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Hi, I'm David Ko, a Senior Software Engineer with 7 years of experience creating innovative solutions that enhance user engagement and streamline processes. I'm passionate about building efficient, scalable applications that support millions of users, and I enjoy collaborating with cross-functional teams to solve complex challenges. My expertise is in Python, Typescript, and Node.js, and I love leveraging technology to continuously improve user experiences. I take pride in mentoring junior developers and fostering a culture of technical excellence. Whether it's coding, planning, or sharing best practices, I enjoy contributing to a team's success and delivering impactful results that make a real difference.…Hi, I'm David Ko, a Senior Software Engineer with 7 years of experience creating innovative solutions that enhance user engagement and streamline processes. I'm passionate about building efficient, scalable applications that support millions of users, and I enjoy collaborating with cross-functional teams to solve complex challenges. My expertise is in Python, Typescript, and Node.js, and I love leveraging technology to continuously improve user experiences. I take pride in mentoring junior developers and fostering a culture of technical excellence. Whether it's coding, planning, or sharing best practices, I enjoy contributing to a team's success and delivering impactful results that make a real difference.

David Ko

Web Developer, Programmer, Developer, +2

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Hi, I'm David Ko, a Senior Software Engineer with 7 years of experience creating innovative solutions that enhance user engagement and streamline processes. I'm passionate about building efficient, scalable applications that support millions of users, and I enjoy collaborating with cross-functional teams to solve complex challenges. My expertise is in Python, Typescript, and Node.js, and I love leveraging technology to continuously improve user experiences. I take pride in mentoring junior developers and fostering a culture of technical excellence. Whether it's coding, planning, or sharing best practices, I enjoy contributing to a team's success and delivering impactful results that make a real difference.…Hi, I'm David Ko, a Senior Software Engineer with 7 years of experience creating innovative solutions that enhance user engagement and streamline processes. I'm passionate about building efficient, scalable applications that support millions of users, and I enjoy collaborating with cross-functional teams to solve complex challenges. My expertise is in Python, Typescript, and Node.js, and I love leveraging technology to continuously improve user experiences. I take pride in mentoring junior developers and fostering a culture of technical excellence. Whether it's coding, planning, or sharing best practices, I enjoy contributing to a team's success and delivering impactful results that make a real difference.

Available to hire

Hi, I’m David Ko, a Senior Software Engineer with 7 years of experience creating innovative solutions that enhance user engagement and streamline processes. I’m passionate about building efficient, scalable applications that support millions of users, and I enjoy collaborating with cross-functional teams to solve complex challenges. My expertise is in Python, Typescript, and Node.js, and I love leveraging technology to continuously improve user experiences.

I take pride in mentoring junior developers and fostering a culture of technical excellence. Whether it’s coding, planning, or sharing best practices, I enjoy contributing to a team’s success and delivering impactful results that make a real difference.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Language

English

Fluent

Work Experience

Senior Engineer at Spotify

August 1, 2020 - Present

Spearheaded the development of features for the Messaging Platform, enabling multi-channel messaging for over 600M monthly active users, using Python Django for backend services. Delivered product initiatives including Transactional Messages, Builder Dashboard, and Review Portal from end to end. Optimized system performance using Apache Kafka, Redis, and Google Cloud, improving API response time by over 50%. Improved code quality for UI component library using React, Typescript, and Material UI. Collaborated cross-functionally to enhance user engagement and conducted code reviews and mentoring for junior developers. Participated in regular tech share meetings to promote best practices and process improvements.

Software Engineer at PPG

March 31, 2020 - July 10, 2025

Designed and developed intuitive RESTful APIs with Python Django REST framework for a consumer-facing quoting application, enhancing user interaction and functionality. Engineered modular, reusable UI components using React to speed up feature rollouts. Enhanced performance and maintainability through best practices and modern web technologies to ensure scalability and reliability. Collaborated with cross-functional teams to align technical solutions with business objectives.

Teaching Fellow at Fullstack Academy of Code

February 28, 2018 - July 10, 2025

Taught web development concepts to students and contributed features to the course curriculum app. Earned a Coding Bootcamp Certificate during this time.

Clinical Data Coordinator at Weill Cornell Medicine

July 31, 2017 - July 10, 2025

Utilized Python programming skills to conduct and assist in medical research studies. Published research articles in notable journals such as The American Journal of Surgical Pathology and Springer.