{"id":4137271,"url":"https://alion.io/job/l3harris-technologies-senior-software-engineer","title":"Senior Software Engineer","company":{"id":177017,"name":"L3Harris Technologies","domain":"l3harris.com","url":"https://alion.io/company/l3harris-technologies","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":{"grade":"A","score":99,"open_postings":61,"ghost_share":0,"stale_share":0.033,"repost_share":0.033,"time_to_fill_p50_days":22,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fremantle, Australia"],"countries":["AU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"C++","optional":false},{"name":"Azure","optional":true},{"name":"Azure DevOps","optional":true},{"name":"Blazor","optional":true},{"name":"C#","optional":true},{"name":"Git","optional":true},{"name":"GitHub","optional":true},{"name":"GitLab","optional":true},{"name":"Linux","optional":true},{"name":"MS SQL","optional":true},{"name":"PowerShell","optional":true},{"name":"Python","optional":true},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2026-11-12T04:06:10Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T04:06:10Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About us\nL3Harris Technologies is an agile global aerospace and defence technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. We provide advanced defence and commercial technologies across the air, land, sea, space and cyber domains.\nL3Harris Australia (operating as Integrated Mission Systems Australia) has provided advanced technology solutions to the Australian Defence Force and commercial customers for over 25 years. As a government partner of choice, L3Harris brings speed, innovation and flawless execution together with our commitment to make the world safer and more secure.\nOur values of Integrity, Excellence and Respect are at the core of everything we do and inspire our team members around the globe.\nAbout the role\nWe are seeking a versatile Senior Software Engineer with experience across modern technology stacks, primarily .NET and C/C++ (Windows and Yocto Linux) for embedded and desktop platforms. The role is part of small lean delivery teams involving full lifecycle delivery-from requirements and architecture through design, implementation, testing, deployment, and ongoing production support. Knowledge in maritime and underwater technologies is a bonus.\nThe ideal candidate brings strong skills in task planning, technical risk management, and modern development practices, with hands-on experience in Git-based workflows and DevSecOps toolchains. Good skills in customer engagement and management are a must.\nEssential Functions:\nFull Software Development Life Cycle (SDLC) management:Requirements definition and management.\nLead software architecture and design activities.\nImplement the scope of software work packages.\nExecute testing to verify and validate the quality and appropriateness of the software.\nSupport the release and deployment of software into production environments (internal and remote).\nSupport and maintain software in production environments (internal and remote).\n\nLiaising with customers to refine scope and solution to meet requirements, cost, schedule and quality.\nOccasional travel to customer locations (domestic, offshore, and overseas) to provide engineering support.\nQualifications:\nTertiary qualifications in an Engineering, Computer Science, or other relevant Discipline\nSuitable qualifications and experience to meet the requirements of Chartered Engineer (Engineers Australia)\n7 years or more experience practicing in an Engineering position within the Software Engineering discipline (preferred).\nExperience with modern software technologies including:\nEmbedded/low-level (e.g. C++, C)\n.NET desktop (e.g. .NET 8+, C#, WPF/WinUI 3, T-SQL, PowerShell, Blazor)\nPython\nExperience in developing for embedded platforms.\nMust be an Australian Citizen.\nAbility to hold an Australian Defence Clearance to a NEGATIVE VETTING 1 security level.\nMeet the requirements for access to ITAR controlled technology and data.\nPreferred Additional Skills:\nExperience in engineering development methodologies\nHave a good Technical Risk Management approach\nExperience with modern software tooling such as:\nGit based SCM\nDevSecOps toolchains/pipelines (e.g. GitHub, GitLab, Atlassian suite, Azure DevOps, etc)\nVisual Studio\nWorking knowledge of maritime environment and underwater acoustics.\nWorking knowledge of digital signal processing and digital communication fundamentals: modulation, demodulation, and channel estimation.\nExperience designing or implementing acoustic or RF bandwidth-constrained communication waveforms.\nExperience processing experimental data, debugging field trials, and turning test findings into algorithm or software improvements.","description_format":"text","description_chars":3647,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["C4ISR","Military Satellites","Military Communication","Electronic Warfare"],"lifecycle":[{"event":"open","at":"2026-11-12T04:06:10Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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