Joseph J Henderson

Senior Software Engineer
O'Fallon, ILjoehdev.comlinkedin.com/in/joehdev

Accomplished Senior Software Engineer with extensive experience pioneering front-end and full-stack solutions that prioritize user experience, engagement, and performance.

Excellent team player, evidenced by slashing frontend continuous integration from ten minutes to two and providing close mentorship to over ten engineers. Skilled in providing technical leadership on both functional and cross-functional teams to accelerate project delivery and provide best practice guidance. Proficient in React, TypeScript, and NodeJS, with a strong foundation in modern frontend and backend technologies across diverse sectors including FinTech, healthcare, and food services. Demonstrated technical excellence and a user-focused mindset by driving the development of highly praised features and comprehensive software solutions.

Areas of Expertise

  • Full Stack Development
  • Frontend Architecture
  • Tech Leadership
  • Agile Methodologies
  • Mentorship
  • Software Quality
  • User Experience
  • SPIKE Delivery & Documentation

Technical Proficiencies

  • React
  • TypeScript
  • Git
  • HTML
  • CSS
  • REST
  • Next.js
  • Tailwind
  • PostgreSQL
  • API
  • AWS
  • Jest
  • Vitest

Professional Experience

Frontend Engineer & Tech LeadFreelance | Remote | O'Fallon, ILJan 2025 - Present

Leverage expertise and technical proficiencies for high priority client features.

Senior Software EngineerAvise, Inc. | Remote | St. Louis, MOMar 2022 - Sep 2024

Drove feature development and project management collaboration on the task management feature, reducing monthly accounting close time from 20 days to five. Provided cross-team mentorship to resolve frontend bottlenecks, ensuring timely delivery across all product teams. Managed frontend package upgrades and standards to ensure a secure codebase with a solid developer experience.

  • Achieved 5 x reductions in integration time by streamlining testing process and improving overall development speed.
  • Boosted client satisfaction with 83 NPS and 94% retention rate by resolving support issues efficiently and effectively.
  • Delivered high-value features and enhancements, allowing us to reach 99% adoption of the close-management module.
  • Optimized design system’s React components, saving all engineers time and providing a consistent experience to users.

Senior Software EngineerWorld Wide Technology | Remote | St. Louis, MOOct 2015 - Feb 2022

Spearheaded and engaged in projects across industries by applying agile methodologies to enhance team efficiency and project delivery. Collaborated with client product owners and engineers to deliver customized solutions by ensuring alignment with business objectives and technical requirements. Contributed to the success of self-organized agile teams by driving innovation and pushing exceptional quality across projects, earning high performing team awards three times.

  • Enhanced client satisfaction and provided successful project outcomes by engineering customized software solutions that met unique business needs and delivered measurable improvements in efficiency, usability, and performance.
  • Achieved project efficiencies by leveraging cross-industry expertise, optimizing processes, and improving team collaboration.
  • Strengthened team performance by integrating agile best practices while leading to faster project completion and increased stakeholder alignment.

Software EngineerGadellNet Consulting Services, LLC | St. Louis, MOFeb 2014 - Sep 2015

Led custom software projects serving as engineering, support, QA, and design to establish and grow a brand new, successful software consulting division of the company. Managed client relationships to ensure project alignment by fostering strong communication and timely delivery of multiple high-impact software projects. Provided mentorship to junior developers by training on JavaScript promises, validation techniques, and efficient coding practices. Successfully launched and scaled this software consulting division, enhanced project delivery outcomes, and expanded client base through strengthened and new partnerships.

  • Led cross-functional efforts in engineering, support, QA, design, and project management to establish their software consulting division, leveraging client collaboration to achieve three impactful project deliveries.
  • Mentored junior developers in JavaScript promises and validation techniques, resulting in more efficient code and faster troubleshooting.

Key Projects

NASCAR Real Time DashboardWorld Wide Technology × Richard Petty Motorsports

  • Upgraded the application to prepare Richard Petty Motorsports for the upcoming race season, delivering real-time insights and reducing setup overhead, removing manual intervention before each race.
  • Implemented a race replay feature and UX enhancements, enabling the team to review past performances, derive new insights, and refine racing strategies.

Healthcare Inventory ManagementWorld Wide Technology × Healthcare Logistics Co.

  • Led a team tasked to revamp an underperforming project by accelerating feature delivery by 30%, close client communication, and improving code quality, which successfully restored client satisfaction and trust.

Perfect Pizza KitchenWorld Wide Technology × Little Caesars

  • Collaborated across 5 teams to build a cloud-native point-of-sale system leveraging event sourcing to synchronize real-time updates for 4,000+ stores in 30 countries, leading to Little Caesars winning an innovation award at the 2021 MURTEC Executive Summit.

Project TrackerWorld Wide Technology Internal

  • Between engagements, founded a team to create a solution to track project health and assignees.

eCommerce WebsiteGadellNet × Meat & Seafood eCommerce Co.

  • Planned and executed a custom eCommerce solution, enhancing customer satisfaction and boosting SEO, leading to business and revenue growth.

Test Taking Web AppGadellNet × Exam Proctoring Co.

  • Enhanced the candidate assessment experience and reduced 90% of administrative overhead by architecting a robust full stack solution for candidates to take tests online or via printed paper tests.

Volunteerism

Cloud-based Board Game LibraryGeekway to the West, LLC

Developed single-handedly a cloud-based board game library management system. Implement technology solutions to streamline data management by reducing reliance on paper and spreadsheet processes. Designed accurate, scalable solutions to accommodate the demand for increased convention attendance, leading to growth from 400 to 3,000 attendees. Automate play-and-win entry tracking allowing Geekway staff to eliminate 30+ man hours of error-prone work at 400 attendees.

  • Achieved significant time savings for staff and volunteers by improving operational efficiency during peak event hours.
  • Facilitated seamless expansion of convention operations and scaled system capabilities to increase attendee volume.
  • Successfully cut 10 hours of manual workload to allow near-instant winner selection.

Education

Bachelor of Science in Computer Science Truman State University

Major GPA: 3.84/4Overall GPA: 3.54/4