Stay Dangerously Sharp as a Software Engineer
AI-powered drills for algorithms, system design, languages, and frameworks. Build real engineering skill through deliberate practice, not passive tutorials.
Tutorials Won't Make You Senior
Watching videos and reading blog posts feels productive, but senior-level engineering comes from solving hard problems under real constraints.
Interview Prep Is a Grind
Scattered problem lists, stale study guides, and random grind sessions. None of it adapts to where you actually need reps.
Frameworks Keep Shifting
Languages, libraries, and system patterns shift every quarter. Without deliberate practice, skills decay before you notice.
Drills Across the Entire Stack
Algorithms, data structures, system design, languages, and frameworks. Hundreds of hands-on drills covering the skills you actually use on the job.
Write Code That Actually Runs
Solve problems in a real editor with live execution, structural analysis, and instant feedback. No trivia. No multiple choice. Just code.
System Design, One Tradeoff at a Time
Drill the decisions that separate senior engineers from the rest: caching, consistency, queues, and sharding. Build intuition through repetition.
Spaced Repetition for Engineers
Immersh tracks what you know, what is slipping, and schedules your next drill before the skill decays. Your practice plan adapts every session.
1M+
Drills Completed
50K+
Learners
15+
Skill Domains
4.8
Average Rating