C/C++ Developer, Elastic WAF Real Time Team

At Thales, we know technology has the ability to make our world more secure, sustainable, and inclusive – and that it’s all driven by human intelligence.

Because it takes human intelligence to build and power the systems and solutions that people depend on every day. So we stay curious and make space for diverse points of view. We share what we know and we challenge what’s possible.

We’re driving progress in some of the world’s most important industries - from the bottom of the oceans to the depths of space and cyberspace - and from manufacturing to engineering, we work together to build a future we can all trust.

Imperva, a Thales company, is a globally recognized cybersecurity leader, dedicated to securing data and applications across diverse environments. Our cutting-edge solutions empower organizations to safeguard their most critical assets, ensuring robust protection against emerging threats.

Imperva, a Thales company, is a globally recognized cybersecurity leader dedicated to securing data and applications across diverse environments. Our cutting‑edge solutions help organizations protect their most critical assets against emerging threats.

Thales believes that technology becomes truly powerful when driven by human intelligence. We value curiosity, diverse perspectives, and bold thinking—and we are proud to be ranked among Israel’s Top 50 High‑Tech Companies to Work For in 2025 (Dun & Bradstreet) and offer a flexible hybrid work model from our Rehovot office.

We are looking for a bright and passionate Experienced C Developer to join our Elastic WAF Real-Time team, located in our office in Rehovot.

The team is responsible for developing the core features and capabilities of Imperva’s WAF product, delivered both as SaaS and on-premises solutions. As a developer, you will be part of a team building a high-performance, real-time security system, leading technology initiatives, and projects end-to-end while maintaining high-quality standards.

You will be involved in high-impact projects and gain deep expertise in network traffic inspection, real-time request processing, and large-scale production systems.

Key Responsibilities:

• Design, implement, and optimize high-performance, low-latency WAF components.

• Work on real-time traffic inspection and request processing pipelines.

• Own your code — from design to production, including debugging and handling live issues.

• Analyze and improve performance, memory usage, and system scalability.

• Research and integrate new technologies into the product.

Requirements:

• B.Sc. in Computer Science or equivalent.

• At least 3 years of experience as a C software developer.

• Strong experience with Linux systems programming and multithreaded environments.

• Solid understanding of TCP/IP, HTTP, TLS, and Web Application Security.

• Experience working with high-throughput / low-latency systems.

• Familiarity with network programming, packet processing, or proxy-based architectures.

• Experience with debugging, profiling, and performance tuning tools.

• Experience with Python and Bash scripting.

• A team player with strong collaboration, communication, and self-learning skills.

• Eagerness to learn and grow, and motivation to join a fast-paced team building an elastic, high-performance WAF product.

Nice to have:

• Experience with Docker, Kubernetes, and microservices architectures — advantage.

Thales, champions inclusion and we believe diversity strengthens the fabric of our culture. We are an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, colour, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.