Salesforce interview questions

Showing 61–77 of 77 results

• Implement an LFU cacheHard

  This question evaluates understanding of data structures and cache eviction policies, specifically frequency tracking for LFU caches and LRU tie-breaking among equal-frequency items.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Implement an LFU cache with O(1) operationsMedium

  This problem tests your ability to maintain multiple layers of linked data structures to achieve O(1) time complexity for both access and eviction in an LFU (Least Frequently Used) cache.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Implement common data-structure and JS tasksMedium

  This problem tests your ability to design a time-aware data structure, manipulate linked structures, and demonstrate mastery over JavaScript's asynchronous execution model and functional programming patterns.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Maximal Square and Longest Increasing SubsequenceMedium

  This problem tests proficiency with 2D dynamic programming for geometric pattern recognition and 1D dynamic programming for sequence optimization.

  SalesforceSoftware EngineerCoding & AlgorithmsTechnical Screen
• Maximize events attended given date rangesMedium

  This problem tests your ability to solve a classic greedy interval scheduling variation by using sorting and a priority queue to maximize overlapping resource utilization.

  SalesforceSoftware EngineerCoding & AlgorithmsTechnical Screen
• Minimize operations to reduce integer to zeroMedium

  This problem tests your ability to optimize mathematical transformations on an integer using greedy strategies or dynamic programming by analyzing the parity and binary representation of the input.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Minimize steps to reduce integerMedium

  This question evaluates algorithm design skills and proficiency with integer operations and decision-making under parity constraints, testing competencies such as bitwise reasoning, greedy and dynamic-programming intuition, and complexity analysis.

  SalesforceSoftware EngineerCoding & AlgorithmsTechnical Screen
• Minimum Sum of Weekly Maximum CostsMedium

  Partition an array of daily costs into k contiguous weeks to minimize the sum of each week's maximum cost using dynamic programming.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Multi-tenant resource allocator: entity model, lifecycle state machine, optimistic lockingMedium

  Low-level design question for a senior backend role: model a multi-tenant resource allocation module where customers request and release resources. It tests compact class design, an explicit resource lifecycle state machine, optimistic locking under concurrent requests, and tenant isolation enforced in code.

  SalesforceSoftware EngineerSoftware Engineering FundamentalsOther
• Present and Defend Recent Research on AI AgentsMedium

  This question assesses the candidate's ability to communicate complex research, isolate their specific technical contributions, and synthesize academic concepts with practical AI-agent architectural challenges.

  SalesforceSoftware EngineerMachine LearningTechnical Screen
• Remove duplicates and find constrained longest subsequenceEasy

  This problem tests your ability to manipulate linked structures to remove duplicates and your algorithmic efficiency in finding the longest string that satisfies two distinct containment constraints.

  SalesforceSoftware EngineerCoding & AlgorithmsOnline Assessment
• Remove duplicates from a singly linked listMedium

  This question evaluates understanding of singly linked list data structures and in-place node manipulation to remove repeated values while preserving relative order, testing competencies in pointer management and duplicate-detection.

  SalesforceSoftware EngineerCoding & AlgorithmsHR Screen
• Solve Two OA Coding ProblemsMedium

  These two problems evaluate in-place array manipulation and run-length encoding implementation for character sequences, and algorithmic reasoning about integer operations and minimal-operation sequences, falling squarely within the Coding & Algorithms domain.

  SalesforceSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve sliding window, heap, DP, in-place tasksHard

  This problem tests your ability to combine sliding window techniques with hash map frequency tracking to identify all starting indices of valid anagrams in a target string.

  SalesforceSoftware EngineerCoding & AlgorithmsTechnical Screen
• Track Top-K Frequent Elements from an Unbounded StreamMedium

  Tests the ability to architect a distributed streaming system for continuous top-k frequent element tracking over unbounded data streams, evaluating trade-offs between exact counts and probabilistic heavy-hitter algorithms under scale, state management, and fault-tolerance constraints.

  SalesforceMember of Technical StaffSystem DesignOnsite
• Validate a Generalized Word AbbreviationMedium

  Validate whether a lowercase word matches a generalized abbreviation whose positive numbers skip characters. Enforce exact letter matching, full consumption, multi-digit counts, and the prohibition on leading zeroes.

  SalesforceSoftware EngineerCoding & AlgorithmsOnsite
• Walk Through the Architecture of the Project You Work on NowMedium

  A design-round prompt asking you to walk through the architecture of the project you currently work on: its purpose, components, request and data flows, technology choices, scale and failure handling, and your own part in it. It assesses clarity, ownership and depth under probing.

  SalesforceSoftware EngineerSystem DesignOnsite