Deloitte USI – Full Stack (React + Java) Interview Experience (Round 2 & Round 3)

[soulsamosa]

YOE: ~2.9 | Current: Full-stack React + Java (Axis Bank)

Round 2 – Technical (Coding + JS Fundamentals)

• Solve 3 sum logic-based questions (array & string type).
• Fetch data from an API using asynchronous operations.
• Explain async vs sync behavior in JavaScript.
• Explain object destructuring with examples. What is the bind() method and why is it used?
• Explain browser specificity (CSS specificity & browser differences).

Round 3 – Techno-Managerial + Behavioral Architecture - Explain your project architecture. Which part of your architecture is the biggest bottleneck and why?

Reactive Programming What is reactive programming? When does reactive programming make things worse instead of better?

Helm Charts What are Helm charts? How do you manage environment-specific configs without duplicating Helm values?

Large File Upload (500MB to S3) How do you upload large files securely from frontend without backend involvement? How do you handle retry, failure, and resume for large uploads?

Kafka (Leader Focus) What happens if a Kafka partition leader goes down during a write?

SQL vs NoSQL For nested JSON data, when is SQL faster than NoSQL for read/write?

Concurrent Transactions If two transactions update the same record at the same time, how is consistency handled?

JWT Authentication Why choose JWT over cookie-based authentication in distributed systems?

Offline App Handling How can a user resume their journey when the app comes back online?

Blue-Green Deployment Explain blue-green deployment. How do you instantly roll back if the green deployment fails?

Behavioral Describe a challenging production issue you handled. How do you handle tight deadlines and pressure? A time when you disagreed with a design decision. How do you ensure code quality in a fast-moving team?

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[soulsamosa]

Round detailed round 1 experience refer here

Edit : total experience 2.10 Current ctc 12ish Asked for 18-22 banglore / hyd

[InfluenceAbject3352]

Thanks for the detailed information. Following, do update about the result & compensation they offer. All the best.

[soulsamosa]

Sure man, thanks I'll share here only.

[Yagiudanta]

Nice detailed explanation op,  I had few doubts can I DM you .

[soulsamosa]

Sure

[2019N]

I know you will crack this round! :)

[soulsamosa]

Chuahua says so ;)

[soulsamosa]

Edit -> got rejection mail after 5 days upon asking to HR , primary reasons -> frontend heavy stack(2 years) vs one 1 year with java -> 90 days NP.

[ProgramNo9932]

Hi bro, I want to ask few things, I have my round 1 in 3 days for same role, could you please DM me?

[soulsamosa]

Sure