Deivid
Castillo
Full-Stack Developer · CRM Expert · SEO Specialist
About Me
EXP.
I am Deivid Castillo, a Software Developer with over a decade of experience building high-performance digital platforms. My approach combines deep technical foundations with a strategic, results-driven vision.
Throughout my career I have designed and built multiple platforms from scratch, integrating scalable architectures, robust APIs and automation workflows that streamline complex business operations.
My specialization in CRM integration enables me to connect complete digital ecosystems, automate sales pipelines and maximize lead conversion. My expertise in technical and strategic SEO ensures sustained organic visibility for every project I lead.
Technical Skills
Full-Stack Development
Architecture and development of complete web applications, from interactive frontend to scalable backend, focused on performance and user experience.
System Integration
Design and implementation of integrations between heterogeneous platforms using REST APIs, webhooks and middleware, ensuring reliable, real-time data flows.
Database Engineering
Modeling, optimization and administration of relational and non-relational databases. Complex query design, indexing and high-performance architectures.
Process Automation
Development of automated workflows that eliminate manual tasks, reduce errors and scale operations without increasing operational costs.
Platform Architecture
Design of modular, scalable and maintainable systems. Architectural decision-making oriented toward business growth and operational continuity.
Analytics & Reporting
Implementation of dashboards, custom reports and metrics systems that transform raw data into actionable intelligence for strategic decision-making.
CRM Expertise
Advanced GoHighLevel implementation as the central sales and marketing platform. Pipeline configuration, nurturing automations, conversion funnels and custom reporting for agencies and local businesses.
- Custom sales pipelines
- SMS / Email / WhatsApp automations
- Funnels and landing pages
- API and webhook integrations
- White-label for agencies
Implementation, customization and module development in Odoo, connecting CRM, inventory, invoicing and HR in a unified ecosystem. Version migrations and business workflow optimization.
- CRM, Sales & Inventory modules
- Custom module development
- E-commerce integration
- BI reports and dashboards
- Version migrations & upgrades
Advanced email marketing and automation strategies with ActiveCampaign. Nurturing sequence setup, lead scoring, audience segmentation and synchronization with sales platforms.
- Automated email sequences
- Lead scoring & segmentation
- E-commerce integrations
- Advanced A/B testing
- Bidirectional sync
SEO Specialist
Technical & Strategic SEO
As an SEO specialist I combine deep technical analysis with content strategy to position digital projects at the top of search results in a sustained and measurable way.
Mastery of Core Web Vitals, information architecture, link building, exhaustive technical audits and semantic content strategies based on real search intent.
My approach integrates SEO directly into the development process, ensuring every platform built is optimized from the ground up for search engines.
My Services
Platform Development
End-to-end web platform creation, from architecture to deployment — scalable, secure and production-ready.
CRM Integration
CRM implementation and customization to optimize the sales pipeline and automate customer relationship management.
SEO Positioning
Technical and content SEO strategies that generate qualified organic traffic and deliver sustainable top rankings.
Marketing Automation
Nurturing workflows, lead scoring and automated campaigns that systematically convert leads into paying customers.
Technical Consulting
Strategic advisory on systems architecture, technology selection and digital development roadmaps.
Audit & Optimization
Full technical diagnosis of existing platforms with a detailed action plan to maximize performance and growth.