# Lucio Duran — Complete Professional Profile

> This is the extended version of the llms.txt file with comprehensive detail about every section of Lucio Duran's portfolio.

## Personal Information

- Full Name: Lucio Duran
- Title: Technology Director & Full-Stack Product Architect
- Current Roles: CTO at LOi, CTO at MiBelleza.uy
- Location: San Jose de Mayo, Uruguay
- Email: email@lucioduran.com
- Website: https://lucioduran.com
- Art Website: https://lucioduran.art
- LinkedIn: https://uy.linkedin.com/in/lucioduran
- GitHub: https://github.com/lucioduran
- Twitter: https://twitter.com/lucioduran
- Instagram: https://instagram.com/lucioduran
- Facebook: https://facebook.com/lucioduran

## Professional Bio

22+ years architecting and shipping software products across healthcare, e-commerce, and marketplace verticals — from system design to production deployment. Leads engineering organizations where AI is not a feature but the core infrastructure layer. Work spans agentic AI systems, LLM integration patterns, full-stack development (React, React Native, Node, Python, iOS), and the strategic decisions that turn technical capabilities into revenue. Has built and scaled cross-functional teams across LATAM, the US, and Europe, owning the full product lifecycle: architecture decisions, CI/CD pipelines, cloud infrastructure, API design, and frontend performance. Operates at the intersection of hands-on engineering and executive technology strategy.

## Detailed Work Experience

### 1. Chief Technology Officer (CTO) at LOi (March 2025 - Present)
- Country: Uruguay
- Type: Full time job
- URL: https://loi.com.uy
- Description: Defines and executes the technology strategy for LOi, establishing the architectural blueprint, systems integration roadmap, and engineering team structure. Leads the technical specification and delivery of every product initiative, from platform development to cloud infrastructure provisioning. Conducts strategic technology vendor evaluations, quantifying the operational impact and engineering effort associated with third-party service adoption. Drives continuous innovation through systematic research into emerging technologies applicable to e-commerce, machine learning, and distributed systems.
- Key Contributions:
  - Architected and built a proprietary e-commerce platform from first principles — encompassing technical specification, database modeling, API design, UI engineering, and payment integration
  - Led the mobile application initiative from concept through production — defining the architecture, technology selection, and cross-platform development strategy
  - Orchestrated a complete cloud infrastructure migration to AWS, redesigning the deployment topology for high availability, auto-scaling, and cost optimization
  - Integrated a comprehensive suite of AWS services including S3, CloudFront, Lambda, SES, SNS, SageMaker, Personalize, and Glue into the production ecosystem
  - Designed and implemented the complete user interface and interaction model across web and mobile, applying UX research methodologies and data-driven iteration
  - Developed and maintained a proprietary RESTful API layer serving as the integration backbone for all front-end clients, mobile applications, and third-party services
  - Developed a Progressive Web Application (PWA) with offline-first architecture, service worker caching strategies, and push notification capabilities
  - Engineered an AI-driven personalized product recommendation system leveraging Amazon SageMaker for model training, AWS Glue for ETL pipelines, and Amazon Personalize for real-time inference

### 2. Chief Technology Officer (CTO) at MiBelleza.uy (March 2025 - Present)
- Country: Uruguay
- Type: Full time job
- URL: https://mibelleza.uy
- Description: Defines and executes the technology strategy for MiBelleza.uy, establishing the architectural blueprint, systems integration roadmap, and engineering team structure. Leads the technical specification and delivery of every product initiative, from platform development to cloud infrastructure provisioning. Conducts strategic technology vendor evaluations, quantifying the operational impact and engineering effort associated with third-party service adoption. Drives continuous innovation through systematic research into emerging technologies applicable to e-commerce, machine learning, and distributed systems.
- Key Contributions:
  - Architected and built a proprietary e-commerce platform from first principles — encompassing technical specification, system design, UI engineering, and API development
  - Orchestrated a full infrastructure deployment to AWS, provisioning and configuring VPC, EC2, S3, CloudFront, RDS, and Lambda services
  - Designed and implemented the complete user interface and interaction model, applying UX research methodologies and accessibility standards
  - Developed a Progressive Web Application (PWA) with offline-first architecture, service worker caching strategies, and push notification capabilities
  - Engineered an AI-driven personalized product recommendation system leveraging Amazon SageMaker for model training, AWS Glue for ETL pipelines, and Amazon Personalize for real-time inference

