Javier Vargas
Javier Vargas

Full Stack Software Engineer

Open to offers · Member since 20 Jul 2026
Message
Location
Colombia
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Contract, Freelance
Experience level
Senior

About

Professional summary

I am a Full Stack Software Engineer with a strong focus on frontend development using JavaScript, React, Next.js, and TypeScript, while also bringing solid backend experience with Node.js.

I have worked across fintech, e-commerce, education, and freelance environments, building scalable products and contributing to high-impact digital solutions.

My experience includes technical leadership, project management, and hands-on development, and I regularly apply agile practices such as Scrum and Kanban to deliver efficiently.

I have contributed to projects in Chile, Colombia, the United States, and Spain, which has helped me adapt to international teams and complex business contexts.

I enjoy working on microservices, microfrontends, identity platforms, and modern web applications, especially when the goal is to improve scalability, maintainability, and user experience.

I am comfortable using AI-assisted development workflows and a wide range of tools to accelerate analysis, implementation, testing, documentation, and delivery.

I am looking for opportunities where I can continue building robust software products, collaborate with strong engineering teams, and contribute to meaningful business outcomes.

Skills

33 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Collaboration

Data Stores

Languages & Frameworks

Experience

Career history

Backend Developer Falabella Bank

Contributed to the modernization and migration of Banco Falabella Chile's Consumer Credit origination flow, improving scalability, maintainability, and delivery velocity across distributed banking platforms. Collaborated in the evolution of microservices and microfrontend architectures supporting credit evaluation, customer onboarding, and loan origination processes. Leveraged AI-native development workflows using Claude Code, GitHub Copilot, Gemini, and OpenCode to accelerate architecture analysis, implementation, testing, migration, and technical documentation.

Full Stack Developer Caja Social Bank

Created CDT, Bre-B, FIC, and KYC digital end-to-end products for Caja Social Bank, exceeding performance goals by 200% through improved user experience. Developed the bank's Digital CDT app using microfrontends, microservices, and custom UI libraries to improve development efficiency.

Angular Developer District University

Designed and launched an app for students focused on events and biometric identification. Developed event management, data update, and notification functionality.

Full Stack Developer Ionix Zeleri

Created the back office and commerce portal for payments between merchants. Developed advanced interfaces and integrations for a multi-merchant payment link startup.

Full Stack Developer Woombat Consulting Group

Developed a SAML and OIDC identity provider with entity registration in Angular and infrastructure as code on AWS. Built an identity provider from scratch similar to Okta, OneLogin, Auth0, or Google.

Full Stack Developer Intern Ingeal

Improved scalability and functionality across internal systems and corporate web applications. Implemented 177 modules in PHP and JavaScript, a voice control system, and an automatic newsletter system.

Full Stack Developer Solumobil

Built and maintained solutions for e-commerce, technical support, and inventory management. Documented and launched two applications individually, handling data with statistics.

Education

Learning history

SENA

Technician, Software Programming

SENA

Associate Degree, Information Systems Analysis and Development

Grancolombiano Polytechnic University

Software Engineering, Software Engineering

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