HCL Tech

Role: C++ Developer

College: Not Specified

Interview Date: July 15, 2025

Interview Type: Not Specified

Result: Not Specified

Difficulty: Medium

Rounds: 3 rounds

Topics Asked: Past project details, C++ concepts (polymorphism, overloading), Challenges faced/issues resolved in projects, Linked list programming, Bit manipulations, String questions, Smart pointers, Dangling pointer, Memory leak, Package and role-related discussion.

Experience:

A candidate with 3 years of experience as a C++ developer attended an HCL interview for a C++ developer role, which involved three rounds.

Round 1: Telephonic Basic Round
Questions were asked about:

• Past project details.
• How C++ concepts like polymorphism and overloading were used in projects.
• The biggest challenges faced or issues resolved in the current project, with a brief discussion.

Round 2: Technical Round
This round focused on C++ topics, including:

• Linked list programming questions: Reverse a linked list, Delete a node in a single linked list when the head node is given.
• Bit manipulations based program.
• String question: To print all subsequences.
• Smart pointers and code to explain them.
• Dangling pointer and memory leak questions.

Round 3: HR Round
The discussion in the HR round was mostly related to the salary package and role-related aspects.