I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 14+ years of experience in Custom VoIP Software Development. I have provided a wide range of IT solutions, including VoIP Development, Websites & Mobile Apps development for international businesses and start-up companies as well as for large enterprises. 🏆 Following are my area of experiences: ✓ VoIP / SIP / RTP ✓ OpenSIPs / Kamailio / OpenSER ✓ FreeSWITCH, FusionPBX, ASTPP, Lua Scripts ✓ Asterisk, FreePBX, A2billing ✓ RTPengine / MediaProxy / RTPproxy ✓ Twilio ✓ Linux & OpenSource Consulting ✓ MariaDB, MySQL, PostgreSQL (Database design & complex SQL query expert) ✓ PHP, Yii/Yii2, Apache, Nginx ✓ Android 🏆 I provide the following solutions: ✓ High scalable Least Cost Routing(LCR) with Fail-Over ✓ Session Border Controller(SBC) ✓ Click to call ✓ Class4 & Class5 Soft Switches ✓ SIP Proxy Server, SIP Load Balance & Fail-Over ✓ SIP Messaging Server, SIP Redirect Server ✓ IVR Application ✓ Fax over IP (FoIP), T38 Supported FAX Server, FAX to Email ✓ Shoutcast Server ✓ WebRTC SIP client ✓ PHP RESTfull API, Web Services for Mobile Application ✓ Web Applications ✓ Mobile Applications. My core competency lies in complete end-to-end IT solutions for VoIP, Web, and Mobile technologies. 👤 Reviews & feedback given by clients for successfully completion of largest projects ⭐⭐⭐⭐⭐ "Malay is an excellent VoIP expert and was able to do any task we could throw at him. Will be using his services again shortly as our go-to VoIP expert." ⭐⭐⭐⭐⭐ "Excellent at meeting deadlines. Outstanding at changing work hours to conform to my requirements. First-rate productivity levels. Extremely good communication and ability to explain and brainstorm in a group environment. Admirable at working with other random developers I brought into the project throughout the years. Malay and his team at Prayantech were able to tackle any task I through at them from Asterisks, FreeSwitch, Python PHP HTML JS Debian RHEL IP Tables working inside of multiple different cloud hosting environments his understanding of VPN and firewall security are excellent. I can’t say enough good things about this group I am certain we will be working together as a team for many years to come." ⭐⭐⭐⭐⭐ "Malay and his team were great to work with. Once we got in a flow, we were able to bring something to life I could not have done without him and his team. He was extremely aware of timelines and making time for our project during our "open hours" and working around the time change. Thank you Malay! Keep up the great work and I look forward to working with you soon!" ⭐⭐⭐⭐⭐ "It was a pleasure working with Malay. Very professional and to the point. they don't waste time and they want to finish your project as much as you want to."

I build and maintain complex SaaS platforms for the cybersecurity industry — from API architecture and backend systems to frontend interfaces, containerized infrastructure, and cloud deployments on AWS. For the past 6 years, I have been the lead developer of a security awareness training platform used by organizations across multiple industries to defend against phishing, social engineering, and AI-generated threats. My core responsibilities include: • Designing and building RESTful API using PHP and the Laminas framework • Developing Vue.js 3 frontend integrated with PHP legacy systems • Managing asynchronous workloads through RabbitMQ message queues • Operating dual database architecture: MySQL for transactional data, DuckDB for analytical reporting • Deploying and maintaining all services in Docker containers across a shared network • Managing cloud infrastructure on AWS: EC2, S3, and Route 53 I also work with SciRev, an academic platform for the scientific community, expanding my experience beyond security into data-driven web applications. I work best on long-term engagements where I can develop a deep understanding of the product and contribute beyond just writing code — helping shape technical decisions, architecture, and roadmap priorities. If you are building or scaling a SaaS platform in cybersecurity, compliance, or enterprise software, I'd like to understand your project.

