Job Description
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Technical Business Analyst
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Network Segmentation
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12-month contract
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Up to $****/day + Super
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Parramatta | Hybrid working arrangement
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We are seeking a highly experienced
Senior Technical Business Analyst
to join a major network segmentation and cyber security transformation program.n
nThis 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.n
Key responsibilities
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Perform detailed discovery and analysis of existing network connectivity and application dependencies
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Analyse raw network traffic information and translate findings into detailed connectivity matrices covering source/destination IPs, ports, protocols and required actions
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Define detailed requirements and rules supporting network segmentation and micro-segmentation
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Work closely with Network and Security Architects to challenge, validate and refine proposed technical solutions
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Engage SMEs across diverse business, application, research,



facilities and OT environments to uncover detailed application and connectivity dependencies
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Support Data Centre and DMZ modernisation, including firewall routing, OoB management networks, load balancers, proxy uplift and IP address rationalisation
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Support workload micro-segmentation and the development of granular host-based isolation policies
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Analyse requirements for campus network segmentation, including zoned network architectures, SD-WAN, VRFs, NAC and ACL hardening
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Support SASE/SSE and Zero Trust initiatives across ZTNA, SWG, CASB and DLP
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Contribute to network observability uplift, including NTA, DPI and SNI capabilities
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Produce detailed technical requirements, process/traffic flows, traceability and supporting analysis throughout delivery
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What's on offer
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Initial 12-month contract
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Up to $****/day + Super.
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Hybrid working model based in Parramatta.
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Opportunity to contribute to a large-scale cyber transformation program with meaningful organisational impact.
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nIf 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 (Sydney)
🏢 Ethos Beath Chapman - Australia
📍 Sydney