Summary With nearly 1,700 attorneys, IRS Chief Counsel is the largest tax law firm nationwide. Our attorneys are among top tax law practitioners and some of the very best legal minds found anywhere. Together with the IRS, we serve the public by applying the tax code with fairness and integrity. After pausing hiring in 2025, we now seek new law graduates and experienced attorneys to join us. Click to learn more: IRS Office of Chief Counsel Careers Site Meet Our People Learn about our Legal Divisions Responsibilities The Senior Technician Reviewer (STR) serves as a technical expert for the Associate Chief Counsel, Energy Credits and Excise Tax (ECE) responsible for one or more of the specialty areas of tax law under ECE's jurisdiction, including tax matters involving natural and renewable energy resources, business and energy-related tax credits and incentives, and excise taxes. The STR is responsible for some of the most complicated, visible, and unusual assignments and projects in the ...