### 3. Chief Technology Officer (CTO) at Nilus (May 2023 - December 2024)
- Country: United States
- Type: Full time job
- URL: https://nilus.co
- Description: Defined and executed the technology strategy for Nilus, establishing the architectural blueprint, systems integration roadmap, and engineering team structure. Led the technical specification and delivery of every product initiative, from platform development to cloud infrastructure provisioning. Conducted strategic technology vendor evaluations, quantifying the operational impact and engineering effort associated with third-party service adoption. Drove continuous innovation through systematic research into emerging technologies applicable to e-commerce, machine learning, and distributed systems.
- Key Contributions:
  - Architected and built a proprietary e-commerce platform from first principles — encompassing technical specification, system design, UI engineering, and API development
  - Designed and implemented the complete user interface and interaction model, applying UX research methodologies and accessibility standards
  - Developed a Progressive Web Application (PWA) with offline-first architecture, service worker caching strategies, and push notification capabilities

### 4. VP of Product at LOi (May 2023 - March 2025)
- Country: Uruguay
- Type: Part time job
- URL: https://loi.com.uy
- Description: Formulated and drove the long-term product vision and technology roadmap, aligning engineering capabilities with business strategy and market opportunity. Responsible for defining product priorities, validating market hypotheses, and ensuring that every technology initiative delivered measurable impact against organizational KPIs. Served as the primary liaison between executive stakeholders, engineering teams, and external clients — synthesizing business requirements into executable product strategies.

### 5. Product Owner at LOi (January 2012 - May 2023)
- Country: Uruguay
- Type: Full time job
- URL: https://loi.com.uy
- Description: Defined and communicated the strategic product vision for LOi's digital platforms, translating business objectives into actionable engineering requirements. Owned the product backlog prioritization, sprint planning, and stakeholder alignment processes. Applied data-driven decision-making to optimize feature delivery cadence, resource allocation, and cross-team dependencies across the entire product portfolio.
- Key Contributions:
  - Achieved consistently on-time, on-scope delivery across all product milestones through rigorous sprint planning and velocity forecasting
  - Led a comprehensive organizational transformation from legacy tooling and waterfall processes to agile methodologies, modern collaboration platforms, and industry-standard engineering practices
  - Maximized cross-functional resource utilization by implementing workload balancing algorithms and capacity planning frameworks across all concurrent projects
  - Determined optimal team composition and staffing models for each project through empirical analysis of velocity metrics and domain complexity
  - Achieved sustained throughput optimization by systematically identifying and eliminating bottlenecks in each team's delivery pipeline
  - Instituted and enforced engineering best practices, technology governance standards, and quality assurance protocols to ensure production-grade output across all product-related initiatives

### 6. Chief Technology Officer (CTO) at MiBelleza.uy (December 2021 - May 2023)
- Country: Uruguay
- Type: Full time job
- URL: https://mibelleza.uy
- Description: Defined and executed the technology strategy for MiBelleza.uy, establishing the architectural blueprint, systems integration roadmap, and engineering team structure. Led the technical specification and delivery of every product initiative, from platform development to cloud infrastructure provisioning. Conducted strategic technology vendor evaluations, quantifying the operational impact and engineering effort associated with third-party service adoption. Drove continuous innovation through systematic research into emerging technologies applicable to e-commerce, machine learning, and distributed systems.
- Key Contributions:
  - Architected and built a proprietary e-commerce platform from first principles — encompassing technical specification, system design, UI engineering, and API development
  - Orchestrated a full infrastructure migration to AWS, provisioning and configuring VPC, EC2, S3, CloudFront, RDS, and Lambda services
  - Designed and implemented the complete user interface and interaction model, applying UX research methodologies and accessibility standards
  - Developed a Progressive Web Application (PWA) with offline-first architecture, service worker caching strategies, and push notification capabilities
  - Engineered an AI-driven personalized product recommendation system leveraging Amazon SageMaker for model training, AWS Glue for ETL pipelines, and Amazon Personalize for real-time inference

