Adam Peña

Senior Software Engineer

• adamjpena.com • linkedin.com/in/adamjpena

EXPERIENCE

Senior Front-End Engineer at Cash App

Remote • Oct 2022 - Current
  • Architected a cutting-edge marketing experimentation platform, enabling data-informed decisions and driving a 15% increase in user acquisition and retention.
  • Directed performance optimization initiatives, reducing page load times by 70% and enhancing user engagement by 25%, contributing to a 10% increase in customer satisfaction scores.
  • Led an accessibility overhaul of Cash App’s website, achieving WCAG compliance and establishing automated testing tools to maintain ongoing standards, resolving 100% of accessibility issues.
  • Implemented advanced caching strategies and server-side rendering techniques, improving SEO performance and resulting in a 30% increase in organic traffic.

Software Engineer at Plaid

Remote / San Francisco, CA • Aug 2019 - Sep 2022
  • Pioneered the development of a scalable, design system-driven CMS, enabling rapid content deployment and reducing time-to-market by 60%.
  • Drove a cross-functional initiative for WCAG compliance, achieving full compliance and enhancing the user experience for over 100 million users, reducing accessibility-related support tickets by 75%.
  • Managed the apprenticeship program, mentoring over 20 junior developers, with a 100% retention rate.
  • Developed and maintained a component library, increasing code reuse by 80% and reducing bug incidence by 30% across the monorepo, saving an estimated 300 development hours annually.

Software Engineer at Visibly (formerly Opternative)

Chicago, IL • Sep 2017 - Jul 2019
  • Enhanced onboarding workflows, resulting in a 25% increase in user retention and a 4% increase in conversion rates.
  • Engineered innovative UI components for an online vision test, improving the user experience and boosting user satisfaction scores by 15%.
  • Collaborated with cross-functional teams to develop and launch a brand refresh, resulting in a 50% uplift in brand recognition and a 30% increase in user acquisition.

Front-End Developer at Arrive (formerly ParkWhiz)

Chicago, IL • Mar 2016 - Sep 2017
  • Revamped and optimized the parking widget, increasing performance by 40% and driving a 15% increase in user interaction rates.
  • Executed site-wide refreshes and A/B testing initiatives, driving a 20% increase in conversion and improving overall site revenue by 12%.
  • Collaborated with designers and product managers to launch a new B2B platform, reducing expense reporting time by 35%, and increasing business parking usage by 50%.

SKILLS

Technical: JavaScript, TypeScript, React, Next.js, Node.js, Redux, GraphQL, HTML5, CSS3, Sass, Webpack, Cypress, Jest, Docker, RESTful APIs, CI/CD, Cloud Architecture (AWS, GCP), Microservices Architecture, Serverless Computing, Web Performance Optimization, D3.js, Data Visualization

EDUCATION

University of Illinois at Urbana-Champaign

Champaign, IL • May 2014
B.S. Community Health • Dean's List