Uber SDE-2 Frontend Interview Experience (Bangalore/Hyderabad) 🚀 [3+ YOE]

Overview

The Uber Frontend SDE-2 interview process assesses candidates on a broad range of skills beyond typical frontend development. The evaluation includes data structures and algorithms, low-level design with React, high-level system design, and behavioral assessments. The process is designed to identify engineers who can handle complex problems, build scalable systems, and collaborate effectively.

Interview Rounds

Round 1: DSA (Graphs-Based)

This round focused on graph-based data structures and algorithms. The candidate was presented with a medium-hard graph problem, requiring both conceptual understanding and implementation proficiency. The candidate explained their thought process, discussed trade-offs, and implemented a solution. A follow-up variation required optimizing part of the initial solution.

Round 2: DSA (Matrix Problem)

This round assessed array and matrix manipulation skills. The candidate faced a medium-difficulty problem with multiple edge cases. A subtle hint from the interviewer helped the candidate overcome a roadblock and complete the task. The focus was on problem-solving fundamentals, including 2D arrays, backtracking, and recursion.

Round 3: LLD + Machine Coding (React Setup)

This round involved a practical machine coding exercise in a React sandbox environment. The task involved implementing a UI challenge with tree-like data transformations and rendering. The candidate was required to implement reusable components, manage state efficiently, and ensure performance on large datasets. A follow-up enhancement involved optimizing re-renders and refining component structure. The discussion covered JavaScript, React patterns, hooks, and context management.

Round 4: Hiring Manager Discussion

This round was a conversation-based assessment of the candidate's projects, impact, and ownership. The manager evaluated technical maturity and collaboration skills by discussing previous roles, large-scale frontend systems, and trade-offs in performance, accessibility, and API design. Behavioral scenarios focused on resolving production bugs, coordinating with backend teams, and balancing delivery with quality.

Round 5: HLD (Component and System Design)

This round involved architecting a real-world web feature using an online whiteboard. The discussion covered component decomposition, data flows, and scalability. Specific topics included component communication and data hierarchy, state management decisions (Redux vs Context vs Query), API strategy and batching approaches, and caching, pagination, and graceful failure handling. The round emphasized articulation of design decisions.

Key Takeaways

• A strong foundation in data structures and algorithms is crucial, even for frontend roles.
• Mastery of component-driven development with React is essential.
• The ability to translate vague problems into structured solutions is highly valued.
• Clear and iterative communication is critical throughout the interview process.
• Preparation should extend beyond coding to include architectural reasoning and system design principles.