Callum

Hiring loops,
untangled

Coordinate interviews across your team. See candidate context before every call. Keep everyone in sync from sourcing to offer.

Get started free

Callum helps at every stage of the hiring loop

Stage 1

Sourcing

What interviews do I have this week?

You have 7 interviews scheduled this week:

• 3 recruiter screens (Tue, Wed, Thu)

• 2 phone screens (Wed, Fri)

• 2 onsites (Thu, Fri)

Thursday is your busiest day — 4 back-to-back.

Stage 2

Phone screen

Brief me on my 2pm phone screen

Alex Chen — Senior Engineer candidate

📍 Currently at Stripe (3 years)

🎓 Stanford CS, previously at Google

💡 Applied via LinkedIn, strong referral from Jamie

📝 Resume highlights: Led payments infra team, Rust experience

Good luck! This one looks promising.

Stage 3

Onsite

Schedule onsite for Alex Chen

Found availability for 4 interviewers next week:

📅 Tuesday Jan 21

• 10am — System design (Sarah)

• 11:30am — Coding (Mike)

• 1pm — Lunch with team

• 2pm — Behavioral (Lisa)

• 3:30pm — Hiring manager (You)

Should I create the event? Alex will receive the invite automatically.

Stage 4

Debrief

Schedule debrief for Alex Chen

Debrief scheduled for Wednesday Jan 22 at 4pm

Attendees:

• Sarah (system design)

• Mike (coding)

• Lisa (behavioral)

• You (hiring manager)

I've added everyone's feedback notes to the event description.

More ways Callum helps with hiring

From first touch to offer letter, Callum keeps your hiring loop moving.

Reschedule Sarah's interviews to next week

Checking all 4 interviewers' calendars... 🔄

Found a day that works for everyone:

📅 Tuesday Jan 28

• 10am — System design (Mike) ✓

• 11:30am — Coding (Lisa) ✓

• 2pm — Behavioral (Tom) ✓

Should I send updated invites to Sarah and the team?

Who's doing the most interviews this month?

Here's the interview load for January 📊

By interviewer:

• Sarah — 12 interviews (heavy)

• Mike — 8 interviews

• Lisa — 4 interviews

• Tom — 3 interviews

Sarah's calendar is packed. Consider spreading the load to Lisa or Tom for upcoming onsites.

Block interview slots for next month

I'll reserve slots for your interview panel 📅

February availability blocked:

• Tue/Thu 10-11am — System design

• Mon/Wed 2-3pm — Coding rounds

• Fri 11am-12pm — Debriefs

Marked as "Interview hold" on 6 calendars. Candidates won't see these as busy.

What's our time-to-hire this quarter?

Here's Q4 hiring data from Greenhouse 📊

Time-to-hire: 28 days (avg)

By stage:

• Sourcing → Screen: 5 days

• Screen → Onsite: 12 days

• Onsite → Offer: 11 days

Onsite scheduling is your biggest bottleneck. 3 candidates dropped off waiting.

When can Jamie do a system design interview?

Checking Jamie's calendar 👥

Jamie has open slots this week:

Tuesday 2-3pm

Wednesday 10-11am

Thursday 3-4pm

Want me to schedule a system design round with one of your candidates?

Cancel tomorrow's interviews with Alex

Found Alex Chen's onsite tomorrow 📅

Events to cancel:

• 10am — System design (Sarah)

• 11:30am — Coding (Mike)

• 2pm — Behavioral (Lisa)

This will free up 3 interviewer slots. Cancel all?

Works with your ATS

Connect Greenhouse, Lever, or Ashby. Callum pulls candidate context in real-time.

GreenhouseLeverAshby

Hire faster, together

Your calendar knows who's interviewing. Your ATS knows the candidate. Now they work together.

Get started free