jesrae.dev
CUSTOM SOFTWARE DEVELOPMENT · BUILT WITH AI
From paperwork
to software.
Custom software development and AI app development for small businesses across the US and Canada. I build business software for independent, brick-and-mortar businesses — using AI to move fast, and designing every app together with the people who’ll actually use it.
// THE PROBLEM
Your business runs on paper.
Your competitors won’t, for long.
If any of this sounds like a normal Tuesday, you already know the cost — you just haven’t put a number on it yet.
Closing time
You’re re-typing the same order into a notebook, a calculator, and a messaging app — three times for one sale — because nothing talks to anything else.
Inventory
You find out you’re out of stock when a customer is standing in front of you, not before — because the count lives in your head, not a system.
Month-end
Reconciling the week takes a full evening with a calculator and a stack of receipts — time that should’ve gone to your business, or home.
Off-the-shelf software wasn’t built for how your shop actually works. Custom small business software — built for your workflow, not a generic template — is exactly the gap I build for.
// WHAT MANUAL WORK ACTUALLY COSTS
It’s not just time.
It’s a ceiling on how big you can grow.
Every hour you spend re-entering data by hand is an hour you didn’t spend on customers, quality, or opening that second location. Manual systems don’t just cost time — they cap how fast you can take on more business without things breaking. Business process automation closes that gap.
~5–10
hours a week commonly lost to manual data entry and reconciliation in small operations.
1
typo in a hand-written order is enough to lose a customer’s trust, or the order itself.
0
generic apps built specifically for how your shop runs — until now.
// HOW IT WORKS
No tech jargon. No 6-month timelines.
Just your shop, built into software.
01
We talk about your shop
One conversation, no sales pitch. You tell me what’s slow, what’s manual, and what a good day actually looks like for you.
02
We design it together
I propose exactly what the app should do — no extra features you’ll never use. You shape it until it fits your shop, not the other way around.
03
I build it fast, with AI
AI-assisted app development means working software in days or weeks, not months — at a price an independent shop can actually afford. This is what AI app development looks like when it’s guided by real business requirements, not a template.
// WHY THIS, WHY NOW
Custom software used to be out of reach. Not anymore.
Built for your shop, not every shop
Generic POS and inventory tools are built for the average business — which means they fit no one perfectly. Bespoke software gets built around how you actually operate, not a one-size-fits-all template.
AI-built means fast and affordable
I use AI to build at a speed that wasn’t possible a few years ago — which means custom software now fits a small-business budget and timeline.
You’re not just a client
We design it together, so you understand every part of it. It’s your app — built with you, not handed to you finished.
// ABOUT ME
Most app projects fail before a single line of code is written.
I’m Jesrae. Before I built software, I spent years as the person businesses relied on to understand the problem first — working as a Business Analyst, sitting between what a business actually needs and what gets built. My job was never to write the code. It was to make sure the right code got written, by asking the questions everyone else skipped.
That background means when we talk about your shop, I’m not guessing at what you need from the outside. I’m trained to dig into how a business actually runs — the workflow, the bottlenecks, the parts that don’t show up on paper — before a single screen gets designed.
Today, with AI, I do both halves myself: the understanding and the build. That combination — business analysis discipline plus AI-assisted development — is what lets a one-person studio work as both your custom software developer and your business analyst, delivering something that would normally take a whole agency.
If you have an idea, a broken process, or a business that needs a smarter system behind it — let’s start with a conversation. No pitch, no pressure. Just tell me what you’re trying to solve.
// THE RESEARCH
What the data actually says about AI-built software
I’d rather show you the honest research than a marketing claim. AI speeds up development significantly — but only when it’s guided by someone who knows what they’re building and why. That’s the part most “AI app” services skip.
55.8% faster
In a controlled GitHub and Microsoft study, developers using AI coding assistance completed tasks 55.8% faster — and were 78% more likely to complete them successfully.
30–75%
Industry-wide developer surveys report time savings in this range on coding, debugging, and documentation when AI tools are used well.
The catch
Other research (METR, GitClear) found AI can backfire without real oversight — more rework, more discarded code, when no one’s steering with real requirements discipline. That’s the gap a Business-Analyst-trained builder closes.
Sources: GitHub/Microsoft controlled developer study · Stack Overflow 2025 Developer Survey · METR randomized controlled trial · GitClear code quality research
// FREQUENTLY ASKED QUESTIONS
Common questions about custom software and AI app development
What does Jesrae Dev do?
Jesrae Dev builds custom software and AI-powered business applications for independent and small brick-and-mortar businesses across the US and Canada — replacing manual paperwork with fast, affordable, purpose-built apps.
How is AI-assisted app development faster than traditional custom software development?
AI-assisted development uses AI coding tools to accelerate the build phase, while a human — me — handles requirements, design, and quality review. That combination of AI speed and business-analyst-level oversight means projects ship in days or weeks instead of months.
How much does custom business software cost?
Cost varies by scope, but AI-assisted development significantly lowers the cost of custom software compared to traditional agencies — making it realistic for small and independent businesses. Email contact@jesrae.dev with a description of your business for a specific estimate.
What kind of businesses does Jesrae Dev work with?
Jesrae Dev specializes in underserved brick-and-mortar businesses — restaurants, shops, and service businesses — that rely on manual processes like paper order tracking, spreadsheets, or disconnected tools.
How do I get started?
Email contact@jesrae.dev describing how your business currently runs. You’ll get a reply outlining what a custom app for your business could look like — no obligation.
Stop running your business on paper.
Send me one email describing how your shop runs today. I’ll reply with how an app for it could actually look — no obligation, no jargon.
Usually replies within 1–2 business days.