🚀 Senior Full Stack Developer | SaaS, AI, CRM & Automation | 9+ Years Experience
Need a developer who can turn your idea into a reliable, scalable product — not just write code?
I’m a Senior Full Stack Developer with 9+ years of experience building and scaling SaaS platforms, AI-powered applications, CRMs, workflow automation systems, marketplaces, dashboards, and custom web applications.
I work with startups, agencies, and established businesses to build new products, improve existing applications, integrate third-party services, automate manual processes, and take projects from development to production.
💡 What I Can Build For You
✅ SaaS Applications — Multi-tenant platforms, subscriptions, user roles, billing, admin panels
✅ AI-Powered Applications — Google Gemini, Vertex AI, AI workflows, document processing, AI assistants
✅ CRM & Lead Management — Custom CRMs, pipelines, lead tracking, automation and reporting
✅ Business Automation — Replace repetitive manual processes with automated workflows
✅ API & System Integrations — REST APIs, webhooks, third-party platforms and custom integrations
✅ Real-Time Applications — WebSockets, notifications, live dashboards and messaging
✅ Admin Dashboards — Data-heavy dashboards, analytics, reporting and business tools
✅ Payment Systems — Stripe subscriptions, checkout, recurring payments and webhooks
✅ Custom Web Applications — Business-specific platforms built around your exact requirements
🛠️ My Core Technology Stack
Backend: Node.js, Express.js, PHP, Laravel, CodeIgniter 4
Frontend: React.js, Vue.js, Next.js, Tailwind CSS
Databases: MySQL, MongoDB, DynamoDB, Airtable
Cloud & Infrastructure: AWS, Google Cloud, Docker, Nginx
AI: Google Vertex AI, Gemini and AI-powered workflows
🔌 Integrations I’ve Worked With
Stripe • Twilio • Mailgun • SendGrid • Nylas • Zapier • HubSpot • Zoho CRM • GoHighLevel • ClickFunnels • REST APIs • Webhooks
⭐ Why Clients Work With Me
I don't just focus on completing individual tasks. I focus on building systems that are:
✔ Scalable — designed to handle future growth
✔ Maintainable — clean architecture and readable code
✔ Reliable — proper error handling, logging and testing
✔ Secure — authentication, authorization and data protection
✔ Business-focused — technology that actually solves the underlying problem
Whether you have a startup idea, an existing SaaS product that needs development, a CRM that needs customization, an AI feature you want to launch, or a manual business process you want to automate, I can help you design, build and deploy it.
Have a project in mind? Send me a message with what you're trying to build, and I'll help you figure out the best technical approach.
NodeJS Framework
ExpressJS
React
Vue.js
MongoDB
MySQL
PHP
CodeIgniter
Laravel
Zapier
Twilio
Twilio API
SendGrid
Mailgun
CRM Software
Amol K.
Pune, India
$15/hr
5.0
2 jobs
Full-Stack Developer | Backend Specialist | Automation Expert
I am a senior software developer with 12 years of experience and expertise in backend development, API design, automation, UI/UX, and WordPress website development. With a Masters in Computer Science and extensive experience in building scalable solutions, I specialize in:
✔ Backend Development: Node.js, Express, PHP (Laravel), SQL, NoSQL
✔ API Development & Integration: RESTful APIs, Webhooks, Authentication
✔ CRM & OMS Development: Custom CRM solutions, Order & Franchise Management Systems
✔ WordPress Development: Website creation, customization, and CRM integration
✔ Automation & Testing: Cypress, jQuery-based automation
✔ UI/UX Design: Wireframing, prototyping, and user-centered design principles
✔ WhatsApp & Business Automation: WhatsApp message sender backend
✔ Frontend Development (Basic): Angular, HTML, CSS, JavaScript, jQuery, Bootstrap
I have developed end-to-end Order Management Systems (OMS), Franchise Management Systems, CRM APIs, and WordPress websites tailored to business needs. I also built the backend for a WhatsApp messaging automation app and implemented Cypress tests to enhance system reliability.
I am committed to delivering efficient, secure, and user-friendly software solutions. Let’s connect to discuss how I can contribute to your project.
PHP
Laravel
Angular
Web Development
Web API
MySQL
User Experience
User Interface Design
UI/UX Prototyping
WordPress
WooCommerce
Shopify Development
Software Development
Manoj N.
Pune, India
$22/hr
4.9
208 jobs
- Certified in APIs of Fedex, UPS (SurePost, Quantum View), Purolator, USPS carriers
- GWO (Global Wind Organisation) Integration
- MercuryGate TMS Integration
- Webhook setup
- Dxf Automation
- Custom integration with LMS's like Canvas, Litmos, Absorb, Coassemble.
- Fulfillment and Shipping integration of Shopify and WMSs
- Detrack Integration
- SendInBlue Email setup
- Full stack custom web-apps
- API integration (REST/SOAP/oAuth2.0)
- Zebra/Dymo printing
- Data migration between systems. (CRMs, EDI)
Java
XSL
XML Web Services
AJAX
XPath
Yogesh K.
