Temporary Human Resources Specialist II

Headquartered in Carlsbad, California, and with offices in Boston, Massachusetts, and Dublin, Ireland, Ionis has been at work for more than three decades discovering medical breakthroughs that have redefined life for people with serious diseases. We’re pioneers in RNA-targeted medicines, and our platform continues to revolutionize drug discovery and transform lives for patients with unmet needs. With multiple marketed medicines and a leading pipeline in neurology, cardiology and select areas of high patient needs, we continue to drive innovation in RNA therapies in addition to advancing new approaches in gene editing to provide greater value to patients and are well positioned financially to deliver on our strategic goals.

At Ionis, we pride ourselves on cultivating a challenging, motivating and rewarding environment that fosters innovation and scientific excellence. We know that our success is a direct result of the exceptional talents and dedication of our employees.

With an unprecedented opportunity to change the course of human health, we look to add diverse individuals, skill sets and perspectives to our exceptional team. We continue to invest time, money and energy into making our onsite, hybrid and remote work environments a place where solid and lasting relationships are built and where our culture and employees can thrive.

We’re building on our rich history, and we believe our greatest achievements are ahead of us. If you’re passionate about the opportunity to have meaningful impact on patients in need, we invite you to apply and join us. Experience and contribute to our unique culture while you develop and expand your career!

Assignment length: Approximately 2 months (until May 2026) |
All Applications must be received by 2/25/2026.

The Temporary Human Resources Specialist II provides high-quality administrative and operational support to the overall Human Resources team and reports to the Human Resources Business Partner in a culture-forward, mission-driven biotech environment. This role requires exceptional organizational skills, strong attention to detail, and the ability to manage multiple priorities in a fast-paced environment while maintaining strict confidentiality.

• Complete weekly new hire data entry in UKG and ensure data accuracy.
• Process employee lifecycle changes including promotions, supervisor changes, department transfers, and other employment updates.
• Process Commitment Awards and FIC bonuses.

• Support onboarding process administration to ensure a smooth new hire experience.
• Prepare onboarding materials for new supervisors and distribute to supervisors and HR representatives.

• Provide primary reception coverage during breaks, lunches, and time off.
• Order and coordinate catering for internal meetings.
• Coordinate Executive Chats and related logistics.

• Identify opportunities to enhance HR processes and recommend improvements to increase efficiency and effectiveness.
• Perform other duties as assigned.

• At least year of related HR or administrative experience.
• High School diploma or equivalent required; bachelor’s degree in HR, business, or related field preferred.
• Strong organizational skills with exceptional attention to detail.
• Ability to handle sensitive and confidential information with discretion.
• Excellent verbal and written communication skills.
• Ability to prioritize, multitask, and adapt to changing priorities.
• Proactive, solution-oriented mindset with strong follow-through.
• Ability to effectively interact with employees and leaders at all levels of the organization.
• Proficiency in Microsoft Office Suite (Outlook, Word, Excel, and PowerPoint).
• Experience with UKG and/or SAP preferred.

For more information about Ionis and to apply for this position, please visit our website,  Reference

Requisition #TEMPO
003990

The hourly pay scale for this position is $21.84/hour to $29.45/hour

NO PHONE CALLS PLEASE. PRINCIPALS ONLY.

Ionis Pharmaceuticals, Inc. and all its subsidiaries are proud to be EEO employers.

#LI-Onsite

Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.