Software eBPF/C/Rust Engineer (DDoS)

As a Software eBPF/C/Rust Engineer (DDoS) at Gcore, your primary responsibilities will include designing, developing, and maintaining XDP programs for high-speed packet filtering and processing using C. You will also implement and optimize Rust code for companion applications, collaborate closely with network engineers and security experts, and conduct performance testing to ensure system efficiency and stability.

To qualify for the Software eBPF/C/Rust Engineer (DDoS) role at Gcore, candidates should have proven experience in developing network applications or system programming. Solid knowledge of C programming and familiarity with network protocols, packet processing, and DDoS protection mechanisms is essential. A strong understanding of Linux-based development and kernel programming is also required, with additional considerations for concurrent programming knowledge and performance optimization techniques.

In the Software eBPF/C/Rust Engineer (DDoS) position at Gcore, proficiency in C programming is essential, as you will be designing XDP programs. Additionally, experience or familiarity with Rust is valuable for enhancing companion applications, making it beneficial for candidates to possess skills in both languages.

Yes! Gcore places a strong emphasis on professional growth for Software eBPF/C/Rust Engineers. The company supports continuous learning through participation in code reviews, open-source project contributions, and research on the latest advancements in network security and programming. With a diverse working environment, team members can grow their skills while tackling real-world challenges.

When you join Gcore as a Software eBPF/C/Rust Engineer (DDoS), you can expect a competitive salary along with flexible working hours and options for remote, hybrid, or office work. Additional benefits include private medical insurance for you and your family, extra vacation days, sick leave, and various allowances that support your professional journey and personal well-being.

eBPF, or extended Berkeley Packet Filter, is a powerful technology that allows you to run sandboxed programs in the Linux kernel, enabling high-performance data processing without modifying kernel code. In network security, eBPF can be utilized for real-time packet filtering, traffic management, and detecting malicious behavior, all of which are crucial for roles like the Software eBPF/C/Rust Engineer at Gcore.

Developing high-speed packet filtering applications presents challenges like minimizing latency, ensuring efficient memory usage, and debugging complex interactions with network protocols. Successfully addressing these issues requires deep knowledge of system programming and network principles, along with strong performance profiling skills.

Optimizing Rust code for performance in network applications can involve techniques such as leveraging zero-cost abstractions, using appropriate data structures, and performing thorough benchmarking. Focus on memory management and concurrency to minimize overhead and maximize efficiency, specifically in high-throughput environments typical in DDoS protection scenarios.

In my previous projects, I have utilized C for low-level programming tasks while employing Rust for higher-level application logic. This dual approach allowed me to take advantage of Rust's safety features while maintaining the performance of C for networking tasks, leading to reliable and efficient solutions, especially in areas like DDoS defense mechanisms.

Key considerations for performance testing network applications include identifying baseline metrics, simulating real-world traffic patterns, and ensuring that testing environments mirror production conditions. Additionally, being vigilant about resource usage, potential bottlenecks, and overall scalability will ensure a robust application response under varying loads.

To stay current with the latest trends in network security and technology, I regularly read industry publications, participate in online forums, and attend relevant conferences. Engaging with the developer community through open-source contributions and collaboration with peers is also vital for continuous learning and innovation.

I have actively contributed to projects by submitting code enhancements and bug fixes to repositories focused on networking performance. For example, I collaborated with a team on an eBPF-based tool, introducing optimizations that reduced processing time and improved packet filtering efficiency, demonstrating my commitment to both personal and community growth.

My preferred debugging tools for complex network applications include gdb, strace, and various profiling tools like perf and valgrind. Using these tools helps me identify memory leaks, performance bottlenecks, and other intricate issues that can arise within networking code, ensuring the reliability of applications.

One particularly challenging problem I encountered involved optimizing packet processing to decrease latency while handling DDoS traffic. I resolved this by implementing eBPF-based filters that allowed more efficient data handling, reducing bottlenecks caused by certain protocols, leading to improved response times.

Essential soft skills for a Software eBPF/C/Rust Engineer include strong communication skills for articulating complex concepts, collaboration skills for working within cross-functional teams, and problem-solving abilities for addressing intricate technical challenges. Adaptability and a willingness to learn are also critical in a fast-paced environment like Gcore.