Aim to solve 150-200 problems with a 70/30 split between medium and hard difficulty. Focus heavily on arrays, strings, trees, graphs, and dynamic programming. Accenture frequently tests problems on sliding window, two pointers, and interval manipulation, so ensure you can recognize and solve these patterns quickly.

The most common mistake is jumping into code without first clarifying the problem and edge cases with the interviewer. Second is not verbalizing your thought process clearly. Always take 1-2 minutes to ask questions, state your approach, and think aloud before writing code, even if it's a brute-force solution first.

The Bar Raiser is a specialized behavioral interview with a senior leader trained to assess candidates against Accenture's 16 Leadership Principles. It's not purely technical. Prepare by writing 10-12 detailed stories using the STAR method that demonstrate these principles (e.g., Learn & Be Curious, Drive for Results). Be ready to discuss failures and what you learned from them in depth.

The typical timeline is 4-6 weeks. The initial application review can take 1-2 weeks. After the first round (usually a phone screen), you'll schedule the virtual onsite (4-5 interviews). Results from the onsite are usually communicated within 1-3 business days. Delays often occur due to hiring manager availability or role prioritization.

SDE-1 focuses almost exclusively on DSA and basic OOP. SDE-2 adds 1-2 system design questions (e.g., design TinyURL, a chat system) and expects cleaner, more optimized code with some discussion of trade-offs. SDE-3 requires advanced system design (scalability, databases, API design) and deeper behavioral examples showcasing project leadership and mentorship.

Candidates who stand out explicitly connect their project experiences to Accenture's Leadership Principles during behavioral rounds. Instead of just saying 'I worked on a team project,' they frame it as: 'I demonstrated 'Ownership' by taking responsibility for the database schema when our initial design failed, which resulted in...' This shows cultural fit and impact.

Yes, Accenture commonly uses HackerRank for its initial coding assessments and sometimes for virtual onsite coding rounds. You must be comfortable with the HackerRank editor (no auto-complete) and its input/output format. Practice past Accenture HackerRank questions found on sites like LeetCode and GeeksforGeeks, focusing on problem-solving within a 45-minute time limit.

System design is critical for SDE-2; expect it in at least one round. You need to design scalable systems for 1-5 million users, discussing components like load balancers, databases (SQL vs NoSQL), and caching. Prioritize the 'Grokking the System Design Interview' course and study real architectures from the 'System Design Primer' GitHub repo. Also, review Accenture's public case studies to understand their client-facing design approach.