You will get Invoice management system (Saas) with quotations, payments reporting etc
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Project details
Project summary
Build a **smart, all-in-one invoicing & quotation system** — a hybrid mobile app (iOS + Android) that lets small businesses create, send, track, and get paid for **invoices, quotes, and receipts** — all from their phone. No more spreadsheets or paper chaos.
Unlike generic tools, this app is **fully customizable**: add your logo, tax rules, payment terms, and client-specific discounts. Clients receive **beautiful PDF invoices via email/WhatsApp**, tap to **pay instantly** (Stripe/PayPal), and get **auto-reminders** for overdue payments.
**Key Features**:
• Create/edit/send **invoices, quotes, receipts** in <60 sec
• Real-time **payment status** (Paid/Pending/Overdue)
• **PDF export** with branding + digital signatures
• **Multi-currency & tax support** (VAT, GST, etc.)
• **Client portal** (view history, download PDFs)
• Sync across devices via **Firebase**
**Why me?** 6+ years in React Native/Flutter, 40+ fintech apps delivered. I’ll build it **fast, secure, and offline-ready** — with full source code and 30-day support.
Let’s turn your billing into a revenue engine.
Build a **smart, all-in-one invoicing & quotation system** — a hybrid mobile app (iOS + Android) that lets small businesses create, send, track, and get paid for **invoices, quotes, and receipts** — all from their phone. No more spreadsheets or paper chaos.
Unlike generic tools, this app is **fully customizable**: add your logo, tax rules, payment terms, and client-specific discounts. Clients receive **beautiful PDF invoices via email/WhatsApp**, tap to **pay instantly** (Stripe/PayPal), and get **auto-reminders** for overdue payments.
**Key Features**:
• Create/edit/send **invoices, quotes, receipts** in <60 sec
• Real-time **payment status** (Paid/Pending/Overdue)
• **PDF export** with branding + digital signatures
• **Multi-currency & tax support** (VAT, GST, etc.)
• **Client portal** (view history, download PDFs)
• Sync across devices via **Firebase**
**Why me?** 6+ years in React Native/Flutter, 40+ fintech apps delivered. I’ll build it **fast, secure, and offline-ready** — with full source code and 30-day support.
Let’s turn your billing into a revenue engine.
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Security, W3C Markup Validation ServiceWhat's included
| Service Tiers |
Starter
$150
|
Standard
$1,300
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 7 days | 20 days | 30 days |
Number of Revisions | 2 | 5 | Unlimited |
Number of Pages | 4 | 12 | 20 |
Design Customization | - | ||
Content Upload | |||
Responsive Design | |||
Source Code |
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Daniel S.
Nov 3, 2025
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Delivery time of a working project was acceptable. Communication was good. The project still needs refactoring but I'm happy with what the work Kip did.
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Soukaina A.
Oct 3, 2025
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I am delighted to work with Kibet; he is professional, competent, fast, and very attentive to customer satisfaction. Wishing you great success in your projects
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Orr H.
Feb 24, 2025
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Amazing work, did everything that was requested and more. Super skilled, Reliable, going to make this long term.
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Marshal L.
May 27, 2024
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Libertad M.
Jan 16, 2024
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Kipchirchir responded to the job posting quickly, asked the right questions and got the job done. He exceeded my expectations and I recommend him! Nice work my friend - Greetings from Toronto.
About Kipchirchir
Full-Stack Laravel/React Engineer | I Build & Rescue SaaS Platforms
100%
Job Success
Nairobi, Kenya - 3:51 pm local time
I am a Senior Full-Stack Developer with 7+ years in Laravel, React, and Yii2. I deliver end-to-end: real-time React dashboards, secure Laravel APIs, payment integrations, and zero-downtime deployments.
Where I deliver the most value
- Multi-Tenant SaaS Platforms, I have built LMS, HRM, and quotation/invoicing systems with full tenant isolation (stancl/tenancy), role-based permissions, and subscription billing. This is my specialty, and few developers do it well.
- Laravel + React/Inertia.js Apps — Dynamic dashboards, real-time updates (Echo + React Query), REST APIs, Stripe/PayPal/M-Pesa integrations, PDF generation, mobile-first Tailwind UIs.
- Legacy PHP & Yii2 Rescue — Custom CRMs, HRM, and inventory systems. Migrations from raw PHP and Yii1 to modern Laravel/Yii2, with 60%+ performance gains on high-traffic apps.
Payment & Compliance Integrations — Stripe, PayPal, and M-Pesa (Safaricom Daraja). For East African clients, I handle Kenyan statutory compliance: PAYE, NSSF, SHIF, Housing Levy, and KRA-compliant payroll.
-Backend & DevOps — Sanctum/Passport authentication, queues, webhooks, MySQL optimization, Redis caching, Docker, AWS, Nginx, and CI/CD.
Tech Stack
- Frontend: React, Inertia.js, JavaScript (ES6+), Tailwind, Bootstrap
- Backend: Laravel, Yii2, PHP, CodeIgniter, Node.js
- Database: MySQL, MariaDB, PostgreSQL, Redis
- DevOps: Docker, AWS, Nginx, Git, CI/CD, Linux
Recent Work
- SaaS Quotation & Invoicing System (Laravel + React) — dynamic pricing, branded PDF quotes, client approval flows, Stripe integration.
- Multi-Tenant LMS (Laravel + React + AWS) — courses, quizzes, video streaming, serving 1,000+ users.
- HRM/Payroll System (Yii2 + MySQL) — leave management, timesheets, and statutory payroll for 200+ employees.
- Citizen Observatory Platform (Laravel) — a multi-county case-tracking platform with accessibility and internationalization support.
How I Work
Daily progress updates, clear timelines, clean and tested code, and Swagger API documentation. I maintain 95%+ client retention and zero-downtime launches.
Need a SaaS, LMS, CRM, or a legacy system rescued? Send me a message describing your project, and I willll reply within 24 hours with a custom plan and timeline.
Steps for completing your project
After purchasing the project, send requirements so Kipchirchir can start the project.
Delivery time starts when Kipchirchir receives requirements from you.
Kipchirchir works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Planning
Review all materials, schedule a 30-min kickoff call to clarify goals, create sitemap, user flows, and detailed project timeline with milestones.
Design & Feedback
Deliver high-fidelity mockups (desktop + mobile) in Figma. Client reviews and provides one round of consolidated feedback within 1 business days.