Sr. Internal Auditor

Mercari is the selling app. We make it super easy to sell (or buy) almost anything. We all have things we don't use, never used or simply outgrew. But that stuff still has value. Mercari gives you the power to simply sell it, ship it, and earn some cash for it. Fashion to toys. Sporting goods to electronics. All the brands you know and love. Our mission is simple: to make selling easier than buying. And with 45M+ downloads in the U.S. and 150k new listings every day, we're just getting started.

We are looking for a dynamic, detailed oriented, confident, self-starting individual to join our amazing team. The Sr Internal Auditor supports Mercari's U.S. business by executing risk-based internal audits and SOX compliance activities. You will partner with stakeholders across the organization to evaluate business and technology risks, assess the effectiveness of internal controls, and provide recommendations that strengthen governance, compliance, and operational efficiency. You are eager to take on increasing responsibilities and enjoy working for a fast-paced, growing company. You will play a key hands-on role in helping the company mature its controls environment. This is a hybrid position with an expectation of 2 days in our Palo Alto office each week.

What You'll Be Doing

Internal Audit Engagements

Independently conduct all phases of an audit

Develop audit objectives, testing procedures, and work programs.

Identify risks, control weaknesses, and process improvement opportunities.

Evaluate the effectiveness of internal controls.

Manage stakeholder communications throughout the audit lifecycle.

Perform Risk Assessments

Participate in annual enterprise risk assessments.

Identify emerging risks (cybersecurity, AI, privacy, third-party risk, etc.)

Help prioritize audit activities based on risk exposure

SOX Compliance

Test key controls over financial reporting

Test IT General Controls (ITGCs)

Coordinate with external auditors

Track remediation of control deficiencies and audit findings

External Audit Support

Support the annual financial statement audit by coordinating audit requests, preparing supporting documentation, and performing management review procedures.

Communicate Findings

Prepare audit reports and executive summaries.

Present findings to management and audit leadership.

Recommend practical, risk-based solutions rather than simply identifying issues.

Influence Process Improvements

Partner with business leaders to strengthen controls.

Recommend efficiencies and automation opportunities.

Support governance, risk, and compliance initiatives.

What You’ll Need

Bachelor’s degree in Accounting, Finance, Business, or a related field required

CIA, CISA, or CPA qualification required

5+ years of relevant working experience in Audit and/or Risk Management

Prior Big 4 public accounting experience is strongly preferred

Understanding of and previous experience with AI tools required

Understanding of COSO Frameworks is required. Internal control documentation and risk assessment experience desired

Experience With Netsuite Erp Or Similar Systems Preferred

Experience Using An Audit/sox Tool Such As Workiva Or Equivalent Preferred

Strong knowledge of the technology industry, especially marketplace and ecommerce companies strongly preferred

This position is based in the San Francisco Bay Area with an expectation of in-office (Palo Alto) 2-3 days per week.

The applicable salary range for this role is $113,600 to $170,400. In addition to base salary, Mercari’s total compensation package includes equity and a full range of physical, financial and well-being benefits. For more information about our benefits, please click

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Why Mercari

Small enough to make an impact, but established enough to provide the stability you need to be successful, Mercari is the best of both worlds. At Mercari you are encouraged to take risks. And when you do, you can do it confidently, knowing you have a team and a company that supports you.

As we grow, your career opportunities with Mercari grow. As our teams expand, your responsibilities expand. Our teams are supported with access to new tools, technologies, and learning opportunities.  We will never stop growing.

Total Rewards

Flexibility: Work from home and the office, depending on need and receive flexible time off

Wellbeing: Top-notch insurance plans, best-in-class new parent offerings and access to mind and body wellness apps

Growth: As we grow, your career opportunities grow, we provide access to new tools, technologies and learning opportunities

Comprehensive and total rewards: We provide a strong financial foundation and rewards that go beyond the paycheck

Teamwork: We are each other's biggest fans- we celebrate from virtual coffee breaks to recognition programs