| Full time | Environmental Engineer | 11/20/2024 | Pittsburgh | Pennsylvania |
| Full time | Environmental Engineer | 11/18/2024 | Palatine | Illinois |
| Full time | Thermal Performance Test Engineers - Entry to Mid-level | 10/14/2024 | Powell | Tennessee |
| Full time | Front Office Administrative Assistant | 09/09/2024 | Pittsburgh | Pennsylvania |
| Full time | AIR EMISSIONS STACK TEST FIELD TEAM LEADER | 05/08/2024 | Palatine | Illinois |
| Full time | AIR EMISSIONS STACK TEST FIELD TEAM LEADER | 05/08/2024 | Pittsburgh | Pennsylvania |
| Full time | AIR EMISSIONS STACK TEST FIELD TEAM LEADER | 05/08/2024 | Sumner | Washington |
| Full time | FIELD SCIENTIST | 10/05/2023 | Palatine | Illinois |
| Full time | Interested in working at CleanAir? | 06/15/2022 | Palatine | Illinois |
| Full time | Engineering Intern/Co-op | 03/02/2022 | Powell | Tennessee |