Tax Senior Accountant

Our Company: ISN was established in 2001 and is a global leader in contractor and supplier management. We work closely with a variety of household-name clients in the US, Canada, Europe, Australia, Latin America, and the Middle East to connect them with safe and reliable contractors and suppliers and incorporate a level of due diligence in the contractor management process.

What You’ll Do

• Prepare and review federal, state, and international tax returns and supporting workpapers


• Manage filings and monitor changing tax regulations and legislation


• Perform GL account reconciliations related to tax


• Support multinational tax compliance, including income, indirect, and other filings


• Partner with internal teams and external stakeholders on audits, inquiries, and tax matters


• Assist in tax research, forecasting, and analysis of new legislation


• Maintain and track the annual tax filing calendar


• Contribute to process improvements and ongoing compliance initiatives (ISO, internal controls)

What You Bring

• 3+ years of corporate tax experience (multinational, income, and/or indirect tax) Bachelor’s degree in Accounting or related field


• CPA or CPA candidate preferred


• Experience with SALT and/or international tax is a plus


• Strong proficiency in Excel and Microsoft Office tools


• Familiarity with tools like Avalara, NetSuite, Vertex, Tableau, or Salesforce is a plus


• Excellent analytical, problem-solving, and organizational skills


• Ability to thrive in a fast-paced, growth-oriented environment

Why Join ISN

• Work on global tax operations in a rapidly expanding company


• Gain exposure to complex, multinational compliance and strategy


• Collaborate with cross-functional teams and leadership


• Opportunity to grow into increasing levels of responsibility

ISN Benefits*

• 100% company-paid monthly insurance premiums for employees and dependents




• Medical, Dental, Vision, and Life Insurance




• Employee assistance program


• 4% retirement matching 


• Long-Term & Short-Term Disability Coverage


• Paid time off




• 0-1 year – 15 day (pro-rated first year)


• 1-5 years – 20 days


• 5-10 years – 25 days


• 10+ years – 30 days




• Holidays – 13 paid holidays


• Monthly cell phone reimbursement


• Complimentary parking space or monthly reimbursement for DART public transportation


• Team-building activities and events, including quarterly kick-off meetings and community volunteer day


• Matching charitable gift program


• Professional development & training opportunities


• Wellness Program: Focuses on community, financial, mental, nutrition, physical and social health


• Business casual, jeans allowed

Onsite Requirements: Employees must be within a commutable distance to the office and be willing to come into the office for required trainings, events, team activities, and meetings. Employees are required to be in-person during training and at least 3 days per week on an ongoing basis. 

*All benefits are subject to change with notice to the employee

ISN does not provide work visa sponsorship for this position (such as H-1B visa sponsorship in the United States). Applicants for employment must possess work authorization/right to work without the need for sponsorship by the employer now or in the future

All job offers will be contingent on successful completion of a drug screen and background check.

ISN is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

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