About

The operator behind the tool.

SendMyAvailability is a product of Data Sales Science — founder-led, built by someone who has spent a career watching deals live and die on how fast you can get in the room.

A note from the founder

I've spent my career inside companies that had to grow — JoVE, Duo Security, FatStax, TRUiC — building the sales and revenue operations systems that actually move the number. Every one of those rooms taught me the same thing: time kills deals. The longer it takes to get in front of someone, the colder the opportunity gets.

Scheduling is where I watched the most momentum die. You finally get a prospect interested, and then you both burn a week trading "when works for you?" emails. The worst thing you can do to someone you want to meet is make them dig through your calendar.

So I built the tool I wanted for my own outbound — one that reads my real calendar, writes the email for me, and lets the other person book in a single click. No links to hunt through. No back-and-forth. You send your availability, and you get the meeting.

I'm not the founder with the original idea. I'm the operator who helps good ideas scale — and this is the system I use every day to do it.

Mark Shalinsky, PhD Founder, Data Sales Science
The track record

Startup operating experience, not theory.

Hands-on across startup sales, sales operations, revenue operations, and the workflow systems that hold them together.

What this is built on

Operator principles, baked into the product.

Time kills deals

Every feature exists to shrink the gap between "let's meet" and a slot on the calendar.

Make the first move

Outbound beats waiting. You reach out, personally, at volume — without sounding like a robot.

Remove the friction

The person you want to meet should do almost nothing. They just say yes.

Off the clock

"I don't know quit."

Mark wrestled competitively from 15 to 25, training alongside Olympic- and world-level athletes through the Montreal Wrestling Club, then moved into judo, Brazilian jiu-jitsu, and a decade of CrossFit. Discipline, resilience, pressure, execution — the same things that build a revenue system.

Come make the first move.

Put SendMyAvailability to work and feel the difference of reaching out first.