TechSeries (techseries.dev) is the publisher of Tech Interview Pro, a paid technical-interview-prep course focused on the algorithm / data-structure / system-design material that gates engineering roles at large tech companies.
The CourseFlix listing carries Tech Interview Pro — a structured preparation track covering the question categories, problem-solving frameworks, and behavioural-interview patterns that show up in FAANG-style interviews.
Material is paid and aimed at engineers preparing for technical interviews at large tech companies. For broader career-prep content, see CourseFlix's Career & Interviews and Preparing for an interview category pages.