Sergiy Onenko

Sergiy Onenko is an accomplished Senior Software Engineer with extensive experience across various companies, including Cityblock Health, Toptal, and Newfire Global Partners. Currently, Sergiy contributes to Cityblock Health and FastCTO, where innovation and architectural enhancements are key focus areas. Previous roles include significant architectural leadership at Toptal and Newfire Global Partners, where Sergiy designed complex applications and successfully guided their development. A co-founder of Pubium, Sergiy was instrumental in the creation of a complex application, with a strong foundation in web and mobile development skills demonstrated at reputable organizations like Samsung Electronics and IDMC. Sergiy holds a Master's degree in Banking and Financial Support Services from VMURL Ukraine and a Bachelor's degree in Economics from KPEK NAU.