DOCSIS SME

GCS Recruitment Specialists; Denver (CO); Sur place; USD 120 000 - 190 000; Plein temps

Résumé du poste

GCS Recruitment Specialists is seeking a hands-on technical leader to own DOCSIS lab validation, interoperability, and advanced troubleshooting across DOCSIS deployments.

You will collaborate with global R&D teams, CMTS vendors, and silicon providers to drive end-to-end validation for DOCSIS 3.0/3.1 and emerging 4.0, and guide provisioning workflows.

Qualifications

• Hands-on experience with DOCSIS 3.0/3.1; DOCSIS 4.0 knowledge preferred.
• Proven expertise in DOCSIS test labs, CMTS interoperability, and system-level validation.
• Strong troubleshooting and root-cause analysis of DOCSIS/network issues.
• Deep understanding of provisioning flows (DHCP/TFTP/TOD/TLVs) and PKI/security mechanisms.
• Proficiency with debugging/analysis tools.
• Solid networking fundamentals: IPv4/IPv6, NAT, DNS, DHCP, SNMP.
• Experience with CMTS platforms and chipset vendors (Broadcom, MaxLinear).

Responsabilités

• Lead DOCSIS lab setup, validation, and qualification activities, including interoperability testing with CMTS platforms.
• Design and execute comprehensive DOCSIS test plans covering performance, provisioning, stability, and feature validation.
• Drive root cause analysis of complex DOCSIS issues using logs, packet captures, and system-level debugging.
• Collaborate with CMTS vendors and SoC/chipset providers to resolve interoperability and performance issues.
• Analyze DOCSIS behaviors across PHY/MAC/IP and identify bottlenecks or failures.
• Guide and validate DOCSIS provisioning workflows: DHCP/TFTP/TOD, TLVs, security, certificates.
• Maintain and enhance lab infrastructure, automation, documentation, and internal knowledge base.
• Provide technical input on DOCSIS roadmap, standards evolution, and future feature development.

Connaissances

DOCSIS 3.x

Lab testing

CMTS interoperability

Root-cause analysis

Packet analysis

Linux debugging

Networking fundamentals

Chipset/vendor collaboration

Outils

Wireshark

tcpdump

gdb

strace

Description du poste

This is a hands-on technical leadership role focused on DOCSIS systems, CMTS interoperability, lab validation, and advanced troubleshooting across DOCSIS broadband deployments. The role emphasizes test lab ownership, root-cause analysis, and close collaboration with chipset vendors and customers to ensure high-performance and stable DOCSIS gateway solutions.

You will work closely with global R&D teams, CMTS vendors, and silicon providers to drive end-to-end DOCSIS validation, interoperability, and performance optimization for DOCSIS 3.0, 3.1, and emerging 4.0 technologies.

Key Responsibilities

• Lead DOCSIS lab setup, validation, and qualification activities, including interoperability testing with CMTS platforms.
• Design and execute comprehensive DOCSIS test plans covering performance, provisioning, stability, and feature validation.
• Drive root cause analysis of complex DOCSIS issues using logs, packet captures, and system-level debugging.
• Troubleshoot field and lab issues using:
  • Wireshark / tcpdump
  • Cable modem & gateway logs
  • SNMP and telemetry data
  • Linux debugging tools (gdb, strace, etc.)
• Collaborate with CMTS vendors and SoC/chipset providers (e.g., Broadcom, MaxLinear) to resolve interoperability and performance issues.
• Analyze DOCSIS behaviors across layers (PHY/MAC/IP) and identify bottlenecks or failures.
• Support customer deployments and field issue reproduction, providing deep technical insights and resolutions.
• Guide and validate DOCSIS provisioning workflows:
  • DHCP / TFTP / TOD
  • Config files (TLVs)
  • Security, certificates, and PKI handling
• Ensure robustness of firmware upgrade flows, secure boot, and DOCSIS security mechanisms.
• Maintain and enhance lab infrastructure, automation, documentation, and internal knowledge base.
• Provide technical input on DOCSIS roadmap, standards evolution, and future feature development.

Required Skills & Experience

• Strong hands-on experience with DOCSIS 3.0 / 3.1 (DOCSIS 4.0 knowledge highly preferred).
• Proven expertise in DOCSIS test labs, CMTS interoperability, and system-level validation.
• Strong experience in troubleshooting and root-cause analysis of DOCSIS/network issues.
• Deep understanding of:
  • DOCSIS provisioning flows (DHCP, TFTP, TOD, TLVs)
  • Certificates, PKI, and security mechanisms
• Proficiency with debugging and analysis tools.
• Solid networking fundamentals:
  • IPv4/IPv6, NAT, DNS, DHCP, HTTP/HTTPS, SNMP
• Experience working with CMTS platforms and chipset vendors (Broadcom, MaxLinear, etc.).
• Strong ability to analyze logs, identify patterns, and isolate root causes across system layers.
• Experience with embedded Linux environments (debugging focus; deep development not mandatory).

Ability to lead technical discussions, mentor engineers, and work with cross-functional/global teams.