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
14Projects 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 / 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.
05 / 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.
06 / SERVICE PLATFORMView case study
ChallengeLet travelers move freely before check-in or after checkout.
SolutionA booking experience for luggage pickup, storage, and delivery.
ArchitectureNext.js and TypeScript with Prisma-backed data flows.
FeaturesFast booking, QR access, live tracking, delivery windows, and support.
07 / IMMERSIVE EDTECHView case study
ChallengeMake STEAM lessons more interactive than traditional video-and-text learning.
SolutionAn LMS that blends course management with immersive browser-based 3D environments.
ArchitectureNext.js 16, React 19, TypeScript, Three.js, PostgreSQL, and Prisma.
FeaturesVR lessons, virtual lab and campus, quizzes, grades, achievements, notes, messaging, and an AI chatbot.
08 / 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.
09 / CAFÉ BRAND EXPERIENCEView case study
ChallengeCreate an inviting digital first impression that makes a neighborhood coffee brand feel refined, familiar, and easy to explore.
SolutionA focused one-page experience combining bold editorial messaging, warm neutral tones, a product-led hero, and direct navigation to key customer information.
ExperienceSerif typography, generous whitespace, and coffee-toned colors give the brand a calm, premium feel.
FeaturesResponsive navigation, menu discovery, brand story, customer reviews, contact section, conversion call to action, and social-proof metrics.
10 / 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.
11 / CAMPUS PLATFORMView case study
ChallengeMake campus lost-and-found reporting, matching, and claiming easier to manage.
SolutionA centralized system for submitting reports, reviewing matches, tracking claims, and receiving updates.
ArchitectureLaravel 12 and PHP 8.2.
FeaturesLost and found reports, AI-powered matching, claims, notifications, search, and status tracking.
12 / NSTP MANAGEMENTView case study
ChallengeBring NSTP enrollment, attendance, academic progress, and training records into one manageable system.
SolutionA role-based platform that gives administrators a real-time operational view of cadets and program activity.
ArchitectureReact 18, TypeScript, Vite, Tailwind CSS, and an ASP.NET Core C# API.
FeaturesEnrollment, student management, sections, courses, flights, QR attendance, grades, merits and demerits, exams, reports, and user management.
13 / NETWORK RESEARCHView case study
ChallengeEvaluate how centralized software-defined control compares with a traditional hierarchical LAN under the same network conditions.
SolutionA side-by-side experimental dashboard that makes architecture, connectivity, performance, and recovery results easier to examine.
ArchitectureMininet network emulation with an SDN architecture powered by the Ryu Controller, compared against a traditional LAN topology.
ResearchConnectivity tests, performance benchmarks, link-failure scenarios, and recovery analysis for A.Y. 2024–2025.
FINTECH MOBILE EXPERIENCELoans,
made clear.
made clear.
See what you owe, when it’s due, and pay in a few taps.
Balance breakdownPay in appCredit score
View case study
ChallengeHelp borrowers understand principal, interest, total balance, due dates, and transaction status without digging through complex account screens.
SolutionA focused mobile dashboard that centralizes loan details and places application, payment, and credit-score actions within immediate reach.
ExperienceA dark high-contrast interface with prominent balance summaries, clear status colors, shortcut actions, and readable financial breakdowns.
FeaturesLoan balance breakdown, due-date tracking, application and payment access, credit-score visibility, notifications, profile access, and recent transactions.
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.
6projects 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.