MVP Build
From idea to launched product.
- Starting at
- $4,900
- Typical timeline
- 6-8 weeks
- Scoping
- UI
- Web app
- API
- Deployment
PhilippinesNow booking new projects
Freelance software engineer for startup founders
I BUILD
MVPs
THAT SHIP.
I take your product from idea to launch, fast and without cutting corners. Web apps, mobile apps, and admin dashboards, built end to end by one engineer.
Free · 15 minutes · No commitment
15Projects built
4Live in production
2+Years of client work
HOW EVERY PROJECT RUNSFROM IDEA
TO PRODUCTION.
TO PRODUCTION.
ScopeBuildLaunch
Shipped & live
SERVICESWhat I build
What I build
for founders.
Mobile App + API
iOS and Android apps with a solid backend.
- Starting at
- $7,900
- Typical timeline
- 8-12 weeks
- React Native app
- Backend API
- Auth
- Payments
- Store release
Admin Dashboard
Internal tools that run your operations.
- Starting at
- $1,900
- Typical timeline
- 2-4 weeks
- CRUD
- Roles
- Reports
- CSV import/export
- Analytics
All prices are fixed and in USD. Not sure what you need? Book a free 15-min call and we’ll figure it out.
HOW IT WORKSFrom call
From call
to launch.
- Step 01
Free 15-min call
Tell me your idea. You leave with a rough scope, a realistic timeline, and a budget range.
- Step 02
Scope & fixed quote
I turn features and screens into a written scope with one fixed price. No hourly billing, no surprise invoices.
- Step 03
Build with demos
You see working software as it’s built, so feedback happens early instead of at the end.
- Step 04
Launch & handover
I ship it to production and hand over the code, deployments, and accounts, so you own all of it. Then I stay on for a month of free support.
SELECTED PROJECTSBuilt for
Built for
real users.
FEATURED MOBILE PRODUCTDelivery,
made simple.
made simple.
Book a courier, order food with LesEat, shop with LesBuy, and pay with your LesPay wallet, all from one app.
Courier bookingFood & groceryLesPay wallet
▶GET IT ONGoogle Play
View case study
ChallengeGive customers a fast, accessible way to request courier services from their current location.
SolutionOne home screen for courier booking, food and grocery delivery, order messages, and wallet payments.
ExperienceLocation-aware home screen, prominent booking action, approachable courier branding, and quick access to essential tasks.
FeaturesCourier booking, LesEat food delivery, LesBuy grocery shopping, order inbox, LesPay wallet, current-location pickup, and offers.
02 / SUSTAINABLE INDUSTRYView case study
ChallengeCommunicate a highly technical sustainable-material innovation to customers, partners, and industry stakeholders.
SolutionA clear product-focused website connecting environmental impact with practical industrial applications.
ExperienceStrong product storytelling, Filipino engineering identity, and direct paths to product information and inquiries.
FeaturesProduct catalog, company story, news, contact options, and responsive navigation.
COMING SOON
View case study
ChallengeDigitize aviation paperwork without depending on connectivity.
SolutionA connected mobile and web SaaS with offline forms, signing, export, and centralized administration.
ArchitectureReact Native, Next.js, Supabase, Expo SQLite, and Turborepo.
FeaturesOffline sync, draft and completed forms, progress tracking, PDF export, templates, and RevenueCat subscriptions.
04 / GOVERNMENT GISView case study
ChallengeGive the accounting and engineering offices one shared, map-based view of parcels, buildings, and tax status.
SolutionA role-based web GIS where each tax declaration links to its parcel on an interactive satellite map of the municipality.
ArchitectureReact, Vite, and Leaflet on the front end; Node.js and Express with PostgreSQL and PostGIS, storing geometry in the PRS92 national grid.
FeaturesTax forms with paid and overdue tracking, parcel search, land cover and water layers, GeoJSON, KML, and Shapefile import with spatial validation, and audit logs.
05 / AI RECRUITMENTView case study
ChallengeHelp healthcare employers identify qualified clinical talent and fill roles faster.
SolutionA two-sided recruitment platform for employers and clinicians with AI-assisted candidate matching.
