How do I support group interviews in a scheduling app?

To support group interviews in a scheduling app, design around one core idea: an interview is a session with multiple participants, roles, and a shared time slot. From there, make availability, booking, notifications, and rescheduling work for groups instead of just one-on-one meetings.

1) Model the right entities

At minimum, you’ll want:

• Interview / Session
  • title, duration, date/time, timezone, location or meeting link
• Participants
  • candidates
  • interviewers
  • optional coordinator/recruiter
• Roles
  • define whether a participant is required or optional
• Availability
  • per person, with working hours, busy blocks, PTO, etc.
• Interview slots
  • candidate-facing time options that satisfy all required attendees

If you support multiple interviewers in one session, treat them as required attendees and compute only time slots where all required people are free.

2) Decide what “group interview” means in your product

There are two common cases:

A. One candidate, multiple interviewers

Example: panel interview.

• Need one shared slot
• Candidate plus 2–5 interviewers
• All interviewers must be free

B. Multiple candidates, one or more interviewers

Example: group assessment.

• Need one shared slot for several candidates
• Often has a capacity limit
• May need waiting list or batch booking

The scheduling logic is different, especially for capacity and attendee counting.

3) Build availability matching logic

For a group interview, generate candidate time slots by intersecting availability across all required people.

Process:

1. Start with the interview duration and working-hour constraints
2. Pull each required attendee’s free/busy data
3. Find overlapping free windows
4. Subtract buffers, travel time, and breaks
5. Produce valid start times

If needed, add rules like:

• minimum notice
• max interviews per day
• no back-to-back meetings
• interviewer-specific working hours

4) Support optional and required attendees

Not everyone in a group session should affect slot eligibility.

• Required attendees: must be available
• Optional attendees: invited if possible, but do not block scheduling

This is important for recruiters, observers, or backup interviewers.

5) Handle capacity if candidates are grouped

For true group interviews with multiple candidates:

• add capacity
• allow booking until capacity is reached
• show remaining seats
• close booking once full
• optionally waitlist others

Example:

• Session capacity: 6 candidates
• Currently booked: 4
• Remaining: 2

6) Add a scheduling workflow

A good workflow often looks like this:

1. Recruiter creates interview type
2. Adds required interviewers and optional participants
3. Sets duration, location, timezone, buffers, and capacity
4. App computes available slots
5. Candidate selects a slot
6. App confirms booking and sends calendar invites

For internal scheduling, you may instead let coordinators manually pick a slot after seeing conflicts.

7) Use calendars and conflict detection

Integrate with Google Calendar, Microsoft Outlook, or CalDAV if possible.

You’ll need:

• free/busy lookup
• event creation and updates
• webhook sync for changes
• conflict re-check before final confirmation

Always revalidate before booking because availability can change between selection and confirmation.

8) Support rescheduling and cancellation for groups

Group interviews are more fragile than one-on-one interviews, so make this robust:

• notify all participants
• allow partial reschedule if optional attendees drop
• if a required interviewer cancels, either:
  • find replacement interviewer
  • offer new slots
  • auto-cancel and rebook

Track:

• session status: draft, proposed, confirmed, completed, cancelled
• attendee RSVP status: invited, accepted, declined, tentative

9) Notifications and reminders

Send reminders to all relevant participants:

• email
• SMS or push
• calendar invite updates

For group interviews, include:

• agenda
• panel names and roles
• meeting link / location
• timezone
• joining instructions
• who to contact if running late

10) Support time zones carefully

This is especially important when multiple interviewers are in different regions.

Best practices:

• store all times in UTC
• display in user local timezone
• include timezone in invite details
• let admins set the “official” interview timezone

11) Consider interviewer fairness and load balancing

If the app auto-schedules interviewers, add logic to:

• distribute interviews evenly
• avoid overbooking senior staff
• respect lunch/breaks
• enforce daily maximums

This improves adoption in larger organizations.

12) Make the UI group-friendly

Helpful UI features:

• show attendee availability overlays
• color-code required vs optional participants
• show conflicts clearly
• show capacity for candidate group sessions
• allow drag-and-drop slot selection
• display the “why” behind unavailable slots

13) Example data model

A simple structure could look like:

• InterviewTemplate
  • id, name, duration, capacity, rules
• InterviewSession
  • template_id, start_time, end_time, timezone, status
• SessionParticipant
  • session_id, user_id, role, required, RSVP_status
• AvailabilityRule
  • user_id, weekday, start_time, end_time
• CalendarEvent
  • external_provider, external_id, sync_status

14) Edge cases to plan for

• interviewer conflict appears after tentative booking
• candidate books the last seat in a group interview
• one required interviewer is in a different timezone
• daylight saving time changes
• recurring interview panels
• fallback interviewer assignment
• partial attendance vs required quorum

15) Recommended approach

If you want a practical implementation path:

1. Model interview sessions with roles and required/optional attendees
2. Integrate free/busy calendar sync
3. Compute overlapping availability for required attendees
4. Add capacity support for candidate groups
5. Build confirmation, notification, and rescheduling flows

If you want, I can also provide:

• a database schema
• API endpoints
• availability-matching algorithm
• or a React UI design for group interviews.