Senior Software Engineer

L3Harris Technologies

. Manage the full Software Development Life Cycle (SDLC) .

Posted 11/12/2026full-timeFremantle • AustraliaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing the Software Development Life Cycle (SDLC) while leading software architecture and design activities. Proficient in modern software technologies, including embedded C++, .NET technologies, and DevSecOps practices, with a strong focus on quality assurance and customer collaboration.

Highest-signal resume keywords

Software Development Life Cycle (SDLC)Embedded C++ and C.NET Technologies (.NET 8+, C#, WPF/WinUI 3, T-SQL, PowerShell, Blazor)DevSecOps Toolchains (GitHub, GitLab, Azure DevOps)Australian Defence Clearance (Negative Vetting 1)

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Hard Skills

Software ArchitectureSoftware DesignTesting and ValidationTechnical Risk ManagementGit-based SCMDigital Signal ProcessingAcoustic Communication WaveformsExperimental Data ProcessingDebugging Field TrialsAlgorithm Improvement

Soft Skills

Customer LiaisonTeam CollaborationProblem Solving

Tools & Technologies

Visual StudioAtlassian SuiteAzure DevOps

Certifications & Qualifications

Chartered Engineer (Engineers Australia)

Industry Keywords

Embedded PlatformsMaritime EnvironmentsUnderwater AcousticsITAR Controlled Technology

Tech Stack

Tools & technologies

AzurePythonSDLCSQLWPFC++.NET

About the role

Key responsibilities & impact

Manage the full Software Development Life Cycle (SDLC)
Define and manage requirements
Lead software architecture and design activities
Implement software work packages
Execute testing to verify and validate software quality and appropriateness
Support software release and deployment into internal and remote production environments
Support and maintain software in internal and remote production environments
Liaise with customers to refine scope and solutions to meet requirements, cost, schedule, and quality
Work in small, lean delivery teams across the full lifecycle from requirements and architecture through design, implementation, testing, deployment, and production support
Travel occasionally to domestic, offshore, and overseas customer locations to provide engineering support

Requirements

What you’ll need

Tertiary qualifications in an Engineering, Computer Science, or other relevant Discipline
Suitable qualifications and experience to meet the requirements of Chartered Engineer (Engineers Australia)
7 years or more experience practicing in an Engineering position within the Software Engineering discipline (preferred)
Experience with modern software technologies including embedded/low-level C++ and C
Experience with .NET desktop technologies including .NET 8+, C#, WPF/WinUI 3, T-SQL, PowerShell, and Blazor
Python experience
Experience developing for embedded platforms
Must be an Australian Citizen
Ability to hold an Australian Defence Clearance to a NEGATIVE VETTING 1 security level
Meet the requirements for access to ITAR controlled technology and data
Experience in engineering development methodologies
Technical Risk Management approach
Experience with Git-based SCM
Experience with DevSecOps toolchains/pipelines, such as GitHub, GitLab, Atlassian suite, and Azure DevOps
Visual Studio experience
Working knowledge of maritime environments and underwater acoustics
Working knowledge of digital signal processing and digital communication fundamentals, including modulation, demodulation, and channel estimation
Experience designing or implementing acoustic or RF bandwidth-constrained communication waveforms
Experience processing experimental data, debugging field trials, and converting test findings into algorithm or software improvements

Benefits

Comp & perks

Reasonable accommodation for individuals with disabilities
Opportunity to work on advanced defence and commercial technologies across air, land, sea, space and cyber domains
Exposure to full lifecycle software delivery and DevSecOps toolchains