How much does SI Group pay?
As of Oct 7, 2026, 6 of the 20 open jobs SI Group has on Alion state a salary. The median is $90k a year, and the middle half pays $84k to $130k. The best-paid open role is Principal Chemist at $180k.
SI Group pay by city
| Location | Jobs | Median | Typical range |
|---|---|---|---|
| Rotterdam | 4 | $90k | $62k – $130k |
SI Group pay by work format
| Work format | Jobs | Median | Typical range |
|---|---|---|---|
| In office | 6 | $90k | $84k – $130k |
How pay at SI Group is spread
6 of 21 vacancies state a salary (29%). The range below is built from those 6 stated figures only, never from an estimate.
Best-paid open roles at SI Group
| Principal ChemistLead | $180k |
| Process Controls Engineer | $150k |
| Chemist - R&D and Process TechnologyMiddle | $130k |
| IT Support EngineerJunior | $90k |
| E&I TechnicianMiddle | $84k |
| Maintenance Mechanic | $62k |
Questions about pay at SI Group
What is the average salary at SI Group?
The median salary stated in SI Group job postings is $90k a year, across 6 open jobs with pay; the middle half pays $84k to $130k.
How much does SI Group pay in Rotterdam?
Jobs at SI Group in Rotterdam state a median of $90k a year (4 postings with pay).
What is the highest-paying open job at SI Group?
Right now it is Principal Chemist at SI Group, with a stated $180k a year.
Does SI Group publish salaries in its job postings?
30% of the open jobs SI Group has on Alion state a salary: 6 of 20.
How to cite this page
Only pay an employer wrote in its own job advert is used, converted to US dollars a year; estimates are never mixed in. The figures are rebuilt twice a day from the vacancies open now.
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page.
SI Group salaries: median $90k across 6 job postings with pay. Alion, Oct 7, 2026, https://alion.io/company/siigroup/salaries