Nexrizen · Proof of Concept

See it working before you fund it — seven days, $2,500.

On one call we pick the feature your product lives or dies on. Seven days later it is deployed and running on your data — real code in your repo, not a demo. If it misses the spec you signed off on, you pay nothing and keep the code anyway.

$2,500 fixed, no change orders 7 days idea to deployed code $1,250 back if you build with us

Start My Proof of Concept Works or it is free. You keep the code either way.

"His talent as a remarkable software developer enabled us to take our platform to a level that would take most dev shops months to complete. Gabriel Perez is a true hidden gem!"

Kevin Malley

CEO, GyftGram (Techstars '24)

"Gabriel has been an incredible asset. Having his level of talent on a fractional basis has been an absolute game changer for us."

Helaine Knapp

Founder & CEO, CITYROW (acquired by WaterRower)

"His approach to integrating cutting-edge solutions has been fundamental in improving operational efficiency."

Josue Roman

COO, ABACROP

WHY IT WORKS

Proof Before You Commit

7 Days

To working proof of concept

50+

Apps shipped

$2,500

Half credited to your build

100%

Code ownership

HOW IT WORKS

Three Steps. Your Risk, Reversed.

The proof of concept is $2,500, and half of it credits toward your build. Miss what we agreed, and you get it back — code included.

Discovery Call

30 minutes to pin down the one feature that matters most — and agree, in writing, on what your proof of concept has to do. No pitch, no pressure.

Free · 30 minutes

Discovery Call 30 min

What's the one feature that would change everything for your business?

I need an AI intake system that qualifies leads 24/7...

You

We'll build that as your proof of concept. Here's the plan...

Build plan created · Next: your 7-day proof of concept

your-prototype.nexrizen.dev LIVE

1 export async function buildPrototype(spec) {

2 const app = await deploy(spec)

3 return { demo: app, cost: 1_000, credited: true }

4 }

Deployed | 3 files changed Day 3 of 3

Working Proof of Concept

We build that one feature—real code, deployed, testable. You see it work before you commit to the full build. $2,500, half credited to your project.

$2,500 · 7 days · half credited

Your MVP

Love it? We finish the MVP—auth, database, responsive design, docs. Full source and deployment included, with $1,250 credited toward the total.

Monthly retainer · 1–2 weeks

Your App — Production All systems go

99.9%

Uptime

+340%

Throughput

0.8s

Response

Why Most Software Projects Fail Before They Start

"I've been quoted $50K+ just to get started"

We prove we can build it—for $2,500, half credited to your build. No $50K deposit. No months of discovery. A working proof of concept in 7 days, then a launch-ready MVP for a fraction of agency pricing. Miss what we agreed, and the $2,500 comes back.

"How do I know you can actually build what I need?"

You don't have to trust a pitch deck. We build a working feature of your product and hand it to you—real code, real functionality. That's your proof. And if it doesn't do what we agreed, it's on us, not you.

"I've been burned by developers who missed deadlines"

50+ apps shipped by ex-Meta engineers and PhDs. We set a 7-day deadline for your proof of concept and hit it—our reputation, and your refund, depend on it.

"I don't want to be locked into a vendor forever"

You own everything—code, servers, data—from the proof of concept onward. No licensing fees, no proprietary frameworks. Your team, or any developer, can pick it up and keep building.

See it work before you commit. That's the whole idea.

The Works-or-It's-Free Guarantee

This is working code, not a specification — if what you need is the whole thing scoped and priced, that's the Discovery Sprint. We agree on what your proof of concept must do before we write a line of code. Hit it, and $1,250 credits to your build if you start within 90 days. Miss it, and we refund every dollar—you keep the code either way. Here's what we'll never do:

Send you a slideshow and call it a proof of concept

Use no-code tools that break when you need to scale

Build something only we can maintain

Nickel-and-dime you with hidden fees after delivery

You own 100% of the code from day one. No licensing, no lock-in, no strings — and if the proof of concept misses the mark we agreed on, your $2,500 comes back.

Three ways to start. Each one ends with something you keep.

You do not need to know which service you want. Find the situation you are actually in — then check you are not ruled out underneath it.

Proof of Concept

Find out whether it works before you fund it.

This is you ifYou know what you want built, and you want to watch a real piece of it run before you commit the budget.

A working feature in your repo, live on your data, inside a week.
A real answer to “can this actually work here” for $2,500, instead of a six-figure guess.
The code, whether or not you take it any further with us.

Price: $2,500
Time: 7 days
Credited to your build: $1,250 back if you build within 90 days

Not you if

Nobody internally agrees on what to build yet. AI Blueprint →
The build behind this is already six figures and unspecified — one working feature will not de-risk it. Discovery Sprint →

See the Proof of Concept

AI Blueprint

Spend the budget on the thing that pays it back.

This is you ifSomething is clearly costing you time or money, and nobody can tell you which fix is worth making first.

Three to five opportunities ranked by what each returns, with the arithmetic behind the ranking.
An ROI model you can defend to your board, and use with any team — not only ours.
Permission to not build: when the answer is fix the process first, we say so.

Price: $5,000
Time: 2-4 weeks
Credited to your build: $2,500 back if you go ahead within 90 days

Not you if

You already know which single process to fix and only need it specified and priced. Discovery Sprint →
There is only one candidate on the table — ranking five of them is not worth $5,000.

See the AI Blueprint

Discovery Sprint

Know the real number before you sign for it.

This is you ifYou know the problem, and you are about to commit six figures to an estimate nobody has actually checked.

A clickable spec of the thing itself, so the argument about scope happens now and not in month three.
A price written by the engineer who would build it — at three budget levels, not one number.
The whole package to take to any firm, including one that is not us.

Price: $8,000
Time: 2 weeks
Credited to your build: $4,000 back if you build within 90 days

Not you if

You only want to see one idea work first. Proof of Concept →
The build behind it is under roughly $55,000 — this is hard to justify. Email us, there is a smaller version that fits.

See the Discovery Sprint

"His exceptional ability to lead development teams and direct technological innovation projects has transformed our platform."

Josue Roman

COO, ABACROP

Your Idea Could Be Running in 7 Days

Tell us what you want to build. We'll put a working proof of concept in your hands within 7 days—and put $1,250 of it straight into your build.

Start My Proof of Concept

$2,500 · half credited to your build · works or it's free. 50+ apps shipped by ex-Meta engineers.