Status : Applications Engineer at Oracle . 1.5 years of experience. Applied through referral
Date : Feb 2021
Location : Bangalore

Online Assessment
Don't remember the questions but they were quite easy and doable

After assessment , 3 rounds were scheduled after 2 weeks.

Round - 1 : DSA

• Given a string convert it in balanced string in minimum number of operations Balanced string is one which has equal frequency for each character .
• Definition of operation : Convert one character of string into any other character
• Defination of balanced string : Balanced string is string which has equal frequency for each character
• Eg : AAAB -> can be coverted to AABB in one operation
• I couldn't find anything equivalent on leetcode .

Behavioural questions :

• Tell about me a challenging work you did
• Tell me about me a time where you solved a problem . How you could have done it better?.
• Tell me about what are you currently working on recently and metrics used

Round - 2: DSA

• When does out of memory exception occur in java?
• How do you fine tune a GC ?
• How do you allocate threads and number to use ?
• Given a BST and range low and high . Return all nodes within that low and high .
• Stock buy - sell . maximum profit by doing any number of transactions

Round 3: DSA

• https://leetcode.com/problems/partition-array-into-two-arrays-to-minimize-sum-difference/description/
• Can you tell me about a time where you received a critical feedback ? . What was the outcome ? . How did you manage it ?
• Can you tell me about a time where you did something without consulting your manager ? .
• Can you tell me about a time where you worked under strict deadlines ? .

Round 4: Bar raiser round

• We have a gaming scoreboard .

• Design APIs/methods for provide score dashboard for a game.

• Feature Requirements:

  • #1 Fetch score/player details of current player by Name or Id.
  • #2 UpdateOrCreate score of player by Name or Id.
  • #3 Fetch player details with highest score
  • #4 Fetch leaderboard, dashboard in DES order (score).
  • #5 Delete the player

• Assumptions:

  • Names are unique (simplification)
  • Use Data-structures instead of DB

Behavorial:

• Can you tell me about a time where you did something outside your area of responsibility ?
• Can you tell me about a time where learned something new,a new tech stack?

Status: Got the offer a week after last round.