Step Forward With Us

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

About the role 

L3Harris in Eight Mile Plains is The Centre of Excellence for Electronic Warfare and is home to world-leading design, manufacture and integration expertise and the sustainment of high-reliability electronic warfare components. Our highly skilled workforce design and develop Australia’s sovereign defence capabilities such as the next-generation space, airborne and cyber capabilities for the Australian warfighter.

Join a team of talented professionals with world-class technical expertise who thrive in a collaborative, agile environment. We’re seeking a Senior Embedded Software Engineer to architect and develop advanced embedded software applications and contribute across the full software development lifecycle.

The ideal candidate will bring a strong foundation in engineering principles, theories, and techniques—along with a genuine passion for emerging technologies. Our team is mission-driven, innovative, and dedicated to delivering excellence through agile software engineering.

What the role will involve

The responsibilities of your role will include the following:

• Lead complex software architecture across multiple systems.
• Manage development schedules and report to stakeholders.
• Develop secure, robust C++ code for defence applications.
• Contribute across all SDLC phases—from design to verification.
• Present technical designs to both technical and non-technical audiences.
• Collaborate with cross-functional engineering teams and management.
• Mentor junior engineers in development and debugging best practices.
• Maintain internal and customer documentation.
• Provide engineering support to manufacturing and demonstrations.
• Drive continuous improvement and innovation.

What you’ll bring

To succeed in this role, you’ll need the following experience and skills:

• Degree in Software, Electronics, Electrical Engineering, or related field
• Active NV2 Security Clearance
• 7+ years’ experience in a similar role
• Proven experience architecting complex embedded software with structured verification practices
• Skilled in developing C++ software for microcontrollers (bare metal or RTOS) with interfaces such as I2C, SPI, UART, and CAN
• Ability to work independently and collaboratively within multi disciplinary teams, following established development processes
• Strong computer literacy and excellent written and verbal communication skills

Desirable Skills

• Experience with Xilinx Zynq SoCs
• Firmware development using VHDL and/or Verilog for FPGAs
• Knowledge of software developed to meet protocol standards or mission critical requirements
• Ability to read hardware schematics, identify software related design issues, and recommend improvements
• Experience developing custom peripheral interfaces and complex algorithms on programmable logic
• Proficiency in Python or other scripting languages for hardware emulation or software verification
• Experience building high level software applications (web or desktop)

About L3Harris Australia

L3Harris Australia excels as a prime defence contractor, providing integrated tech solutions for over four decades. Specialising in technology that connects and shapes operations spanning multiple domains: space, air, land, sea, cyber and first responders. Today, we employ over 500 professionals in all major cities who understand the region’s unique requirements.

A few of our employee benefits are:

• Flexible working hours and patterns depending on location
• Discounted private health insurance
• Company supported professional development programs
• Retail Reward programs
• An additional week of leave per annum plus the option to buy or sell up to 2 weeks additional annual leave. 
• Salary continuance insurance (SCI pays 75% of your base salary and bonus for up to 2 years) 

Important to know

Due to the nature of our work many our roles require an Australian citizenship and will require the successful candidate to successfully apply and hold an Australian Defence Security Clearance and/or be assessed to work with ITAR information.  Please answer the pre-screening questions upon applying for this assessment.

As an equal opportunities employer, L3Harris is committed to the equal treatment of all current and prospective employees and does not condone discrimination on the basis of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership.