Summary
Overview
Work History
Education
Skills
Awards
Professional Associations
Accomplishments
Timeline
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James Rainaldi

Application Architect & Technology Leader
Chicago

Summary

Experienced Web Application Architect with 20+ years in education and telecommunications, delivering scalable enterprise-grade solutions. Strategic technology leader driving digital transformation through innovative architecture. Passionate about building high-performing teams—mentoring talent, fostering growth, and cultivating collaboration. Skilled in aligning technical strategy with business goals to accelerate delivery and maximize ROI.

Overview

13
13
years of professional experience
4
4
years of post-secondary education

Work History

Principal Application Architect

UScellular Corporation
08.2018 - Current

Advanced from Lead to Principal Application Architect based on a proven ability to lead complex, multi-million-dollar initiatives, architect scalable enterprise solutions, and develop high-performing teams that accelerated digital transformation.


  • Led a team of 15+ web and mobile application developers, delivering solutions across 10+ critical product domains impacting 34% of company digital revenue
  • Developed enterprise-wide technology standards, establishing frontend and API best practices that improved development efficiency by 80% across 5 product domains
  • Led migration of company's Martech stack using ReactJS, React Native, Node.js, and Openshift microservices, driving 34% increase in digital transactions
  • Implemented Agile methodology for the IT Web team, improving project efficiency by 75% and reducing delivery timelines by 70%—a successful pilot later adopted enterprise-wide
  • Served as lead release coordinator for 18 annual deployments, resulting in 85% reduction in post-deployment issues while achieving 90% success rate
  • Established comprehensive mentorship program for junior and mid-level associates, resulting in improved retention and internal promotions
  • Served as lead architect for 2 company AI/LLM hackathons, showcasing foundational model applications with 45% efficiency gains in customer support workflows

Lead Full Stack Engineer

K23S
01.2015 - Current
  • Led 13+ frontend and full-stack engineering projects, implementing AngularJS and Material Design principles to improve application performance by 75%
  • Architected AWS cloud infrastructure ensuring 99.8% availability during peak usage periods with 1000+ concurrent users
  • Facilitated client meetings throughout development lifecycle, resulting in significant increase in satisfaction through improved project alignment
  • Engineered serverless solution using CloudFlare Functions, Node.js, and Google Sheets integration, reducing content delivery overhead by 75%
  • Customized 15+ websites for SMBs and nonprofits, integrating custom JavaScript, CSS, and third-party APIs to increase conversions by 50%

Software Engineer

Phantom Technologies Inc.
06.2023 - 12.2024
  • Designed and developed 20+ UI/UX enhancements, ensuring 100% on-time delivery across 5 key initiatives
  • Architected integrated localization solution managing content across 3 locales, ensuring 100% compliance with regional regulations
  • Collaborated with technical and design teams to build 15+ reusable UI and CMS components, reducing campaign development time by 75%
  • Implemented technical SEO improvements achieving top 5 position on Google Search while optimizing web vitals scores by 45%
  • Reduced page load times by 45% through advanced caching and asset optimization, directly contributing to 72% improvement in user engagement
  • Mentored junior developers on frontend best practices, standardizing development patterns and improving onboarding efficiency by 35%

Senior Technical Web Content Developer

UScellular Corporation
01.2012 - 01.2018
  • Led UI/UX team in developing UScellular's ecommerce platforms using Angular, HTML5, SASS, Oracle Commerce, and Node.js services, supporting 5M+ active users
  • Spearheaded Agile transformation using Jira, Confluence, and Git, resulting in 40% increased sprint throughput and 30% faster time-to-market
  • Managed front-end release cycles with weekly deployments and monthly feature releases, significantly reducing post-release issues
  • Developed custom PHP/MySQL CMS for product catalog management, reducing manual updates by 70% and improving content accuracy
  • Collaborated with data analysts to integrate analytics tools, accelerating UX decision-making by 35% through real-time behavioral insights
  • Delivered data-driven UX recommendations based on user studies, contributing to 20% increased engagement and 15% higher conversion rates

Education

Bachelor of Science - Information Systems and Design, Business Administration

Illinois State University
Normal, IL
08.2001 - 12.2005

Skills

Development: JavaScript, Reactjs/Native, Nextjs, Vuejs, HTML/CSS, Python, Angular, Nodejs

Infrastructure: AWS, Google Cloud, Openshift, Docker, Kubernetes, Firebase, Cloudflare, Jenkins

Data & Integration: Oracle, MySQL, MongoDB, Kafka, Google Analytics, API Design

Security & Compliance: oAuth/SAML, CCPA/GDPR, PCI DSS, ADA Compliance

Leadership: Team Management, Agile Methodologies, Solution Architecture, Mentorship, UX Design, Figma

Awards

Graduated UScellular Emerging Leader Program, 2022

Professional Associations

President, Board of Directors, McCarthy Stone Manor Condo Association, 2009 - 2011

  • Led annual budget planning and executed a $250,000 restoration project on time
  • Served as primary liaison between property management and residents, enhancing satisfaction

Accomplishments

    Graduated UScellular Emerging Leader Program Graduate (2022)

Timeline

Software Engineer

Phantom Technologies Inc.
06.2023 - 12.2024

Principal Application Architect

UScellular Corporation
08.2018 - Current

Lead Full Stack Engineer

K23S
01.2015 - Current

Senior Technical Web Content Developer

UScellular Corporation
01.2012 - 01.2018

Bachelor of Science - Information Systems and Design, Business Administration

Illinois State University
08.2001 - 12.2005
James RainaldiApplication Architect & Technology Leader