🏚️ Haunted House 3D (Three.js)
Interactive experience in a cemetery with dynamic weather, volumetric fog, and animated lights. The user explores a nighttime scene in real-time, ideal for web visualization or game projects.
View project ↗ Available for new projects | Portfolio — 2025 · Arequipa, Perú
André Guevara
Full-Stack Developer
I'm André Guevara — 5 years building backend services and web applications for a 1,000+ employee public institution. Java & Spring Boot with hexagonal architecture, Angular 17 & React on the frontend, and applied AI in production: a case-law search engine with RAG that answers in under a second.
01/Featured Projects
🧊 Interactive 3D Name
Dynamic render of my name with floating particles, 3D typographic geometry, and reflective environment. A visual experiment with real-time animations and custom reflections.
View project ↗
🌌 3D Galaxy Generator
Interactive simulation of a procedurally generated galaxy using Three.js, where stars orbit based on trigonometric functions. A visual experiment combining math, custom shaders, and real-time dynamic movement.
View project ↗02/Experience
15min→1s
case-law lookup, with AI
-35%
process delays
500+
daily users served
7
systems approved by decree
2023 — Present
Full-Stack Developer
Judiciary of Peru — Superior Court of Justice of Arequipa
- Built SIGEF, the flagrancy management system connecting police, prosecutors, public defenders, the judiciary and forensics — hexagonal architecture, deployed across 10+ courts.
- Shipped an AI case-law search engine with a natural-language chatbot (Ollama, embeddings, RAG): lookups went from ~15 minutes to under 1 second.
- Built a penalty calculator (React + Spring Boot) that replaced a manual spreadsheet: ~10 minutes down to seconds.
- Lead the SIJA intranet: 15+ modules, 500+ daily users, ~100 concurrent.
- Delivered PJNOTEN+, the mobile app judicial notifiers use in the field, cutting process delays by 35%.
- Seven of these systems are formally approved by Administrative Resolution; the digital copier system was adopted by another court district (Moquegua).
Java · Spring Boot · Angular 17 · React · TypeScript · Ollama / RAG · PostgreSQL · WildFly · Docker
2022 — 2023
Software Developer (Consultant)
Judicial Digitalization Project
- Built a queue / turn management system that reduced wait time by 25%.
- Implemented a digital copier workflow processing 1M+ sheets per year.
Java · Spring Boot · Angular · PostgreSQL
2024 — Present
Personal Projects
Built outside of work
- Request Processing System (.NET + Azure): event-driven REST API with ASP.NET Core and EF Core, async messaging via Azure Service Bus, deployed on AKS and Container Apps with GitHub Actions CI/CD and Azure Monitor observability.
- DrevaFit: native Kotlin Android app following Google's Now in Android architecture — feature modularization, Jetpack Compose, offline-first, Room. Published on Google Play as a closed beta.
C# · .NET · Azure (AKS, Service Bus) · Kotlin · Jetpack Compose · Docker · GitHub Actions
2021 — 2022
Software Development Intern
Superior Court of Justice of Arequipa
- Supported development and maintenance of internal judicial systems.
Java · SQL
03/I'm a developer that enjoys building things
I'm André Guevara, a full-stack developer with 5 years of experience shipping software that people rely on every day. I combine creativity and logic to craft solid backends and interfaces that resonate with users.
I currently lead the SIJA intranet at the Superior Court of Justice of Arequipa — REST APIs and microservices with Java / Spring Boot, and UIs with Angular, React and TypeScript. I'm also finishing my B.Sc. in Software Engineering (2026), and my goal is to start my own business and live from inspiring projects.
Besides coding, I enjoy playing piano, reading about persuasion, building 3D experiences with Three.js, and ideas that scale.
04/Skills
Specialty
5 yearsJava / Spring Boot
REST APIs, microservices and hexagonal architecture in production
Applied AI
RAG, embeddings and chatbots shipped to real users
Angular 17 / React
Modern and maintainable SPA interfaces
Frontend
Angular 17 / React
SPASignalsHooksState ManagementComponent Architecture
TypeScript / Tailwind / PrimeNG
Strict typingDesign systemsDataTableResponsive
Vite / Astro / Three.js
Build toolingSSRWebGL
AI & LLM
RAG / Semantic search
EmbeddingsVector searchOllamaPrompt design
Chatbot integration
Natural languageContext groundingStreaming
AI-assisted development
Claude CodeCursorWindsurfGemini CLI
Mobile
Jetpack Compose
Material 3State HoistingNavigation
React Native
ExpoHooksReanimated
Database
PostgreSQL / MySQL
RelationshipsSQL QueriesIndexes
MongoDB / Firebase
DocumentsAuthFirestore
Infrastructure
Azure / AWS
AKSContainer AppsService BusEC2S3
Docker / Kubernetes
ContainersCI/CDGitHub ActionsWildFly / Tomcat
Linux / Git
AutomationCLIVersioningScrum
In Learning
Elasticsearch
Advanced search and data analysis with Spring Boot
Kafka
Asynchronous event-based communication for microservices
AWS Lambda
Serverless backend and scalable cloud functions
05/Education and Courses
University
B.Sc. in Software Engineering — final year (2026)
Universidad Tecnológica del Perú (UTP). Currently in the final year of the Software Engineering program.
Higher Education
Degree in Software Design and Development
Professional training at the TECSUP Technological Institute (2019–2022) with a focus on programming, databases, software architecture, and agile methodologies.
Academic Specialization
Prompt Engineering for ChatGPT-4
Postgraduate course at the Catholic University of San Pablo, focused on designing, evaluating, and optimizing prompts with LLM models.
3D Graphics
Three.js Journey
Full course by Bruno Simon covering interactive 3D scenes using geometry, lighting, cameras, physics, shaders, and advanced effects with Three.js.
05/ Versions
The same CV, four times
One portfolio was not enough, so I built four. The same real information, told in four completely different ways — pick whichever one you prefer.
▞ AG-OS v2 An 80s operating system. CRT boot, draggable windows and a terminal that actually works. Open →
☷ The Code Gazette v3 My CV as a newspaper front page. Aged paper, headlines and a button to print it. Open →
◍ Orbit v4 A 3D descent. Six chapters, particles that flee the cursor and orbs with real physics. Open →