Florida Department of Agriculture
Fertilizer Applicator, No. LF502750
Current through 2030. In Monroe County nobody puts fertilizer down for money without one, and the licence puts the liability for what goes on the ground in his name.
Field Operations
Florida Licensed Applicator No. LF502750
Photograph of Thomas MarmolField Operations
Thomas Marmol Writes The Software His Own Crews Run
He writes the software for the work he does. The fastest route through the day, the per-property checklist, the before and after photograph a job cannot close without. What gets built is decided on a job site, not in a meeting, because the person who hits the problem is the person who writes the code. He owns the invoice from the job to the bank, and when a customer goes quiet the collection call is his. Monroe County does not let anyone put fertilizer down for money without a state certification. Thomas Marmol holds it through 2030, and eight more besides.
“Most software for crews is written by somebody who has never stood in a yard at seven in the morning,” Thomas Marmol says. “You can tell. It asks for things nobody has time to give it.”
Key West, Florida, Record updated
The Record
Florida Department of Health
911 Public Safety Telecommunicator
May 2026. The state certification required to take emergency calls in Florida.
Certiport
Master Certification In Entrepreneurship
May 2023, through 2028. Awarded for the full Certiport business track, not a single exam.
Portrait
img/thomas‑marmol.jpg
img/thomas‑marmol.jpg
Thomas Marmol
Operations and Software · Key West, Florida
He runs the crews, builds the software for the work, and owns the invoice from the job to the bank.
github.com/Thomas-Marmollinkedin.com/in/thomasmarmol- Licensed and certified. Nine certifications from eight issuing bodies, two of them the State of Florida.
- High skill. Two iOS apps built end to end, in testing, written by the person who stands on the job site they are for.
- High risk. His name is on the licence and on the invoice. The collection call is his to make.
- Consistent. He finds the problem, builds the fix, then runs it again and again until the thing actually works.
What He Runs
The Money
He Owns The Invoice From The Job To The Bank
Invoicing, accounts receivable, and the collection call when a customer goes quiet.
The Crew
Job Sites, Routes And Who Is Standing On Them
He works the crews he schedules.
The Marketing
Writes The Copy, Builds The Page, Sets The Offer
Certified in it twice by Certiport, once at master level.
The Books
He Keeps The Numbers Clean As They Happen
Invoices, receivables and costs recorded on the day, not reconstructed in April. The year end is a report and not an argument.
The Software
GroundCrew · iOS and web
GroundCrew Finds The Fastest Route And Proves The Work
github.com/Thomas-Marmol/groundcrew
Built for an owner of two to twelve people who is on a truck, not at a desk. It sorts every stop into the fastest route, holds the checklist for each property, and will not let a job close without two photographs, before and after from the same spot. Screens run a demo route. Swift, SwiftUI, Firebase, Next.js.
Crew Talk · iOS
Crew Talk Says It Out Loud, Both Languages
github.com/Thomas-Marmol/crew-talk
A worker holds one button and says it in English or Spanish. The phone cleans the sentence, then says it back in the other one. Nobody takes a glove off.
The Sum
Two Apps Built End To End, Both In Testing
Neither was commissioned. Both exist because the person who has the problem can write the code. Source is private, the repositories below carry the screens.
The Record
Nine Certifications, Eight Issuing Bodies
Every one with the scan and the verification code. Two from the State of Florida.
Read it →Software
Two Apps Built End To End
GroundCrew finds the fastest route and proves the work. Crew Talk says it out loud, both languages.
Read it →Method & Evidence
Four Rules, Each With Its Count
Ninety-one operators counted. Forty rules kept. Every one carries the case against it.
Read it →