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NYSE: TRIO 61.84 down −0.47 (−0.75%) Close 2 Nov 2026
Open positions
1,262
Countries hiring
29
Graduate engineers a year
220
Average length of service
14.2yrs

Our engineers work on products that will still be in service when they retire: vault doors from the 1970s still open every morning, and some RC-12 cabinets from 1968 are still switching. We expect people to take that seriously, and we give them the time and training to do it properly.

Most of our people stay a long time. The average length of service is fourteen years, and three of the six division presidents joined as engineers or technicians. People move between divisions and countries more often than you might expect: Halsworth to Leiden, Toronto to Houston, Perth to orbit.

What we offer

  • Pay benchmarked every year against the market in each country, and an annual bonus for every permanent employee.
  • A pension or retirement plan with company contributions of up to 10 percent of salary.
  • At least 25 days’ paid holiday, or the local equivalent, plus public holidays.
  • Forty hours of paid training a year, and support for professional qualifications.
  • Shares at a 15 percent discount through the employee share purchase plan.

Recruitment fraud

TriOptimum never asks candidates for payment or bank details, and never recruits through messaging apps. Read our caution.

Open positions by division, 2 November 2026
DivisionOpen positionsMain locations
Security Products318Halsworth, Elk Grove Village, Bengaluru, Frankfurt
Medical Systems271Leiden, Singapore, field roles across Europe
Network Services204Toronto, Vaughan, Ashburn, Slough
Resources & Materials247Perth, Kalgoorlie, Santiago
Agrisystems96Wageningen, Almere
Orbital & Research Systems19Halsworth, Houston
Corporate functions107Halsworth, New York, Bengaluru