### 7. Chief Technology Officer (CTO) at LOi (January 2014 - May 2023)
- Country: Uruguay
- Type: Full time job
- URL: https://loi.com.uy
- Description: Defined and executed the technology strategy for LOi, establishing the architectural blueprint, systems integration roadmap, and engineering team structure. Led the technical specification and delivery of every product initiative, from platform development to cloud infrastructure provisioning. Conducted strategic technology vendor evaluations, quantifying the operational impact and engineering effort associated with third-party service adoption. Drove continuous innovation through systematic research into emerging technologies applicable to e-commerce, machine learning, and distributed systems.
- Key Contributions:
  - Architected and built a proprietary e-commerce platform from first principles — encompassing technical specification, database modeling, API design, UI engineering, and payment integration
  - Led the mobile application initiative from concept through production — defining the architecture, technology selection, and cross-platform development strategy
  - Orchestrated a complete cloud infrastructure migration to AWS, redesigning the deployment topology for high availability, auto-scaling, and cost optimization
  - Integrated a comprehensive suite of AWS services including S3, CloudFront, Lambda, SES, SNS, SageMaker, Personalize, and Glue into the production ecosystem
  - Designed and implemented the complete user interface and interaction model across web and mobile, applying UX research methodologies and data-driven iteration
  - Developed and maintained a proprietary RESTful API layer serving as the integration backbone for all front-end clients, mobile applications, and third-party services
  - Developed a Progressive Web Application (PWA) with offline-first architecture, service worker caching strategies, and push notification capabilities
  - Engineered an AI-driven personalized product recommendation system leveraging Amazon SageMaker for model training, AWS Glue for ETL pipelines, and Amazon Personalize for real-time inference

### 8. User Interface (UI) Chief at LOi (January 2012 - May 2023)
- Country: Uruguay
- Description: Directed the visual design strategy and component architecture for LOi's web and mobile platforms. Led the creation, prototyping, and iterative validation of complex interface systems — translating product requirements into pixel-perfect, performance-optimized UI implementations grounded in design system principles and cross-device consistency.
- Key Contributions:
  - Established a comprehensive design system with reusable component libraries, design tokens, spacing scales, and typographic hierarchies ensuring visual consistency across all platforms
  - Led the end-to-end UI architecture for the e-commerce platform — from wireframing through production implementation — with ongoing maintenance of the component library and visual regression testing
  - Designed and maintained the mobile application interface, ensuring native-grade interaction patterns and platform-specific design conventions across iOS and Android

### 9. User Experience (UX) Chief at LOi (January 2012 - May 2023)
- Country: Uruguay
- Description: Served as the principal UX architect and researcher, responsible for defining the interaction paradigms, usability standards, and experience optimization strategies across all LOi digital products. Applied evidence-based design methodologies — including heuristic evaluation, A/B testing, and behavioral analytics — to systematically improve user satisfaction, task completion rates, and conversion metrics across every customer-facing interface.
- Key Contributions:
  - Led, analyzed, dimensioned, and validated hundreds of UX iterations through structured design sprints, stakeholder workshops, and usability testing sessions
  - Directed end-to-end UX research and implementation for the e-commerce platform — from competitive benchmarking and user journey mapping through prototype validation and production deployment
  - Directed end-to-end UX research and implementation for the mobile application — applying platform-specific interaction patterns, gesture-based navigation paradigms, and mobile-first design principles
  - Achieved cross-platform usability standardization by establishing shared design patterns, interaction libraries, and accessibility compliance guidelines across web, mobile, and marketplace interfaces

