Ship the product you keep putting off.

I'm Kolten — a freelance software engineer. I design and build custom software for founders and small teams — web apps, mobile apps, internal tools, and AI features — then hand you something you actually own.

Book a free call30-min call · no pitch · usually reply same day

The kind of software I build

Field-service appsInternal dashboardsClient portalsiOS & Android appsLogistics & ops toolsAI-powered features
Book a call

Grab a time that works for you

Pick a slot straight from my calendar. You'll get a confirmation email and a calendar invite right away.

Trouble loading the calendar? Open the booking page in a new tab

How it works

Three steps. No drawn-out sales process.

  1. 1

    Book a call

    Pick a time below. We spend 30 minutes on what you're building, the constraints, and whether I'm the right fit.

  2. 2

    We scope it

    I send a short written proposal — fixed scope, timeline, and price. No surprises, no hourly billing games.

  3. 3

    I build & ship it

    You get regular preview links, code you own from day one, and a hand-off that doesn't leave you stranded.

Selected work

Recent builds — mobile apps, internal portals, and platforms shipped for founders and small teams.

Trusted Service Solutions preview

Trusted Service Solutions

Field app + portal

Field-service app for crews inspecting cell towers — capture photo evidence on site even with no signal, then sync to an internal portal shared by TSS and their clients.

FlutterOffline-firstSupabase
App StoreGoogle Play
Adam Labs preview

Adam Labs

Internal portal

Internal portal for a testing lab: sample intake, automated client report generation, and Stripe invoicing in one workflow.

Next.js 15TypeScriptTailwind CSSStripe
Live site
Lumost preview

Lumost

Logistics platform

The load board, the truck's live location, and the delivery paperwork in one place — so a farming shipment goes from booked to delivered without a single check-in call.

Next.js 15React Native / ExpoTypeScriptTailwind CSS 4
Launching on the app stores soon
Pupford preview

Pupford

App + store

The “30-Day Perfect Pup” training app paired with an online store for treats and gear — course delivery and commerce under one brand.

Next.js 15React NativeTypeScriptFirebase
App StoreGoogle Play
Kolten
About

Hi, I'm Kolten.

I've spent the last 5 years shipping software, working solo with founders and small teams. I do the design and the engineering, so there's no hand-off gap and no telephone game.

I work with a small number of clients at a time so the person you talk to on the call is the person writing the code.

  • 5+ years building for the web
  • Design + full-stack in one person
  • Fixed scope, fixed price — no hourly billing
  • You own the code and accounts from day one
FAQ

Questions people ask on the call

How long does it take?

A brand-new project usually takes about two months from kickoff to launch. Smaller builds and add-ons move faster. You'll get a real timeline in the proposal before anything starts.

Who owns the code?

You do — from day one. Everything lives in your GitHub, your hosting, and your accounts. No lock-in and nothing held hostage.

Do you do ongoing work?

Yes — some clients keep me on a light monthly retainer for changes and new features after launch. Entirely optional.

What if we're not a fit?

Then I'll say so on the call and point you somewhere better. The 30 minutes is free either way.

Book a call