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Benjamín Peña
Benjamín Peña Díaz in profile, wearing sunglasses, in front of a hillside. Black and white photograph.

Available for full-time and freelance work

Benjamín Peña Díaz

Frontend Developer & Data AnalystPower Apps · Power BI · Python

I build web interfaces and ship them to production with React, TypeScript and Tailwind. I come from data analysis, so I'm just as comfortable in Power BI, Power Apps and Python when a project calls for it.

About

Who I am

I'm a frontend developer and data analyst. I'm finishing a Computer Engineering degree at Universidad Andrés Bello in Santiago, graduating in November 2026, and I'm looking for my next full-time role while taking on freelance work.

I spent a year and a half at CMPC: first as a data analyst building Power BI dashboards, then in IT/OT Cybersecurity Operations, where I designed and built the team's internal portal, from the interface architecture through to launch.

I ship finished interfaces, not mockups. I turn a Figma design into a responsive, accessible interface — and define the visual hierarchy myself when the design doesn't exist yet.

“I make sure the final product looks good and feels solid.”

Both visually and technically

Frontend is my focus, but I'll also take on a Power BI dashboard, an internal Power Apps tool or a Python script. Having worked on both sides helps me build interfaces that understand the data they show.

Languages

Spanish
Native
English
Upper intermediate

Stack

What I work with

The tools I use day to day, grouped by what they solve. The main ones are highlighted, and what I'm still picking up is listed separately.

Frontend

  • Reactcore tool
  • TypeScriptcore tool
  • JavaScriptcore tool
  • Tailwind CSScore tool
  • HTML semántico
  • CSS Grid / Flex
  • Next.js
  • TanStack Query
  • Framer Motion
  • GSAP
  • Lenis
  • Componentes reutilizables
  • Design tokens
  • Mobile first
  • Accesibilidad WCAG

Data and back end

  • Power BIcore tool
  • Power Querycore tool
  • SQL Server
  • Oracle
  • REST / SOAP
  • Python
  • .NET
  • Java
  • IA generativa

Tools

  • Figmacore tool
  • Power Pagescore tool
  • Git / GitHub
  • Power Apps
  • Vercel
  • Vite

Currently learning

  • shadcn/ui
  • Zustand
  • Storybook
  • Vitest
  • GraphQL
  • Sass

Projects

Selected work

A few things I've built.

  • January — June 2026

    Portal de Ciberoperaciones

    Internal CMPC portal that centralises the team's daily operation and works as a service catalogue for IT and OT incidents.

    • Power Pages
    • Power Apps
    • Power BI
    • Chatbot IA
    • UX/UI

Experience

Where I've been

  1. Universidad Andrés Bello

    Thesis student · Computer Engineering

    Santiago, Chile

    2026 — Graduating November 2026Present

    Triple Resolutive Approach: a TDHC metaheuristic adapted to five combinatorial optimisation problems, with a memetic genetic algorithm in Python. Supervisor: Gustavo Gatica. In parallel, I take on freelance frontend work.

  2. CMPC

    Internship · IT/OT Cybersecurity Operations

    Santiago, Chile · Híbrido

    January — June 2026

    Built the team's internal portal with Power Pages and Power Apps, from interface design through to launch. Automated Power BI reporting over IBM BMC Helix tickets, and monitored incidents with CrowdStrike Falcon under ITIL frameworks.

  3. CMPC

    Data analyst · Internships I and II

    Santiago, Chile

    January 2025 — January 2026

    Dashboards and data models for End User Care IT and cross-functional teams. Data transformation with Power Query and AI-assisted report automation, replacing a manual consolidation process.

  4. Universidad Andrés Bello

    Computer Engineering

    Santiago, Chile

    2022 — 2026

    Full stack development (React, HTML/CSS, JavaScript, UX/UI, MVC, REST/SOAP), data analysis with Python and applied cybersecurity.