Job Description
Design, lead and secure mission-critical platforms for multiple clients across both Government & Private sectors. Mentor other engineers. Sydney CBD.
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Hybrid work (50% in the Sydney CBD office), autonomy and flexibility
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Shape solutions in an environment that rewards innovation and ideas
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Technical trainings & career growth opportunities
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Who you'll be working with
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At AC3, our purpose is to make technology real, and as leaders in secure multi-cloud solutions, we get to bring that purpose to life for our customers every day. We're an Australian-owned ICT Managed Services Provider with teams in Sydney, Melbourne, Brisbane, and Auckland, supporting more than 700 enterprise organisations and over 50% of the NSW State Government.
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What sets us apart is our culture - people here have real relationships that go beyond work, and maintaining our awesome culture, supportive spirit, and belief that everyone is heard and treated with respect, is a top priority at AC3.
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We're committed to a workplace that fosters open communication, flexible working arrangements, continuous learning, and providing support to get through life's changing seasons.
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We live by the AC3 way - Work Wise, Work Humble, and Work Honest.
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Who Are We Looking For?
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We're looking for a Senior Network & Security Engineer who will work closely with the Sales and Consulting teams to convert customer needs into functional solutions and design and build them.
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You'll be someone who can operate independently, hold credible technical conversations with senior stakeholders,



and translate complex customer requirements into practical infrastructure solutions. This role suits someone comfortable across on-prem, AWS and/or Azure and hybrid cloud environments, with the ability to shape low-level designs and collaborate with other teams to build the solution.
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AC3 is dedicated to growing the representation of women in technology, and women are warmly encouraged to apply.
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What You'll Do?
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Support the pre-sales
consultants/architects
by reviewing and improving Scope of Works documents (SOWs)
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Offer expertise and recommendations to enhance design & documentation..
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Provide technical expertise to implement comprehensive network & security solutions - planning, installation, configuration, and support of customer environments.
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Prepare and deliver relevant handover documentation for smooth transition into ongoing support
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Proactively identify and resolve delivery issues.
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Become a trusted advisor within key customer accounts.
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What We'd Love To See?
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10+ years of experience in Network & Security related roles
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Previous experience working in an MSP or consulting environment highly regarded
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Strong technical knowledge and experience across Cisco R&S;, SDWAN, Azure, AWS,



Palo Alto, Fortinet, Wifi, etc.
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Experience producing Low Level designs and delivering complex Network & Security solutions
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Exceptional oral and written communication skills, with proven document/report writing ability
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Previous experience mentoring other team members a plus
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Relevant certifications such as CCNA, CCNP, CCIE, Palo Alto or F5 highly regarded
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Australian citizenship, eligible for security clearance
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Even if you don't check every box, your passion and curiosity matter. If this role excites you, we would love to see your application.
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What will you gain?
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Company benefits including discounted lifestyle services such as health insurance, salary packaging, hybrid work, and half-day Fridays once a month
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A culture built on respect, where you can flag conduct that feels off and rely on a fair, confidential process that prioritises your safety and wellbeing.
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Join supportive colleagues in groups such as Rise Up: a networking group for women in tech to learn in a positive and secure environment and Speak Up Advisors: a group who help maintain a safe space for raising concerns.
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Access to career development opportunities, that helps some 30 AC3ers progress year on year.
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Flexible Hybrid work options and real work life integration
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Convenient Sydney CBD location with modern offices
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We'd love for you to experience the AC3 way for yourself!
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Women, non-binary and gender diverse people are encouraged to apply.
#J-*****-Ljbffr

📌 Senior Network Security Engineer (New South Wales)
🏢 AC3
📍 New South Wales