Network Fabric & Security Infrastructure Engineer
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Job summary
The network fabric & security infrastructure engineer is responsible for designing, configuring, and maintaining the multi-tier network fabric and cryptographic access control infrastructure of the AfWS compute platform. This person enforces VLAN isolation boundaries, provisions tenant mTLS certificates, configures packet filtering rules.
Min Qualification:
Degree
Experience Level:
Mid level
Experience Length:
3 years
Language Requirement:
English
Working Hours:
Full Time - Rotating Schedule
Applicant Location:
Lagos, Nigeria
Job descriptions & requirements
Responsibilities:
- Implement and maintain three-tier VLAN isolation architecture like VLAN 100 (tenant compute), VLAN 200 (management), and VLAN 300 (sovereign data vault — air-gapped)
- Operate the private Certificate Authority (CA) infrastructure
- Generating, signing, and distributing X.509 client certificates per tenant
- Configure and maintain mTLS validation on all inbound xterm.js SSH terminal connections
- Write and maintain iptables/nftables packet filtering rules blocking cross-slot scanning and lateral movement
- Maintain staff access revocation infrastructure — propagating session invalidation within 60 seconds of a revocation event
- Monitor network infrastructure for anomalous traffic and respond to security incidents within defined SLAs.
Requirements:
- A minimum of 3 years of experience.
- A minimum of a degree in a related field.
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