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Summary

Expertise

Project Highlights

Education

Agency

SP

English:

Upper Intermediate

Sergio P.

vetted by Youteam

Vetted by YouTeam

Peru

UTC -05:00

America/Lima

English:

Upper Intermediate

5+ years of experience in Mobile Dev adept at full app dev lifecycle, using Kotlin, Java & modern frameworks.

Creative Mobile App Developer with 5 years of experience building, testing, and deploying Android apps. Skilled in Java, Kotlin, architectural patterns like MVVM and Clean Architecture as well as Firebase and SQL Server. Led mobile dev teams and managed entire app lifecycles - from concept to launch. Eager to apply my technical knowledge and leadership abilities to build innovative mobile solutions. Known for being proactive and innovative with a knack for contributing creative ideas and debugging skills to every project. Whether working solo or leading a team, I collaborate closely with stakeholders to bring ideas to life within the timeline and budget. Let's connect to see how my mobile development skills can help build your Android app!

Want to hire this engineer?

Check if Sergio is available

Expertise

Years of commercial development experience

5 years of experience

Core technologies

Kotlin 5 years
Java 2 years
Swift 1 year
Azure 1 year
Google Cloud Platform 1 year
Android 5 years

Other technologies

C#
SQL Server
Postman
Firebase
REST Api

Project Highlights

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Mobile Technical Lead

Mental Health App

Nov `23 - Feb `24

3 months

Confidential (Mental Health Medical Buisiness)

Android App for Mental Health that allows users to find Therapists and mental help with filters of location, price, specialties, etc.

Responsibilities & achievements

Take requirements from clients, design and validate those requirements, and make decisions to implement the best practices. Implement modules and lead the mobile team to meet the proposed objectives. Clean Architecture, MVVM, ViewBinding, Material Design, Koin.

C#
Kotlin
SQL Server
Postman
Retrofit
Swagger
MVVM patterns
Firebase
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Android Developer

Clinica Internacional App

Jun `23 - Oct `23

4 months

Clinica Internacional [https://www.clinicainternacional.com.pe/]

Android app for Medical Clinics that allows users to schedule medical appointments, get test results, manage their clinic account, discard appointments, pay, and re-schedule their appointments.

Responsibilities & achievements

I was in charge of maintenance, fixing bugs, updating jetpack compose views, implementing the client's new requirements, and designing solutions for different scenarios. Dagger Hilt, Clean Architecture.

Kotlin
JetPack
Retrofit
MVVM patterns
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Android Developer

Vodafone Europe App

Feb `22 - May `23

1 year

Vodafone

Android app for Vodafone's clients that allows users to manage their data bundles, buy smartphones, and manage their accounts.

Responsibilities & achievements

I was in charge of implementing the UX team designs into the application, creating modules for its future implementation of functions, making unit tests, and applying ViewBinding for views. Clean Architecture, Material Design, ViewBinding.

Kotlin
JUnit
Sonarqube
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Android Developer

Equipment Delivery App

Oct `21 - Jan `22

3 months

Caserones Lunding Mining

Android App for internal control of equipment and gift delivery for miner workers. Check if a worker has received their work equipment and their gifts for special dates like holidays, if received, show a message indicating the delivery status and check dates for the delivery of the pieces of equipment and gifts.

Responsibilities & achievements

I was in charge of taking requirements with the client's team and validating them, designing and implementing the solution with validation requested from the client, also implementing endpoints on the REST API and the SQL DB Stored Procedures to get data and insert updates of status and make validations. Clean Architecture, Koin, NFC, IR Sensor, Worker Manager.

C#
Kotlin
SQL Server
Retrofit
Swagger
MVVM patterns
Room database
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Mobile Technical Lead

WebControl App

Jan `20 - Feb `22

2 years

Chilean and Peruvian mining companies like AngloAmerican, Komatsu, Caserones Lunding Mining, Yamana.

Android App with different access control functions, workers control, evaluations for COVID-19 control, and user credential management.

Responsibilities & achievements

I was in charge of doing maintenance, bugs fixing, and implementing new requirements that clients could have asked for. GPS, NFC, ViewBinding, Material Design, Worker Manager.

C#
Kotlin
Twilio
Retrofit
MVVM patterns
Firebase
Room database
REST Api

Education

Higher education in Computer Science

Agency

Development agency #31

400+

GMT-11

Remote

Want to hire this engineer?

Check if Sergio is available