Senior Internal Auditor

About This Role

The Senior Internal Auditor plays a key role in strengthening Biogen’s risk management, governance, and internal control environment, while gaining broad exposure to the processes and building an understanding of Biogen’s business objectives, operating model and industry environment. This role goes beyond routine testing and enables the Senior Auditor to develop strong technical skills, sound judgment, and a business‑oriented perspective.

As part of a high‑performing Internal Audit team, you will execute risk‑based audits, work closely with Audit Management and business stakeholders, and contribute practical insights that support informed decision‑making and continuous improvement across the organization. This role is well-suited for professionals seeking to deepen audit judgment, gain broad business exposure, and build a foundation for future growth within Internal Audit or the life sciences industry.

What You'll Do

• Execute financial, operational, IT, and compliance audits from planning through reporting under the direction of Audit Management, with ownership of assigned audit areas, testing, and deliverables

• Apply a risk‑based approach to identify key risks, evaluate control design and operating effectiveness, and assess process performance in alignment with Internal Audit standards

• Lead interviews and walkthroughs for assigned areas; document process understanding, risks, and controls with clear traceability

• Perform audit procedures (including analytics‑enabled testing), identify control gaps and root causes, and draft clear, evidence‑based observations and recommendations for management review

• Support audit reporting by contributing concise, actionable write‑ups and ensuring workpapers support conclusions and Internal Audit quality standards

• Build strong working relationships with process owners and stakeholders while maintaining independence and objectivity

• Prepare and maintain high‑quality documentation and workpapers in accordance with Internal Audit methodology and documentation standards

• Support SOX activities, including testing of higher‑risk controls, while gaining exposure to broader financial and operational audits (including integrated audits where applicable)

• Participate in special projects and continuous improvement initiatives (e.g., templates, automation, analytics use cases) that enhance audit efficiency and consistency

• Provide informal guidance to less experienced staff (e.g., walkthrough support, testing approach, documentation quality) and escalate risks/issues to Audit Management in a timely manner

Who You Are

You are a critical thinker with the ability to understand business processes and articulate risks clearly and practically. You thrive in a dynamic environment, learning through hands-on audit experience. Your curiosity, adaptability, and self-motivation drive you to expand your technical and business knowledge. You collaborate effectively with audit team members and business stakeholders, fostering strong professional relationships.

Required

• 2+ years of external or internal audit experience

• Bachelor’s degree in Accounting, Finance, Business Administration or related field

• Working knowledge of internal controls, audit methodology, and risk assessment

• Clear and effective written and verbal communication skills

• Strong analytical, organizational and critical-thinking skills

• Willingness to travel up to 20%, including international assignments

• Functional knowledge of Generally Accepted Accounting Principles, General Accepted Auditing Standards and other applicable regulatory requirements.

Preferred

• Experience working in a Big 4 organization

• CPA or meaningful progress towards certification

• Life Sciences industry experience or relevant business experience outside audit

• Experience performing or supporting SOX testing activities

• Exposure to data analytics, technology‑enabled audit tools, AI technology

Additional Information

Base salary offered is determined through an analytical approach utilizing a combination of factors including, but not limited to, relevant skills & experience, job location, and internal equity.

Regular employees are eligible to receive both short term and long-term incentives, including cash bonus and equity incentive opportunities, designed to reward recent achievements and recognize your future potential based on individual, business unit and company performance. 

In addition to compensation, Biogen offers a full and highly competitive range of benefits designed to support our employees’ and their families physical, financial, emotional, and social well-being; including, but not limited to:

• Medical, Dental, Vision, & Life insurances
• Fitness & Wellness programs including a fitness reimbursement 
• Short- and Long-Term Disability insurance
• A minimum of 15 days of paid vacation and an additional end-of-year shutdown time off (Dec 26-Dec 31)
• Up to 12 company paid holidays + 3 paid days off for Personal Significance 
• 80 hours of sick time per calendar year
• Paid Maternity and Parental Leave benefit 
• 401(k) program participation with company matched contributions
• Employee stock purchase plan 
• Tuition reimbursement of up to $10,000 per calendar year 
• Employee Resource Groups participation

Why Biogen?

We are a global team with a commitment to excellence, and a pioneering spirit. As a mid-sized biotechnology company, we provide the stability and resources of a well-established business while fostering an environment where individual contributions make a significant impact. Our team encompasses some of the most talented and passionate achievers who have unparalleled opportunities for learning, growth, and expanding their skills. Above all, we work together to deliver life-changing medicines, with every role playing a vital part in our mission. Caring Deeply. Achieving Excellence. Changing Lives.

At Biogen, we are committed to building on our culture of inclusion and belonging that reflects the communities where we operate and the patients we serve. We know that diverse backgrounds, cultures, and perspectives make us a stronger and more innovative company, and we are focused on building teams where every employee feels empowered and inspired. Read on to learn more about Biogen.

All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, sexual orientation, marital status, race, color, national origin, ancestry, ethnicity, religion, age, veteran status, disability, genetic information or any other basis protected by federal, state or local law. Biogen is an E-Verify Employer in the United States.