Senior Payroll Specialist - Global

Job Description: We are seeking an experienced Senior Payroll Specialist
(Global) to manage multi-regional payroll operations across Canada, Italy,
China, Mexico, and additional global locations. This role involves close
coordination with Employer of Record (EOR) partner Deel. International payroll
experience is required; expertise in Italian, Chinese, or Mexican payroll is a
plus but not mandatory. Key Responsibilities: Process end to end payroll for
multiple countries (e.g., Canada, Italy), ensuring timely and accurate
execution. Assist with end to end payroll setup in Mexico. Oversee payroll
operations and manage invoices through EOR partner, Deel, across regions
including APAC, LATAM, and EMEA. Ensure compliance with local tax regulations
and manage employer payroll account registrations as needed. Collaborate with
payroll vendors to resolve tax notices, support audits, and facilitate system
transitions or process updates. Coordinate with Treasury to ensure timely
payroll funding and related tax payments. Prepare and submit payroll reports for
accounting and equity Maintain accurate and synchronized employee data across
Workday, Immedis/UKG, Velocity, Deel, and Fidelity. Support year-end payroll
processing, documentation, and reporting. Respond promptly to payroll-related
employee inquiries. Partner with HR, Benefits, and Finance teams to ensure data
integrity Qualifications: Bachelor’s degree in Accounting, Finance, or related
field; Payroll certification (CPP) is a plus. In-house end to end payroll
management would be an advantage Ideally 3-5 years’ experience managing payroll
across multiple regions or countries Strong knowledge of international payroll
compliance Proficient in Deel, or similar payroll systems; experience with
Immedis/UKG and Workday is advantageous. Advanced Excel skills Proven track
record managing sensitive information and exceptional attention to detail
required About Integral Ad Science: Integral Ad Science (IAS) is a leading
global media measurement and optimization platform that delivers the industry’s
most actionable data to drive superior results for the world’s largest
advertisers, publishers, and media platforms. IAS’s software provides
comprehensive and enriched data that ensures ads are seen by real people in safe
and suitable environments, while improving return on ad spend for advertisers
and yield for publishers. Our mission is to be the global benchmark for trust
and transparency in digital media quality. For more information, visit
integralads.com. Equal Opportunity Employer: IAS is an equal opportunity
employer, committed to our diversity and inclusiveness. We will consider all
qualified applicants without regard to race, color, nationality, gender, gender
identity or expression, sexual orientation, religion, disability or age. We
strongly encourage women, people of color, members of the LGBTQIA community,
people with disabilities and veterans to apply. California Applicant
Pre-Collection Notice: We collect personal information (PI) from you in
connection with your application for employment or engagement with IAS,
including the following categories of PI: identifiers, personal records,
commercial information, professional or employment or engagement information,
non-public education records, and inferences drawn from your PI. We collect your
PI for our purposes, including performing services and operations related to
your potential employment or engagement. For additional details or if you have
questions, contact us at compliance@integralads.com. Attention agency/3rd party
recruiters: IAS does not accept any unsolicited resumes or candidate profiles.
If you are interested in becoming an IAS recruiting partner, please send an
email introducing your company to recruitingagencies@integralads.com. We will
get back to you if there's interest in a partnership. #LI-Hybrid Integral Ad
Science (IAS) is a leading global media measurement and optimization platform
that delivers the industry’s most actionable data to drive superior results for
the world’s largest advertisers, publishers, and media platforms. IAS’s software
provides comprehensive and enriched data that ensures ads are seen by real
people in safe and suitable environments, while improving return on ad spend for
advertisers and yield for publishers. Our mission is to be the global benchmark
for trust and transparency in digital media quality. Careers Comparably Linkedin
Newsroom IAS is an equal opportunity employer, committed to our diversity and
inclusiveness. We will consider all qualified applicants without regard to race,
color, nationality, gender, gender identity or expression, sexual orientation,
religion, disability or age. We strongly encourage women, people of color,
members of the LGBTQIA community, people with disabilities and veterans to
apply.