Configure your pool
Set up interviewer pools with assignment rules, panel size, and buffer times. One-time setup, unlimited interviews.
Interview Scheduling
Interview Scheduling Software That Ends Calendar Chaos
Rena's interview scheduling software handles timezone coordination, panel availability, and round-robin assignment, so your team can stop juggling calendars and start talking to candidates.
0%Less time schedulingCompared to manual coordination
0hrsSaved per recruiter/monthOn interview coordination alone
0Back-and-forth emailsCandidates self-schedule in one click
0xFaster time-to-interviewFrom application to scheduled slot
Interview Scheduling Is Broken. Here's the Data.
Recruiting teams are smaller. Hiring processes are longer. The result? Recruiters drowning in calendar logistics instead of evaluating talent.
- 80%
of recruiters say scheduling consumes most of their time
Manual calendar juggling, email back-and-forth, and timezone math eat into hours that should be spent finding great candidates.
- 4 in 5
recruiters have lost candidates due to slow scheduling
Top candidates are off the market in 10 days. Every day of scheduling delays is a day your best talent is accepting offers elsewhere.
- 42%
more interviews per hire than three years ago
Panel interviews, multi-stage processes, and stakeholder alignment have made scheduling much harder, but the tools haven't kept up.
From Setup to Booked in Four Steps
Calendars sync automatically
Microsoft 365 and Google Calendar connect in one click. Free/busy data flows in real-time, no calendar sharing needed.
Candidate receives invite
A scheduling card appears in their conversation thread. Everything happens in their existing conversation thread.
Interview booked instantly
The candidate picks a slot. Rena assigns the interviewers, generates the meeting link, and sends confirmation to everyone.
Timezone Coordination
Global Hiring Without the Timezone Headache
Coordinating across San Francisco, London, and Singapore? Rena automatically converts all availability into the candidate's local time, filters out unreasonable hours (no 3 AM slots), and scores each option by time-of-day preference.
- Candidate always sees slots in their own timezone
- Reasonable hours filter (8 AM - 8 PM) prevents bad slots
- Time-of-day scoring: mornings rated highest, evenings lowest
- Supports 80+ IANA timezones out of the box
Click any city to explore
Showing slots in London time (GMT)
10:00 AM
Peak focus hours
95%
1:00 PM
US East Coast overlap
88%
3:30 PM
Asia overlap window
75%
Algorithm filters to 8 AM – 8 PM in the candidate's timezone, then ranks internally by cross-timezone overlap, interviewer load, and time-of-day preference. Candidates only see the top-ranked slots.
Panel Coordination
Panel Interviews That Actually Work
When one panelist reschedules, the entire sequence falls apart (unless your system handles it natively). Rena uses a sweep-line algorithm to find windows where 2-5 interviewers are simultaneously free, across calendars and timezones.
- Supports 2-5 interviewer panels with real-time overlap detection
- Reads free/busy from Microsoft 365 & Google Calendar
- Buffer time between interviews (configurable per pool)
- Auto-generates Teams or Google Meet links from host calendar
SK
Sarah K.
Lead · EST · Microsoft
JL
James L.
Panelist · GMT · Google
PM
Priya M.
Panelist · IST · Microsoft
| Interviewer | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM |
|---|---|---|---|---|---|---|---|---|
SK Sarah K. | ||||||||
JL James L. | ||||||||
PM Priya M. |
All available
Partial
Busy
Sweep-line algorithm finds overlapping windows across all panel members. Supports 2-5 interviewers simultaneously.
Fair Load Balancing
Round-Robin That's Actually Fair
Most systems use simple rotation. Rena uses a weighted shortfall algorithm that accounts for weight, priority tiers, and recency, so workload distribution stays balanced even with different schedules and part-time members.
- Three-stage scoring: Priority tier → Weighted shortfall → Least recently assigned
- Configurable weights (2x weight = 2x interviews)
- New member calibration prevents flooding with interviews
- Three modes: Round-Robin, Specific, or Any Available
AC
Alex Chen
12 interviews3.7 above
MS
Maria Santos
8 interviews0.3 below
DP
David Park
14 interviews5.7 above
LW
Lisa Wang2x weight
5 interviews11.7 below
TB
Tom Baker
11 interviews2.7 above
Total interviews: 50Algorithm: Weighted Shortfall + LRA
Candidate Self-Scheduling
Candidates Book in Their Conversation, No Context Switch
Unlike external scheduling pages that pull candidates out of your platform, Rena embeds a scheduling card directly in the messaging thread. Candidates pick a slot, confirm, and they're booked. All without leaving the conversation.
- Scheduling card appears in the candidate's message thread
- Slots refresh in real-time with 60-second intervals
- Configurable deadlines with auto-remind, auto-reject, or escalate
- Meeting link included in confirmation with zero manual steps
Schedule Your Interview
Software Engineer · 45 min
Your Calendars Connected, Your Privacy Protected
One-click OAuth connection to Microsoft 365 or Google Workspace. Rena reads only free/busy status, never event titles, attendees, or descriptions. Meeting links are auto-generated from the host's calendar.
Real-time merged availability
9:00 AM
Team Standup
Outlook10:00 AM
Available for interviews
11:00 AM
Product Review
Google12:00 PM
Available for interviews
1:00 PM
Lunch
Manual2:00 PM
Available for interviews
3:00 PM
Client Call
Outlook4:00 PM
Available for interviews
Only reads free/busy status, never event details. Your calendar data stays private and secure.
Delegate Scheduling. Keep Control.
Create named interviewer pools per stage, set assignment rules once, and let the system handle the rest. Recruiters stop chasing calendars and start talking to candidates.
- Most popular
Round-Robin
System picks interviewers via weighted shortfall algorithm. Candidates see slots from all pool members; the system decides who at booking time.
- High-touch
Specific Interviewer
Hand-pick which interviewer(s) meet each candidate. Slots shown only from those specific people. Full control for senior roles.
- Fastest
Any Available
All active pool members considered. Broadest availability for fastest booking. Interviewers sorted by timezone proximity to candidate.
Why Built-in Interview Scheduling Beats Add-on Tools
External tools like Calendly work for 1:1 meetings. Enterprise hiring needs more.
| Capability | External Tools | Rena |
|---|---|---|
| Panel interviews (2-5) | — | ✓ |
| Round-robin load balancing | — | ✓ |
| In-platform candidate booking | — | ✓ |
| Timezone-aware slot scoring | — | ✓ |
| Auto Teams/Meet link generation | — | ✓ |
| Per-seat licensing cost | ✕ | — |
| Candidate leaves your platform | ✕ | — |
| Recruiter manual intervention | ✕ | — |
We used to spend 20+ hours a month just coordinating panel interviews across three timezones. With Rena, candidates self-schedule and the right interviewers are assigned automatically. That time goes to sourcing now.
Ready to Fix Your Interview Scheduling?
See how Rena automates timezone coordination, panel scheduling, and candidate self-booking. Save your team 35+ hours every month.
Book a call