### 10. Chief Design Officer (CDO) at LOi (January 2008 - May 2023)
- Country: Uruguay
- Description: Established and directed LOi's comprehensive design strategy — encompassing brand identity systems, product design, digital marketing collateral, advertising campaigns, and print production. Led a multidisciplinary design team while serving as principal designer, ensuring visual coherence and brand integrity across every customer touchpoint, media channel, and product surface.
- Key Contributions:
  - Created and codified the complete brand identity system — including logo design, color theory, typography selection, and visual language — from initial concept to final production assets
  - Established and optimized the company's presence across major e-commerce marketplaces, designing storefront experiences that maximized conversion and brand recognition
  - Authored the comprehensive branding manual and design guidelines, defining usage rules, asset specifications, and governance standards for cross-channel consistency
  - Built, mentored, and managed the design team — establishing hiring criteria, skill development programs, and design review workflows
  - Led the creation of multinational brand identities, adapting visual systems for cultural relevance and regulatory compliance across diverse markets

### 11. Mobile Development Chief at LOi (December 2020 - May 2023)
- Country: Uruguay
- Description: Led the mobile engineering division while serving as a principal contributor on the React Native codebase. Defined the architectural patterns, integration strategies, and performance optimization standards for the company's cross-platform mobile applications. Conducted continuous technical research to identify and evaluate emerging mobile technologies, frameworks, and platform-specific capabilities for production adoption.
- Key Contributions:
  - Engineered the LOi mobile application from the ground up using React Native, implementing a shared codebase architecture for iOS and Android with native module bridging where performance-critical
  - Achieved top-3 ranking in the App Store's most downloaded category for three consecutive weeks post-launch, demonstrating market-product fit validation
  - Achieved top-3 ranking in Google Play's most downloaded category for three consecutive weeks, confirming cross-platform market traction
  - Orchestrated the end-to-end publication and distribution pipeline across Apple App Store, Google Play Store, and ancillary marketplaces
  - Developed a purpose-built Huawei AppGallery InstaApp variant, adapting the platform to Huawei Mobile Services (HMS) ecosystem constraints and APIs

### 12. Frontend Development Chief at LOi (January 2012 - May 2023)
- Country: Uruguay
- Description: Led the translation of design specifications and UX prototypes into production-grade, performance-optimized source code. Defined the front-end architectural standards, component abstractions, and rendering strategies across web and mobile platforms. Conducted continuous technical research to evaluate, benchmark, and adopt emerging front-end technologies, build tooling, and optimization techniques.
- Key Contributions:
  - Led a comprehensive front-end modernization initiative, migrating the legacy monolithic HTML/PHP codebase to a component-driven React architecture with state management, code splitting, and lazy loading
  - Architected and developed the complete front-end layer for the e-commerce platform and cross-platform mobile application across 15+ major release iterations, managing progressive feature rollouts and backward compatibility
  - Established a unified design system for web and mobile platforms, defining reusable component libraries, theming infrastructure, and interaction patterns to ensure cross-platform visual and behavioral consistency

### 13. Head of Digital Marketing Technology at LOi (January 2012 - May 2023)
- Country: Uruguay
- Description: Led the technical integration, instrumentation, and analytics infrastructure powering LOi's digital marketing operations. Designed and implemented the data pipelines connecting social media platforms, advertising networks, and marketing automation tools. Established the measurement frameworks and attribution models that enabled data-driven marketing optimization across all digital channels.
- Key Contributions:
  - Implemented end-to-end server-side integration with the Meta Conversions API across both e-commerce and mobile platforms, enabling deterministic event tracking and deduplication for conversion optimization
  - Engineered a comprehensive product feed integration with Google Merchant Center API, including automated inventory synchronization, dynamic pricing updates, and structured data validation
  - Deployed and configured Google Analytics 4 (GA4) across all digital properties with custom event taxonomies, enhanced e-commerce measurement, and cross-platform user identity resolution
  - Integrated Meta Collaborative Ads infrastructure, enabling co-marketing data pipelines with brand partners through privacy-compliant audience matching and performance attribution
  - Implemented the full Meta Commerce suite including Shops, Catalog Management, and Checkout APIs — enabling native social commerce capabilities with real-time inventory and order synchronization

