Celene Chang, a biologist with limited programming experience, embarked on a self-study journey to transition into the field of Big Data. With the help of online resources such as MOOCs, YouTube tutorials, and coursework at Columbia's Institute for Data Science, she established skills in Python, SQL, and Git. She recently started working at Datadog, where she is gaining practical knowledge about Cloud computing, developer tools, and programming languages like Ruby and JavaScript. The company's supportive team has been instrumental in her growth, providing valuable feedback and guidance. Celene now encourages others to explore a career in tech, offering resources and support through the Datadog Careers page.