Trading & Cost Basis Subject Matter Expert

About This Opportunity

As a Trading & Cost Basis Subject Matter Expert, you will serve as the expert-level resource within the cost basis function, responsible for resolving the highest-complexity issues, leading audit and testing initiatives, and driving process and documentation improvements. This role partners cross-functionally with Product, IT, and Operations teams, serves as the subject-matter expert for internal partners across the firm, and provides mentorship and knowledge transfer to Client Support Specialists — Cost Basis.

Responsibilities

• Resolve escalated, high-complexity cost basis issues involving multi-system discrepancies, ambiguous tax lot scenarios, and advanced corporate action impacts
• Lead and execute audit reviews for accuracy, completeness, and regulatory standards
• Own advanced UAT cycles and validate new platform functionality prior to release
• Identify operational risks within the cost basis function and recommend strategic process improvements
• Document advanced procedures and contribute to the refinement of departmental controls and internal standards
• Serve as the subject-matter expert for internal partners including Product, IT, Operations, and leadership
• Mentor and train Client Support Specialists — Cost Basis on advanced topics, complex case handling, and best practices
• Partner with Product and IT teams on enhancement requests, defect documentation, and release validation
• Coordinate with custodians on complex data issues requiring escalated resolution
• Lead or contribute to documentation redesign and workflow optimization initiatives within the cost basis function

Requirements

• Minimum of two (2) years of significant financial industry experience
• Prior experience in cost basis, tax lot reconciliation, or accounting operations
• Expert-level knowledge of cost basis methodology including all gain/loss methods (FIFO, LIFO, specific identification, average cost), tax lot management, and wash sale rules
• Expert understanding of corporate actions and their cascading impact on tax lot accuracy and cost basis reporting
• Sound analytical judgment to resolve high-complexity, multi-system cost basis discrepancies
• Deep understanding of IRS cost basis reporting requirements and financial industry regulatory standards
• Experience leading audit reviews or UAT cycles
• Prior mentorship or training responsibilities
• Familiarity with Orion platform and custodian coordination processes

Qualifications

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

Skills

• Accounting
• Accounting Operations
• Audit Reviews
• Corporate Actions
• Cost Accounting
• Cost Analysis
• Cost Basis Reporting
• Cost Reconciliation
• Electronic Trading Platforms
• Taxes
• Tax Reconciliation

Benefits

• Competitive benefits package including health, dental, vision, and disability coverage on day one
• 401(k) plan with employer match
• Paid parental leave
• Pet benefits including pawternity leave and pet insurance
• Student loan repayment

Pay

The pay listed in this posting indicates the estimated pay at the time of this posting; however, may vary depending on geographic location, job-related knowledge, skills, and experience. In addition, Orion offers a competitive benefits package which includes health, dental, vision, and disability coverage on day one, 401(k) plan with employer match, paid parental leave, pet benefits including pawternity leave and pet insurance, student loan repayment and more.

About Us

We achieve our best work when we support one another, staying personally accountable to each other and the clients we serve. We create a welcoming environment where everyone is respected, valued, and heard. Our commitment to create raving fans ensures we consistently exceed client expectations. Thinking differently is in our DNA—we innovate always, push boundaries, and reject the status quo to deliver transformative outcomes. Together, we support one another and see it through to success, driving our collective achievements and those of our clients.