As Internal Audit Manager, you will join a global audit team of ten experienced internal auditors, including an IT lead Auditor based in Amsterdam. You will be based in Chicago alongside another Auditor. Optiver is currently in transition and moving towards a more globally integrated IT operating model. As a result, you will be involved not only in assessments of local entities but also regional and global functions, providing insights to the Management Board and Supervisory Board.  The assessments cover the entire IT spectrum of our organization: from Information Security to IT Operations and from IT risks in HR or payment systems to IT risk in trading systems. Additionally, you will support other Group Auditors on broader audit topics when IT expertise is needed, giving you exposure to a wide array of business areas, such as HR, Legal, Operations, Trading and Finance.

The common purpose is to enhance and safeguard organizational value by conducting risk-based and objective audits, offering advice, and providing valuable insights.

While the Group Audit team was originally based exclusively in Amsterdam, the team is now expanding its presence in key regional offices, including Chicago for Transatlantic business, to enhance and scale the execution of audit activities.The team performs a range of audits and assessments and, when required, special projects across Optiver offices, including Amsterdam, Shanghai, London, New York, Mumbai, Austin, Hong Kong, Singapore, Sydney and Taipei.

As part of the team, you will visit Optiver offices two or three times per year - primarily in the US - for periods of one to two weeks and will also execute audits remotely.

What you’ll do

As Internal Audit Manager, your key responsibilities include:

• Performing IT and Information Security audit engagements in an advanced and continuously evolving IT environment.
• Assisting with planning and executing audits, focusing on IT related risks.
• Supporting broader audit engagements outside of IT areas when required.
• Working with different Optiver teams across the globe, taking cultural differences into account.
• Preparing audit documentation, assist in drafting reports, and communicate findings to stakeholders.
• Continuously learning and growing by being exposed to a fast-moving and complex business environment.
• Supporting the ongoing development and refinement of audit methodology, templates, and reporting standards.

What you’ll get

You’ll join a culture of collaboration and excellence, surrounded by curious thinkers and creative problem-solvers. Motivated by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, collectively tackling some of the toughest challenges in the financial markets.

In addition, you’ll receive:

• The opportunity to work alongside best-in-class professionals from over 40 different countries
• Highly competitive compensation package including performance-based bonus structure
• 401(k) match up to 50%
• Comprehensive health, mental, dental, vision, disability, and life coverage
• 25 paid vacation days alongside market holidays
• Extensive office perks, including breakfast, lunch and snacks, regular social events, clubs, sports leagues and more

Who you are

• At least 6 years of relevant work experience, preferably within large, high-tech organizations.
• Master’s degree in information systems, computer science, or related field.
• Professional certifications such as CISA or CISSP.
• Strong knowledge of IT governance, risk, and controls frameworks (e.g., COBIT, ISO, NIST).
• Proven ability to assess IT controls across infrastructure, applications, and security domains.
• Experience supporting IT audits, reviews, and risk assessments across varied environments.
• Attention to detail - accurate in reviewing documentation, testing controls, and drafting observations.
• Strong Time Management - effectively prioritizes tasks, stays organized, and meets deadlines.
• Strong written and verbal communication skills in English.
• Willingness to develop audit skills and the ability to work both independently and collaboratively.
• A proactive, pragmatic mindset and a strong appetite to learn.
• Prior experiences within financial markets and/or exposure to trading environments is considered a plus.
• Ability to travel internationally for short assignments (approximately 4-6 weeks per year).
• Team player and flexible to connect with colleagues based in Amsterdam and Sydney also considering different time zones the Group Audit operates in.
• Legal authorization to work in the U.S. is required; we will not sponsor individuals for employment authorization for this job opening.

Who we are

At Optiver, our mission is to improve the market by injecting liquidity, providing accurate pricing, increasing transparency and stabilizing the market no matter the conditions. With a focus on continuous improvement, we prioritize safeguarding the health and efficiency of the markets for all participants. As one of the largest market making institutions, we are a respected partner on 100+ exchanges across the globe.

Our differences are our edge. Optiver does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, physical or mental disability, or other legally protected characteristics.