Network Packet Processing Engineer â Security Engine (OT/ICS Focus)
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Job Location:
Monthly Salary:
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Job Summary
HARMANs engineers and designers are creative purposeful and agile. As part of this team youll combine your technical expertise with innovative ideas to help drive cutting-edge solutions in the car enterprise and connected ecosystem. Every day you will push the boundaries of creative design and HARMAN is committed to providing you with the opportunities innovative technologies and resources to build a successful career.
A Career at HARMAN
As a technology leader that is rapidly on the move HARMAN is filled with people who are focused on making life better. Innovation inclusivity and teamwork are a part of our DNA. When you add that to the challenges we take on and solve together youll discover that at HARMAN you can grow make a difference and be proud of the work you do everyday.
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 (1040Gbps 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)
* PFRING
* AFXDP
* 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.
HARMAN is proud to be an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard torace 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.
Key Skills
- Network security
- Protocols
- ASA
- Tcp/IP
- Routers
- Windows
- Access Control
- Information Security
- Infrastructure
- Linux
- IOS
- Servers
- Troubleshoot
- Intrusion Detection
- Siem
About Company
HARMAN International is a global leader in connected car technology, lifestyle audio innovations, design and analytics, cloud services and IoT solutions.
