About Me
AI & full-stack engineer building reliable LLM systems, voice agents, and automations that ship to production. Specialized in RAG, tool/agent orchestration, and cloud microservices. Strong focus on latency, quality evals, and cost control.
LLMs & RAG
Full-Stack
Voice AI
Infrastructure
Selected Highlights
- Voice agent containment up to ~68% with safe handoff & transcripts to CRM
- Stripe→QuickBooks payout fee reconciliation; month-end variance $0 across tested months
- RAG evaluation harness with retrieval@k/factuality checks and regression suites
Experience
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Senior Full Stack AI & Software Engineer
Current9Vectors
Building and scaling AI-powered assessment platforms that help organizations evaluate talent through intelligent, adaptive testing. Responsible for full-stack development across 4 production platforms, from LLM orchestration to frontend interfaces.
- Architecting and maintaining 4 AI assessment platforms serving thousands of users with 99.9% uptime
- Designing RAG pipelines with LangChain, Pinecone, and custom embedding models for contextual question generation
- Building autonomous evaluation agents with multi-step reasoning and tool-calling for adaptive assessments
- Implementing real-time voice AI systems for interview simulations with sub-200ms response latency
- Establishing MLOps practices including CI/CD pipelines, model monitoring, A/B testing, and evaluation frameworks
- Collaborating directly with founders on product strategy and technical roadmap decisions
Senior Full Stack AI & Software Engineer
Shining Image Of Texas, Inc.
Led the AI engineering efforts for a multi-location service business, designing and deploying production AI systems that automated customer interactions and streamlined operations. Focused on voice agents, intelligent document retrieval, and system performance optimization.
- Designed and shipped production voice agents using Twilio, Whisper, and GPT-4, handling 200+ daily customer calls with automated transcription to CRM
- Built enterprise RAG stacks with Pinecone and Weaviate, including custom evaluation harnesses measuring retrieval@k and answer correctness
- Reduced p95 API latency by 40% through streaming response paths, prompt optimization, and intelligent caching strategies
- Implemented safe human handoff protocols ensuring seamless escalation from AI to live agents when needed
- Created observability dashboards tracking model performance, cost per interaction, and customer satisfaction metrics
Full Stack Software Engineer
Shining Image Of Texas, Inc.
Sole developer responsible for building and maintaining the company's entire technology stack. Developed custom scheduling, billing, and CRM systems that transformed manual processes into automated workflows, directly contributing to 3x revenue growth over 5 years.
- Built a custom scheduling and dispatch system from scratch using Node.js, NestJS, and React, serving 50+ field technicians
- Integrated Stripe payment processing and QuickBooks accounting, reducing monthly billing time from 40 hours to 12 hours (~70% reduction)
- Developed AI-powered sales funnels and chat assistants that increased lead conversion rates by approximately 40%
- Implemented automated SMS/email reminders via Twilio, reducing no-show rates by 60%
- Established CI/CD pipelines with GitHub Actions and comprehensive test suites (Jest, Supertest) achieving 85% code coverage
- Managed AWS infrastructure including EC2, RDS, S3, and CloudFront for production deployments
Chief Technology Officer
Shining Image Of Texas, Inc.
Promoted to lead the company's digital transformation from paper-based operations to modern cloud systems. Evaluated and implemented technology solutions across all departments while establishing IT governance and security practices.
- Led complete digital transformation: migrated from paper to digital field service management (FSM) system
- Integrated QuickBooks Online with custom workflows, eliminating double-entry and reducing accounting errors by 90%
- Implemented modern payment solutions (Square, PayPal) increasing payment collection speed by 50%
- Rolled out Microsoft 365 and Google Workspace for 60+ employees with training programs
- Established security baselines including MFA, endpoint protection, and backup procedures
- Managed $150K annual technology budget and vendor relationships
IT Department Manager
Shining Image Of Texas, Inc.
Managed all IT operations for a growing service company with 50+ employees across multiple locations. Oversaw hardware, software, networking, and support while building the foundation for future digital initiatives.
- Managed IT operations including helpdesk support, hardware procurement, and software licensing for 50+ users
- Implemented asset lifecycle management system, reducing equipment costs by 25% through better tracking
- Upgraded network infrastructure across 3 office locations, improving reliability and speed
- Created IT documentation and standard operating procedures for common issues
- Negotiated vendor contracts saving $20K annually on software and services
Junior Web Designer
Shining Image Of Texas, Inc.
First role in the United States after relocating from Panama. Maintained the company's web presence and began learning the business operations that would later inform my development of custom internal systems.
- Maintained and updated WordPress website, improving page load times by 40% through optimization
- Managed DNS, SSL certificates, and domain registrations across multiple properties
- Implemented basic SEO improvements that increased organic search traffic by 35%
- Created landing pages for marketing campaigns with A/B testing
- Learned the service business domain, identifying pain points that I later solved through custom software
Technical Support Executive
Hyperware Solutions
Started my technology career at a local IT services company, providing technical support to small and medium businesses. Gained hands-on experience with hardware, networking, and customer service that built the foundation for my engineering career.
- Provided on-site and remote technical support for 100+ SMB clients across the region
- Diagnosed and repaired hardware issues including desktops, laptops, and servers
- Configured and maintained network infrastructure: routers, switches, firewalls, and VPNs
- Implemented security solutions including antivirus, backup systems, and access controls
- Trained end-users on software applications and security best practices
- Maintained 95% customer satisfaction rating through responsive and thorough support
Education
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Professional Certificate in Artificial Intelligence with Python (in progress)
Harvard University
- Advanced AI/ML concepts with hands-on Python implementation
- Focus: neural networks, NLP, computer vision, and reinforcement learning
Ph.D. in Software Engineering (in progress)
Universidad Tecnológica de Panamá
- Research focus: LLM evaluation methodologies, AI ethics, and software quality for AI systems
- Developing frameworks for measuring reliability and fairness in production AI applications
Master's in Software Engineering
Universidad Tecnológica de Panamá
- Focus: requirements engineering, software architecture, test automation, and DevOps for AI systems
- Capstone: RAG evaluation harness with retrieval@k metrics, factuality checks, and regression suites
Master's in Artificial Intelligence
Tecnológico de Monterrey
- Comprehensive AI curriculum: machine learning, deep learning, NLP, and computer vision
- Applied projects in production ML systems and model deployment
Master's in Higher Education
Universidad Latina de Panamá
- Specialized training for university-level teaching and curriculum development
- Focus: instructional design for technical topics, assessment methodologies, and AI literacy education
Master's in Computer Science
University of the People
- Advanced topics: algorithms, distributed systems, information retrieval, and NLP
- Research in LLM evaluation and fault-tolerant distributed applications
Associate's in Scientific Investigation
Institute of Higher Education for Advanced Technical Training
- Research methodology: experimental design, statistical analysis, and literature review
- Developed replicable protocols and research ethics frameworks
Associate's in Technology with Focus on Medicine
Institute of Higher Education for Advanced Technical Training
- Healthcare technology systems and medical informatics fundamentals
- Foundation for later work on MILA patient communication platform
Bachelor's in Computer Engineering
Cum LaudeUniversidad Latina de Panamá
- Core CS: data structures, operating systems, networks, and databases
- Senior project: full-stack application (React/Node/PostgreSQL) with authentication and automated tests
Languages
Testimonials
“Waldo translates vague business needs into shippable AI systems. Latency, cost, and safety are always under control.”
“Our team adopted his voice agent with minimal friction—clean handoffs and clear observability from day one.”
“The MILA RAG assistant shipped with proper evals and citations. Clinicians trusted it because the UX was measured.”