You will get Firebase or Node.js API development and backend fixes
Project details
# What you will get
Reliable backend fixes or feature development using Firebase, Node.js, or APIs.
## Best for
• Firebase issues (Auth, Firestore, Functions)
• REST or GraphQL API bugs
• Backend logic errors
• Database queries & performance
• Integrations and data flows
## Why work with me
I build and maintain backend systems for real SaaS products using Node.js, Express, Firebase, MongoDB, and MySQL. My recent work includes ClearHire, a production platform with structured APIs and real-time flows; LabFlow, a multi-tenant SaaS system with complex backend workflows; and ZTools, handling large-scale data and dynamic content generation across hundreds of pages.
## What I can help with
• API development & fixes
• Firebase (Auth, Firestore, Functions)
• Database design & queries
• Backend debugging
• Performance improvements
## What sets this project apart
• Production-ready solutions
• Clean and scalable backend logic
• Fast issue diagnosis
• Clear communication
Reliable backend fixes or feature development using Firebase, Node.js, or APIs.
## Best for
• Firebase issues (Auth, Firestore, Functions)
• REST or GraphQL API bugs
• Backend logic errors
• Database queries & performance
• Integrations and data flows
## Why work with me
I build and maintain backend systems for real SaaS products using Node.js, Express, Firebase, MongoDB, and MySQL. My recent work includes ClearHire, a production platform with structured APIs and real-time flows; LabFlow, a multi-tenant SaaS system with complex backend workflows; and ZTools, handling large-scale data and dynamic content generation across hundreds of pages.
## What I can help with
• API development & fixes
• Firebase (Auth, Firestore, Functions)
• Database design & queries
• Backend debugging
• Performance improvements
## What sets this project apart
• Production-ready solutions
• Clean and scalable backend logic
• Fast issue diagnosis
• Clear communication
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$49
|
Standard
$149
|
Advanced
$349
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 1 | 2 | 2 |
Number of Pages | 2 | 5 | 9 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
6 reviews
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AW
Albert W.
Apr 23, 2024
Senior MERN Full Stack developer(s) for SaaS app
Ahsan is the best of the best 👌
I couldn't recommend him more.
I couldn't recommend him more.
AW
Albert W.
Dec 8, 2023
Senior MERN Full Stack developer(s) for SaaS app
Ahsan is excellent.
Fluent in English and expert at what he does.
Fluent in English and expert at what he does.
AW
Albert W.
Dec 4, 2023
Senior MERN Full Stack developer for SaaS app
Ahsan is truly fantastic, he is a rare find!
Excellent to work with, excellent quality work also.
Looking forward to working again.
Excellent to work with, excellent quality work also.
Looking forward to working again.
MA
Muhammad A.
Sep 25, 2023
Ionic + Capacitor + Angular16 Project - IOS & Android App Release - Provide App APK & Testflight
Ahsan Mahmood has been an exceptional collaborator on our Ionic + Angular project. His technical expertise is top-notch. Throughout the project, Ahsan demonstrated an excellent work ethic, completing tasks ahead of schedule and exceeding all our expectations. His communication skills were equally impressive, making it easy for our team to stay on the same page. Undoubtedly, Ahsan is a dedicated and highly skilled developer who brings knowledge to any project. I wholeheartedly recommend him at 100% for any development tasks and look forward to our future collaborations.
MA
Muhammad A.
Sep 25, 2023
Flutter App Release to Apple App store & Testflight Release
Ahsan Mahmood has Exceptional expertise in Flutter App Development. He Delivered a high-quality app on schedule, meeting all of our expectations—an outstanding freelancer who combines technical skills with excellent communication. I wholeheartedly recommend him at 100% for any project. A true asset!
About Ahsan
Full Stack SaaS Developer | React TypeScript Firebase Node.js GraphQL
Lahore, Pakistan - 3:44 pm local time
I help founders and product teams ship React + Firebase + Node.js products faster, with production-ready architecture, clean UI, scalable data flows, and reliable releases.
Over the last 8+ years, I’ve built and shipped SaaS products, cross-platform mobile apps, browser extensions, and product ecosystems using React, TypeScript, Firebase, Node.js, Express, GraphQL, Capacitor, TailwindCSS, and Radix UI. My work focuses on real product delivery: fast interfaces, maintainable code, secure backend logic, and features that are ready for users, not just demos.
What I can help you with:
- SaaS web app development
- React frontend architecture and feature delivery
- Firebase backend, Firestore modeling, Cloud Functions, Auth, and analytics
- Node.js / Express APIs and GraphQL integrations
- Capacitor-based Android and iOS apps using React
- Browser extensions, including Manifest V3
- Product maintenance, scaling, bug fixing, and release support
Recent work includes:
- Perkforce — multi-tenant SaaS with web, Android/iOS, Slack, and Microsoft Teams integrations
Video Controls Plus — cross-browser productivity extension built with React, TypeScript, Firebase, Radix UI, and Manifest V3
- ZTools — 484-tool digital toolbox across web, Android, and browser extension, with 507 generated SEO pages in the latest verified build
- ClearHire — resume builder and verified-employment platform with 100 passing tests and 102 SEO-backed public routes in the latest verified state
- Files Hub — multi-tenant file platform with browser extension and TypeScript SDK, including 50 passing SDK tests in the current verified state
Clients hire me when they need someone who can understand product goals, work independently, communicate clearly, and ship production-ready features without constant hand-holding.
I’m available for both part-time and full-time work, and I’m especially interested in long-term product-focused collaborations.
Steps for completing your project
After purchasing the project, send requirements so Ahsan can start the project.
Delivery time starts when Ahsan receives requirements from you.
Ahsan works on your project following the steps below.
Revisions may occur after the delivery date.
Review requirements
I review your backend issue, API details, Firebase setup, and expected outcome to confirm scope, dependencies, and best approach.
Analyze backend / APIs
I inspect your Node.js code, Firebase services, database structure, and API endpoints to identify root causes or define implementation steps.