Senior Software & AI Systems Engineer

I am
Marcos Carbonell
LLM Platform Engineer. RAG Systems Architect. AI Infra Specialist. Software Architect. DevOps Engineer. Full-Stack Engineer.

I build LLM platforms, RAG systems, and AI-ready web architectures that deliver measurable business outcomes. I design privacy-aware systems with audit-friendly logging, access control, and evaluation-driven iteration to reduce deployment risk and accelerate time-to-value.

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Services

What I Do

Full-Stack Web Development

Build secure, scalable web applications with modern frameworks. Deliver API design, database architecture, authentication, and responsive interfaces.

Next.js React Vue.js TypeScript Node.js FastAPI Payload CMS Hasura WordPress PHP Cypress Jest

LLM & RAG Systems Engineering

Build production-ready LLM platforms with retrieval-augmented generation, evaluation frameworks, and guardrails. Privacy-aware design with observability.

PyTorch TensorFlow Ollama pgvector TimescaleDB CUDA n8n

AI Evaluation & Guardrails

Implement AI evaluation pipelines, prompt injection defense, and content filtering. Deliver test suites, monitoring dashboards, and audit-friendly logging.

Langfuse Python Pytest MLflow Grafana n8n

Modernization & Migrations

Plan and execute legacy system modernization, cloud migrations, and architectural refactors. Deliver migration roadmaps, risk assessments, and zero-downtime strategies.

PHP WordPress MySQL PostgreSQL MariaDB MongoDB AWS GCP

CI/CD & Observability

Design continuous integration pipelines, deployment automation, and monitoring systems. Reduce release cycle time and surface production issues early.

GitLab CI/CD GitHub Actions New Relic Zabbix Docker Kubernetes

Data Engineering & Vector Databases

Build ETL pipelines, vector embedding infrastructure, and data workflows for AI systems. Deliver schema design, data quality frameworks, and RAG integrations.

Python Kafka Apache Airflow PostgreSQL pgvector TimescaleDB

Professional Experience

Work-Related Projects

AynRand.org Redesign.
Full-stack migration to Next.js and Payload CMS with 70% performance improvement.

CARLA AI Assistant.
LLM-powered chat interfaces for library search and research assistance.

Multi-Agent AI Architecture.
Microservice architecture for scalable LLM agent coordination and orchestration.

RAG Search Engine.
Vector database with semantic chunking and hybrid retrieval for document search.

Data Ingestion Pipeline.
Distributed ETL system for web scraping and data processing at scale.

LLM Fine-tuning System.
Distributed training pipeline with LoRA/DoRA on multi-GPU infrastructure.

AI Evaluation Dashboard.
Real-time metrics, integration with ingestion and finetuning pipelines, and regression detection for LLM performance.

WordPress Plugin Suite.
15+ custom plugins for CRM integration, learning management, and media tracking.

Ford Karli Conversational AI.
Voice-activated assistant built with RASA, React, FastAPI and SAJ's EVA stack for automotive research.

Mobile App Features.
Custom video player with analytics for iOS and Android using BuddyBoss framework.

Essay Filtering System.
Automated NLP pipeline for essay format validation and filtering.

ForkX Platform Development.
Developed and tested ForkX using Vue.js, Cypress, and Laravel.

ARU 3.0 Platform.
Containerized web application with Next.js, Hasura, and PostgreSQL backend.

Frontend Testing with Cypress.
Technical presentation on cost-effective E2E testing strategies.

Personal Work & Technical Demonstrations

Personal Projects

Linux Driver Development Talk.
Lecture on kernel module development at Heidelberg University.

Programming Language Translation Using RL.
AI that translates between C++, Python, and Java.

Don't Panic!
Sentiment analysis heatmap - HackZurich 2020.

VUnet & Unsupervised Disentangling Demos.
Google Colab demos for deep generative CNNs.

Tildea.
Learn to accentuate Spanish words correctly.

Prodzr.
Plan your long term goals with ease.

Natours.
A showcase tourism website built with pure CSS.

My First Website.
Pure HTML, CSS, and JavaScript - no external libraries.

Professional Background

Experience & Credentials

For a comprehensive view of my latest professional experiences, education, technical skills, and non-software occupations, please review my full CV.

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Client & Stakeholder Validation

Testimonials

Ayn Rand Institute

Vinny Freire

Senior IT Manager

Senior Software Engineer

Under Vinny's leadership, I delivered full-stack development, AI/LLM systems, and data engineering projects. Responsibilities included system architecture, code reviews, engineer mentoring, technical interviewing and hiring, cross-departmental stakeholder management, and documentation. You can contact Vinny for more information about this collaboration here.

Susi & James GmbH

Julian Gerhard

Chief Technology Officer

Lead Software Engineer

May 2022 - Oct 2022

I led a cross-functional engineering team to deliver a production-grade platform under Julian's oversight. Responsibilities included backend architecture, DevOps pipeline design, team coordination, and on-time product delivery within budget constraints. Official recommendation available here.

ForkOn GmbH

Dennis Röhner

Chief Technology Officer

DevOps Engineer

July 2019 - July 2022

I delivered CI/CD pipeline automation, infrastructure monitoring, and full-stack feature development at ForkOn GmbH. Scope included migrating legacy deployment processes, implementing automated testing frameworks, and reducing release cycle time by around 60%. Official recommendation available here.

Trio Interactive GmbH

Jan Pilarzeck

Geschäftsführer

Frontend Engineer

August 2017 - July 2019

I delivered frontend development and UI implementation for client projects at Trio-Interactive GmbH. Responsibilities included responsive web design, JavaScript development, and cross-browser compatibility testing. Official recommendation available here.

Contact

Contact Me

Marcos Carbonell