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MD Rifatul I.

Dhaka, Bangladesh

$11/hr
5.0
16 jobs

I build scalable backend systems, APIs, automation workflows, and AI-powered SaaS infrastructure using Laravel, Node.js, and modern cloud technologies. From webhook orchestration and queue systems to third-party integrations and intelligent automation pipelines, I help startups and growing businesses build backend systems that stay reliable under real production load. With 10+ years of software development experience, I specialize in designing systems that automate operations, connect multiple services, process high-volume events, and scale cleanly as products grow. ๐–๐‡๐€๐“ ๐ˆ ๐ƒ๐Ž ๐’๐š๐š๐’ ๐๐š๐œ๐ค๐ž๐ง๐ & ๐€๐๐ˆ ๐’๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ โ— Laravel, Node.js (NestJS, Express) backend architecture โ— Scalable REST APIs & secure backend systems โ— Queue systems, retries, idempotency, and fault-tolerant processing โ— Multi-tenant SaaS backend infrastructure โ— Event-driven systems and webhook processing ๐€๐๐ˆ ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง & ๐€๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง โ— Stripe, Twilio, Google APIs, Meta APIs โ— OAuth2 authentication & secure integrations โ— Workflow automation and business process automation โ— Multi-service data synchronization and API orchestration โ— CRM and operational automation systems ๐€๐ˆ-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐๐š๐œ๐ค๐ž๐ง๐ ๐–๐จ๐ซ๐ค๐Ÿ๐ฅ๐จ๐ฐ๐ฌ โ— AI-assisted workflow automation โ— OpenAI integrations and AI-powered backend features โ— OCR / image-to-text processing pipelines โ— AI summarization and intelligent data processing โ— Automation systems integrating AI models with business workflows ๐‚๐จ๐ฆ๐ฉ๐ฅ๐ž๐ฑ ๐๐š๐œ๐ค๐ž๐ง๐ ๐’๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ โ— Fintech workflows and transactional systems โ— ERP and OTA (booking platform) backend systems โ— Custom eCommerce backend architecture โ— Scalable webhook-driven event systems โ— High-volume asynchronous processing systems ๐‘๐„๐€๐‹ ๐๐‘๐Ž๐‰๐„๐‚๐“ ๐„๐—๐๐„๐‘๐ˆ๐„๐๐‚๐„ โ— Built webhook orchestration systems processing 1M+ events/month โ— Developed scalable API integration platforms with dynamic credentials โ— Built queue-based systems with retries and reliable event processing โ— Developed automation workflows reducing manual operations โ— Built backend systems for SaaS, fintech, eCommerce, and workflow platforms ๐’๐„๐‹๐„๐‚๐“๐„๐ƒ ๐๐‘๐Ž๐‰๐„๐‚๐“ ๐“๐˜๐๐„๐’ โ— Shopify Workflow Automation Platforms โ— AI-Powered Automation Systems โ— CRM & Lead Pipeline Automation โ— Fintech Rewards & Cashback Platforms โ— API Integration & Webhook Infrastructure โ— SaaS Backend Platforms โ— Custom Business Automation Tools ๐‡๐Ž๐– ๐ˆ ๐–๐Ž๐‘๐Š I approach projects as systems, not isolated features. โ— Analyze system flows, bottlenecks, and scalability requirements โ— Design clean backend architecture for long-term maintainability โ— Build reliable APIs, automations, and event-driven workflows โ— Focus on stability, performance, and operational reliability โ— Deliver solutions that scale with business growth ๐‚๐Ž๐‘๐„ ๐“๐„๐‚๐‡๐๐Ž๐‹๐Ž๐†๐ˆ๐„๐’ Backend: Laravel, Node.js, NestJS, Express.js, PHP, TypeScript, JavaScript Databases & Infrastructure: PostgreSQL, MySQL, Redis, MongoDB, Supabase Automation & AI: OpenAI, LangChain, n8n, AI workflows, OCR pipelines Integrations: Stripe, Twilio, Webhooks, OAuth2 APIs, Third-Party Services Cloud & DevOps: AWS, Docker, CI/CD, Git, Microservices Frontend (when needed): React.js, Next.js If you're building a SaaS platform, automation system, API-heavy product, or AI-integrated workflow, I can help you architect and build a reliable backend foundation that scales properly as your business grows.