ArchitectureLaravel 12, PHP 8.2, Sanctum, Socialite, and Stripe.
FeaturesJob posting, candidate screening, hiring pipeline, applications, authentication, and subscriptions.
06 / SMART VENDINGView case study
ChallengePresent a specialized vending product clearly to businesses, public spaces, and high-traffic venues with different operational needs.
SolutionA responsive marketing experience that connects product benefits, machine options, company information, and a prominent order path.
ExperienceBrand-led blue and orange visuals, scannable sales messaging, clear navigation, and visible contact options for prospective customers.
FeaturesVending-machine overview, company and technology content, language selection, social and contact links, and an order call to action.
07 / COMMERCE OPERATIONSView case study
ChallengeBring daily selling activity, store management, fulfillment, inventory, and financial reporting into one operational view.
SolutionA modular back-office dashboard with date and batch filtering, clear business metrics, and dedicated workflows for every commerce function.
ExperienceA structured sidebar, focused reporting controls, scannable metric cards, and responsive tables make complex operations easier to monitor.
FeaturesSales reporting, order summaries, seller performance, finance, shipping, POS, store management, inventory, CRM, and timezone-aware analytics.
08 / LEARNING ADMINView case study
ChallengeGive administrators one clear view of learners, instructors, content, and assessment activity.
SolutionA centralized learning administration portal with management tools and visual performance reporting.
ArchitectureLaravel 12, PHP 8.2, Blade, Vite, and Tailwind CSS 4.
FeaturesStudent and teacher management, courses, subjects, modules, question bank, quizzes, analytics, weak-area tracking, and leaderboards.
Your MVP
could be next.
You’ve seen what I’ve shipped. Tell me what you’re building, and in 15 minutes we’ll know if I’m the right fit.
ABOUT
One engineer.
Start to finish.
I’m Carl Kelvin Manahan, a freelance software engineer from San Jose del Monte, Bulacan. I’ve built SaaS platforms, mobile apps, company websites, and internal tools for startups and businesses in the Philippines and Norway.
You work directly with me from the first call to launch day. No account managers, no hand-offs.
The stack behind your launch.
4projects with code on GitHubSee the code on GitHub ↗
Front-end engineering
Next.js · React.js · Vue.js
Back-end & APIs
Laravel · Node.js · Hono
Mobile development
React Native · Flutter
Data & infrastructure
Supabase · PostgreSQL · MySQL
AI-powered products
AI matching · chatbots · LLM integrations
Cloud & deployment
Vercel · Laravel Cloud
Professional experience
Software Engineer
Corestack Technologies · AI Development Agency
Building AI-powered software products across modern web, mobile, data, and cloud technologies.
Chief Executive Officer
GGH Software · Custom Software Development Company
Led company direction and custom software initiatives, combining technical execution with product and business leadership.
Education
College Education
Access Computer College
Senior High School — ICT
AMA Fairview
FAQQuestions
Questions
founders ask.
How much does an MVP cost?
Fixed prices start at $4,900 for an MVP, $7,900 for a mobile app with an API, and $1,900 for an admin dashboard. After scoping you get one fixed quote, so you know the full cost before any work starts.
How long does it take?
Typical timelines: an MVP build takes 6-8 weeks, a mobile app with an API 8-12 weeks, and an admin dashboard 2-4 weeks. You get a timeline for your project as part of the scope.
Who owns the code?
You do, 100%. At launch I hand over the source code, deployments, and accounts, so you’re never locked into working with me.
What happens after launch?
Every project includes one month of free post-launch support for bug fixes and small adjustments. If you want to keep building after that, we can agree on the next phase.
I only have an idea. Is that enough?
Yes. Scoping is part of the work: we turn the idea into features, screens, and a plan. You don’t need designs or technical specs to start.
Do you work with founders outside the Philippines?
Yes. I work remotely, and my work is live in the Philippines and Norway. We agree on overlapping hours for calls and keep everything else async.
What tech do you use?
Mostly Next.js and React for web, React Native for iOS and Android, and Laravel or Node.js with PostgreSQL or Supabase on the backend. I pick what fits your product, not what’s trendy.
Still have a question? Email me and I’ll reply within 24 hours.