C++
C++ is one of the most established and powerful programming languages used to create software that needs to run fast and efficiently. It's commonly used for making computer games, complex business applications, operating systems, and programs that control hardware. Think of it as a professional-grade tool that lets developers build high-performance software. While newer languages might be easier to learn, C++ remains crucial because it gives developers more direct control over the computer's resources and can make programs run faster. You might see it mentioned alongside terms like "object-oriented programming" or "systems programming."
Examples in Resumes
Developed high-performance trading application using C++ and C++11
Created video game engine components with C++
Optimized existing C++ codebase resulting in 40% performance improvement
Typical job title: "C++ Developers"
Also try searching for:
Where to Find C++ Developers
Example Interview Questions
Senior Level Questions
Q: How would you improve performance in a C++ application?
Expected Answer: A strong answer should cover memory management techniques, optimization strategies, and understanding of how to use C++ features efficiently. They should mention practical examples from their experience and discuss measuring performance improvements.
Q: How do you ensure code quality in large C++ projects?
Expected Answer: Look for answers about code review processes, testing strategies, coding standards, and experience with large-scale project management. They should discuss specific tools and methodologies they've used successfully.
Mid Level Questions
Q: What's the difference between stack and heap memory in C++?
Expected Answer: Should be able to explain memory management concepts in simple terms, with practical examples of when to use each type of memory allocation, and common pitfalls to avoid.
Q: Explain how you would debug a C++ program that's running slowly.
Expected Answer: Should demonstrate knowledge of debugging tools and techniques, ability to identify common performance issues, and methodical approach to problem-solving.
Junior Level Questions
Q: What are the basic concepts of object-oriented programming in C++?
Expected Answer: Should be able to explain classes, objects, inheritance, and encapsulation in simple terms with basic examples.
Q: How do you handle errors in C++ programs?
Expected Answer: Should understand basic error handling concepts, try-catch blocks, and when to use them. Basic understanding of debugging processes is important.
Experience Level Indicators
Junior (0-2 years)
- Basic program structure and syntax
- Simple data structures and algorithms
- Basic debugging skills
- Understanding of object-oriented concepts
Mid (2-5 years)
- Advanced memory management
- Performance optimization
- Multi-threading basics
- Complex data structures
Senior (5+ years)
- System architecture design
- Advanced optimization techniques
- Team leadership
- Complex problem-solving
Red Flags to Watch For
- No understanding of memory management
- Lack of debugging experience
- No knowledge of modern C++ standards
- Poor understanding of performance optimization
- No experience with large codebases