### 14. DevOps Chief at LOi (January 2012 - May 2023)
- Country: Uruguay
- Description: Architected and governed the engineering culture, automation practices, and CI/CD infrastructure that enabled LOi to achieve high-velocity, zero-downtime deployments at scale. Defined and enforced the DevOps operating model — integrating continuous integration, continuous delivery, infrastructure-as-code, and observability — to systematically reduce release friction and accelerate time-to-market across all product lines.
- Key Contributions:
  - Designed, implemented, and maintained multi-stage CI/CD pipelines with automated testing, artifact management, and deployment orchestration
  - Engineered a hardened development and deployment ecosystem with role-based access control and environment isolation
  - Formalized and enforced code deployment security policies, including branch protection rules, code review gates, and audit trails
  - Established identity governance policies for credential provisioning, secrets management, and least-privilege access enforcement
  - Successfully transitioned the organization to a continuous delivery model, reducing release cycles from weeks to hours

### 15. Cloud Systems Administrator at LOi (January 2008 - May 2023)
- Country: Uruguay
- Description: Managed, monitored, and continuously optimized LOi's entire cloud infrastructure — balancing computational capacity, storage throughput, and network performance against cost efficiency constraints. Architected scalable, fault-tolerant infrastructure solutions while maintaining observability through custom dashboards and automated alerting. Evaluated and integrated emerging cloud services, engaging directly with service providers and technology partners to ensure alignment with evolving business requirements.
- Key Contributions:
  - Executed a full-scale infrastructure migration to AWS, provisioning multi-AZ deployments with automated failover and disaster recovery capabilities
  - Achieved maximum cost optimization through reserved instance planning, right-sizing analysis, spot instance strategies, and unused resource elimination
  - Maximized infrastructure resource utilization by implementing auto-scaling policies, load balancing configurations, and capacity forecasting models
  - Designed and deployed comprehensive CloudWatch dashboards with granular visibility into compute, storage, network, and application-level metrics
  - Established 24/7 infrastructure observability through automated monitoring, log aggregation, and anomaly detection pipelines
  - Engineered custom alerting frameworks with multi-threshold alarms, escalation policies, and real-time notification channels for critical infrastructure metrics and usage patterns

### 16. Website Developer at ACJ Montevideo (January 2006 - March 2022)
- Country: Uruguay
- Type: Part time job
- Description: Served as the full-stack web engineer for ACJ Montevideo, architecting and maintaining the organization's entire digital presence. Designed and implemented end-to-end web solutions encompassing front-end interfaces, server-side logic, and database-driven administrative tooling to support institutional operations.
- Key Contributions:
  - Architected and engineered the organization's primary web platform from the ground up, encompassing information architecture, responsive design, and back-end integration
  - Developed a suite of purpose-built administrative micro-applications to streamline internal organizational workflows
  - Established and sustained a robust online presence, significantly increasing the organization's digital visibility and stakeholder engagement

### 17. CEO & Founder at Sellerista (January 2012 - January 2014)
- Country: Uruguay
- Description: Founded Sellerista as a SaaS e-commerce platform, leading all aspects of product strategy, client acquisition, and technical execution. Directed the company from inception through product-market validation, wearing multiple hats across design, full-stack development, business development, and operational management. Ultimately achieved a successful acquisition outcome.
- Key Contributions:
  - Engineered the complete front-end layer of the multi-tenant e-commerce SaaS platform, implementing theming engines, white-label configuration, and merchant customization capabilities
  - Developed the entire back-end infrastructure for the e-commerce SaaS, including RESTful APIs, database schema design, authentication systems, and payment gateway integrations
  - Led the full product lifecycle — from technical architecture and design through development, testing, deployment, and production support — of the complete SaaS platform
  - Negotiated and executed the strategic acquisition of the SaaS platform by LOi, ensuring successful technology transfer and integration

