Marco Song is a backend engineer based in Seoul with nine years of software experience and 7+ years focused on building and operating production services. He has led backend teams and migrations (notably from Express.js to Nest.js) to enable scalable architectures with caching, WebSockets, queues and batch jobs, and has driven measurable cost savings by deploying in-house AI models and optimizing cloud footprints. Marco has shipped payment, subscription, and crypto token systems, improved developer workflows with Swagger/Redoc, and established monitoring pipelines for faster incident response. Comfortable managing remote teams and cross-border collaboration, he combines pragmatic engineering with product-minded impact—evident in migrations that supported 50k-user moves and automated workflows that reclaimed significant developer time.
9 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Seoul
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.