Building AttendOnTime: My Startup Journey from Check-in Chaos to Event Platform
From check-in chaos to a real-time event and attendee management, seamless registration, and effortless check-in platform - AttendOnTime.
Building AttendOnTime: From Check-in Chaos to a Platform
I did not set out to build a startup. I was trying to fix a broken check-in process.
What started as a small attempt to remove friction at live events has grown into my first serious journey as a builder.
The idea did not come from brainstorming. It came from watching someone deal with a problem that should not exist.
For me, that someone was my wife.
She runs an event planning and coordination business. One recurring request from her clients was simple:
“Make sure only people who RSVP’d or paid are allowed in.”
Simple request. Painful execution.
The Problem I Saw Up Close
The workflow looked like this:
- Receive a PDF file with a list of attendees
- Convert it manually into Excel or Google Sheets
- Clean the data
- Print multiple copies
- Check-in people to an event using paper lists
It worked—but barely.
I remember watching guests arrive while organizers flipped through printed pages trying to find names. People were waiting. Pressure was building.
That moment made it clear:
This does not scale under real event conditions.
And it kept happening.
This was not just inefficient. It was a gap.
The Moment It Started
In October 2025, I was on vacation in Ocho Rios, Jamaica.
What was supposed to be a one-week trip turned into two and a half weeks—we got stuck due to Hurricane Melissa.
That unexpected time became the starting point.
I began building a proof of concept with one simple goal:
There has to be a better way to manage event attendees and check-ins.
That was the beginning of AttendOnTime.
What I Set Out to Build
At first, the goal was simple:
- Replace paper checklists
- Make attendee lookup fast
- Enable reliable check-in
But the deeper I went, the clearer it became:
Check-in is not the problem. Fragmentation is.
- Tickets in one place
- Attendees in another
- Check-in somewhere else
So the vision evolved:
A platform where event organizers can manage everything—from registration to check-in—in one place.
I made an early mistake trying to design a full “event operations suite” too soon.
The reset was simple: Focus on the check-in flow first. Make it solid. Expand from there.
Building Solo (and Building Right)
I am building this alone, alongside my full-time work as a backend engineer.
That forces discipline.
From a technical perspective, I chose a microservices architecture with a focus on real-time coordination and long-term scalability.
The stack reflects that:
- Spring Boot
- Kafka (event-driven architecture)
- gRPC for internal service communication
- PostgreSQL
- Valkey (Redis-compatible) for caching and real-time updates
- GraphQL
- AWS infrastructure
- Amazon SES for email delivery
- MaxMind GeoLite2 for geo-fenced check-in
Was this the fastest way to build an MVP? No. Was it intentional? Yes.
The challenge has been constant:
Build fast enough to learn, but solid enough to last.
Practical Lessons So Far
1. Real Problems Matter More Than Ideas
This started from observation, not theory.
2. Scope Expands Quickly
What looks like a tool can become a platform fast.
3. Solo Building Requires Clarity
You have to challenge your own assumptions.
4. Over-Engineering Is Always Nearby
Speed vs architecture is not a one-time decision—it is continuous.
Where Things Stand Today
The platform is live:
Today, AttendOnTime supports real-world event operations end to end.
Event Management
Organizers can create:
- In-person events (with location)
- Online events (Zoom, Meet, Teams)
- Hybrid events
Events can be:
- Public — open registration
- Private — invite-only
Ticketed events automatically convert payments into registrations—removing manual steps.
Events are fully customizable with branding, links, and configuration.
Team Coordination (Where It Gets Practical)
Execution teams can:
- Create and assign event tasks
- Group responsibilities by roles (Security, Setup, Helpers)
- Send role-based messages
- Track progress with reminders
This becomes critical in the final hours before an event—where most breakdowns happen.
Communication & Notifications
Organizers can send targeted updates to attendees based on:
- RSVP status
- Check-in status
Delivered via:
- Real-time in-app notifications
- Email (Amazon SES)
Attendee Check-in (Core Value)
Check-in is designed for real event pressure:
- Self check-in (optional geo-fencing)
- Staff-assisted check-in
- Real-time sync across all devices
- Live attendee stats
Ticket validation ensures only legitimate attendees gain access.
Payments & Subscriptions
Paid events are powered through Stripe:
- Payment links for ticket sales
- Automatic attendee association
- Webhook-based payment processing
- Ticket transfers and refunds
Organizations operate on subscription tiers, with event limits enforced automatically—no manual intervention required.
In Progress
- SMS notifications
What Comes Next
- July 2026 — complete full ticket lifecycle
- September 2026 — simplify onboarding
- December 2026 — onboard first 10 active organizer teams
The focus is shifting toward reliability, usability, and real event feedback.
Why I Am Sharing This
This is about more than building a product.
It is about:
- Seeing a problem clearly
- Taking action
- Staying consistent
If you are an event organizer, I hope this makes your life easier.
If you are a builder, I hope this encourages you to start.
I do not take this journey for granted. It has been a process of growth, discipline, and trusting the path as it unfolds.
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