Hi, I'm Abhiraj Anand, a Full Stack Developer with 5+ years of experience specializing in Travel Technology Development, Travel Portal Solutions (B2B & B2C), Rental Platforms, and complex API Integrations including Amadeus, Sabre, Travelport, Ratehawk, TBO, Tripjack, Mondee, Mystifly, Hotelbeds, Webbeds, Channel Manager, Payment Gateways, etc. I help travel agencies, OTAs, tour operators, DMCs, and rental businesses build modern booking platforms, automate operations, and scale through reliable travel technology solutions. --- ## Services I Offer * Travel Portal Development (B2C, B2B, White Label Solutions) * Flight, Hotel, Car Rental, Package & Activity Booking Systems * Travel API Integration (Amadeus, Sabre, Travelport, TBO, Tripjack, Hotelbeds, Webbeds, Channel Manager Integration, PMS integration, Payment Gateways) * Custom Web Development (Laravel, ReactJS, NodeJS, Next.js) * WordPress Development & Theme Customization * Shopify Store Development & Private App Integration * Performance Optimization, Scalability & Mobile Responsiveness ## Core expertise: * TravelPortal development – B2B, B2C, B2E, Corporate Travel Booking Tools & Agent Management Systems * GDS integration – Travelport, Amadeus, Sabre * NDC & LCC Integrations – Verteil, Tripjack, TBO, EaseMyTrip (EMT) and airline direct APIs * Hotel Booking Integrations – RateHawk, Expedia, TBO Holidays, Hotelbeds, Guesty, Webbeds and Private Inventory Systems (PMS) * Hotel mapping – Manual & Giata * Flight Expert integration & automation * Cruise, car rental, DMC software, package management tools * Travel CRM, ADM management, HX segment tools * Multi-API integrations – Flight, Hotel, Car, Cruise, Rail, Bus, Sightseeing, Activities * Payment gateways - Stripe, Razorpay, PayPal, Cashfree, Worldpay, Paytm, Worldline, PayU, ConnectIPS, CCAvenue, etc. --- ## Featured Projects * ClickYourJourney – Complete Travel Portal (B2C + B2B) Modules for flights, hotels, packages, activities, supplier management, lead management, invoicing, payment gateways, and multiple travel APIs. Tech Stack: PHP (CodeIgniter), ReactJS, MySQL * StudyDrive – Ride Share Platform Ride booking module with driver and guest management and marup module & Stripe payment gateway. Tech Stack: Node Js, Next Js, MySQL, Stripe * TeenvaTravels – Travel & Rental Website Next.js frontend, NodeJS backend, integrated Amadeus API for flight bookings, car rental, room/property rental. Tech Stack: Next.js, NodeJS, MongoDB --- ## Skills * Travel APIs & Technology: Amadeus, Sabre, Travelport, TBO, Tripjack, , Mondee, Mystifly, Ratehawk, Hotelbeds, Webbeds, Channel Manager, Payment Gateways * Languages & Frameworks: PHP (Laravel, CodeIgniter), JavaScript (ReactJS, NodeJS, Next.js), Python, Java, C++ * Frontend Development: ReactJS, AngularJS, Tailwind CSS, Bootstrap, jQuery, HTML5, CSS3 * Databases: MySQL, MongoDB * Tools & Platforms: AWS, Docker, GitHub, Bitbucket, GitLab, Figma, Photoshop * Other Expertise: API Integration, Optimization, Agile Development, Scalable Architecture ## Why Clients Choose Me * Expertise in travel technology & API-driven platforms * Clean, scalable, and maintainable code * On-time delivery with full transparency * Proven record of boosting booking efficiency & conversions * Ongoing post-launch support & maintenance ## Travel Technology Development * Flight Booking Portal Development * Hotel Booking Portal Development * Travel Portal Development * OTA Development * B2B Travel Portal Development * B2C Travel Portal Development * Corporate Travel Booking Systems * Travel CRM Development * Reservation Management Systems * Travel Booking Engine Development ## API Integrations * Amadeus API Integration * Sabre API Integration * Travelport API Integration * Flight API Integration * Hotel API Integration * NDC API Integration * GDS Integration * Supplier API Integration * Channel Manager Integration * Payment Gateway Integration * PMS Integration ## Travel Technology Expertise * Amadeus Developer * Sabre Developer * Travelport Developer * Ratehawk Developer * TBO Developer * Tripjack Developer * Webbeds Developer * Hotelbeds Developer * Channel Manager Developer * PMS Developer --- Travel Technology Expertise & Keywords Car Rental Portal • White Label Travel Portal • Travel API Integration • Amadeus Integration • Sabre Integration • Travelport Integration • Amadeus Development • Sabre Development • Travelport Development • Hotelbeds Integration • RateHawk Integration • TBO Integration • Tripjack Integration • Webbeds Integration • Stripe Integration • Razorpay Integration • PayPal Integration

I am a Development Team Lead at StarLabs, a leading information technology and services company, where I lead and support a talented team of Laravel web developers. We deliver exceptional web development projects for various clients, using the latest technologies and best practices. I am passionate about creating innovative and user-friendly web applications that solve real-world problems and enhance user experience. I am also a Bachelor's student in Computer Engineering at UBT - University for Business and Technology, where I am learning the advanced concepts of computer science, programming, and engineering. I have a strong background in PHP, Laravel, Node.js, Python, Mobile Applications, Graphic Design, and Web Design, as well as multiple certifications and honors in web development. I am always eager to learn new skills and improve my existing ones, and to apply them in my projects and challenges. My goal is to become a well-rounded and versatile full stack developer who can contribute to the digital transformation and innovation of various industries and sectors.

