How to become a C++ developer: tips and resume
The C++ developer market remains one of the most stable and highest-paying in IT. C++ is used in gamedev, fintech, embedded systems, high-load services, and even the space industry. However, competition among juniors is growing, and simply knowing the syntax is no longer enough. In this article, we will look at how to properly prepare for employment, create a resume, pass an interview, and get an offer.
Step 1: Define your niche in C++
Before sending out resumes, it is important to understand which area you want to work in. C++ is not one language, but a whole ecosystem. Here are the main directions:
- GameDev (Unreal Engine, Unity with plugins) — requires knowledge of graphics, physics, optimization.
- FinTech (high-frequency trading) — speed, multithreading, low-level memory management are important.
- Embedded / IoT — memory constraints, working with hardware, bare-metal programming.
- Backend / Highload — server applications, working with networks, databases.
- Desktop / GUI (Qt, wxWidgets) — user interfaces, cross-platform development.
Choose one direction and delve into it. Universal "know a little bit of everything" candidates lose to specialists. For example, if you want to get into gamedev, show a project on Unreal Engine:
// Example of a simple Actor in Unreal Engine 5#include "MyActor.h"
AMyActor::AMyActor(){ PrimaryActorTick.bCanEverTick = true;}
void AMyActor::BeginPlay(){ Super::BeginPlay(); UE_LOG(LogTemp, Warning, TEXT("Hello from C++ Actor!"));}
void AMyActor::Tick(float DeltaTime){ Super::Tick(DeltaTime); // Movement logic}Such code in a portfolio will tell an employer more than abstract "know OOP".
Step 2: Create a resume that gets noticed
A C++ developer's resume should be concise but informative. Use the following structure:
- Contact information — phone, email, link to GitHub/LinkedIn.
- Key skills — list specific technologies: C++17/20, STL, Boost, Qt, CMake, Git, Linux, multithreading (std::thread, std::async), knowledge of algorithms (Big O).
- Work experience — even if there is no commercial experience, include educational projects, open-source contributions, or freelance orders.
- Code examples — links to repositories with a README describing the task and solution.
Here is an example of a project description for a resume:
Project: "HTTP-server in C++ from scratch"- Implemented parsing of HTTP/1.1 requests.- Used epoll for asynchronous connection handling.- Support for static files and CGI scripts.- Stack: C++20, CMake, gtest, valgrind (no leaks).Avoid generic phrases like "responsible, communicative". The employer wants to see that you can solve problems. Show this with code.
Step 3: Prepare for the technical interview
A C++ developer interview usually consists of three stages: screening (HR), algorithmic section (LeetCode-style), and an in-depth C++ interview.
What is most often asked:
- The difference between
new/deleteandmalloc/free. - Virtual functions and vtable.
- RAII and smart pointers (
std::unique_ptr,std::shared_ptr). - Move semantics and perfect forwarding.
- Multithreading: mutexes, condition_variable, atomic operations.
Example of a typical interview question:
// Question: What will the program output?#include <iostream>#include <vector>
int