Daniel Zúñiga Rojas
SOFTWARE ENGINEER · COSTA RICA
Fun fact: this whole world is a little love letter to LittleBigPlanet.
STAGE 01 · FOUNDATION
2020 – 2024
CENFOTEC University
BSc Software Engineering · San José
Graduated with honors, GPA 3.5, and took the ExpoCenfo Best Project Showcase award for two separate projects.
Four years of fundamentals: architecture, databases, distributed systems, and the first production code I ever shipped.
HONORS
2× BEST PROJECT
KUBERNETES, 2026
STAGE 02 · PROJECT
JAN – MAY 2024
Tripnary
AI-powered travel recommendation platform
1 / 6
⤢ TAP TO ENLARGE
Onboarding — brand, promise, illustration, nothing else.
Kotlin Android application with a Node.js backend: authentication, live chat over WebSockets, and AI recommendations for restaurants, accommodations, attractions, personalized itineraries and trip sharing.
Integrated the OpenAI GPT-4.5 API directly, tuning prompt design, token consumption and response time to keep recommendations fast and relevant.
One of the two ExpoCenfo Best Project Showcase winners — designed and built with StellarSoft, the student team.
KOTLIN
NODE.JS
POSTGRESQL
WEBSOCKETS
GPT-4.5
STAGE 03 · ROLE
MAR – NOV 2024
West Monroe
Software Engineer II · Remote
Led the migration of 20+ enterprise applications after a corporate acquisition, inside a six-month timeline.
Built a multi-tenant Angular application monitoring deployment pipelines across enterprise clients.
Built deployment automation from the ground up with Azure DevOps, PowerShell, SSIS, SSRS and Power BI, reducing deployment times by 25% while increasing reliability.
Collaborated on critical fixes to enterprise financial systems, helping resolve high-impact issues that prevented multi-million-dollar operational losses.
Integrated Stripe, Contentful, Tealium, Braze, Mitek and Experian for payments, identity verification, analytics and marketing automation — cutting catalog and checkout load times by 30% on AutoNation's vehicle rental platform.
ANGULAR
C#/.NET
AZURE DEVOPS
STRIPE
POWER BI
CONTENTFUL
EXPERIAN
STAGE 04 · NOW
DEC 2024 – PRESENT
IBM
Semi-senior Software Engineer · Heredia, Costa Rica
1 / 5
⤢ TAP TO ENLARGE
AI risk score on new account cases — explains itself in place and in the case panel.
Own end-to-end feature delivery across IBM Cloud Fraud and Abuse platforms, with PMs, architects, QA and fraud analysts.
Sole UI/UX designer for both platforms: Figma prototypes, user flows, and the design system the teams build against.
Shipped a complete Fraud Profiles module from concept to production — UX, React Context architecture, backend APIs and PostgreSQL integration.
Redesigned dashboards, forms, tables, filtering and responsive layouts to improve analyst productivity, partnering with solution architects on frontend architecture including React Context state management at scale.
Contribute to IBM Cloud infrastructure initiatives: configuring deployment pipelines, migrating workloads to OnePipeline, and improving operational workflows.
Designed AI-assisted fraud investigation experiences built on Large Language Models — prototyping dashboards, case views and artifact tables focused on response clarity and analyst productivity, alongside the engineering conversation on latency and token optimization.
REACT
NODE.JS
POSTGRESQL
IBM CLOUD
FIGMA
LLMs
STAGE 05 · MASTER'S
JAN – NOV 2025
EUDE Business School
MSc Business Intelligence & Big Data Analytics · Madrid, online
1,125 hours, 45 ECTS credits, graduated with honors and a GPA of 3.5.
Data mining and modelling under CRISP-DM: predictive and classification models, association rules, clustering, discriminant analysis, linear and logistic regression, decision trees, neural networks, text analysis and cross-validation.
Big Data architecture across the data, information and knowledge levels — from ETL pipelines through to AI and cognitive systems.
Data-driven culture and Data by Design, AI and virtual assistants, web analytics, and information security and privacy. Closed with a Master's final project.
CRISP-DM
PREDICTIVE MODELS
NEURAL NETWORKS
BIG DATA ARCHITECTURE
DATA GOVERNANCE
CYBERSECURITY
STAGE 06 · BUILDING NOW
2026 – PRESENT
WI-TP
Webhook Ingestion & Transformation Pipeline · live in production
1 / 5
⤢ TAP TO ENLARGE
The pipeline as a live WebGL scene, with a feed of signature-verified deliveries beside it.
NestJS backend in production: GitHub OAuth, JWT guards, HMAC-SHA256 verification, ETL normalization, idempotent Postgres writes via TypeORM.
The Repositories module installs and manages GitHub webhooks programmatically through the GitHub API — no manual settings step.
Deployed to Cloud Run by GitHub Actions authenticated with Workload Identity Federation — keyless, no service account keys.
Next.js + React Three Fiber frontend streams every delivery, GitHub → Guard → Transform → Postgres, into this kind of interactive 3D scene.
The console shows real, live public data — no account needed to look around.
STAGE 07 · END OF LEVEL
GMT-6
Let's build something
Five years in, frontend-first with full-stack range across React, Node.js and TypeScript — comfortable owning DevOps with Kubernetes and CI/CD, and building AI-assisted workflows with Claude. The rare habit of designing the thing before building it. English advanced, Spanish native.
SCROLL, DRAG OR PRESS → TO WALK
→
stitching the world together…