Sr Software Engineer - High Performance Networking Job at Zentera Systems, San Jose, CA

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  • Zentera Systems
  • San Jose, CA

Job Description

Help us push the limits of secure, high-performance networking. You’ll own the design and implementation of the cross-platform network agent that powers our Zero Trust security overlay.

What you’ll do

  • Architect & build data-plane performance
  • Evaluate kernel-bypass and userspace techniques and choose the right mix per platform.
  • Prototype, benchmark, and iterate.
  • Embed security and observability
  • Build policy enforcement logic, rate limiting, and identity hooks directly into the agent.
  • Instrument rich flow and health telemetry and deliver to upstream platforms.
  • Ship production-ready code
  • Write production-quality C/C++.
  • Produce clear design docs, performance reports, unit/integration tests, and release checklists.
  • Optimize for every environment
  • Tune for bare-metal, hypervisors, containers, and Kubernetes.
  • Anticipate failure modes and develop auto-recovery and graceful degradation paths.
  • Collaborate across functions
  • Partner with product and QA to translate requirements into engineering tasks.

What you bring

  • Deep cross-platform chops - 3+ years each on Windows (NDIS/WFP)  and Linux (kernel/eBPF).
  • Expert knowledge of  TCP/IP, routing, flow control, and packet-processing pipelines .
  • Strong C/C++ skills, with a solid grasp of  multi-threading, NUMA, lock-free data structures, and cache coherency .
  • Proven track record profiling and tuning  throughput & latency .
  • Comfort with  cryptographic libraries (OpenSSL/BoringSSL) and TLS hand-shake optimization .
  • Bonus points for: Rust/Go, QUIC, smart-NIC programming (P4/eBPF offload), or cloud-native CNI plugin experience.

You’ll thrive here if you

  • Relish squeezing every microsecond out of hot paths and can explain  why the last 1 µs matters.
  • Communicate crisply—whether in design docs, PR reviews, or hallway white-boarding.
  • Believe “done” means shipping  fast, secure, and observable code.

Qualifications

  • BS or MS in Computer Science, Electrical Engineering, or equivalent proven experience.
  • Demonstrated ability to deliver complex networking features to production on schedule.

Job Tags

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