Luis Vargas
Technical Lead | AWS Cloud Architect | AI-Powered Systems
About
Technical Lead focused on designing and scaling cloud-native systems using AWS and AI technologies.
Currently contributing to large-scale financial automation platforms that process over 1M+ documents per month, built on multi-tenant, distributed architectures designed for high throughput and reliability.
Strong experience working with event-driven systems, enabling efficient, fault-tolerant processing pipelines and automated workflows across complex document types.
Track record of improving system performance, scalability, and engineering productivity through architecture decisions, AI-driven workflows, and production-grade cloud solutions.
Key areas of focus
Cloud Architecture (AWS)
Designing multi-tenant, distributed systems on AWS — ECS, Lambda, SQS, EventBridge, DynamoDB, Aurora, and CDK.
Event-Driven Systems
Building high-throughput, fault-tolerant workflows with event sourcing, retry logic, and dead-letter patterns.
AI-Powered Processing
Integrating LLMs via Amazon Bedrock for document classification, extraction, and anomaly detection at scale.
Reliability & Observability
Delivering production-grade systems with structured logging, CloudWatch metrics, distributed tracing, and canary releases.
Engineering Leadership
Mentoring teams, driving architecture decisions, and establishing engineering standards across cross-functional squads.
Key Impact
Measurable outcomes delivered across large-scale, AI-powered cloud systems.
Document processing at scale across 100+ enterprise customers
Per-tenant throughput via multi-pipeline architecture (up from 10)
Document classification and data extraction with AI/ML workflows
Legacy manual workflows replaced with automated processing pipelines
Engineering team output improved with AI-assisted development
Fault-tolerant pipelines with retry logic and dead-letter queues
High-availability AWS deployments with canary release strategy
Automated delivery via SFTP, email (SES), and event-driven workflows
Experience
Technical Lead / Senior Software Engineer
Itemize Corp (via Allied Global) · Remote
Promoted from Software Engineer to Technical Lead, contributing to architecture, system design, and engineering execution for core platform systems.
- Led development of AI-powered document processing systems handling 1M+ documents monthly
- Worked on multi-tenant, event-driven architectures using AWS (ECS, SQS, Lambda, DynamoDB, EventBridge)
- Contributed to multi-pipeline architecture per customer, increasing throughput from 10 to 300+ documents per minute
- Integrated AI/ML workflows using Amazon Bedrock for classification, extraction, anomaly detection, and document matching
- Maintained 98%+ accuracy in automated document processing pipelines
- Implemented resilient systems with retry logic, dead-letter queues, and fault-tolerant distributed design
- Supported multi-region deployments with high availability and production-grade reliability
- Led and mentored a team of 6 engineers through code reviews and architecture discussions
- Contributed to engineering standards and AI-assisted development practices
- Participated in AWS architecture decisions across ECS, RDS, Aurora, DynamoDB, S3, Bedrock, EventBridge, and CloudWatch
- Improved observability using structured logging, CloudWatch metrics, and tracing
- Worked on ingestion pipelines via SFTP (AWS Transfer Family), email (SES), and automated delivery systems
Founder & Principal Software Engineer
Techxperto · Guatemala City
- Founded and ran a software consultancy delivering SaaS and enterprise solutions for clients across Latin America.
- Designed full-stack architectures from scratch — backend APIs, database schemas, cloud infrastructure, and modern frontend UIs.
- Managed end-to-end project lifecycles: discovery, estimation, development, deployment, and ongoing support.
- Built reusable component libraries and internal tooling to accelerate delivery across projects.
React Mentor
Level Up · Remote
- Mentored cohorts of junior developers in modern React patterns, hooks, state management, and component architecture.
- Designed curriculum covering real-world scenarios: API integration, performance optimization, and testing strategies.
- Provided 1:1 code reviews and pairing sessions to build strong engineering fundamentals.
Full Stack Developer
TELUS International Digital Solutions · Guatemala City
- Developed and maintained full-stack web applications serving internal and external users at enterprise scale.
- Collaborated in agile squads to deliver features across React frontends and Node.js backend services.
- Improved CI/CD pipelines and contributed to platform reliability and test coverage.
Projects
AI-First Financial Document Automation
End-to-end serverless pipeline that extracts, classifies, and processes financial documents using GenAI — replacing manual review workflows.
- Integrated Amazon Bedrock LLMs for intelligent document classification and data extraction
- Built fault-tolerant async pipelines with SQS, Lambda, and DynamoDB ensuring zero data loss
- Reduced document processing time significantly through parallel execution and smart batching
Serverless Event-Driven Platform
Scalable platform components built on AWS serverless primitives, powering high-throughput, event-driven workloads.
- Designed event sourcing patterns with SQS, SNS, and EventBridge for decoupled microservices
- Implemented comprehensive observability with CloudWatch metrics, alarms, and X-Ray tracing
- Infrastructure fully managed as code with AWS CDK, enabling consistent multi-environment deployments
Multi-Tenant Integrations Hub
Centralized integration layer managing connectors, workflows, and data synchronization across multiple tenant environments.
- Architected tenant isolation patterns for secure multi-tenant data processing
- Built configurable workflow engine supporting custom connector logic per tenant
- Implemented retry, circuit breaker, and dead-letter patterns for reliable integrations
Techxperto SaaS Platform
Full-stack SaaS product built from the ground up for enterprise clients, featuring modern UI and scalable backend services.
- Designed and shipped complete product from architecture to production deployment
- Built modular React frontend with reusable component library and design system
- Implemented secure API layer with authentication, authorization, and rate limiting
Trading Signals & ML Experimentation
Side project exploring machine learning models for market signal detection and automated trading strategy backtesting.
- Built data pipelines for real-time market data ingestion and feature engineering
- Experimented with ML models for pattern recognition and signal generation
- Developed backtesting framework to validate strategies against historical data
Skills
Cloud & Architecture
AI & Automation
Backend
Databases
DevOps
Leadership & Collaboration
Certifications
AWS Certified Solutions Architect - Associate
Amazon Web Services
Registered Scrum Master
Scrum Inc.
Mindfulness Facilitator
Mindfulness Without Borders
Education
B.S. in Systems Engineering
Universidad de San Carlos de Guatemala
2017 - 2021
Let's Connect
Open to collaboration on:
- High-impact cloud and distributed systems
- AWS architecture and serverless solutions
- AI-powered automation platforms
Interested in building scalable systems that deliver real-world impact.