Assistant Business Manager

This is a high-impact, highly visible role supporting the Chief of Staff (People) and the wider leadership team. You’ll help translate priorities into execution—connecting strategy, operations and communications to ensure the function runs effectively. You’ll work across senior stakeholders, contribute to key leadership forums (including ExCo), and play a critical role in delivering the People strategy for the firm.

Executive & Leadership Support

• Support the Chief of Staff in driving key priorities across the People function.
• Coordinate ExCo and senior leadership materials (papers, agendas, follow‑ups).
• Track actions and commitments, ensuring delivery against deadlines.
• Support business planning, tracking and reporting across the function.
• Maintain key management information (scorecards, metrics, dashboards).
• Assist with budgeting, invoicing and financial tracking.
• Help ensure strong governance and control across activities.
• Support delivery of priority projects (e.g., engagement surveys, People initiatives, transformation programmes).
• Coordinate inputs across teams and ensure alignment to timelines.
• Identify risks and proactively resolve issues.
• Support internal communications for the People function and leadership updates.
• Help shape clear, consistent messaging across channels.
• Coordinate key events, off‑sites and leadership forums.
• Act as a key point of coordination across People, Finance, Communications and other functions.
• Build strong relationships with senior stakeholders.
• Help ensure alignment across competing priorities.

Benefits & Expectations

• Hybrid working and reasonable accommodations.
• Generous holiday policies.
• Excellent health and wellbeing benefits including corporate membership to Wellhub.
• Paid volunteer time to step away from your desk and into the community.
• Professional development courses, tuition/qualification reimbursement and more.
• Maternal/paternal leave benefits and family services.
• All employee events including networking opportunities and social activities.
• Lunch allowance for use within our subsidized onsite canteen.
• Annual bonus opportunity: position may be eligible to receive an annual discretionary bonus award from the profit pool.

Must Have Skills

• Experience in a business management, project management, or chief of staff support role.
• Strong organizational skills with the ability to manage multiple priorities.
• Experience working with senior stakeholders and/or leadership teams.
• Excellent written and verbal communication skills.
• Strong attention to detail and ability to handle sensitive information.
• Highly proactive, with strong problem‑solving mindset.
• Comfortable working in a fast‑paced, evolving environment.

Nice to Have Skills

• Knowledge and experience of the Senior Manager and Certification Regime.
• Supervisory responsibilities.
• Mentoring.
• Leadership development programs.
• Regular training.
• Career development services.
• Continuing education courses.

Regulatory & Ethical Requirements

You will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role. You should be willing to adhere to the provisions of our Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants’ past political contributions or activity may impact applicants’ eligibility for this position. Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee’s job functions (as determined by Janus Henderson at its sole discretion).

Equal Opportunity Employment

Janus Henderson Investors is an equal‑opportunity employer. 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. All applications are subject to background checks.