ACS.
Angelo Cristian Sarbu

Hi, I'm Cristian

Full-Stack Developer

Logroño, La Rioja

Full-stack developer focused on backend, AI and Cloud (AWS) with experience in real environments.

LinkedIn GitHub

Experience

Web Developer - Internship

Arsys
  • Developed Bash scripts and PostgreSQL services with Docker-based backups, ensuring data integrity for an AI-generated content moderation platform for IONOS.
  • Deployed and evaluated open-source LLMs (Llama, Qwen, Deepseek) over dynamic GPU infrastructure via vLLM, Docker and Proxmox, optimizing model performance.
  • Built an Angular and PHP (Slim) demo for authentication with YubiKeys and passkeys, implementing 3 use cases (WebAuthn, SSH, GPG) for an IONOS innovation initiative.
  • Continued development of Arsys's Gaia-X website: Figma design, layout and MVC implementation in Express.
  • Hexagonal Architecture and DDD/CQRS training applied to PHP.
Arsys
  • Collaborated on the European Gaia-X initiative, building a web application using technologies such as Express (Node.js), Git and Docker.
  • Training about design patterns, best practices, agile methodologies (Scrum) and Jira.

Education

Higher Diploma in Web Application Development (DAW), Dual Intensive

C.P.C. Sagrado Corazón Jesuitas

Programming in Java, PHP and Python - REST API development with Laravel - Front-end development with Angular - Relational database design, SQL and Microsoft SQL Server - HTML5 and CSS3 - Bootstrap 5 - Linux - Docker

Generación Digital: Agentes del Cambio Program

C.P.C. Sagrado Corazón Jesuitas

Digital marketing and customer processes - Big Data - Business Intelligence - Artificial Intelligence - Cybersecurity - Soft Skills - Real digital transformation plan project applied to an SMB

Bachillerato in Science & Technology

I.E.S. La Laboral

Projects & Competitions

Final Degree Project

Web app to centralise and manage 360° evaluations across the 8 schools of Fundación Educativa Jesuitas Norte, with a role system for administration, survey completion and report generation. Built using hexagonal architecture.

Angular 20 Laravel 12 MySQL Docker

Newsletter for Jesuitas Logroño - Agentes del Cambio Course

Brainstorming and structure design in Figma. Email layout built combining HTML and images to ensure optimal display across any email client (such as Gmail or Outlook), avoiding style compatibility issues.

Figma Diseño Email Design

SpainSkills 2026 - Cloud Computing

National competitor representing La Rioja (IFEMA). Real AWS scenarios: Well-Architected, high availability, networking and AI/ML with DeepRacer.

AWS Cloud Networking AI/ML

National AWS Jam 2026 - Barcelona (7th Place out of 27 Teams)

National final of the AWS Jam, organised by Institut TIC de Barcelona in collaboration with Amazon Web Services. Solved real-world troubleshooting, security, Well-Architected design and high availability scenarios (EC2, VPC, IAM, DynamoDB, ECR, ALB, CI/CD) under time pressure, competing as a team with classmates. We finished 7th out of 27 teams nationwide after an online qualifying round.

AWS EC2 IAM CI/CD

ProgramaMe 2025 & 2026

3rd place regional 2025 (Zaragoza) with qualification to the national phase at the Universidad Complutense de Madrid. 4th place regional 2026. Algorithm and data structure problems in Java.

Java Algorithms Data Structures

About me

I'm Cristian, a full-stack developer from Logroño. I like to really understand how the things I build work and I enjoy focusing on doing quality work, not just getting it to function.

I adapt quickly to change and enjoy working in a team. I'm someone who takes details seriously from the start, since I'd rather get things right the first time than have to fix them later.

Angelo at SpainSkills 2026

Tech stack

Frontend

HTML
CSS
JavaScript
TypeScript
Angular
Bootstrap
Figma

Backend

PHP
Laravel
Node.js
Express
PostgreSQL
MySQL

Cloud & Infra

AWS
Docker
Docker Compose
Nginx
Apache

Tools

Git
GitHub
Jira
Bash
Claude
JetBrains

Learning

Python
Tailwind CSS
v
vLLM
Astro
Azure
NestJS
Kubernetes

Certifications & courses

AWS Cloud Quest: Cloud Practitioner

Amazon Web Services (AWS) - Sep 2025

Hands-on learning path in the real AWS console. Covers core services: compute, storage, networking, security and databases.

Show credential

Docker Foundations Professional Certificate

Docker, Inc - May 2025

Containerisation fundamentals: images, containers, volumes, networks and Docker Compose for multi-service environments.

Download PDF

AWS Solutions Architect – Associate

Amazon Web Services (AWS)

Currently studying. Designing secure, resilient, high-performance and cost-optimised architectures on AWS.

In progress

Languages

ES Español Native
RO Română Native
GB English C2 (Cambridge)
DE Deutsch B2.2 (E.O.I.)

Hobbies

Hiking

When I'm not in front of a screen, I like going on mountain routes around La Rioja, Navarre and the Basque Country (Sierra de Cantabria, León Dormido, Clavijo). It's what always helps me disconnect and come back with more energy, motivation and fresh ideas.