Staff Network Security Engineer
Design and deploy network flow monitoring solution to support DDoS detection and traffic engineering services. Architect of Twitter's Zero Trust Network Access strategy. Work across teams and organisations as an infrastructure and security shepherd to provide guidance about secure development. Write and implement ad-hoc tools, integrating them into a CI pipeline to automatically update the tools as new versions are released. Develop a service to build a Source of Truth for network Access Control Lists.
Key Accomplishments:
- Deployed a new network flow analysis solution which increased network visibility and analysis
- Deployed a Zero Trust remote access solution which reduced the demand for a legacy VPN solution by nearly 25%
- Reduced tool deployment speeds by 90% by integrating tool development into a CI pipeline
Senior Network Security Engineer
Plan and deploy network security design across four sites for third-party vendors in trust and safety department using SSLVPN solution. Enable automation teams to dynamically update hosts by revitalising internal stateless filters and security enforcement points. Devise visualisation tool to take XML output from Juniper routers, output HTML, and display to non-technical users. Implement mitigations to address security issues in PCI-scoped networks during a PCI Audit.
Key Accomplishments:
- Reduced operational response time from 1 week to 1 day by modifying and improving configuration templates used across Twitter's network infrastructure.
- Developed new remote access solutions and steered global expansion of trust and safety services by 10X.
- Augmented network capacity to cloud providers from 1Gbps to 100Gbps while maintaining strong security posture.
- Decreased SSL VPN issues by 50% by deploying Passthrough Proxy and Anycast services.