Network Designer

RMSI; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

RMSI is seeking an experienced Network Designer to translate customer and internal requirements into end-to-end, buildable, cost-effective designs across IP/MPLS, Transmission, Fibre, and Radio domains.

You will produce high-quality design documentation, act as the technical point of contact throughout the order lifecycle, and collaborate closely with Planning, Provisioning, Build, and Project teams to ensure successful delivery of network services.

Qualifications

• Bachelor’s degree in Telecommunications, Electronics, Computer Science, or related engineering field.
• 5–8+ years of hands-on experience in network design within a telecom or service provider environment.
• Strong design judgment and ability to mentor junior designers.
• Experience designing across IP/MPLS, Transmission, Fibre, and Radio domains.
• Excellent documentation and stakeholder communication.

Responsibilities

• Receive orders from Planning; analyse requirements, scope, and feasibility before design.
• Produce end-to-end network designs that are buildable, cost-effective, and standards-compliant.
• Prepare and issue design packs (HLD, LLD, schematics, BOM, configuration templates) to Provisioning, CAD, and Field teams within SLAs.
• Validate network inventory, capacity, and route availability; raise augmentation requests.
• Make design trade-offs on cost, resilience, lead time, and infrastructure reuse; document rationale.
• Ensure all designs meet engineering standards, customer SLA obligations, and diversity/resilience requirements.
• Conduct peer reviews of designs and present designs for approval.
• Serve as the technical contact for orders throughout their lifecycle; respond to queries from Provisioning, Build, CAD, and Project teams.
• Investigate and resolve design-related issues during build or activation; issue design amendments as needed.
• Maintain accurate as-designed and as-built records in inventory and design systems.
• Contribute to continuous improvement by identifying recurring issues and updating templates/guidelines.
• Mentor junior designers and share knowledge on new technologies, vendor platforms, and best practices.
• Comply with HSE policies and procedures at all times.
• Contribute to process improvement initiatives and suggest enhancements to workflows and best practices.
• Undertake any other duties as requested by line manager or business needs.

Skills

Cisco platforms

Juniper platforms

Nokia/Huawei platforms

IOS/IOS-XE/IOS-XR

IP/MPLS technologies

DWDM/OTN/SDH

Fibre network design

Radio network design

Voice transport design

Netcracker

MapBlaster

VMR

Design Investigator

Spatial Web

Education

Bachelor’s degree in Telecommunications, Electronics, Computer Science, or related engineering field

Tools

Netcracker

MapBlaster

VMR

Design Investigator

Spatial Web

Job description

We are seeking an experienced Network Designer to join our Network Design team. In this role, you will translate customer and internal requirements into end-to-end, buildable, cost-effective, and standards-compliant network designs across IP/MPLS, Transmission, Fibre, and Radio domains.

You will produce high-quality design documentation, act as the technical point of contact throughout the order lifecycle, and collaborate closely with Planning, Provisioning, Build, and Project teams to ensure successful delivery of network services.

This role requires strong technical expertise across multiple network domains, excellent design judgment, and the ability to mentor junior designers.

Responsibilities:

• Receive customer and internal orders from the Planning team, analyse requirements, scope, and feasibility before commencing design.
• Produce end-to-end network designs that deliver buildable, cost-effective, and standards-compliant solutions.
• Prepare and issue comprehensive design packs (HLD, LLD, schematics, bill of materials, and configuration templates) to Provisioning, CAD, and Field teams within agreed SLAs.
• Validate network inventory, capacity, and route availability; raise augmentation requests where required.
• Make informed design trade-off decisions on cost, resilience, lead time, and infrastructure reuse, documenting rationale clearly.
• Ensure all designs meet engineering standards, customer SLA obligations, and diversity/resilience requirements.
• Conduct peer reviews of designs and present own designs in design review forums for approval.
• Serve as the technical point of contact for orders throughout their lifecycle, responding to queries from Provisioning, Build, CAD, and Project Management teams.
• Investigate and resolve design-related issues during build or activation; issue design amendments as needed.
• Maintain accurate as-designed and as-built records in inventory and design systems
• Contribute to continuous improvement by identifying recurring issues, proposing standard design patterns, and updating templates and guidelines
• Mentor junior designers and share knowledge on new technologies, vendor platforms, and best practices.
• Comply with workplace Health, Safety, and Environment (HSE) policies and procedures at all times
• Actively contribute to process improvement initiatives and suggest enhancements to workflows and best practices
• Undertake any other duties and activities as requested by the line manager or as required by business needs
• Education: Bachelor’s degree in Telecommunications, Electronics, Computer Science, or related engineering field
• Experience: 5–8+ years of hands‑on experience in network design within a telecom or service provider environment

Technical Skills:

• Hands‑on design experience with major vendor platforms (Cisco, Juniper, Nokia, or Huawei)
• Strong expertise in Cisco Routing & Switching (IOS, IOS-XE, IOS-XR, Catalyst, Nexus, ASR/NCS)
• Solid knowledge of IP/MPLS technologies including OSPF, IS-IS, BGP, LDP, RSVP-TE, L2VPN/L3VPN, and QoS
• Transmission design experience across DWDM, OTN, and/or SDH (wavelength planning, link budgets, protection)
• Fibre network design including fibre selection, ODF/FDH allocation, and optical loss budgeting
• Diverse network design with true A/B path diversity across cables, joints, and conduits
• Radio network design knowledge (microwave links, 4G/5G transport, fronthaul & backhaul)
• Experience with voice transport design (TDM, SIP, VoIP, IMS/VoLTE)
• Working knowledge of engineering systems (Netcracker, MapBlaster, VMR, Design Investigator, Spatial Web)

Soft Skills:

• Strong analytical and decision‑making skills
• Excellent communication and stakeholder management abilities
• Ability to mentor and share knowledge effectively

Other Requirements:

• Experience working in onshore‑offshore delivery models