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Infosys is a global leader in next-generation digital services and consulting. We enable clients in more than 56 countries to navigate their digital transformation. With over four decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower businesses with agile digital at scale to deliver unprecedented levels of performance and customer satisfaction. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ecosystem.
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Role Description: Are you passionate about architecting next‑generation mobile and transport network solutions that shape the future of telecommunications? We are seeking a highly skilled Core Network Architect to lead the design and evolution of 4G/5G Core, IMS, IP/MPLS, and transport networks.
In this role, you will define end‑to‑end network architectures, lead transformation roadmaps, and ensure seamless integration of network functions with OSS/BSS, orchestration layers, and cloud platforms.
Location: Sydney
Salary: AUD 150,742 – 171,215 Annual Gross
Please Note: - The above salary range is only indicative and maybe subject to suitable enhancements, based on internal company processes
Flexible working arrangements (hybrid, reviewed case-by-case basis). Feel free to connect with your recruiter to learn more about how this works in practice.
Roles and Responsibilities:

• Architect E2E solutions across 4G/5G Core, IMS, and Transport networks.
• Develop HLD and LLD documents for packet core and signaling systems.
• Lead network transformation involving cloudification and automation.
• Define strategies for network modernization, scaling, and optimization.
• Ensure integration of core networks with OSS/BSS ecosystems.

• Deep understanding of 4G/5G Core, IMS, EPC.
• Strong IP/MPLS, DWDM, and SDN experience.
• Experience in network migration and performance engineering.
• Knowledge of network security and resilience design.

• Experience with cloud-native core (NFV, CNF).
• Knowledge of network automation tools and programmability.

• Excellent customer-facing skills
• Excellent written and verbal communication skills
• Strong attention to detail and outstanding analytical and problem-solving skills.

• Income Protection Insurance
• Paid Parental and Volunteer leaves
• Employee Assistance Program (EAP)
• Flexible working arrangements (hybrid, reviewed case-by-case basis)
• Health Insurance Discount and Well-being Program
• Access to Fitness and Gym Memberships
• Salary packaging and novated leasing