// AI Engineer Backend Automation

I ship AI to production with metrics, not demos.

Backend Developer transitioned into AI/ML. After several years developing with Java and Spring, I've moved towards applying an engineering-first approach (APIs, data, architecture, and production) to AI solutions using Python and FastAPI. I specialize in building services that transform business needs into maintainable features, incorporating RAG pipelines, semantic search, and agentic architectures. I focus on making the 'how it works' as solid as the 'what it does' through automation and robust engineering practices.

Python
FastAPI
LLMs
RAG
n8n
GCP

Let's talk → See cases ↓

// Impact in production

−35%

infrastructure cost

Chat migration to agentic architecture with Google ADK + LiteLLM
70 → 90%

document validation

GPT + Claude + Gemini ensemble with tuned OCR
8–10h

saved per setup

RAG ingestion automation with n8n + Python (Sheets → MongoDB + Pinecone)
−15%

chat latency

Migration to Google ADK with LiteLLM

// About

Backend engineer turned AI builder

I also run Esem Projects , an applied-AI agency for clinics in Spain.

// Experience

Cases in production

VITALY · AI/ML Developer ●

May 2025 – Present

Applied AI engineer with production backend: RAG, agents, and automation with real metrics.

−35%

infra cost
+20pp

validation
8–10h

/config

Developed APIs and services in Python/FastAPI for data processing and system integration.
Built ingestion and processing pipelines (documents, video) including transcription and validations.
Implemented AI capabilities with LLMs: RAG, embeddings, and vector search integrated into production middleware.
Evolution of AI assistants: managing memory/sessions, stability improvements, and post-deployment fine-tuning.

VITALY · Full-Stack Developer

Jun 2021 – May 2025

Java/Spring backend leading GKE migration and CI/CD.

GKE

led migration
3 meses

Dublin 2022

Strategic Middleware APIs: Designed and developed Spring-based middleware to optimize frontend/external services communication.
GKE Migration & Optimization: Led the migration to Google Kubernetes Engine, automating continuous delivery and optimizing deployments.
Post-Merger Data Integration: Actively participated in the data integration after the Preving/Cualtis merger, performing mapping and application adaptation.

VITALY · Intern Developer

Apr 2021 – Jun 2021

Received intensive training in Java Spring, Angular, Docker, and Kubernetes.
Participated in agile development teams, contributing to real-world projects and learning full software lifecycles.

// Projects