callosum
Jobs & hiring outlook.
Explore 12 grouped openings and the hiring signals in callosum’s public postings. Compare the work, the locations, and the requirements before your next move.
Openings over time.
Daily observations of callosum’s public job board. Advertised postings, rather than headcount or completed hires.
Tracking since 25 Oct 2026. The latest successful check on each UTC day replaces that day’s observation. Failed checks do not record zero openings.
View the recorded data (3 days)
Swipe the table to see all workplace counts.
| Day (UTC) | All postings | Remote | Hybrid | Onsite | Unstated |
|---|---|---|---|---|---|
| 2026-10-27 | 12 | 0 | 0 | 12 | 0 |
| 2026-10-26 | 12 | 0 | 0 | 12 | 0 |
| 2026-10-25 | 12 | 0 | 0 | 12 | 0 |
A closer look at the work.
The workplace mix and role categories in callosum’s verified inventory.
Workplace mix
12 verified postings
- Remote00%
- Hybrid00%
- Onsite12100%
- Not stated00%
Open jobs at callosum
- onsiteOlder posting · still listedChecked
- onsiteOlder posting · still listedChecked
What the postings actually say.
These counts describe 12 verified postings. Policies may differ between roles and do not establish an individual candidate’s eligibility.
Work authorization, citizenship & clearance breakdown
0 postings contain an explicit work authorization requirement.
Citizenship: 0 required, 0 preferred, 0 explicitly not required, 12 unstated, 0 conflicting, 0 not assessed.
Clearance: 0 required, 0 preferred, 0 explicitly not required, 12 unstated, 0 conflicting, 0 not assessed.
0 postings explicitly describe worldwide remote applicant policies. Named applicant countries: None assessed.
Employer office countries, separate from remote applicant policies: Not available.
Read 6 examples from original postings
Examples below; the counts above cover all qualifying postings.
- SPONSORSHIP
Security Lead - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗ - SPONSORSHIP
Research Engineer, Evals - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗ - SPONSORSHIP
Agent Runtime & Systems - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗ - SPONSORSHIP
ML Research Engineer - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗ - SPONSORSHIP
Evolutionary Optimisation - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗ - SPONSORSHIP
Research Engineer, Benchmarking - Member of Technical Staff
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Read original posting ↗
Dated source evidence · tracking since 25/10/2026
Most recent observations of source wording. These are separate from daily opening counts and do not reconstruct earlier employer policies.
- ML Research Engineer - Member of Technical Staff
Observed 27/10/2026, 09:22:27 UTC
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Original posting ↗ - Security Lead - Member of Technical Staff
Observed 27/10/2026, 09:22:27 UTC
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Original posting ↗ - Evolutionary Optimisation - Member of Technical Staff
Observed 27/10/2026, 09:22:27 UTC
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Original posting ↗ - Research Engineer, Benchmarking - Member of Technical Staff
Observed 27/10/2026, 09:22:27 UTC
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Original posting ↗ - Expression of Interest - Internships
Observed 27/10/2026, 09:22:27 UTC
Original posting ↗ - Research Engineer, Evals - Member of Technical Staff
Observed 27/10/2026, 09:22:27 UTC
“We offer Visa sponsorship and relocation benefits to hire the best in the world”
Original posting ↗
Observed openings. Clear boundaries.
Counts cover this tracked company board, not every vacancy across the employer. Location variants are grouped in the job list; trend charts count individual source postings. A removal does not prove a hire. Unknown dates, pay and policies stay unknown.
Read our source methodology ↗
