Systems Engineer

Leidos; Adelaide; On-site; AUD 120,000 - 180,000; Full time

Job summary

Leidos Australia is seeking a Systems Engineer to shape complex system capabilities in an Agile delivery environment, working with engineers, architects, cyber specialists and stakeholders.

You will lead requirements, MBSE, and models using Rhapsody, DOORS and Jazz, and ensure ISM controls and cyber security are embedded in designs. This role requires Australian Citizenship and NV-1 security clearance; you will contribute to mission-critical government projects.

Qualifications

• Experience developing and documenting functional specifications at system and subsystem level.
• Experience working within a Model-Based Systems Engineering (MBSE) environment.
• Capability in system and subsystem modelling, including behavioural and activity diagrams.
• Hands-on experience with systems modelling tools, ideally IBM Rhapsody.
• Experience using requirements management and traceability tools such as DOORS and Jazz.
• Ability to facilitate stakeholder workshops and lead requirements elicitation activities, including use case development.
• Experience working within Agile delivery programs, including adaptive planning, user story development and story point estimation.
• Knowledge of cyber security principles, security hardening practices and ISM controls, with the ability to derive and manage cyber-related requirements.
• Experience using collaboration and delivery tools such as Jira and Confluence.

Responsibilities

• Lead the development and management of system and subsystem requirements, producing high-quality functional specifications and maintaining traceability using tools such as DOORS and Jazz.
• Apply MBSE practices to analyse, model and define system behaviours, architectures and interfaces, leveraging Rhapsody to develop activity, behavioural and other system models.
• Facilitate workshops and engagement sessions with customers and stakeholders to capture use cases, validate requirements and align technical solutions with program objectives.
• Contribute to Agile delivery activities including user story development, sprint planning, estimation and continuous improvement, while ensuring cyber security and ISM control requirements are incorporated into system designs.

Skills

MBSE

Requirements elicitation

Agile delivery

Traceability

Stakeholder facilitation

Tools

DOORS

Jazz

IBM Rhapsody

Jira

Confluence

Job description

Description

Job Description

About Leidos Australia

At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life.

Backed by a global organisation of more than 40,000 people, our Australian team of around 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter.

Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work.

This includes:

• Flex Your Way - Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours.

• Wellbeing That Matters - Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing.

• Learn Without Limits - Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities.

• Work That Makes an Impact - Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities.

• Build Your Future - Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way.

• And Much More - These are just a few of the ways we invest in our people and help them thrive.

About the Team

You’ll join a team where people work with integrity, inclusion, innovation, agility, collaboration and commitment. In practice, that means sharing ownership, solving complex problems together and staying connected to the customer context, the purpose behind the work and how each role contributes to meaningful outcomes.

Mission Software Systems (MSS) brings together expertise across intelligence, software, and cloud to deliver end-to-end capability supporting the full intelligence lifecycle, from planning through to dissemination and feedback. The team fosters a culture of innovation, leveraging modern engineering practices and shared infrastructure to rapidly build, test, and deploy software solutions across a range of environments, including cloud. MSS also plays a key role in advancing technology modernisation within Government, delivering scalable and adaptable solutions for complex enterprise challenges.

The Opportunity

As a Systems Engineer, you will play a key role in shaping and defining complex system capabilities within a collaborative, Agile delivery environment. Working closely with engineers, architects, cyber specialists and program stakeholders, you will help translate operational needs into robust system designs and requirements that support successful project outcomes.

In this role, you will:

• Lead the development and management of system and subsystem requirements, producing high-quality functional specifications and maintaining traceability using tools such as DOORS and Jazz.

• Apply Model-Based Systems Engineering (MBSE) practices to analyse, model and define system behaviours, architectures and interfaces, leveraging tools such as Rhapsody to develop activity, behavioural and other system models.

• Facilitate workshops and engagement sessions with customers and stakeholders to capture use cases, validate requirements and align technical solutions with program objectives.

• Contribute to Agile delivery activities including user story development, sprint planning, estimation and continuous improvement, while ensuring cyber security and ISM control requirements are incorporated into system designs.

About You

You are an experienced Systems Engineer who enjoys working across the full systems engineering lifecycle and collaborating with diverse technical and non-technical stakeholders. You bring a structured approach to requirements development and system modelling, combined with the ability to translate complex problems into practical, scalable solutions.

Essential:

• Experience developing and documenting functional specifications at system and subsystem level.

• Experience working within a Model-Based Systems Engineering (MBSE) environment.

• Capability in system and subsystem modelling, including behavioural and activity diagrams.

• Hands-on experience with systems modelling tools, ideally IBM Rhapsody.

• Experience using requirements management and traceability tools such as DOORS and Jazz.

• Ability to facilitate stakeholder workshops and lead requirements elicitation activities, including use case development.

• Experience working within Agile delivery programs, including adaptive planning, user story development and story point estimation.

• Knowledge of cyber security principles, security hardening practices and ISM controls, with the ability to derive and manage cyber-related requirements.

• Experience using collaboration and delivery tools such as Jira and Confluence.

Advantageous:

• Experience working on complex Defence, Government or mission-critical engineering programs.

• Familiarity with systems integration, verification and validation activities across large-scale technology environments.

• Previous experience working within multidisciplinary engineering teams delivering software-intensive systems.

This role does require the successful applicant to be an Australian Citizen and hold an NV-1 security clearance.

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.