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Communications Engineer

Calexi
Canberra ACT

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Job Details

Permanent | Full-time
$120,000 - $140,000 a year

Qualifications

Electrical engineering
Electrical experience
Network protocols
Telecommunication
Security
Communications

Full Job Description

Key Details:

Job Title: Communications Engineer

Job Type: Full Time

Location: Australian Capital Territory

Security Clearance: Minimum NV2 (active)

Overview:

Calexi is seeking Communications Engineers to support Defence tactical, strategic, and secure communications environments. You will design, integrate, and sustain resilient communications architectures across complex, distributed, and contested environments.

This role operates across radio, satellite, network, and secure communications domains.

Key Tasks and Responsibilities:

Technical Delivery:

Design and integrate communications systems (RF, IP, SATCOM, tactical networks)
Conduct link budget analysis and performance modelling
Support network architecture design and optimisation
Perform communications system testing and validation
Troubleshoot complex network and RF performance issues
Support secure communications configuration and integration

Defence Environment:

Work within classified communications environments
Support secure communications compliance frameworks
Participate in system acceptance testing and field trials
Contribute to capability enhancement and upgrade activities

Compliance & Governance:

Align with Defence communications security requirements
Maintain secure configuration documentation
Support accreditation and security assurance processes

Skills and Abilities:

Technical Proficiency:

RF fundamentals and signal propagation
Tactical and enterprise communications systems
Secure communications principles
Network protocols and routing technologies
Understands DDIL and its application in complex environments

Operational Resilience:

Ability to operate in mission-critical environments
Strong diagnostic capability under time pressure

Specific Experience Requirements:

Degree in Communications, Telecommunications, or Electrical Engineering
Experience within Defence communications environments
Experience with secure or classified systems
Active NV2 clearance (minimum)

Company Overview

We are values-driven and purpose-led. We care deeply about what we do and who we do it with. We hire people who want their work to mean something—people with grit, curiosity and the courage to challenge the status quo. People who lean into complexity, speak with conviction and never settle for good enough. At Calexi, we believe in doing work that matters, for clients who demand the best, with a team that backs each other to deliver.

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