JavaScript Algorithms and Data Structures at freeCodeCamp
Link: https://www.freecodecamp.org/certification/juancarloscangiano/javascript-algorithms-and-data-structures
Responsive Web Design in Free Code Camp
Link: https://www.freecodecamp.org/certification/juancarloscangiano/responsive-web-design
Scrum Master course in Udemy.
Link: https://www.udemy.com/certificate/UC-TXZSGGJU/
Angular 7 course in MUG (Microsoft User Group).