Santiago Moreno Arce

& Problem Solver

I help companies build robust software, integrate complex systems and automate business processes with backend development, Odoo, eCommerce, applied AI and blockchain.

Let's talk View services

Backend Odoo Java Node.js Python .NET Solidity Solana Spring Docker Clean Architecture DDD

// approach

Technical depth meets business understanding

Most technical problems in business are not purely technical. They sit at the intersection of architecture decisions, operational constraints and real user needs.

Santiago combines deep backend and systems experience with a practical understanding of how businesses actually operate. He has built, maintained and improved real business systems — not only written code, but shipped products and solved operational problems that matter.

The result is software that is reliable, maintainable and aligned with how your teams work.

// services

Services

Focused on the areas where technical quality and business impact intersect.

Backend Development & Architecture

Design and development of maintainable APIs, business logic, data flows and integrations. Focus on reliability and long-term maintainability.

Node.js Java PostgreSQL REST APIs Clean Architecture

Odoo Implementation & Customization

Implement, adapt and integrate Odoo with real business processes. Custom modules, workflow automation and external integrations.

Odoo Python Custom Modules ERP Automation

eCommerce Systems & Integrations

Product catalog automation, ERP and marketplace integrations, search optimization and data synchronization at scale.

Elasticsearch APIs Catalog Synchronization Pricing

Business Process Automation

Identify and automate repetitive, error-prone manual processes. Connect disparate systems into reliable automated workflows.

Process Automation Integrations Odoo APIs Monitoring

Applied AI for Business Workflows

Practical AI implementation that solves real operational problems — product enrichment, document extraction, internal assistants.

LLMs RAG Data Extraction AI Workflows Odoo + AI

Technical Consulting & Refactoring

Architecture reviews, refactoring plans, legacy modernization and technical decision support for growing development teams.

Architecture Refactoring Legacy Performance Planning

Blockchain & Web3 Development

Smart contract development, Web3 backend APIs, on-chain/off-chain data integration and blockchain system architecture.

Solidity EVM Web3 Smart Contracts DeFi

See full service descriptions

// cases

Technical Cases

Selected examples of technical problems solved in real business contexts.

eCommerce

Large eCommerce Catalog Search Optimization

A growing eCommerce platform was struggling with search performance and relevance as the product catalog grew into hundreds of thousands of SKUs.

Problem: Slow search response times, poor relevance scoring and a heavy indexing process that caused delays and inconsistencies in product data.
Solution: Redesigned Elasticsearch mappings, normalized product data, rebuilt the indexing flow with incremental updates and improved field weighting.
Result: Significantly faster search, more accurate relevance and a more maintainable indexing pipeline that reduced operational overhead.

Retail / B2B Commerce

ERP and eCommerce Integration

A B2B retailer operated their ERP and online store as disconnected systems, relying on manual exports and imports to keep data aligned.

Problem: Stock levels, pricing and product data were frequently out of sync, causing order errors and requiring constant manual intervention.
Solution: Built a robust API integration layer with batch synchronization, error handling, retry logic and operational monitoring.
Result: Reliable, near-real-time data synchronization between systems, fewer manual errors and a measurable reduction in operational overhead.

Operations / ERP

Odoo Customization for Real Business Workflows

A mid-sized company had implemented Odoo but found that standard workflows did not reflect how their teams actually operated.

Problem: The gap between standard Odoo flows and actual business processes led to workarounds, inconsistent data and low user adoption.
Solution: Developed custom modules, adapted existing workflows, added automation rules and integrated Odoo with external tools their team already used.
Result: A closer fit between the software and the business process, higher adoption and more reliable data across operations.

View all cases

// tech stack

Own products

Building products, not just delivering projects

Alongside client work, Santiago builds his own products. This includes AI-focused projects such as Kelvia.ai, which keeps him close to real product decisions, automation challenges and the practical constraints of building and shipping software.

The experience of being a technical founder informs how he approaches client work — with a product mindset, attention to maintainability and a focus on what actually delivers value.

// pricing

Transparent pricing

Hourly from €75/h, fixed project quotes and monthly retainers from €2,000. Every engagement starts with a free 30-minute call to understand the real scope.

See pricing & engagement models

Need a senior technical partner for your next project?

Tell me what you are building, what is blocked, or what needs to be improved.

Contact Santiago