  • API Integration
  • API Development
  • Laravel
  • Node.js
  • REST API
  • PostgreSQL
  • Supabase
  • JavaScript
  • TypeScript
  • NestJS
  • Stripe
  • OAuth
  • SaaS Development
  • AI Implementation
  • Web API
  • React
  • Next.js
  • PHP
  • Web Development
  • MongoDB
S.M. ATAUL KARIM R.

Dhaka, Bangladesh

$10/hr
4.8
70 jobs

I help startups, agencies, and businesses build secure, scalable, and high-performance web applications using modern technologies and AI-assisted development workflows. With strong experience in backend engineering, API development, cloud infrastructure, and frontend frameworks, I deliver clean, maintainable solutions that are fast, reliable, and production-ready. What I Can Help You With โœ… Custom Web Application Development โœ… REST API & GraphQL Development โœ… SaaS Platforms & Business Systems โœ… AI-Assisted Development & Automation โœ… Third-Party API Integrations โœ… Performance Optimization & Security Hardening โœ… Legacy System Upgrade & Modernization โœ… Cloud Deployment & DevOps Setup Backend & Web Technologies โ€ข Laravel, Django, Spring Boot, Yii2 โ€ข Express.js, NestJS โ€ข WordPress, Drupal, Magento โ€ข PHP, Python, Java, JavaScript, TypeScript โ€ข MySQL, PostgreSQL, MongoDB, Redis Frontend Development โ€ข React.js, Vue.js โ€ข Tailwind CSS, Bootstrap โ€ข Alpine.js, Livewire, HTMX Cloud & DevOps โ€ข AWS, GCP โ€ข Docker, Kubernetes โ€ข CI/CD Pipelines โ€ข Linux, Nginx, Apache API & Integrations โ€ข Stripe, PayPal โ€ข Twilio, Firebase โ€ข Slack, Zapier, Xero โ€ข REST APIs & GraphQL AI Development Workflow I actively use modern AI development tools to improve delivery speed, code quality, debugging, and architecture planning: โ€ข Cursor โ€ข Claude โ€ข ChatGPT โ€ข GitHub Copilot Why Clients Work With Me โœ” Clean, maintainable, scalable code โœ” Fast communication & reliable delivery โœ” Strong debugging and problem-solving skills โœ” Production-ready deployment experience โœ” Security-focused development approach โœ” Ability to work independently and take ownership Whether you need a custom platform, backend API, cloud deployment, or ongoing development support, I can help turn your ideas into reliable software solutions. Letโ€™s build something great together.

  • API Development
  • MySQL
  • PHP
  • Laravel
  • Python
  • Django
  • CakePHP
  • Yii
  • .htaccess File Creation
  • Ubuntu
  • Apache HTTP Server
  • Node.js
  • Java
  • Spring Boot
  • Flask
Shamim H.

Dhaka, Bangladesh

$30/hr
4.2
364 jobs

With over 14 years of experience, I specialize in transforming complex business requirements into scalable web applications that drive real revenue growth. My expertise spans full stack development, AI integration, and payment solutions, ensuring that every project I undertake is both innovative and robust. Core Expertise & Skills Backend Development 1. PHP: Developing robust applications since 2007 2. Laravel: Building enterprise-grade applications since 2012 3. Livewire: Real-time interfaces for modern web apps 5. API Development: RESTful services handling millions of requests 6. Database Design: MySQL optimization for high-traffic systems AI & Code Auditing 1. AI-driven code verification for enhanced accuracy 2. Comprehensive code reviews to ensure quality and security 3. Migrating legacy systems to AI-driven platforms for modern business needs Payment Solutions 1. Stripe / Stripe Connect: Certified expert with 50+ marketplace integrations since 2014 2. Payment Orchestration: Designing and implementing complex payment systems 3. E-commerce: Complete online store development and optimization Frontend & UI/UX 1. WordPress: Crafting dynamic websites since 2010 2. Modern CSS: Tailwind CSS, Bootstrap responsive design 3. Figma: Mastery in creating intuitive UI/UX designs 4. JavaScript: Dynamic interfaces and real-time functionality 6. Performance: Sub-3-second load times on complex applications MCP Experience 1. Figma, WordPress, Laravel: Mastery in creating and managing complex projects Additional Technologies 1. React.js, Python, Vue.js: Proficient in understanding and coding with AI assistance Data Analysis & Visualization 1. Analytical insights for data-driven decision making 3. Creating visualizations to simplify complex data sets Enterprise Integration 1. CRM Systems: Zoho CRM, custom business workflows 2. Marketing Automation: Email sequences, customer lifecycle management 3. Third-party APIs: Google services, social authentication, AI chatbots Cloud & DevOps 1. AWS & Digital Ocean: Scalable infrastructure deployment 2. Laravel Forge: Automated deployment and server management 3. Git/GitHub: Version control and collaborative development Professional Experience 1. Built 100+ web applications across various industries 3. Specialized in SaaS platforms and e-commerce solutions 4. Led development teams and mentored junior developers 4. Consulted for Fortune 500 companies and funded startups Key Achievements 1. Generated $50M+ in client revenue through platforms I've built 2. Maintained 99.99% uptime across all production applications 3. Improved client conversion rates by 30-50% consistently 4. Recognized by Stripe as integration methodology contributor 5. My Development Approach I focus on building solutions that scale with your business growth. Every project includes: 1. Future-proof architecture designed for expansion 2. Security best practices with PCI compliance when needed 3. Performance optimization for exceptional user experience 4. Comprehensive documentation for long-term maintainability Ideal Project Types 1. SaaS application development and migration 2. E-commerce platforms with complex requirements 3. Payment system integration and optimization 4. Custom web applications for growing businesses 5. API development and third-party integrations I work best with ambitious businesses ready to invest in quality solutions that drive measurable results. Ready to discuss your project? Let's build something exceptional together.

