Network Packet Processing Engineer – Security Engine

Location:

Pune - Maharashtra, India - Rajiv Ganhi Infotec Park

Job Family:

Engineering

Worker Type Reference:

Regular - Permanent

Pay Rate Type:

Salary

Career Level:

T4(A)

Job ID:

R

About the Role

We are developing a high-performance Security Engine that inspects, analyzes, and processes real-time OT/ICS network traffic at scale.
You will design and optimize the packet capture, parsing, and traffic distribution pipeline that powers our threat detection and protocol analysis stack (including Zeek and Suricata).

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Key Responsibilities

• Design and implement high-speed packet capture and processing pipelines.
• Integrate with Zeek/Suricata and develop custom protocol parsers for OT/ICS traffic.
• Optimize for performance (multi-threading, NUMA-aware processing, zero-copy I/O).
• Implement flow distribution strategies to scale traffic across multiple analysis engines.
• Benchmark and profile packet processing performance, identify and resolve bottlenecks.
• Work closely with the Threat Detection and Protocol Engineering teams to extend protocol coverage.
• Ensure lossless packet capture at high bandwidths (10–40Gbps+ environments).

Required Skills & Experience

• Strong proficiency in C/C++ (memory management, multi-threading, lock-free data structures).
• Hands-on experience with high-performance packet I/O frameworks, such as:
• DPDK (preferred)
• PF\_RING
• AF\_XDP
• libpcap (for integration purposes)
• Deep understanding of network protocols (Ethernet, IPv4/IPv6, TCP/UDP) and packet processing concepts.
• Familiarity with OT/ICS protocols (Modbus, DNP3, IEC 104, PROFINET, EtherNet/IP, OPC UA) or willingness to learn.
• Experience with Linux kernel networking internals and performance tuning.
• Knowledge of NIC hardware offloading features (RSS, SR-IOV, flow steering).
• Strong profiling and benchmarking skills for network-intensive applications.

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Preferred Qualifications

• Experience integrating with IDS/IPS platforms (Zeek, Suricata, Snort).
• Exposure to traffic replay tools (tcpreplay, MoonGen).
• Experience with parallel and distributed packet processing architectures.
• Familiarity with cloud-native environments and containerized deployments (Docker/K8s).
• Previous work in OT/ICS network security or industrial networking.

You Belong Here

HARMAN is committed to making every employee feel welcomed, valued, and empowered. No matter what role you play, we encourage you to share your ideas, voice your distinct perspective, and bring your whole self with you – all within a support-minded culture that celebrates what makes each of us unique. We also recognize that learning is a lifelong pursuit and want you to flourish. We proudly offer added opportunities for training, development, and continuing education, further empowering you to live the career you want.

About HARMAN: Where Innovation Unleashes Next-Level Technology

Ever since the 1920s, we've been amplifying the sense of sound. Today, that legacy endures, with integrated technology platforms that make the world smarter, safer, and more connected.

Across automotive, lifestyle, and digital transformation solutions, we create innovative technologies that turn ordinary moments into extraordinary experiences. Our renowned automotive and lifestyle solutions can be found everywhere, from the music we play in our cars and homes to venues that feature today's most sought-after performers, while our digital transformation solutions serve humanity by addressing the world's ever-evolving needs and demands. Marketing our award-winning portfolio under 16 iconic brands, such as JBL, Mark Levinson, and Revel, we set ourselves apart by exceeding the highest engineering and design standards for our customers, our partners and each other.

If you're ready to innovate and do work that makes a lasting impact, join our talent community today

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HARMAN is proud to be an Equal Opportunity employer. HARMAN strives to hire the best qualified candidates and is committed to building a workforce representative of the diverse marketplaces and communities of our global colleagues and customers. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.HARMAN attracts, hires, and develops employees based on merit, qualifications and job-related )