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Santiago FerraraSF

Santiago Ferrara

Lead Software Architect & CTO

€200/day
Barcelona, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Santiago

As a Senior Software Architect and Full Stack Developer with over 10 years of experience, I offer a unique combination of robust infrastructure (Linux/HPC) and modern development (Next.js/React Native/Python).

I specialize in designing scalable SaaS architectures and automating processes using AI and n8n, reducing operational costs and technical debt. In my last role as Lead Architect, I designed a complete Monorepo ecosystem with complex matchmaking and RLS security algorithms.

I seek to contribute my ability to solve complex problems and my "Zero-Zombie Code" approach to help your team deliver robust and efficient software. I reside in Barcelona and have immediate availability.
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Barcelona (up to 50km)

Experience

  • CUCHA / ANIMALS ADOPT (Startup SaaS)
    Lead Software Architect & CTO
    SOCIAL NETWORKS
    June 2024 - Today (2 years and 2 months)
    Barcelona, Spain
    Unified Monorepo Architecture: Comprehensive design of a SaaS platform using Turborepo to centralize Web (Next.js) and Mobile (React Native), reducing code duplication by 40% and accelerating Time-to-Market. Algorithmic Matching Engine: Development of a Weighted Matching system based on multi-criteria data analysis to optimize resource allocation and compatibility between users and assets. Operations Automation (BizOps): Implementation of "Digital Nervous Systems" with n8n, automating legal contract generation, compliance validations, and transactional notifications. Data Security: Supabase database architecture with strict Row Level Security (RLS) policies for managing Multi-Tenant environments and protecting sensitive data (GDPR).
    React Native Supabase AI Next.js Vercel
  • AB ENERGIA
    Senior Full Stack Engineer
    ENERGY AND UTILITIES
    July 2022 - Today (4 years and 1 month)
    Spain
    Digitalization: Development and maintenance of the corporate ERP and web ecosystem (React/Django), managing high volumes of transactional data from the energy sector. Database Optimization: Tuning and maintenance of PostgreSQL clusters, ensuring critical availability and reducing query times for financial reports. API Integration: Connecting internal systems with external service providers to automate billing and customer management workflows.
    React.js Django OpenERP PostgreSQL Linux
  • MYNEWS, S.L.
    Software Engineer (Migration Specialist)
    August 2021 - July 2022 (11 months)
    Spain
    Legacy Modernization: Technical leadership in the critical migration from Python 2 to Python 3 stack, ensuring business continuity without service interruptions. Full Stack Development: Refactoring of user interfaces and optimization of SQL queries in large-scale MySQL databases (Media Big Data).

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Education

  • Certified Associate in Python Programming
    Python Institute
    - Certified Associate in Python Programming
  • University Programmer Analyst
    National University of La Plata (UNLP)
    Analista Programador Universitario

Skill set

Categories