Senior Infrastructure Engineer

Paxus Australia Pty Ltd.; South Canberra; On-site; AUD 180,000 - 240,000; Full time

Job summary

Paxus Australia Pty Ltd. in Canberra is seeking a Senior Infrastructure Engineer to own identity and access capabilities, with a strong emphasis on Azure AD B2C.

You will design, improve and document critical identity architectures for government programs, ensuring governance and cyber security alignment. You will work with architects, delivery teams and stakeholders to translate strategic direction into practical, secure solutions.

Qualifications

• Extensive Azure AD B2C policy design and custom policy development.
• Expertise in trust framework, relying party policies and token issuance.
• Strong identity and security protocol knowledge (OAuth 2.0, OIDC, JWT).
• Experience reducing technical debt in Azure AD B2C implementations.
• Ability to diagnose design, access, entitlements, and permission issues.
• Proficient in producing high-quality architecture artefacts and design specs.
• Git version control with typical branching strategies.
• Stakeholder engagement and ability to communicate with senior stakeholders.
• Experience in Agile multi-disciplinary delivery teams.

Responsibilities

• Design, improve and document identity and access capabilities with a focus on Azure AD B2C.
• Translate strategic direction into practical, secure, governance-aligned solutions.
• Collaborate with architects, delivery teams and stakeholders to implement designs.
• Produce architecture and design documentation to support governance and delivery.

Skills

Azure AD B2C

Policy design

Identity security

OAuth 2.0

JWT

Security architecture

Stakeholder comms

Agile delivery

Design documentation

Education

Bachelor's degree in Information Technology or related field

Tools

Git

Job description

Overview

Join a major Federal Government program focused on strengthening transparency and accountability. As a Senior Infrastructure Engineer, you will play a key role in designing, improving and documenting critical identity and access capabilities, with a strong focus on Azure AD B2C and related eIDAM architecture. You will work closely with architects, delivery teams and stakeholders to translate strategic direction into practical, secure and supportable solutions that meet governance and cyber security expectations.

Required Skills

• Extensive Azure AD B2C Custom Policy expertise including trust framework design, policy development, claims transformations, user journeys, REST integrations, federation, relying party policies, troubleshooting and optimisation
• Strong experience with trust framework and relying party policy structures including rationalisation, token issuance, claims mapping and reusable design patterns
• Strong identity and security protocol knowledge including OAuth 2.0, OpenID Connect, JWT, claims based authorisation, API security, token lifecycle management and secure authentication and authorisation practices
• Experience uplifting and remediating Azure AD B2C implementations including technical debt reduction, consolidation of policies and user journeys, governance and security control enhancement
• Proven ability to diagnose and resolve design and access issues across identities, authentication, authorisation, entitlements and permission
• Strong technical design and documentation capability including producing high quality solution artefacts and detailed design specifications
• Git version control experience including common branching strategies
• Confident stakeholder engagement skills with the ability to communicate clearly with both technical teams and non technical senior stakeholders
• Ability to work effectively in multidisciplinary Agile delivery teams

Nice to Have Skills

• Relevant cloud certifications
• Knowledge of IT frameworks such as ITIL and TOGAF
• Familiarity with Commonwealth ICT frameworks and governance expectations

Preferred Education and Experience

• Tertiary qualifications in Information Technology or a related discipline
• Senior level engineering and design experience, ideally in complex enterprise or government environments
• Demonstrated experience producing architecture and design documentation that supports governance and delivery

Other Requirements

• Contract to 30 June 2027 with potential extension options
• If based outside Canberra, you must be able to work to Canberra time and attend an office as required
• Must be able to obtain AGSVA Negative Vetting Level 1 security clearance, and candidates already holding an active NV1 will be highly regarded

Paxus values diversity and welcomes applications from Indigenous Australians, people from diverse cultural and linguistic backgrounds, and people living with a disability. The recruitment and selection process varies, and some roles may include completion of pre-employment assessments, in-person or online interviews, psychometric testing, written assessments, scenario-based tasks, presentations, and pre-employment checks such as medical (including drug and alcohol), criminal history, or financial. If you require an adjustment to any part of the recruitment process, including the application form or assessments completed in an alternate format, please contact me using the above details. As part of our ongoing commitment to accessibility, the Paxus website has been independently audited against (WCAG) 2.2 Level AA, with ongoing improvements continuously being made to enhance accessibility. If you experience any difficulties, please contact me on the above details.