Alex Ballera

Senior Frontend Developer with over 6 years of experience, passionate about development, technology, and coffee that sparks ideas. I love bringing digital projects to life. 🚀☕

About me

👋 Who am I?

I’m Alex Ballera, a goal-oriented Frontend Developer with over 6 years of experience creating scalable web systems for sectors like banking, tourism, healthcare, and government. I combine technical excellence with strategic vision to align every sprint with business results.

I hold an MBA (Master of Business Administration) and I’m currently studying a Data Science degree at the University of Buenos Aires (UBA), which allows me to have a comprehensive perspective on technological development and business strategy.

🛠️ Tech Stack

Frontend & Frameworks

  • JavaScript (ES6+) & TypeScript: SOLID principles, functional programming, and performance optimization
  • Next.js & React: Server-Side Rendering (SSR), Static-Site Generation (SSG), React Hooks, Context API, Redux Toolkit
  • Angular & Angular Material: Components, Services, Microfrontend Architecture (single-spa), RxJS, Observables
  • HTML5 & CSS3: BEM, SASS, Responsive Design, Flexbox, Grid, mobile-first design

State Management & Data

  • Redux Toolkit (RTK): Slices, createAsyncThunk, Middleware
  • React Query / TanStack Query: Optimized server data management
  • RxJS: Reactive programming with Observables
  • Context API: Local state management in React

Tools & DevOps

  • Git & GitHub: Version control, branching methodologies (Git Flow, GitHub Flow)
  • Docker: Application containerization
  • CI/CD: GitHub Actions, continuous integration and deployment
  • Testing: Jest, React Testing Library, Cypress for E2E testing

Business & Strategic Skills

  • Leadership · Strategic Planning · Business Management · Corporate Finance
  • Startup Launch · Project Finance · Forecasting
  • Business Development · Team Leadership · Product Strategy
  • Marketing · Branding · Valuation

💼 Experience & Sectors

I’ve worked developing scalable web solutions in various critical sectors:

  • 🏦 Banking Sector: Interfaces for financial applications with high security and compliance standards
  • ✈️ Tourism: Booking platforms, travel management, and optimized user experiences
  • 🏛️ Government: Public management systems, citizen portals, and digital services
  • 🏥 Healthcare: Hospital management applications, telemedicine, and critical systems

Leadership & Methodologies

  • Certified Scrum Master: Facilitating multidisciplinary teams
  • Remote work: Experience leading globally distributed teams
  • Mentoring: Training and development of junior and mid-level developers
  • Code Review: Implementation of best practices and code standards

🎓 Continuous Learning

  • MBA (Master of Business Administration) - Completed
  • Data Science Degree - University of Buenos Aires (UBA) - In progress
  • Certifications: Scrum Master, Angular, React, AWS Cloud Practitioner

🚀 Projects & Innovation

Architecture & Performance

  • Design and implementation of scalable and reusable Design Systems
  • Implementation of microfrontend architectures with single-spa
  • Core Web Vitals optimization and Lighthouse metrics
  • Efficient integration with REST APIs and GraphQL

AI & Automation

  • Implementation of AI tools to increase team productivity
  • Automation of repetitive tasks with custom scripts
  • Constant experimentation with new technologies and emerging frameworks
  • Integration of GitHub Copilot and AI coding tools

🌟 Development Philosophy

My professional approach is based on fundamental principles that guide every project:

  • 🎯 Quality over quantity: Clean, maintainable, and well-documented code
  • 🤝 Effective collaboration: Teamwork and clear communication
  • 📈 Continuous learning: Always updated with the latest technological trends
  • 💼 Business impact: Every line of code must contribute to business success
  • ⚡ Performance first: Constant optimization of user experience

📊 Methodologies & Tools

Agile Development

  • Scrum: Planning, Daily Standups, Retrospectives, Sprint Reviews
  • Kanban: Continuous flow and process optimization
  • DevOps: Continuous integration and continuous delivery (CI/CD)

Testing & Quality

  • Unit Testing: Jest, React Testing Library
  • E2E Testing: Cypress, Playwright
  • Performance Testing: Lighthouse, WebPageTest
  • Code Quality: ESLint, Prettier, SonarQube

🎯 Current Goals

I’m focused on projects that combine technological innovation with social impact:

  • Development of digital solutions that improve citizen experience
  • Implementation of AI in development processes to increase efficiency
  • Contribution to open source projects and technological communities
  • Training and mentoring new talents in frontend development

📫 Let’s Connect!

I’m passionate about sharing knowledge and collaborating on projects that generate real impact. If you have an interesting project or want to chat about technology, development, or digital strategy:


“The best code is the one that solves real problems for real people” - Alex Ballera

Do you have a project in mind? Let’s talk and create something incredible together! 🚀

Work Experience

  1. Tech Lead / Senior Frontend Developer

    Boreal Technologies – Banco COMAFI

    I led the Frontend team as technical reference, defining architecture standards, workflows and sprint roadmaps. I designed and implemented the Comafi Internal App (Next.js)—exclusive corporate application—ensuring scalability and adaptability to new functionalities.
  2. Frontend Developer

    OMNi Costa Rica – Banco Vertical Salud

    Complete development of the bank health services platform, collaborating in the definition of use cases and user stories. I used React & Next.js to build independent modules for medical consultations, payments and online appointments.
  3. Frontend Developer

    G&L Group – Banco ICBC

    Responsible for the development and optimization of the Digital Banking App for Banco ICBC. I implemented microfrontend architecture with single-spa, separating user, transfer and notification modules for individual deployments.
  4. Frontend Developer

    VIDA Tec

    Development of corporate websites and portals oriented to government and tourism clients. Use of Angular (v7-v8) with SASS, BEM and state management with RxJS services.

Technological Stack

Do you need to create a website? Do you need to create a website?