JONATHON O’REILLY
Accomplished Website Architect | Principal Engineer | Growth-Focused Technology Strategy Leader
AREAS OF EXPERTISE
✓ Full Stack Web Development
✓ Azure & AWS Cloud Solutions
✓ Data Warehousing
✓ API-First Design
✓ Architecture Governance
✓ Web Security Standards
✓ eCommerce Platforms
✓ Event-Driven Architecture
✓ Project Management
✓ People Leadership
✓ Product Ownership
✓ Mentoring & Coaching
CAREER HIGHLIGHTS
- Web Architecture: 12+ years of progressive web development experience, leading IT and web strategy for a national 9-figure business.
- IT Leadership: Led strategy and execution for the development of GenAI solutions, eReader Applications, data warehouses and more.
- Revenue Growth: Played a key technical role enabling Christianbook to expand from $100M in revenue to over $300M over 10 years.
- AI Security: Recently completed a master’s degree in software engineering with a focus on AI-based home security in the IoT space.
Skills & Expertise
Coding Languages
- JavaScript/Typescript
- SQL
- Perl
- Python
- Java
- HTML/CSS
Databases
- Postgres
- MySQL
- Oracle
- Elasticsearch
- Redis
- Neo4j
- MongoDB
Technology
- Node.js
- React (Remix/NextJS Frameworks)
- React Native
- JQuery
- Django
Other
- Azure
- AWS
- Supabase
- Google Analytics
- Akamai Platform
- Gitlab/Github
- Linux/Unix
Work Experience
Web Architect
Promoted into this senior architecture role at the large online retailer, holding accountability for leading enterprise-scale web and data initiatives, managing cross-functional teams and vendors, and shaping technology strategy in collaboration with executives.
AI Integration: Deployed an AI chatbot to handle level 1 and 2 support, reducing customer service workload while improving response time and consistency. Partnered with stakeholders to ensure adoption and performance of this new AI solution.
Platform Development: Directed a 3-person team to design and launch a product information management system in 4 months, streamlining vendor onboarding and enabling 10+ publishers to self-manage product data with improved accuracy.
Cloud Data Strategy: Led a hybrid team of 5 staff and 8 consultants to deliver an Azure Synapse data warehouse in 6 months, completing knowledge transfer within 9 months, and rolled out Power BI dashboards to 80+ business users company-wide.
Attribution Modeling: Built a fractional order attribution system applying time decay and last-touch models, collaborating with executives to track KPIs, align departmental budgets, and monitor company-wide sales goals across all business units.
Architecture Transformation: Spearheaded migration from monolith to microservices, designing NodeJS APIs and integrating Akamai CDN, resulting in 10% offload of requests while enhancing scalability, security, and performance across 40 websites.
DevOps Acceleration: Introduced GitLab SCM and CI/CD pipelines, cutting deployment cycles from 4 weeks to 1 week while ensuring safe, transparent, and traceable processes that improved developer productivity and operational reliability.
Mobile App Modernization: Consolidated 2 native eReader codebases into a React Native platform for both iOS and Android, managing 4 team members. Completed this project to achieve feature parity and a 20% increase in user retention post-launch.
Leadership & Mentoring: Managed external consultants and 4-5 interns each year, guiding projects, instilling best practices, and supporting career growth. Mentoring highlight came when one intern/mentee was promoted to a senior engineer role.
Enterprise Training: Conducted training sessions for 80+ employees on data warehouse usage and analytics tools, driving adoption across departments and enabling data-informed decision-making that supported company-wide objectives.
Senior Web & Full Stack Developer
Promoted into a senior development role to own critical web projects, integrate external vendor platforms, and lead redesigns that improved performance, security, and scalability across high-traffic eCommerce operations.
Payment Integration: Designed and maintained Chase Paymentech integration in Java to securely process millions of transactions across 70+ websites, ensuring compliance, reliability, and scalability in high-volume eCommerce operations.
Page Redesign: Led developers in redesigning product pages with responsive practices and performance enhancements, cutting average response times by 2 seconds and creating a faster, more engaging customer experience.
Web Crawlers: Built multiple NodeJS and Python-based crawlers to access external sites, automatically retrieving updated product and pricing data, reducing overhead costs and improving margin visibility across critical product categories.
Logging & Monitoring: Collaborated with management and system engineers to centralize log collection using Elastic Stack, enabling automated monitoring and real-time alerts that accelerated resolution of network issues and improved stability.
Mentorship: Coached new hires in development practices and team integration, ensuring faster ramp-up and improved longterm contributions to the development team’s success.
Web Developer
Joined as a developer to design secure internal systems, build SEO-optimized web components, and deliver user-driven enhancements that improved site functionality and streamlined daily operations in support of eCommerce growth.
Admin System: Built an admin application integrated with Active Directory, enabling role-based security and streamlining onboarding for 100+ employees, ensuring secure access control and daily operational efficiency across the organization.
SEO Enhancements: Developed SEO-optimized and responsive web components integrated with the CMS, improving discoverability and user experience while supporting traffic growth and strengthening the retailer’s online presence.
User Collaboration: Partnered with key business users to gather feedback on site features and admin interfaces, implementing object-oriented design solutions that improved usability, reduced pain points, and strengthened stakeholder engagement.
SDLC Participation: Supported all phases of the software development lifecycle, from requirements gathering through testing and release, ensuring timely delivery of features and ongoing enhancements to enterprise eCommerce systems.
Team Contribution: Collaborated with engineers across multiple disciplines to deliver reliable and secure solutions, applying coding best practices and knowledge sharing that reinforced technical quality and team cohesion.
Web Development: Designed and implemented front-end and back-end functionality across eCommerce websites, ensuring scalable performance and responsive design standards that strengthened customer engagement and conversion rates.
System Support: Maintained and enhanced existing web tools and services, ensuring stability, resolving defects, and implementing improvements that optimized performance and reliability for end-users and internal stakeholders.
Education
Bachelor of Arts in Mathematics (minor in Computer Science)
Master of Liberal Arts in Software Engineering
-
Thesis: Passive Data Collection and Threat Identification through use of a Graph Database in IoT Devices
- Design and implement a framework that collects a data flow entailing router telemetry data. This data is then transformed and stored into a graph database where ad hoc statistical examination is conducted to deduce if traffic is malicious.
-
Tech Stack: Application - Python (Django), Redis, Neo4j, Postgres, AWS - Embedded System - C, Unix