University of Michigan at Ann Arbor
Hr Officer Senior Flint Human Resources
Tonja Petrella in 2025 was employed at University of Michigan at Ann Arbor and had an annual salary of $125,907, according to public records. This salary was 25 percent higher than the average and 49 percent higher than the median salary in University of Michigan at Ann Arbor.
University of Michigan at Ann Arbor records show Tonja Petrella held three jobs from 2019 to 2025.
According to the public records employee's salary increased by $4,140 from 2024 to 2025, which is a 3.4 percent rise. Since 2019, the salary has increased by $35,792, a total rise of 39.7 percent.
| Year | 2025 |
| Full Name | Tonja Petrella |
| Job Title | Hr Officer Senior Flint Human Resources |
| State | Michigan |
| Employer | University of Michigan at Ann Arbor |
| Annual Wage | $125,907 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | University of Michigan at Ann Arbor |
| Year | 2025 |
| Number of Employees | 53,190 |
| Average Annual Wage | $100,486 |
| Median Annual Wage | $84,577 |
Tonja Petrella (2024)Hr Officer Senior | View Person Details |
Tonja Petrella (2023)Hr Officer Senior | View Person Details |
Tonja Petrella (2022)Hr Officer Senior | View Person Details |
Tonja Petrella (2021)Hr Officer Intermediate | View Person Details |
Tonja Petrella (2020)Hr Officer Intermediate | View Person Details |
Tonja Petrella (2019)Hr Officer Intermediate | View Person Details |
Jamie Yost Brandon (2025)Exec Secretary To Top Exec-Office Of The President at University of Michigan at Ann Arbor | View Person Details |
Kinney Devon Ayn-Rose (2025)Project Lead Manager-Mm Family Medicine at University of Michigan at Ann Arbor | View Person Details |
Mathumai Kanapathipillai (2025)Assoc Professor-Dbn Coll Of Eng-Mechanical Eng at University of Michigan at Ann Arbor | View Person Details |
Mark Allan Clague (2025)Professor-School Of Music,Theatre&Dance at University of Michigan at Ann Arbor | View Person Details |
Chiam Yien Sieu (2025)Clinical Asst Prof-Dent Prosthodontics at University of Michigan at Ann Arbor | View Person Details |
Maire Sile O'Modhrain (2025)Professor-School Of Music,Theatre&Dance at University of Michigan at Ann Arbor | View Person Details |
Denise Sepulveda Galarza (2025)Associate Director-Ctr For Res On Learn & Teach at University of Michigan at Ann Arbor | View Person Details |
Jayshri Gandhi M (2025)It Program Manager-Sl Technology Solutions at University of Michigan at Ann Arbor | View Person Details |
Mark Nord C (2025)Safety Senior Supervisor-Eh&S at University of Michigan at Ann Arbor | View Person Details |
Patricia Griffin A (2025)University Housing Asst Dir-Central Administration at University of Michigan at Ann Arbor | View Person Details |