Role Description Turn the tax judgement you exercise every quarter into the benchmark frontier AI is graded on. You've owned provisions, run planning across jurisdictions, and taken positions you had to defend. Now that expertise has a new application: shaping how frontier AI models reason through complex tax problems the way an experienced practitioner does. What You'll Do - Design realistic tax tasks: provision calculations, planning scenarios, and multi-jurisdictional questions without a single clean answer. - Write evaluation rubrics that capture sound tax reasoning, defensible positions, and the trade-offs behind them. - Review AI-generated provisions, computations, and analyses for technical accuracy and compliance. - Build reference solutions across direct and indirect tax that anchor how the research evaluates model output. - Flag where models misapply rules, miss jurisdictional nuance, or take positions that wouldn't survive review. Qualifications - 5–8+ years in tax — public accounting practice or a corporate tax function. - You've owned a provision or run planning across jurisdictions. - CPA, EA, ACA / CTA, or equivalent (preferred, not required). - You can explain a position clearly enough to teach the reasoning, not just the result. Requirements - Fully remote, part-time and flexible. - Work is scoped by project and ranges from short engagements to ongoing collaborations, structured as a contract or a monthly retainer. Compensation - $80–$200 per hour, aligned with expertise, scope, and impact; exceptional or highly specialised expertise can go higher. - Ongoing engagements are typically structured as a monthly retainer rather than hourly billing.

Role Description - Prepare an average of 600+ sales and use tax returns monthly for level 1-2 clients, using established best practices and compliance standards. - Communicate regularly with clients via phone and email to address questions, provide updates, and maintain strong relationships. - Review client tax data for accuracy, investigate discrepancies, and take corrective action as needed. - Format and import monthly tax data into Vertex Indirect Tax Returns (VITR) software; experience with VITR is a plus. - Initiate and process electronic filings and payments, ensuring timely submission. - Provide support for online filings, payments, and notices, including responding to tax authority communications. - Collaborate with senior TPS staff to resolve complex issues and support higher-level filings. - Maintain and update client tax compliance reports and documentation. - Participate in structured mentoring and begin peer support activities. - Accommodate additional work hours during peak monthly processing periods (typically the 5th–20th of each month). - Perform other duties and participate in projects as assigned. Qualifications - Familiarity with standard tax compliance regulations for level 1-2 clients. - Proficient in Microsoft Excel and other Microsoft tools; experience with VITR software is a plus. - Strong attention to detail, organizational skills, and ability to manage time and priorities effectively. - Excellent oral and written communication skills. - Customer-focused and results-oriented mindset. - Ability to work independently on routine tasks and collaboratively within a team. - Sound judgment and problem-solving skills. - Willingness to receive mentoring and begin supporting peers. Requirements - Associate’s degree in accounting, business, or a related field, or equivalent relevant experience. - 2–5 years of related experience in tax processing, accounting, or business. - No certifications required; tax-related certifications are encouraged. Benefits - US Base Salary Range: $56,900.00 - $74,000.00. - Base pay offered to new hires may vary based upon factors including relevant industry and job-related skills and experience, geographic location, and business needs. - This role may be eligible for the Vertex Bonus Plan (VOB), a role-specific sales commission/bonus, and/or equity grants. - In no case will your pay fall below applicable local minimum wage requirements.

• Prepare and timely file accurate moderate state and local tax returns, payments & related documents and respond to related notices & audits, as needed • Prepare accurate tax reconciliations; investigate reconciling differences, escalate issues as needed, and assist with clearing open items • Conduct tax research and analysis to support business opportunities • Monitor changes in tax legislation and assess their impact on the company • Collaborate with internal departments to gather necessary information for tax filings and audits • Assist in responding to tax notices and inquiries from tax authorities • Maintain accurate and organized tax records and documentation • Support the tax manager in various tax projects and initiatives • Independently uses multiple tax systems to support assigned tax processes • Supports system testing, updates, and documentation while identifying opportunities for process or technology improvements

• Partner with customers to define success and track progress toward business outcomes • Deliver educational activities throughout the customer lifecycle • Develop and share best practices and Customer Success Plans • Monitor customer health by tracking usage data and escalating critical concerns • Identify and activate commercial growth opportunities and recommend improvements • Ensure customers receive maximum value from their investment • Leverage technology tools like Gainsight and Salesforce • Build and present business plans, report on market and competitor activities