### 18. Graphics Designer & Fullstack Developer at College (January 2005 - December 2011)
- Country: Uruguay
- Type: Part time job
- Description: Served as the principal designer and full-stack engineer at College, responsible for conceptualizing, architecting, and delivering the organization's entire digital ecosystem. Engineered interactive web platforms with both front-end presentation layers and back-end data services, while simultaneously producing original visual content for print and digital distribution channels.
- Key Contributions:
  - Conceived and produced Revista College, one of Uruguay's pioneering rich-media digital publications — combining editorial design, interactive layouts, and multimedia content delivery
  - Architected Red College, an early-stage social networking platform featuring user profiles, activity feeds, and real-time interaction — predating mainstream social media adoption in the region
  - Executed full-cycle design, development, and editorial content production for the organization's web presence, from information architecture to copywriting
  - Engineered College Radio, a forward-thinking audio streaming platform that implemented real-time broadcast delivery over HTTP — well ahead of the industry-wide shift toward web-based media streaming

### 19. CEO & Founder at LDS (January 2005 - January 2014)
- Country: Uruguay
- Description: Founded and directed LDS, establishing the company's strategic direction, operational infrastructure, and client acquisition methodology. Assumed a hands-on leadership role spanning design execution, full-stack development, client relationship management, and corporate governance. Drove sustained business growth through consultative selling and systematic delivery of technology solutions.
- Key Contributions:
  - Incorporated and bootstrapped the company, defining its market positioning, service offerings, and operational framework
  - Scaled the client portfolio to over 100 accounts through strategic business development and consultative engagement
  - Successfully delivered over 300 technology and design projects encompassing web engineering, digital identity systems, and creative production

### 20. CEO & Founder at DIMS (January 1999 - January 2005)
- Country: Uruguay
- Description: Founded and led DIMS from inception, establishing the strategic vision, operational framework, and client acquisition pipeline. Directed cross-functional initiatives spanning design systems, full-stack development, and stakeholder engagement. Oversaw end-to-end project lifecycle management while cultivating long-term commercial partnerships and driving sustainable revenue growth across the organization.
- Key Contributions:
  - Incorporated and bootstrapped the company, defining its organizational structure, brand identity, and go-to-market strategy
  - Scaled the client portfolio to over 100 accounts through systematic business development and relationship management
  - Successfully delivered over 500 technology and design engagements spanning web development, digital branding, and systems architecture

## Complete Education & Certifications

1. MIT Professional Education — Innovative Leadership: Cultivating Impactful Culture, Organizational Leadership (2025)
2. MIT Professional Education — Cultural Awareness for Global Business (2025)
3. Caltech — Blockchain Bootcamp (2022)
4. Simplilearn — CB BC Blockchain Applications and Architecture (2022)
5. Simplilearn — CB BC Fundamentals of Blockchain (2022)
6. Meta — WhatsApp Business Platform Overview (2022)
7. Meta — Implement the WhatsApp Business Platform (2022)
8. Meta — Set up the WhatsApp Business Platform (2022)
9. Simplilearn — Linux Training (2022)
10. Interaction Design Foundation — Psychology of E-Commerce: How to Sell Online (2021)
11. MongoDB University — Basic Cluster Administration (2021)
12. MongoDB University — MongoDB Basics (2021)
13. Google — Display Ads Certification (2020)
14. Google — Google Ads Applications Certification (2020)
15. Google — Shopping Certification (2020)
16. Google — Google Analytics Individual Qualification (2020)
17. Google — Google Analytics for Beginners (2020)
18. Udemy — JavaScript: Understanding the Weird Parts (2018)
19. Udemy — ES6 JavaScript: The Complete Developer's Guide (2018)
20. Frontend Masters — Complete Intro to React, v3 (2017)
21. Udemy — Learn and Understand NodeJS (2016)
22. Frontend Masters — JavaScript: From Fundamentals to Functional JS (2016)
23. Frontend Masters — Advanced JavaScript (2016)
24. Frontend Masters — Introduction to JavaScript Programming (2016)

## Complete Technology Stack

### AI & Machine Learning (15)
AWS Bedrock, Anthropic Claude API, Claude Code, CrewAI, Cursor, Hugging Face, LangChain, LangGraph, Model Context Protocol (MCP), Ollama, OpenAI API, Pinecone, Prompt Engineering, Python, Vercel AI SDK