  • API
  • Google Analytics
  • MySQL
  • PHP
  • Laravel
  • Git
  • Twilio API
  • CodeIgniter
  • Magento
  • Intercom
  • Database Development
  • WordPress
  • Data Analysis
  • JavaScript
  • Stripe
  • Payment Gateway Integration
Mir Mosraki S.

Hakimpur, Bangladesh

$50/hr
5.0
320 jobs

โœ… Meta App Approvals โ€” Guaranteed. Or You Don't Pay. While others guess their way through Meta's review process, I've spent 10+ years engineering the systems behind it. I don't just get approvals. I build the products that need them. ๐Ÿ“Š The Numbers: ๐Ÿ† 260+ Projects Completed ๐Ÿ’ฐ $200K+ Earned on Upwork โญ Top Rated Plus | Top 3% Globally | 5-Star Rated ๐Ÿš€ 60+ Apps Approved in the last 6 Months ๐Ÿ” 400+ Permissions Secured ๐Ÿ› ๏ธ 30+ SaaS Products Built from scratch on Meta APIs Most freelancers submit your app with hope but I know exactly what Meta's reviewers want because I've been in this ecosystem since before most developers knew the API existed. ๐ŸŽฏ You bring the vision. I'll bring the build and the badge. ๐Ÿšซ Rejected by Meta? I fix that fast. If you're hitting the "Invalid Screencast" wall or stuck in an endless rejection loop, you're not alone and you're in the right place. I've rescued hundreds of clients from exactly this situation. I handle everything, I record the screencast myself, prepare the full submission, and manage direct communication with Meta's review team until you're approved. Most clients get the green light in 1โ€“10 business days. Meta & Social Platform Approvals: โœ… Meta App Reviews or API Permission Approvals Expert โœ… Facebook App Review Expert ( Facebook Pages & Instagram & Ads & Threads) API Permissions Approval for Advanced Access โœ… Facebook API permissions Approval Expert โœ… Instagram API Permissions Approval Expert โœ… Meta Marketing / Ads API Permissions Approval Expert โœ… Threads API Permissions Approval Expert โœ… Expert Facebook/Instagram/Telegram/WhatsApp Chatbot Developer โœ… Expert in API integration โœ… Expert Facebook API Developer โœ… Expert Instagram API Developer โœ… Facebook Tech Provider/ Access Verification Expert โœ… Facebook Business Account Verification Consultant โœ… Meta App Data Deletion Request Callback Implementation โœ… TikTok Marketing Developer App Approval Expert โœ… TikTok Developer API App Approval Expert โœ… Expert in Marketing Automation Software โœ… Expert in WordPress Plugin Development โœ… Worked with PHP Script and SaaS selling company Codecanyon, Jvzoo, Warrior+Plus. โญ Why clients come back: I don't hand you a checklist and disappear. I'm in the trenches with you โ€” writing, recording, submitting, and negotiating โ€” until Meta says yes. ๐—œ๐—ป๐˜€๐˜๐—ฎ๐—ด๐—ฟ๐—ฎ๐—บ ๐—”๐—ฃ๐—œ (๐—œ๐—ป๐˜€๐˜๐—ฎ๐—ด๐—ฟ๐—ฎ๐—บ ๐—•๐˜‚๐˜€๐—ถ๐—ป๐—ฒ๐˜€๐˜€ ๐—Ÿ๐—ผ๐—ด๐—ถ๐—ป) instagram_business_basic, instagram_business_manage_comments, instagram_business_manage_messages, instagram_business_manage_insights ๐—™๐—ฎ๐—ฐ๐—ฒ๐—ฏ๐—ผ๐—ผ๐—ธ ๐—”๐—ฃ๐—œ ๐—ฃ๐—ฒ๐—ฟ๐—บ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป๐˜€ pages_read_user_content, pages_manage_posts, pages_show_list, pages_manage_metadata, pages_user_locale, pages_user_gender, pages_manage_engagement, pages_messaging, read_insights, pages_read_engagement, pages_user_timezone, Business Asset User Profile Access ๐—œ๐—ป๐˜€๐˜๐—ฎ๐—ด๐—ฟ๐—ฎ๐—บ ๐—š๐—ฟ๐—ฎ๐—ฝ๐—ต ๐—”๐—ฃ๐—œ (๐—™๐—ฎ๐—ฐ๐—ฒ๐—ฏ๐—ผ๐—ผ๐—ธ ๐—Ÿ๐—ผ๐—ด๐—ถ๐—ป) instagram_basic, instagram_content_publish, instagram_manage_comments, instagram_manage_messages, instagram_manage_insights, Instagram Public Content Access, Human Agent, instagram_branded_content_ads_brand, instagram_branded_content_brand ๐— ๐—ฒ๐˜๐—ฎ ๐— ๐—ฎ๐—ฟ๐—ธ๐—ฒ๐˜๐—ถ๐—ป๐—ด / ๐—”๐—ฑ๐˜€ ๐—”๐—ฃ๐—œ business_management, ads_read, ads_management, pages_manage_ads, leads_retrieval, catalog_management ๐—ง๐—ต๐—ฟ๐—ฒ๐—ฎ๐—ฑ๐˜€ ๐—”๐—ฃ๐—œ threads_basic, threads_content_publish, threads_keyword_search, threads_manage_insights, threads_manage_mentions, threads_manage_replies, threads_read_replies ๐—ช๐—ต๐—ฎ๐˜๐˜€๐—”๐—ฝ๐—ฝ ๐—•๐˜‚๐˜€๐—ถ๐—ป๐—ฒ๐˜€๐˜€ ๐—”๐—ฃ๐—œ whatsapp_business_messaging, whatsapp_business_management ๐Ÿ› ๏ธ What I Do: I specialized in Meta API development and social media SaaS products โ€” from Facebook Graph, Marketing, and Messenger APIs to Instagram (Graph, Business), WhatsApp Business & Cloud API, Threads, Twitter/X v2, Pinterest, Reddit, Shopify, integrations. I also handle Webhook, IPN, and Cron Job setups end to end. SaaS Products I've Built: Instagram Comment & DM Automation, Facebook Ads Creation Portals, Social Media Posting Platforms, AI Chatbots powered by OpenAI & ChatGPT for Messenger and Instagram, CRM Dashboards, and Marketing Automation Software. I've worked with ChatPion, Stackposts, and ChatWoot. Any white-label social media tool โ€” I've seen it and can get it approved. โš™๏ธ Tech Stack: JavaScript (TypeScript,React,Next.js,Node.js, Express, Vue), Python, PHP (Laravel, CodeIgniter), MySQL, PostgreSQL,MongoDB,Redis,AWS,Git ๐Ÿ’ฌ What Clients Say: โญ "Mir was an absolute game-changer. Deep understanding of Meta's API ecosystem โ€” permissions, configurations, best practices. If you need a Meta API expert who is highly skilled and a pleasure to work with, Mir is the person to hire." โ€” Sheila, USA โญ "Best guy on Upwork for API development. We already hired him on another project." โ€” Marius, Romania โญ "His knowledge of FB and API integration is really deep and comprehensive. Very happy." โ€” Fabrizio, Italy โญ "Anything Meta app permission related, he'll fix it for you." โ€” Roy, USA

  • API Integration
  • API Development
  • Facebook Graph API
  • Instagram API
  • Facebook Messenger
  • Facebook Development
  • CodeIgniter
  • Chatbot Development
  • Social Media Account Integration
  • Laravel
  • Marketing Automation Software
  • Payment Gateway Integration
  • SaaS
  • Social Media Account Setup
  • Web Development
Rony M.

