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I am an accomplished software engineer with over 10 years of experience in fullstack development. My journey has led me through many projects that require both frontend and backend expertise, where I've thrived in creating scalable web applications that enhance user experiences. I am passionate about leveraging cutting-edge technologies to drive innovation in the nonprofit sector and beyond.…

Spencer Callahan

Web Developer, Full Stack Developer, Developer, +1

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I am an accomplished software engineer with over 10 years of experience in fullstack development. My journey has led me through many projects that require both frontend and backend expertise, where I've thrived in creating scalable web applications that enhance user experiences. I am passionate about leveraging cutting-edge technologies to drive innovation in the nonprofit sector and beyond.…

Available to hire

I am an accomplished software engineer with over 10 years of experience in fullstack development. My journey has led me through many projects that require both frontend and backend expertise, where I’ve thrived in creating scalable web applications that enhance user experiences. I am passionate about leveraging cutting-edge technologies to drive innovation in the nonprofit sector and beyond.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Fullstack Engineer at Siemens AG

January 1, 2025 - March 1, 2026

Architected and developed scalable features for Grantseeker Pro using React (Next.js), TypeScript, and Vue (Nuxt). Led the migration of legacy systems to Google Cloud Platform, reducing costs and improving reliability. Built real-time data interfaces enhancing user experience.

Fullstack Engineer at Wipro LLC

October 1, 2020 - December 1, 2024

Developed and maintained fullstack web applications using React, Node.js, and TypeScript. Collaborated with managers to implement new features, optimizing PostgreSQL queries to enhance performance and reduce load times.

Web Developer at GoDaddy

June 1, 2017 - September 1, 2020

Developed responsive web applications using HTML5, CSS3, and early React. Collaborated with backend teams on Node.js and RESTful API integration, enhancing functionality and improving application performance.