFlow Gradle Multimodule Docker Firebase

Languages

Spanish (Native C2) English (Advanced B2)

Career History

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Senior Android Developer - OpenPay (Mexico)

GLOBANT PERU
Jul. 2023 – Current

Developing payment terminal applications and SDKs for third-party integration.

  • Implemented Clean Architecture, MVVM, and PCI DSS compliance standards.
  • Designed and developed Android SDK using Kotlin for seamless payment service integration.
  • Explored AI-based transaction insights using ML Kit and Remote Config.
  • Mentored developers and contributed to internal Android Dojo sessions.
  • Gatekeeper Interviewer for Android candidates.
Stack: Kotlin, Jetpack Compose, Hilt, Coroutines, Flow, WorkManager.

Android Developer

CSTI S.A.C.
Nov. 2022 – Jun. 2023
  • Developed an Android library for payment gateway integration using Clean Architecture and MVI.
  • Integrated library with BLE (Bluetooth Low Energy) devices.
  • Created technical guidelines to standardize development.
Stack: Kotlin, Hilt, Compose, Room, Retrofit, BLE.

Android Developer (Denver, USA)

BINARIX S.A.C.
Oct. 2021 – Oct. 2022
  • Developed a sports streaming application (Phone, Tablet, TV) with online/offline playback.
  • Implemented Clean Architecture and MVI pattern.
  • Configured CI/CD pipelines and published to Google Play Store.
Stack: Android TV, Compose, Accompanist, Leanback, AWS Cognito/Amplify.

Android Developer

INETUM PERU S.A.C.
Jul. 2019 – Sep. 2021
  • Maintained life insurance mobile apps using Clean Architecture (MVVM/MVP).
  • Managed team coordination and mentoring.
  • Optimized CI/CD pipelines for release efficiency.

Android Instructor

MITOCODE
May. 2020 – Oct. 2022

Delivered Android development courses (Beginner to Advanced) focusing on Kotlin, Coroutines, Jetpack, and Clean Architecture.

Android Developer

MDP CONSULTING
Dec. 2018 – Jun. 2019
  • Enhanced life insurance apps and optimized financial product flows.
  • Developed web services in Java (Spring Framework).

Previous Roles

  • Area 51 Training Center: Android Instructor (2014 - 2020)
  • GDC Technology Limited: Android Developer (2017)
  • Cibertec: Android Instructor (2014 - 2016)
  • Advais S.A.C.: Analyst Developer C# (2013 - 2014)
  • Crossnet S.A.C.: Analyst Developer BPM (2013)

Education & Certifications

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Peruvian University of Applied Sciences (UPC)

Systems Engineering (2014 – 2015)

Cibertec

Computer and Informatic (2010 – 2013)

Certifications

  • Scrum Foundation Professional Certificate (SFPC) - 2020
  • Design Thinking - Digital Break 2019
  • J2EE Application Modeling - IBM
  • Android Mobile Applications - Area51