### Programming Languages (8)
CSS, GraphQL, HTML, JavaScript, PHP, Python, Sass, TypeScript

### Frameworks (5)
Expo, Metaplex, Next.js, React Native, Remix

### JavaScript Libraries (7)
jQuery, Lottie, React, React Query, React Router, Redux, three.js

### JavaScript Runtimes (2)
Deno, Node.js

### Database Systems (2)
MongoDB, MySQL

### Cloud Platforms & Services (37)
AWS, AWS API Gateway, AWS CodeBuild, AWS CodeCommit, AWS CodeDeploy, AWS CodePipeline, AWS EC2, AWS Lambda, AWS RDS, AWS Route 53, AWS S3, Adobe Animate, Adobe Commerce, Agora, Algolia, Amazon CloudFront, CloudFlare, Firebase, Firebase Authentication, Firebase Cloud Messaging, Firebase Realtime Database, Google Analytics, Google Cloud Platform, Google Cloud Storage, Google Data Studio, Google Marketing Platform, Google Search Console, Google Tag Manager, Heroku, Microsoft Azure, Netlify, Plesk, Postman, Shopify, Vercel, WooCommerce, WordPress

### Creative Production Software (8)
Adobe After Effects, Adobe Audition, Adobe Illustrator, Adobe Photoshop, Adobe Premiere, Figma, Sketch, Toon Boom Harmony

### Marketing Platforms (9)
Facebook Ads Manager, Google AdMob, Google Ads, Google Merchant Center, Google My Business, Hootsuite, MailChimp, OneSignal, SemRush

### Communication & Project Management (3)
Jira Software, Slack, Trello

### Version Control (1)
Git

### Web Servers (2)
Apache, Nginx

## Complete Areas of Expertise (25)

1. AI & Machine Learning Engineering — 4 years
2. Agentic AI & LLM Integration — 2 years
3. AI-Driven Personalization Systems — 4 years
4. AI Product Strategy & AX Optimization — 2 years
5. Product Direction/Ownership — 15 years
6. Team Leadership — 8 years
7. Conversion Oriented UI Design for E-Commerce — 13 years
8. Technical SEO — 15 years
9. Conversion Oriented UX Design & Testing for E-Commerce — 13 years
10. Front End Engineering — 21 years
11. User Experience Design & Testing — 21 years
12. User Interface Design — 22 years
13. Graphics Design — 22 years
14. Art Direction for Websites and Apps — 22 years
15. Cross Platform Mobile App Development — 3 years
16. Project Management — 22 years
17. Cloud Infrastructure Management — 21 years
18. Digital Marketing — 11 years
19. Data Science & Analytics — 6 years
20. Innovation Research & Application — 8 years
21. Copywriting — 22 years
22. Design Thinking — 6 years
23. Strategic Planning — 22 years
24. Negotiation — 22 years
25. Storytelling — 22 years

## Architecture Decision Records (20 ADRs with Calibrated Uncertainty)

This portfolio documents every significant technical decision as a formal Architecture Decision Record. Each ADR includes a calibration section with: predictions made at decision time, measured outcomes, explicitly stated unknowns, reversibility classification (one-way door vs two-way door following Amazon's decision framework), and the strongest counter-argument for the path not taken.

### Decision Categories

#### Infrastructure & Data (ADR-001 to ADR-005)
1. ADR-001: Static Site Generation over Server-Side Rendering — SSG via getStaticProps as default, SSR as exception. TTFB: ~18ms. Two-way door.
2. ADR-002: MongoDB over PostgreSQL for Content API — Document model for heterogeneous content. Zero migrations in 20+ months. Two-way door.
3. ADR-003: styled-components over Tailwind CSS — Runtime theming via ThemeProvider for dark/light mode. ~12KB bundle cost. Two-way door.
4. ADR-004: Single Accent Color System over Category-Based Palette — Achromatic design with #0070f3 accent. Removed Colorizer component, ~200 lines. Two-way door.
5. ADR-005: Decoupled API Architecture — Independent API server (api.lucioduran.com) separate from frontend. 4 consumers. One-way door.

