System Integration Engineer

Adactin Group is a 100% Australian-owned global IT consulting company, headquartered in Sydney. We are a trusted technology partner helping organizations drive end-to-end digital transformation through our deep expertise in Microsoft and AWS ecosystems, AI-powered Digital Engineering, and future-ready Quality Assurance.

Our managed delivery approach, backed by domain expertise, ensures successful outcomes for every project. At Adactin, we believe in the power of our people. We foster a dynamic and supportive environment where your career can grow alongside exciting projects that shape the future of technology. Join us, and be part of a team committed to innovation, excellence, and making a difference

We are seeking an experienced ICT Solutions Integration and Systems Engineering Specialist with strong systems engineering capabilities, knowledge of integration frameworks and interface design, and experience developing technical architectures and engineering documentation for complex ICT solutions.

Key Responsibilities

• Develop and manage system and subsystem requirements, ensuring traceability, verifiability and alignment with established verification and validation processes.
• Perform systems engineering activities, including requirements refinement, solution development and technical design trade-off analysis.
• Develop system architectures, interface specifications, design descriptions and engineering artefacts to support solution integration.
• Prepare technical procurement documentation, including Statements of Requirements (SOR) and Statements of Work (SOW).
• Produce systems engineering and architecture documentation, including Functional Performance Specifications (FPS), System/Subsystem Design Descriptions (SSDDs), High-Level Designs, Detailed Designs and Conceptual Architectures.
• Conduct technical reviews, architecture assessments and product evaluations to support procurement, system integration and solution delivery.
• Collaborate with technical teams, business stakeholders and external partners to ensure successful integration of complex ICT solutions.
• Support system verification, validation, interoperability assessments and integration testing activities.
• Identify technical risks, dependencies and integration challenges, recommending appropriate mitigation strategies.

Essential Skills and Experience

• Demonstrated experience in systems engineering, requirements development, solution integration, verification and validation.
• Strong understanding of systems architecture, interface design and integration frameworks.
• Experience developing and maintaining technical specifications, architecture models and engineering documentation.
• Experience applying structured systems engineering, testing and evaluation methodologies.
• Demonstrated ability to conduct technical reviews, design assessments and engineering evaluations.
• Experience preparing technical documentation to support procurement, solution design and delivery.
• Strong stakeholder engagement and communication skills, with the ability to work across multidisciplinary technical teams.
• Ability to analyse complex technical requirements and translate them into practical, integrated solutions.

Desirable Skills and Experience

• Experience supporting complex capability definition, solution design and approval activities.
• Familiarity with requirements management tools such as IBM DOORS, DOORS Next Generation (DNG) or CATIA.
• Knowledge of Model-Based Systems Engineering (MBSE) principles, methodologies and tools.
• Understanding of system interoperability standards and architecture frameworks.
• Experience with complex operational systems, integrated platforms or mission-critical ICT environments.
• Knowledge of structured procurement and technical evaluation processes.

Key Capabilities

• Systems engineering and requirements management
• ICT solution architecture and integration
• Interface design and interoperability
• Technical documentation and engineering artefacts
• Verification, validation and integration testing
• Technical reviews and design assessments
• Stakeholder collaboration and technical risk management