Renato Balcázar

Hi, Renato here!

Senior Full Stack Engineer & Technical Lead

5 years building scalable mobile and backend systems with Kotlin

Specializing in Android, Kotlin Multiplatform, Spring Boot microservices, and technical leadership

Full-stack engineer with 5 years of experience building scalable mobile and backend systems. I specialize in Android development, Kotlin Multiplatform, and Spring Boot microservices. Currently leading cross-platform development at Globant, where I architect solutions serving 100,000+ users. I'm passionate about clean architecture, mentoring developers, and building mission-driven products—like my work at Lazarillo, where I helped 10,000+ visually impaired users navigate their world. My approach combines technical excellence with strategic thinking, always understanding the business context behind technical decisions.

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About Me

I'm a full-stack engineer with 5 years of experience building scalable mobile and backend systems. I specialize in Android development, Kotlin Multiplatform, and Spring Boot microservices.

Currently at Globant, I lead cross-platform development where I architect solutions serving 100,000+ users. I'm passionate about clean architecture, mentoring developers, and building mission-driven products.

One project I'm particularly proud of is my work at Lazarillo, where I helped 10,000+ visually impaired users navigate their world through an accessibility-focused mobile app. This experience taught me the power of technology to make a real difference in people's lives.

My approach combines technical excellence with strategic thinking—I always strive to understand the business context behind technical decisions and prioritize features that deliver maximum value.

5
Years Experience
100K+
Users Served
5
Team Members Led
100%
Remote Work

Career Highlights

Key achievements and milestones from my professional journey

Technical Leadership

Leading a team of 5 engineers at Globant, mentoring developers, and driving architectural decisions

High-Impact Projects

Built systems serving 100K+ users with 99.9% uptime and improved performance metrics by 40%

Full-Stack Expertise

Proficient across mobile (Android, KMP), backend (Spring Boot), frontend (Angular), and DevOps (Docker, K8s)

Modern Architecture

Expert in microservices, Clean Architecture, SOLID principles, and migrating monoliths to scalable systems

Social Impact

Built accessibility app at Lazarillo helping 10,000+ visually impaired users navigate independently

Proven Results

Reduced code duplication by 60%, improved API performance by 40%, and cut deployment time by 50%

Technical Expertise

Comprehensive skills across the full technology stack

Mobile Development

Expert5 years

Expert Android developer with 5 years of experience building native and cross-platform mobile applications

Key Skills:

KotlinKotlin MultiplatformAndroid SDKJetpack ComposeMVVMClean Architecture+4 more

Backend Development

Advanced3 years

Building scalable backend microservices with Spring Boot serving 100K+ users

Key Skills:

KotlinSpring BootSpring SecuritySpring Data JPAPostgreSQLRedis+4 more

Frontend Development

Intermediate3 years

Creating responsive web applications with Angular and TypeScript

Key Skills:

AngularTypeScriptRxJSHTML5/CSS3JavaScriptAngular Material+1 more

DevOps & Infrastructure

Advanced3 years

Implementing CI/CD pipelines and container orchestration for scalable deployments

Key Skills:

DockerKubernetesGitLab CIGitHub ActionsAWSLinux+2 more

Architecture & Design

Advanced4 years

Designing scalable, maintainable systems with clean architecture principles

Key Skills:

MicroservicesClean ArchitectureDesign PatternsSOLID PrinciplesDDDSystem Design+2 more

Leadership & Soft Skills

Advanced3 years

Leading technical teams and mentoring developers to achieve excellence

Key Skills:

Technical LeadershipMentorshipCode ReviewCommunicationAgile/ScrumProblem Solving+2 more

Testing & Quality Assurance

Advanced5 years

Implementing comprehensive testing strategies for reliable software delivery

Key Skills:

JUnitMockitoEspressoTDDIntegration TestingTest Automation+2 more