About Us: Renaissance Info Systems is a technology and digital recruitment agency, connecting contract and permanent professionals with clients across Asia-Pacific. We aim to differentiate ourselves through our level of responsiveness, and our understanding that comes from being an IT recruitment agency from the IT Industry. Our recruiters balance sophisticated and simple inter-personal techniques to assure a strong candidate network.

Know More: http://www.reninfo.com.au

Role- Microsegmentation Technical Expert

Location: Sydney, NSW

Employment Type: 6-Month Contract

About the Role

We are looking for an experienced Microsegmentation Technical Expert to support a major cybersecurity and network security transformation program in Sydney.

The role will focus on the design, Proof of Concept (POC), implementation, and optimisation of microsegmentation solutions within a large-scale, highly complex network and cloud environment.

This position requires a strong combination of cybersecurity and networking expertise. The successful candidate will have hands-on microsegmentation or Zero Trust experience together with solid knowledge of IP routing, switching, firewalls, MPLS, BGP, OSPF/IS-IS, SDN, cloud, and virtualisation technologies.

Key Responsibilities

Architecture & Design

- Support the Technical Lead with the microsegmentation POC and target-state solution design.
- Design microsegmentation strategies aligned with Zero Trust and secure-by-design principles.
- Develop segmentation policies across applications, workloads, and environments.




- Produce high-level and low-level designs (HLD/LLD).
- Define trust boundaries, security zones, traffic flows, and segmentation requirements.
- Ensure segmentation designs integrate effectively with existing routing, switching, firewall, MPLS, cloud, and network architecture.

Implementation & Deployment
- Implement microsegmentation solutions using technologies such as Cisco Macro/Microsegmentation, Illumio, ColorTokens, or equivalent platforms.
- Configure security policies based on least-privilege principles.
- Integrate microsegmentation platforms with firewalls, routers, switches, SIEM, identity platforms, and other security technologies.
- Troubleshoot connectivity, routing, forwarding, policy conflicts, and enforcement issues.

Security & Zero Trust
- Support the implementation of Zero Trust Architecture.
- Align solutions with recognised security frameworks, including NIST 800-207, ISO 27001, and CIS Critical Security Controls.
- Support risk assessments, threat modelling, compliance, and audit-readiness activities.
- Continuously refine segmentation policies to reduce attack surface and lateral movement risks.

Stakeholder Engagement
- Work closely with cybersecurity, network engineering, cloud/platform,



infrastructure, and application teams.
- Provide technical guidance on microsegmentation and Zero Trust principles.
- Engage with technology vendors and support technical escalations.
- Maintain architecture diagrams, security policies, operational procedures, and technical documentation.

Essential Skills & Experience
- 5–10 years' experience in network and/or security engineering with microsegmentation, workload protection, or Zero Trust implementations.
- Robust hands-on experience with IP routing and switching in large, complex environments.
- Strong knowledge of firewalls, security policy/rule design, and zone-based security.
- Experience with MPLS and service-provider networking, including technologies such as:
- BGP
- OSPF / IS-IS
- MPLS L2/L3 VPNs
- Traffic engineering
- Hands-on exposure to microsegmentation technologies such as Cisco, Illumio, ColorTokens, or equivalent solutions.
- Strong understanding of TCP/IP, DNS, HTTP, firewalls, SDN, and network security.
- Experience with virtualisation and container technologies such as OpenShift, VMware, Kubernetes, and Docker.
- Knowledge of identity-based segmentation and Zero Trust security models.
- Familiarity with SIEM, EDR, NDR, and security analytics platforms.
- Strong troubleshooting, analytical, communication, and stakeholder-management skills

Regards,

Reshu Seth

Recruitment Consultant

Renaissance InfoSystem

M: +61 478 487 026

E: [email protected]

W: http://www.reninfo.com.au

📌 Microsegmentation Technical Expert (Sydney)
🏢 Renaissance InfoSystems
📍 Sydney