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@aleceller
Senior Software Engineer with 10 years of experience building web applications.
I am a Senior Software Engineer with a decade of experience in building fast, user-focused web applications. My expertise lies in React, Next.js, TypeScript, and Node.js, where I have honed my skills in frontend architecture and performance. I am known for writing clean code, mentoring teammates, and delivering features that make a real impact. My passion for intuitive design drives me to create tools that empower users and teams, and I thrive in fast-paced environments where clean UX and rapid value delivery are paramount.
At Smartsheet, I crafted dynamic UI modules for WorkApps, enabling non-dev teams at over 1,000 companies to launch tools without engineering lift. I significantly improved data table rendering performance by 60% and designed a shared component system that reduced redundant frontend code by 70%. My role involved integrating Smartsheet with Slack and Microsoft Teams, streamlining CI/CD automation, and mentoring junior engineers to align frontend strategy with product goals.
Previously, I played a key role at CVS Health, where I built the frontend for the COVID-19 Scheduler, supporting over 40 million appointments. I refined the UX of MinuteClinic check-in, increasing user satisfaction scores significantly. My experience at Amazon included redesigning the primary retail landing experience, leading to a 14% increase in click-through rates. I am committed to continuous improvement and delivering high-quality software solutions.
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Work history, roles, and key accomplishments
Smartsheet
Mar 2021 - Present (4 years 8 months)
Crafted dynamic UI modules for WorkApps, empowering non-dev teams at 1,000+ companies to launch tools without engineering lift, using React, Next.js, and Tailwind CSS. Tuned Data Table rendering performance by 60% with virtual scrolling and lazy loading, ensuring smooth UX even with 1M+ row datasets.
CVS Health
May 2017 - Jan 2021 (3 years 8 months)
Played a key role in building the frontend for CVS's COVID-19 Scheduler, which supported 40M+ appointments and handled daily peaks of 4M users with solid uptime and performance. Refined the UX of MinuteClinic check-in with React, React Native and Tailwind, increasing user satisfaction scores from 3.2 to 4.7 stars and cutting friction by 25%.
Amazon
Jun 2015 - Apr 2017 (1 year 10 months)
Contributed to redesigning Amazon's primary retail landing experience, leading to a 14% increase in click-through rate by modernizing UI layout and interactions using JavaScript (ES6), AUI (Amazon UI), JSP, and LESS. Reworked high-traffic UI components for dynamic loading and reduced bundle size through modular JavaScript and server-side rendering techniques, improving mobile load time by 30%.
Degrees, certifications, and relevant coursework
Bachelor of Computer Science, Computer Science
Completed a comprehensive curriculum in computer science. Gained foundational knowledge and practical skills in various areas of computing.
Software and tools used professionally
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