Dhaka, Bangladesh

$10/hr
5.0
29 jobs

I specialize in PHP/Laravel systems, WordPress development, and API integrations for businesses that require stable, scalable, and maintainable solutions. I help businesses build and optimize Laravel applications, WordPress systems, and API-driven platforms that are designed for performance, scalability, and long-term maintainability. My Focus On: โœ” Backend logic & system architecture โœ” Laravel application development โœ” WordPress custom development (beyond themes & page builders) โœ” API integrations & third-party services โœ” Database structure & optimization โœ” Automation & AI-powered workflows Whether youโ€™re building a SaaS platform, improving an existing Laravel system, or extending WordPress into a fully functional web application, my role is to ensure your system works efficiently, securely, and predictably. Typical projects I work on: โ€ข Custom Laravel web applications โ€ข Backend systems & admin dashboards โ€ข WordPress custom plugins & functionality โ€ข REST API integrations & development โ€ข Payment gateway & external service integrations โ€ข Database design & performance tuning โ€ข Business process automation I collaborate best with clients who value: โ€ข Clean, maintainable code โ€ข Logical system design โ€ข Long-term scalability โ€ข Clear communication & technical clarity If you are interested in my services, feel free to contact me. ๐–๐š๐ข๐ญ๐ข๐ง๐  ๐Ÿ๐จ๐ซ ๐ฒ๐จ๐ฎ๐ซ ๐ฉ๐ซ๐จ๐ฃ๐ž๐œ๐ญ๐ฌ -:) Best Regards Md Rony

  • API Integration
  • PHP
  • Laravel
  • WordPress
  • MySQL
  • RESTful API
  • Database Design
  • Payment Gateway
  • Ecommerce
  • SaaS Development
  • SaaS
  • Classified Ads Website
  • Classifieds Posting
  • Real Estate
  • AI Platform
Muhammad Mahbubur R.

Dhaka, Bangladesh

$15/hr
4.6
322 jobs

Full Stack Web Application Developer: Laravel, Livewire, Tall Stack,Yii2, Wordpress,Marketplace API (Amazon SP-API, eBay API, Walmart API, Shopify API), NodeJS, REACT, Angular JS -I am an active programmer since year 2010 - I prefer medium and big project Skills and Technologies I am familiar with: -PHP: this is my root scripting language I am using from start to end in many project -Laravel: I have over 4 yearsโ€™ experience in Laravel -Yii: I used both Yii version 1.1 & 2.0, I have over 5 yearsโ€™ experience in Yii framework. I used this framework in over 50 projects -Joomla: since 2011 I am using this CMS and I have wide range of experience on this CMS -Angular JS, Node.js, REACT, Nex JS, JQuery, JavaScript, CSS, HTML5,Bootstrap -MySQL: I used this Database Engines almost in my every dynamic web application I have the following Ecommerce Marketplace API integration experience 1. Amazon SP-API and MWS API 2. Walmat Marketplace API 3. eBay API 4. Shopify API 5. Etsy API 6. WooCommerce API 7. Tiktok API 8. Facebooka and Google API 9. Keepa API (amazon third party price tracker) -Data Scrapping: i have massive experience in Data scrapping with different Technology and approach - chrome extension -ERP: I am expert in this business application. In addition I have skill in developing inventory, HRM, payroll, web portal, healthcare and medical type application. Beside I am expert in developing customized Dropshipping tools with various suppliers including Lister, price and stock monitor. IDE, tools and version control system -GIT: I just love it and I used it in so many projects, itโ€™s really cool and helpful to manage my project -Dreamweaver, phpstorm,VS Code, Photoshop, pait.net, MySQL Navicat and many others IDE and tools I used Operating system and others - Linux and Windows, Apache, Tomcat, AWS I give my 100% focus on even small details of project and try to make it perfect. My goal is to make a project successfully by keeping high quality of work with fair price. I am very easy and flexible to work. Feedback from Upwork Clientsโ€™: "Muhammad is excellent! He helped me finish three PHP projects that work great for my e-commence business. With his help, my work becomes super easy and effective. He communicates and finishes projects at an unbelievable speed. I would highly recommend him to anyone who needs some perfect work to be done! I will keep working with him in the future." I AM THE ONE YOU ARE LOOKING FOR.

  • API Integration
  • MySQL
  • Joomla
  • PHP
  • Node.js
  • Web Development
  • Yii
  • Web Application
  • Laravel
  • jQuery
  • AngularJS
  • Amazon
  • Shopify
  • eBay API
  • Next.js

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