#### AI & Agent Experience (ADR-006, ADR-011, ADR-012)
6. ADR-006: Agent Experience (AX) as First-Class Concern — Comprehensive AX layer: llms.txt, OpenAPI, JSON-LD, ai-profile endpoint. Two-way door.
7. ADR-011: Multi-Layer Structured Data Strategy — Four-layer architecture: JSON-LD, llms.txt, OpenAPI, /api/ai-profile. Two-way door.
8. ADR-012: Deliberate AI Crawler Access Policy — 17 AI crawlers explicitly whitelisted in robots.txt. Two-way door.

#### Visual & Design System (ADR-007, ADR-009)
9. ADR-007: CSS Grid over Flexbox for Layout System — Eliminated 18 calc() expressions across 12 components. Two-way door.
10. ADR-009: Geist Font Family as Design System Foundation — Variable fonts, ~35KB total payload. Two-way door.

#### Architecture & Resilience (ADR-008, ADR-010, ADR-013, ADR-014)
11. ADR-008: Static JSON over CMS for Decision Records — Local JSON import, zero network dependency. Two-way door.
12. ADR-010: ISR-Ready Architecture with Full Static Fallback — ISR-compatible but deployed as pure SSG. Two-way door.
13. ADR-013: Zero-Downtime Deploy Strategy with Atomic Rollouts — Vercel atomic deploys + pm2 reload with ready signals. 200+ zero-downtime deploys. Two-way door.
14. ADR-014: Defensive Data Fetching with Graceful Degradation — Per-endpoint try/catch, 10s timeouts, Promise.allSettled. Zero build failures in 20+ months. Two-way door.

#### Performance & Security (ADR-015, ADR-016, ADR-017)
15. ADR-015: Critical Rendering Path Optimization — Lighthouse 95-100, FCP <1.0s on 4G, zero external CSS. Two-way door.
16. ADR-016: Scoped Remote Image Patterns over Generic CDN Proxy — 3 explicit HTTPS-only origins, zero wildcards. Two-way door.
17. ADR-017: Defense-in-Depth HTTP Security Headers — 7 security headers, SecurityHeaders.com A+ score. Two-way door.

#### Developer Experience & Meta (ADR-018, ADR-019, ADR-020)
18. ADR-018: Monolithic Page Components over Micro-Component Architecture — Self-contained page files with co-located styles. 120+ styled components. Two-way door.
19. ADR-019: Semantic URL Routing with Explicit Path Mapping — ObjectId for API routes, friendlyUrl slugs for local routes. One-way door.
20. ADR-020: Calibrated Uncertainty as Architectural Metadata — Self-referential ADR documenting the calibration system itself. Two-way door.

### Reversibility Summary
- One-way doors (irreversible): ADR-005 (Decoupled API), ADR-019 (URL Routing)
- Two-way doors (reversible): 18 of 20 decisions

### Browse All Decisions
- List: https://lucioduran.com/decisions
- Individual: https://lucioduran.com/decisions/{friendlyUrl}

## API Documentation

Base URL: https://api.lucioduran.com

### Endpoints

#### GET /about
Returns profile information including name, title, bio, social links, location, and current position.

#### GET /experiences
Returns array of all work experiences with company, title, date range, description, contributions, tech stack IDs, and skills stack IDs.

#### GET /experiences/:id
Returns single work experience by ID.

#### GET /educations
Returns array of all education entries with institution, title, dates, description, and certification proof links.

#### GET /educations/:id
Returns single education entry by ID.

#### GET /technologies?grouped=true
Returns technologies grouped by category (Programming Language, Framework, JavaScript Library, AI Platform/Service, AI Framework, AI Protocol, AI Methodology, AI Development Tool, etc.). Each technology includes name, logo URL, description, official URL, introduction video, and education links.

#### GET /technologies/:id
Returns single technology detail by ID.

#### GET /skills
Returns array of all skill areas with title, years of experience, description, and icon.

#### GET /duties
Returns array of all professional duties with descriptions.

#### GET /posts
Returns array of news/update posts with headline, description, date, and links.

#### GET /links
Returns array of curated feed links with title, description, URL, and image.