Johnathan Horner

Brooklyn New York - mrhorner819@gmail.com

Generative AI Engineer | AWS Solutions Architect Professional | AI Systems Builder

I build production AI systems at the intersection of generative AI, quantitative risk, and regulatory compliance. Three live systems -- ShootItPicks, EduAI Connect, and FinTech AI -- are fully deployed on AWS with real infrastructure, real billing, and SR 11-7 Model Risk Management governance. AWS Solutions Architect Professional and AWS Certified Generative AI Professional.

Experience

TECHNICAL SUPPORT ENGINEER

Amazon Robotics

Remote

Supported large-scale robotics and fulfillment center operational systems, troubleshooting incidents impacting warehouse automation workflows and internal applications.
Owned technical issues from initial triage through resolution while maintaining 95%+ SLA adherence across production support queues.
Investigated system incidents using CLI tools, SQL queries, and AWS monitoring services such as CloudWatch and X-Ray to analyze distributed system behavior.
Monitored system alerts and operational queues responding rapidly to incidents affecting robotics systems, networked devices, and backend services.
Provided real-time technical guidance to Fulfillment Center Operations teams restoring services affecting warehouse automation workflows.
Collaborated with engineering teams and subject matter experts during escalations to resolve complex production issues.
Performed configuration updates and change management activities to maintain system reliability and reduce operational downtime.
Created and maintained runbooks, troubleshooting documentation, and knowledge base articles improving incident response efficiency.

Jan 2024 - Aug 2024

NETWORK ADMINISTRATOR

Coalition for The Homeless

Manhattan, New York

Managed and monitored VMware vSphere virtualized infrastructure and Windows Server failover clusters supporting 150+ endpoints across multiple NYC locations while maintaining high system reliability.
Orchestrated zero-downtime network infrastructure upgrades and migrations in collaboration with IT leadership, ensuring high availability and uninterrupted business operations.
Designed and implemented Cisco networking solutions including routers, switches, firewalls, VLANs, and VPN infrastructure, improving network performance by 20%.
Strengthened network security posture through firewall rule audits, vulnerability assessments, and IDS tuning to protect against perimeter threats.
Streamlined Active Directory administration and group policy management, reducing user access issues by 30% through automation and process improvements.
Delivered executive-level technical support to C-suite leadership and 100+ staff across Microsoft 365, Teams, Zoom, and Slack platforms, maintaining >95% satisfaction scores.
Developed technical documentation and internal knowledge base articles, reducing recurring incident ticket volume by 40%.
Monitored infrastructure health and system performance across network and server environments, proactively identifying and resolving connectivity and security issues.

Jul 2023 - Oct 2025

TECHNICAL SUPPORT SPECIALIST

Roche Pharmaceuticals

Indiana-Remote

Provided technical support for pharmaceutical systems for 1000+ end users, conducting root cause analysis and training 10+ junior team members.
Utilized Salesforce dashboards, Chatter, and monitoring tools to track performance and ensure 100% compliance with HIPAA/FDA standards.
Administered 5,000+ client records in Salesforce, improving data accuracy by 30% and case handling efficiency by 20% through automation.
Partnered with engineering and product teams to streamline workflows, resulting in a 20% improvement in case handling efficiency.

Jan 2022 - Feb 2023

CLOUD SUPPORT SPECIALIST

4 the Fans Productions

Bronx, NY

Provided technical support across AWS services (EC2, VPC, S3, RDS, Lambda), resolving networking, performance, and security issues.
Architected AWS infrastructure evaluating ALB vs API Gateway, implementing both for web applications and RESTful microservices with authentication and throttling.
Led cloud migration using MGN and DMS, migrating applications and MySQL databases to AWS with zero data loss.
Deployed scalable infrastructure with CloudFormation, Elastic Beanstalk, Lambda, RDS Multi-AZ, and CloudFront CDN ensuring 99.9% uptime.
Contributed to infrastructure design aligned with AWS best practices for scalability, HA, and disaster recovery.

Jul 2020 - Jul 2021

Education

BACHELOR OF SCIENCE: INFORMATION SYSTEMS

SUNY Empire State College

Saratoga Springs, NY

Sep 2016 - Jun 2021

Professional Projects

EduAI Connect

https://eduai-connect-horner.streamlit.app | View Code

Built a full-stack RAG system on Amazon Bedrock (Claude 3 Sonnet, Titan Embeddings) that helps teachers proactively identify at-risk students

Multi-agent orchestration using LangGraph StateGraph -- Grading Agent feeds shared state to At-Risk Detection Agent

FAISS vector store with HyDE query transformation and LLM-based re-ranking for improved retrieval quality

FERPA-compliant architecture: Bedrock Guardrails PII filtering, KMS CMK encryption, least-privilege IAM scoped to specific ARNs, CloudTrail audit logging

Infrastructure as code using AWS CDK -- S3, Lambda, API Gateway, EventBridge

FinTech AI

https://fintech-ai-horner.streamlit.app | View Code

Three LangGraph AI agents in sequence with shared state: market analysis, risk assessment, and portfolio management recommendations

SR 11-7 compliant Model Risk Management framework -- 6-model inventory, independent validation suite, PSI drift detection, immutable audit log, CRO report generator

Monte Carlo CVaR engine (10,000 simulations, fat-tail mixture distribution) and five historical stress scenarios: 2008 GFC, COVID crash, rate shock, tech selloff, flash crash

RAG pipeline over earnings transcripts, portfolio positions, and macro indicators using FAISS and Titan Embeddings

SEC/FINRA compliance guardrails, KMS encryption, CloudTrail audit logging, AWS CDK infrastructure

Shoot It Picks - AI Sports Betting Analytics Platform

https://shootitpicks.com | View Code

Built and deployed a production AI analytics platform on AWS using API Gateway, Lambda, DynamoDB, S3, and CloudFront.

Implemented LangChain orchestration with a multi-step reasoning pipeline evaluating player performance, matchups, environment, betting line value, and prediction output.

Integrated dual LLM inference using Gemini and GPT models to generate predictions and confidence scoring.

Engineered a custom DirectGeminiChatModel wrapper extending LangChain BaseChatModel to resolve dependency conflicts and optimize Lambda deployment packaging.

Implemented CI/CD automation using GitHub Actions to deploy frontend assets and Lambda services on every push to main.

Defined AWS infrastructure using Terraform with monitoring, EventBridge automations, DynamoDB PITR, and Multi-AZ reliability controls.

Cloud Resume Challenge

View Live Project | View Code

Built fully serverless website using S3, CloudFront, API Gateway, Lambda, and DynamoDB

Implemented visitor counter with Python Lambda function and DynamoDB state management

Deployed infrastructure as code using CloudFormation, achieving 99.9% uptime with <500ms response time

AWS Lambda S3 CloudFront DynamoDB Python CloudFormation

AWS Textract Document Intelligence

View Code

Serverless document processing system extracting text, forms, and tables from PDFs using AWS Textract

Achieved 98% time reduction in document processing with 99%+ accuracy rate

Scaled to handle 10,000 requests/second using API Gateway and Lambda auto-scaling

AWS Textract Lambda API Gateway S3 Python

AI Meeting Intelligence & Action Tracker

View Code

Event-driven AI system using AWS Transcribe, Bedrock, and Comprehend for automated meeting transcription

Automated action item extraction and follow-through using Step Functions and SES workflows

Achieved 90% action completion rate, saving 100+ hours/week for enterprise teams

Amazon Bedrock AWS Transcribe Comprehend Step Functions Lambda DynamoDB