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Grange Advisory is currently seeking Senior Investigators (Workplace / Employment)

Job Title: Senior Investigator (Workplace / Employment)

About the Role

Grange Advisory is seeking an experienced Senior Investigator to lead complex workplace investigations, conduct workplace cultural reviews, workplace grievance processes and preliminary assessments. This role is suited to a legally trained or experienced HR/ER professional who can operate with a high degree of autonomy, managing sensitive and high-risk matters from intake through to final outcome.

You will be responsible for delivering fair, thorough, and legally robust investigations and other grievance processes, often involving senior stakeholders and complex factual scenarios across a diverse client base, while ensuring participants are treated with respect and care throughout the process.

This role would be part time permanent position with salary and hours to be negotiated.

Key Responsibilities

Lead Complex Investigations processes

  • Conduct preliminary assessments, grievance processes, review of actions and cultural reviews

  • Independently conduct workplace investigations and related processes into complex matters end-to-end, including:

    • Bullying, harassment and discrimination

    • Misconduct and serious misconduct

    • Code of conduct breaches

    • Whistleblower and integrity complaints

  • Define scope, develop strategies, and manage competing risks and priorities

  • Conduct detailed interviews and assess conflicting evidence

  • Ensure all investigations and related processes are conducted in a procedurally fair, impartial, and trauma-informed manner

  • Manage multiple matters concurrently, ensuring timely progression and completion of investigations

Apply Legal Expertise

  • Apply strong knowledge of employment law, administrative law principles, and procedural fairness

  • Ensure investigations and related processes are legally defensible and aligned to best practice

  • Identify legal and reputational risks

Reporting & Outcomes

  • Produce high-quality, evidence-based investigation reports, including:

    • Findings of fact

    • Analysis of evidence and credibility

    • Clear and defensible conclusions

  • Prepare cultural review reports, including observations and recommendations arising out of comprehensive review processes

  • Prepare preliminary assessment reports, outlining recommendations for how a matter might best be resolved or progressed

  • Provide recommendations to support decision-making within required timeframes

Stakeholder & Client Engagement

  • Work with a diverse range of clients, including:

    • Law firms

    • Private sector employers

    • Public sector employers

  • Build and maintain collaborative working relationships with clients, HR, legal teams, and key stakeholders

  • Engage confidently with senior leaders and decision-makers

  • Ensure clear, professional, and effective communication throughout all stages of the investigation

  • Manage sensitive matters with discretion and professionalism

  • Ensure respectful, professional, and empathetic interactions with all participants throughout the investigation process

Continuous Improvement

  • Contribute to strengthening investigation frameworks, policies, and templates

  • Support capability uplift across client organisations where required

  • Be part of internal initiatives to drive continuous improvement and innovative solutions to support client outcomes

Grange Advisory is a growing boutique specialist firm with a strong reputation in its field. We are proud of this reputation and strive to maintain and develop this further within the industry we support. If this excites you, please apply!

About You

Essential Experience and qualifications

  • Qualified lawyer (current or former practising certificate preferred)

  • Current Private Security Individual Licence

  • 8–12+ years’ experience in:

    • Employment law and/or

    • Workplace investigations

  • Demonstrated experience conducting complex workplace investigations, cultural reviews and grievance processes autonomously, including:

    • Managing matters from intake through to final report

    • Handling sensitive and high-risk complaints

  • Experience gained in private practice, consulting, corporate, or public sector environments

Key Capabilities

  • Deep understanding of employment law, procedural fairness and natural justice

  • Strong ability to analyse evidence and make sound, defensible findings

  • Demonstrated ability to conduct investigations using a trauma-informed approach, balancing sensitivity with objectivity

  • Exceptional written and verbal communication skills

  • Highly developed interviewing and questioning techniques, including managing vulnerable or distressed participants

  • Strong time management and organisational skills, with the ability to:

    • Manage competing priorities and deadlines

    • Progress multiple investigations concurrently

    • Deliver outcomes in a timely and efficient manner

  • Collaborative approach, with the ability to work effectively with others while maintaining independence and impartiality

  • Ability to operate independently with minimal supervision

  • Strong judgement, integrity, and discretion

Desirable

  • Experience conducting reportable conduct matters

  • Experience managing investigations involving senior executives or complex organisational dynamics

  • Familiarity with public sector frameworks or regulatory environments

Why join us

  • Work on complex, high-impact matters across diverse clients

  • High level of autonomy and trust

  • Exposure to a variety of sectors and legal contexts

  • Competitive salary aligned to senior market benchmarks

  • Genuine flexibility

If you meet these criteria send your CV to alexandraboudrie@grangeadvisory.com