Build it. Rescue it. Get it shipped.
Web and mobile apps on React, Next.js and React Native. Rescues when a build stalls or a developer disappears. Migrations off platforms that don't want to let you go. Fixed prices, and you own everything at the end.
- 60+ projects shipped
- 90% of clients come back
- Fixed price, you own everything
Led by Douglas Maringa. You talk to the developer, not an account manager.

Software gets expensive when the last 20% refuses to ship.
That is usually where JetBuild gets involved.
When the build stalls
The product mostly exists but integrations, bugs or unfinished logic keep moving the launch date.
JetBuild takes over the codebase and gets it through production.
When production breaks the demo
Auth, payments, data or APIs worked during development and fail with real users.
We fix the systems behind the screens.
When mobile becomes the blocker
The web product exists, but iOS, Android or store review is stopping launch.
We take it through both stores.
When the platform becomes the limit
The prototype worked. The platform or architecture now blocks the business.
We migrate without throwing away the business.
Build the new product — or take over the one that got stuck.
Build
Turn the idea into production software.
- React / Next.js applications
- React Native mobile
- Payments and subscriptions
- Admin and backend systems
- AI integrations

Rescue
The product exists. It needs someone to finish it properly.
- Codebase takeover
- Broken workflows and integrations
- Stripe / webhooks / backend
- Production bugs
- App Store and Play Store release

Migrate
The prototype worked. Now you need infrastructure you own.
- Platform migration
- Data migration
- Business logic preservation
- Architecture rebuild
- Production deployment
Scale
Users arrived. The software needs to hold up.
- Performance optimization
- Backend reliability
- API architecture
- Technical debt
- Monitoring and observability

Selected work
Real products, real results.
Every project here is live, with paying users and measurable outcomes.
- 60+
- products shipped
- $30k+
- marketplace volume/mo
- GlampingHub
- 5,000+
- users in three months
- Huntr
- 40%
- trial → paid
- MondoFit
What founders say after
Straight talk, shipped on time, no surprises.



Fixed what our previous developer couldn't finish.
“We came to JetBuild with an app that had been stuck in development for months. They stepped in, cleaned up the database, fixed the workflows, and got us live. Straightforward communication the whole way through.”
Christopher Clemmons, National Dental Service
Fast, reliable, and actually understands Bubble at a deep level.
“JetBuild delivered exactly what we scoped, on time, with zero hand-holding needed. They understand Bubble at a production level, not just getting things to work, but building them properly.”
Brian Luerssen, Founder at DraftBit
Rescued our app after our first developer disappeared.
“Our first developer ghosted us halfway through the build. JetBuild picked up the project, restructured the database, and launched it in under 3 weeks. Should have started with them.”
Rachel Simmons, Founder at PivotOps
Built our entire booking system and payment flow from scratch.
“We needed a booking platform with Stripe payouts and role-based dashboards. JetBuild scoped it clearly, built it fast, and it worked on day one. No back and forth, no surprises.”
Marcus Webb, Co-Founder at GreenRoute Logistics
Why JetBuild
A product engineering studio that works the way a good developer should.
Direct access to the developer.
No account managers, no handoffs, no telephone game. You talk to the person writing the code, every single week.
We think in systems, not screenshots.
Architecture, data models and security come first. The pretty part is the last 5% — the boring parts are why it doesn't break.
A working build every week.
A staging link every Friday. You click through the real thing, not a slide deck.
Fixed price before we start.
One number, agreed in writing. No timesheets, no surprise invoices, no scope creep. The price changes only if you change the scope.
You own everything.
Repository, database, hosting, app store accounts — all in your name from day one. Documentation any developer can pick up.
How it works
Four steps from call to launch.
01
Scope
A 20-minute call. You describe the product or the problem. We ask the questions that change the price. Within two days you get a written scope, a number and a start date.
02
Build
A staging link every week. You click through the real thing, not a deck. Direct Slack or email access to the developer, not an account manager.
03
Test
Every feature gets tested against real user scenarios. Payments, auth, edge cases — the things that break at launch if nobody checks them now.
04
Launch
Live, monitored and everything in your name. Four weeks of bug fixes included. Documentation any developer can pick up.

Douglas Maringa
Founder & senior developer
Senior developer access without the agency relay.
When you work with JetBuild, you talk to the person writing the code. No account managers, no handoffs. That's why fixed prices are possible, and why most clients come back.
- 10+ years
- React and React Native
- 60+ products
- shipped to production
- 50+ rescues
- of stalled or broken builds
- 90%
- of clients come back
Questions founders ask first
Yes, and that is most of the inbox now. Send the repo or a login and within 48 hours you get a written verdict: fix it, finish it, or rebuild it, with a fixed price for each. You keep full ownership of the code either way.
Yes. Fifty-plus Bubble apps rescued so far: slow pages, workflows firing twice, missing privacy rules, half-finished builds. Rescues take one to two weeks, and when Bubble itself is the limit we move you to React and Supabase without losing a user.
Completely. The repository, database, hosting and app-store accounts are in your name from day one, with documentation any developer can pick up.
Fixed price, agreed in writing. Half to start and half at launch, or three milestones on larger projects. Wire, Wise or card.
JetBuild Studio LLC is US-registered and works with founders in the US, UK, Europe and Australia. Calls and weekly demos land in US mornings and the European day.
Bubble when you are validating and speed matters more than scale. React and Next.js when you are charging customers, raising money, or need mobile. We build on both, so the recommendation isn't a sales pitch.
Four weeks of bug fixes are included with every build. After that, a monthly retainer or a fixed quote for new features.