Updated August 15, 2026
Jim O’Neil is the assistant head coach/safeties for the Detroit Lions. DLP IQ also lists coaching jobs with the New York Jets, Buffalo Bills, Cleveland Browns, San Francisco 49ers, Oakland Raiders and Las Vegas Raiders. Roster membership as of August 14, 2026.
Player information
- Title: Assistant Head Coach/Safeties
- Roster as of: August 14, 2026
Coaching career
DLP IQ records Jim O’Neil’s coaching jobs below. Head-coach W-L is his record in those games. Assistant rows are the job only.
New York Jets (2009–2012)
Jim O’Neil was quality control-defense coach of the New York Jets in the 2009 regular season (16 games).
Jim O’Neil was quality control-defense coach of the New York Jets in the 2010 regular season (16 games).
Jim O’Neil was assistant defensive backs coach of the New York Jets in the 2011 regular season (16 games).
Jim O’Neil was assistant defensive backs coach of the New York Jets in the 2012 regular season (16 games).
Buffalo Bills (2013–2014)
Jim O’Neil was assistant linebackers coach of the Buffalo Bills in the 2013 regular season (16 games).
Jim O’Neil was defensive coordinator coach of the Buffalo Bills in the 2014 regular season (16 games).
Cleveland Browns (2015)
Jim O’Neil was defensive coordinator coach of the Cleveland Browns in the 2015 regular season (16 games).
San Francisco 49ers (2016)
Jim O’Neil was defensive coordinator coach of the San Francisco 49ers in the 2016 regular season (16 games).
Oakland Raiders (2018–2019)
Jim O’Neil was senior defensive assistant coach of the Oakland Raiders in the 2018 regular season (16 games).
Jim O’Neil was senior defensive assistant coach of the Oakland Raiders in the 2019 regular season (16 games).
Las Vegas Raiders (2020)
Jim O’Neil was senior defensive assistant coach of the Las Vegas Raiders in the 2020 regular season (16 games).
Detroit Lions (2024–2025)
Jim O’Neil was defensive assistant coach of the Detroit Lions in the 2024 regular season (17 games).
Jim O’Neil was defensive assistant/safeties coach of the Detroit Lions in the 2025 regular season (17 games).
Postseason
Jim O’Neil was quality control-defense coach of the New York Jets in the 2009 postseason (3 games).
Jim O’Neil was quality control-defense coach of the New York Jets in the 2010 postseason (3 games).
Jim O’Neil was defensive assistant coach of the Detroit Lions in the 2024 postseason (1 game).
Coaching jobs
| Year | Team | Role |
|---|---|---|
| 2009 | New York Jets | Quality control-defense coach |
| 2009 playoffs | New York Jets | Quality control-defense coach |
| 2010 | New York Jets | Quality control-defense coach |
| 2010 playoffs | New York Jets | Quality control-defense coach |
| 2011 | New York Jets | Assistant defensive backs coach |
| 2012 | New York Jets | Assistant defensive backs coach |
| 2013 | Buffalo Bills | Assistant linebackers coach |
| 2014 | Buffalo Bills | Defensive coordinator coach |
| 2015 | Cleveland Browns | Defensive coordinator coach |
| 2016 | San Francisco 49ers | Defensive coordinator coach |
| 2018 | Oakland Raiders | Senior defensive assistant coach |
| 2019 | Oakland Raiders | Senior defensive assistant coach |
| 2020 | Las Vegas Raiders | Senior defensive assistant coach |
| 2024 | Detroit Lions | Defensive assistant coach |
| 2024 playoffs | Detroit Lions | Defensive assistant coach |
| 2025 | Detroit Lions | Defensive assistant/safeties coach |
Playing career
No NFL counting seasons are in DLP IQ for this person yet.
Sources
Every counting number on this page is from DLP IQ. Derived rates use official NFL formulas on those counts. High-school, family, and award lists are omitted until DLP IQ has them. This page does not invent yards.
