C++ Software Developer – Endpoint Security Windows

Bitdefender; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

Bitdefender is seeking a C++ Software Developer to join the Windows Endpoint Security team. You will design, develop, and maintain components that run on millions of endpoints, integrating multiple security technologies into a single product.

The role emphasizes Windows internals, performance, security, and collaboration across engineering teams. You will work closely with Windows APIs, debugging tools, and modern C++ standards to deliver reliable software.

Qualifications

• Strong knowledge of C++ and experience developing production software.
• Proficient with modern C++ standards and the C++ standard library.
• Solid understanding of object-oriented design, data structures, memory management, and multithreading.
• Experience with Windows API and Windows system programming concepts.
• Familiarity with Windows internals, debugging tools, and performance profiling.
• Ability to collaborate across multiple teams and communicate effectively.

Responsibilities

• Design, develop, maintain, and improve C++ components running on Windows.
• Integrate security technologies and components into the Endpoint Security product.
• Design and implement Windows services, processes, libraries, and supporting components.
• Work with Windows APIs and OS-level functionality.
• Investigate and resolve performance, memory, concurrency, and networking issues in production.
• Debug using Visual Studio, WinDbg, WPA, ETW, and other tools.
• Analyze crashes, hangs, memory issues, and performance regressions.
• Write clean, maintainable, testable code and perform code reviews.
• Collaborate with QA and product teams throughout the lifecycle.
• Continuous learning about Windows capabilities and security technologies.

Skills

C++ programming

Windows API

Multithreading

Performance optimization

Debugging

Security software

Windows OS concepts

Communication skills

Team collaboration

Visual Studio

Tools

WinDbg

ETW

Windows Performance Analyzer

Crash dumps analysis

Job description

Описание:

Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide. Guardian over millions of consumer, enterprise, and government environments, Bitdefender is one of the industry’s most trusted experts for eliminating threats, protecting privacy, digital identity and data, and enabling cyber resilience. With deep investments in research and development, Bitdefender Labs discovers hundreds of new threats each minute and validates billions of threat queries daily. The company has pioneered breakthrough innovations in antimalware, IoT security, behavioral analytics, and artificial intelligence and its technology is licensed by more than 180 of the world’s most recognized technology brands. Founded in 2001, Bitdefender has customers in 170+ countries with offices around the world. For more information, visit https://www.bitdefender.com We are looking for a C++ Software Developer to join Bitdefender's Endpoint Security Windows team. You will work on the Windows endpoint security product, developing and maintaining components that run on millions of endpoints and integrate multiple security technologies into a single product. The role involves both developing new functionality and working with an established, complex codebase where performance, reliability, security, and compatibility are essential. You will have the opportunity to work close to the Windows operating system, investigate complex real-world problems, and collaborate with multiple engineering teams responsible for different security technologies.

Задачи:

Design, develop, maintain, and improve C++ components running on Windows. Integrate security technologies and components developed by other Bitdefender teams into the Endpoint Security product. Design and implement Windows services, processes, libraries, and supporting components. Work with Windows APIs and operating-system-level functionality. Investigate and resolve complex issues involving performance, memory, concurrency, networking, operating system behavior, and interactions between product components. Debug problems using tools such as Visual Studio, WinDbg, Windows Performance Analyzer (WPA), ETW, and other Windows diagnostic tools. Analyze crashes, hangs, memory corruption, performance regressions, and other problems occurring in production environments. Design reliable solutions involving multithreading, synchronization and inter-process communication. Participate in technical and architectural discussions and propose improvements to existing components. Write clean, maintainable, testable, and efficient code. Perform code reviews and contribute to improving engineering practices within the team. Collaborate with QA, product management, and other engineering teams throughout the development lifecycle. Continuously learn about new Windows capabilities, security technologies, development tools, and programming languages.

Требования:

Strong knowledge of C++ and experience developing production software. Good knowledge of modern C++ and the C++ Standard Library. Good understanding of: object-oriented programming and software design; data structures and algorithms; memory management; multithreading; synchronization primitives; inter-process communication. Experience developing software for Microsoft Windows. Good knowledge of the Windows API (Win32) and Windows system programming concepts. Good understanding of operating-system concepts such as: processes and threads; virtual memory; files and I/O; services; synchronization; CPU and storage behavior. Strong debugging and troubleshooting skills. Ability to investigate complex problems methodically, including problems that cannot be easily reproduced locally. Basic understanding of computer networking and common network protocols. Good software architecture and design skills. Good written and verbal communication skills. Ability to collaborate effectively with engineers from different teams. Windows internals. WinDbg and crash dump analysis. ETW, Windows Performance Recorder and Windows Performance Analyzer. Windows kernel or driver development. Network programming and Windows networking APIs. Cybersecurity or endpoint security products. Windows Firewall / Windows Filtering Platform. TLS, certificates and cryptography. Software deployment, installation and update technologies. Performance profiling and optimization. Python or PowerShell scripting. Rust. Large-scale software products with long-lived codebases and strong backward-compatibility requirements.

Условия:

You will join a team working on technically challenging problems at the intersection of C++, Windows internals and cybersecurity. The role provides opportunities to work on both high-level product architecture and low-level technical problems, from designing new components to analyzing crashes, performance problems and operating-system interactions occurring on real customer machines. You will collaborate with experienced engineers across Bitdefender and contribute directly to the reliability, performance and security of the Endpoint Security product.