Technical Business Analyst
Network Segmentation
12-month contract
Up to $1100/day + Super
Parramatta | Hybrid working arrangement

We are seeking a highly experienced Senior Technical Business Analyst to join a major network segmentation and cyber security transformation program.

This is a genuinely technical, hands-on BA position. We are looking for a career Technical Business Analyst with deep network and security infrastructure experience who can work at a detailed level with Network and Security Architects and Engineers, while also engaging business and technical SMEs to identify application dependencies and translate these into exact network segmentation requirements.

Key responsibilities
Perform detailed discovery and analysis of existing network connectivity and application dependencies
Analyse raw network traffic information and translate findings into detailed connectivity matrices covering source/destination IPs, ports, protocols and required actions
Define detailed requirements and rules supporting network segmentation and micro-segmentation
Work closely with Network and Security Architects to challenge, validate and refine proposed technical solutions
Engage SMEs across diverse business, application, research,



facilities and OT environments to uncover detailed application and connectivity dependencies
Support Data Centre and DMZ modernisation, including firewall routing, OoB management networks, load balancers, proxy uplift and IP address rationalisation
Support workload micro-segmentation and the development of granular host-based isolation policies
Analyse requirements for campus network segmentation, including zoned network architectures, SD-WAN, VRFs, NAC and ACL hardening
Support SASE/SSE and Zero Trust initiatives across ZTNA, SWG, CASB and DLP
Contribute to network observability uplift, including NTA, DPI and SNI capabilities
Produce detailed technical requirements, process/traffic flows, traceability and supporting analysis throughout delivery

What's on offer
Initial 12-month contract
Up to $1100/day + Super.
Hybrid working model based in Parramatta.
Chance to contribute to a large-scale cyber transformation program with meaningful organisational impact.

If you are an experienced Technical Business Analyst with Network Segmentation experience looking for a long term contract assignment, please apply NOW and you will be contacted for a further discussion if your profile is deemed a suitable fit.

📌 Technical Business Analyst Cyber Security Parramatta (Australia)
🏢 Ethos BeathChapman
📍 Australia