Business Intelligence Delivers results.
I build end-to-end systems — Python/FastAPI backends, React/TypeScript frontends, integrations and AI-powered development with LLMs. 20+ years engineering, 10+ leading.
Backend → APIs → React, end to end.
One point of accountability, from raw source to the boardroom.
Full-lifecycle Business Intelligence.
Six disciplines shaped to how your business actually decides — never a template.
Backend Engineering
Python, FastAPI, Flask, Django — async services, REST & GraphQL APIs, Celery, Redis, Kafka.
Frontend & React
React, TypeScript, SPAs — component architecture, state management, product UI.
Integrations & ETL
API integrations, ERP platforms (Odoo, Saleor, Xero), event-driven workflows and data pipelines.
Cloud & DevOps
AWS and GCP, Docker, Kubernetes, CI/CD and Linux — reliable, observable deployments.
AI-Powered Development
Building products with LLMs, RAG and agentic workflows — plus AI-assisted coding to design and ship faster.
Architecture & Leadership
Microservices and distributed systems; remote delivery, stakeholder alignment, hands-on lead.
20+ years building software that ships.
I'm Oleg — a Full Stack and Lead Backend engineer in Valencia. For 20+ years I've built backend platforms, APIs, React frontends and integration-heavy systems for startups and enterprises.
I work end to end: architecture, services, ETL pipelines and the UI on top — plus AI-enabled features with LLMs. Remote-first, open to roles across Europe and worldwide.
Question to insight, in four moves.
Discover
We map your decisions, sources and the KPIs that truly matter.
Design
A pragmatic model and architecture, sized to reality and budget.
Build
Backend, APIs and UI shipped in fast, testable increments.
Enable
Training and docs so your team owns it long after I leave.
Skills & technologies.
The stack I reach for, grouped the way I use it day to day.