Pune, India
$20/hr
5.0
43 jobs
⚡ TOP-RATED PLUS ⚡ 2000+ HOURS WORKED ⚡ 100% SUCCESS RATE ⚡ AMAZON SELLER CENTRAL AUTOMATION EXPERT ⚡ AMAZON VENDOR CENTRAL AUTOMATION EXPERT ⚡ AMAZON SELLING PARTNER API (SP API) EXPERT
Full stack developer with strong experience in Java, JavaFX, Scala, Spring, Hibernate, and Spring boot.Professional and academic background in architecting and building Multi-Tenant Software as a Service.
Over the last 10 years, I have worked on a variety of projects including websites/Web applications(UI/UX), Enterprise applications, SAAS and Cloud, Microservices, and Mobile Applications.
My skill sets are:
* Languages:
Java, Scala, Node JS, SQL, C, CSS, HTML, JavaScript, PHP
* Frameworks
Scala, SpringBoot, Bootstrap, Hibernate, Hadoop, Spring, Angular, React
* Libraries/APIs Java Collections, jQuery UI, jQuery, JAX-RS, Google Gson, JavaMail, Amazon API, Selenium, HTMLUnit, Angular, React
* Databases:
- Relational: Mysql, PostgreSQL, Oracle, DB2;
- NoSQL: Redis, MongoDB;
I am enjoying working with small businesses and individual decision-makers to provide architectural and custom business solutions that help my clients resolve mission-critical problems, grow their businesses, and improve their revenue stream and profitability.
JavaFX
Java
AngularJS
Spring Boot
Node.js
Python
MySQL
MongoDB
PHP
Amazon Seller Central
Flutter
React
Amazon Web Services
Stripe API
AI Agent Development
Hamiduddin S.
Pune, India
$20/hr
4.8
22 jobs
I am Expert Web Application Developer using PHP Developer with around 10+ Years of Work experience.
My Specialization :
i) CRM application development (PHP) :
- Payment gateway Integration
- Commission Process.
- Follow-ups
- Integration with Email auto-responder (Aweber / GetResponse)
- Email delivery services (Sangrid, Mandrill, PostMark)
- API integration with any third party system.
- Amazon S3 server integration.
- System Reports generations.
- Integration any third party CRM (Zoho, Salesforce etc )
ii) Payment Gateway Integration :
- InfusionSoft
- Paypal.
- Authorize.net
Web Page Development :
i) CSS3 / HTML 5
ii) Angular JS
iii) Javascript / Jquery.
iv) We also Create web pages in Go High Level, Click Funnel, HubSpot .
Web Application Development in PHP :
i) Core PHP.
ii) E-commerce Applications.
iii) CMS Framework :
- Wordpress
- Sliverstripe (MVC + CMS)
- Magento (MVC + CMS)
iv) MVC Frameworks :
- Laravel *
- Codeigniter
- Cake PHP
- Zend Framework (1/2).
- Yii*, SIman, Nova
EXPERTISE IN
GIT
BitBucket
Payment Gateway
Rest API Integration
CMS Wordpress
Zoom
Google
Facebook & Instagram API’s
SMS & Mail Integration
LAMP/WAMP
C Panel Management
SSL Implementation
Domain Handling
FTP Management
We are Committed to Provide Highest Quality of Services.
Please feel free to message me if you need more information about Us.
WordPress
JavaScript
PHP
HTML5
CSS 3
AJAX
jQuery
MySQL
Bootstrap
CodeIgniter
Kunal F.
Pune, India
$45/hr
4.9
22 jobs
With 10+ years of experience in Salesforce, WordPress, Shopify, Magento, and more, I’ve been your go-to tech guru, turning daily hassles into smooth, one-click wonders! Whether it’s building custom software or integrating APIs like Salesforce, Google, or LinkedIn, I’ve got the skills to make tech work for you.
Domain Experience:
1. ERP inventory management
2. Education Management
3. Tourism
4. Education
5. B2B, E-commerce
6. Restaurant
7. Payment Integration
8. Real Estate
9. Home Builders.
Technology:
1. PHP, Java, AngularJS, JavaScript, JQuery
2. CodeIgniter
3. Zend Framework and more.
Hands-On Online Software:
1. GitHub
2. Heroku
3. AWS
4. Firebase
5. Bitbucke.
API Integrations: Salesforce Rest and Soap API, Google APIs, Facebook APIs, Instagram API, Linkedin API, Shopify Webhook, Rest APIs, Soap APIs, eBay, Google merchant, WordPress.
From ERP systems to e-commerce and real estate, I’ve tackled it all- making software as user-friendly as your morning coffee. Plus, I do it on a budget that won't break the bank. Let’s build something awesome together!
HTML5
Shopify
JavaScript
WordPress
MySQL Programming
CodeIgniter
PHP
WooCommerce
CSS 3
Salesforce CRM
Salesforce App Development
Apex
Salesforce Lightning
WordPress Plugin
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