I've been building Wordpress, & Squarespace websites for 10+ years. You can expect high-quality results, clear and ethical communication, attention to details, aesthetic eye, and personalized, professional and friendly service. A pixel perfect Web designed and development with W3C standard. I focus on Web Development and Website User Interface Design. I want to be a part of your success by providing you best quality service! === My areas of expertise: ==== ✅ Responsive Web Design and Development ✅ WordPress/WooCommerce ✅ Squarespace Web Design with Custom coding ✅ Shopify/Shopify Plus ✅ WordPress Plugins ✅ Theme builder like: Elemetor, Divi, WPbakery etc ✅ Scripts & Utilities ✅ API Integration === My Skills: === ⚡ HTML5, CSS 3-4, Bootstrap 3-4, Flex CSS, Grid CSS ⚡ JavaScript, AJAX, jQuery ⚡ PHP7, MySQL, API, Site migration & Optimization ⚡ Adobe Photoshop, Shopify Liquid ⚡ Google speed optimization ⚡ Responsive website design (Mobile friendly as Android & ios) ⚡ Branding Identity ⚡ 24 x 7 Support === Why would you hire me? === ✔As a full time freelancer I love to build long term relationships with clients. ✔What I promise, I will deliver. I stick to my niche and what I'm good at. ✔Your website will be a clean build from the foundation up, making it easy to edit and manage on your own for years to come. ✔Professionalism. I work hard at my craft and actively keep up with web design and development trends and best practices. ✔ I don't waste your time and money. I just got paid for my work. Thank you for viewing my profile!

Full-stack engineer with 3+ years shipping multi-tenant production systems, plus a senior code review role for a frontier AI lab evaluating AI-generated code daily. So I bring both shipping discipline and a calibrated eye for code quality. I work in: Laravel/PHP, Vue 3, NestJS, React, Node.js, Prisma, MySQL/MariaDB, AWS, OAuth/SSO, and LLM integrations (OpenAI, streaming, async pipelines). Best fit for: multi-tenant SaaS builds, legacy modernization (PHP to modern JS), production debugging on real-world infra (cPanel, AWS), LLM-powered web apps, and senior-engineer code review. Currently lead engineer on a 7+ year-old ERP modernization across 37+ tenant sites at Script IT Solutions. Available for project builds, retainers, and 1:1 consultations. Clear written follow-ups after every engagement.

I help businesses build production AI agents and SaaS platforms — the kind that handle real users, real load, and real money. Over the past 𝟕 𝐲𝐞𝐚𝐫𝐬, I've worked with startups and growing businesses to ship solutions that don't just look good in a demo but actually scale. My job isn't to write code, it's to understand what you're trying to build, ask the questions that prevent rewrites later, and deliver something your team can rely on 😊 . 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐛𝐮𝐢𝐥𝐝 𝐟𝐨𝐫 𝐲𝐨𝐮: 1️⃣ AI agents: code generation, workflow automation, tool-use pipelines. OpenAI, Anthropic, Azure OpenAI, function calling, structured outputs, sandboxed execution (e2b, Docker). 2️⃣ SaaS platforms: multi-tenant Laravel APIs, Next.js / React frontends, Stripe billing, role-based dashboards. 3️⃣ Real-time systems: chat, presence, push notifications. Supabase Realtime for connected clients + Laravel → FCM pipelines for backgrounded mobile devices. 4️⃣ Mobile apps & APIs: Flutter and React Native, clean REST contracts, device token management, deep linking. 5️⃣ Integrations & automation: connecting tools, automating manual work, reducing operational overhead. 𝐓𝐡𝐞 𝐬𝐭𝐚𝐜𝐤: Backend: Laravel, PHP, PostgreSQL, MySQL, Supabase, Edge functions, Redis Frontend: Next.js, React, TypeScript, Vue AI: OpenAI, Anthropic, Azure OpenAI, Mobile: Flutter, React Native Payment Gateways: Stripe, PayPal, ChargeBee, Maast Infra: AWS, Vercel, Digital Ocean, Docker, Cloudflare, FCM 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤: I keep communication simple and clear & no unnecessary jargon. You'll always know where your project stands. I ask the right questions upfront so there are no surprises later. If you have a backend that's outgrown its MVP, an AI agent that needs to be production-grade, or a SaaS that needs to scale past demo data — send me a message. 𝐋𝐞𝐭'𝐬 𝐟𝐢𝐠𝐮𝐫𝐞 𝐢𝐭 𝐨𝐮𝐭 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫.

🏅 100% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗦𝗰𝗼𝗿𝗲 | 🏅 𝗢𝘃𝗲𝗿 $300𝗸+ 𝗘𝗮𝗿𝗻𝗲𝗱 | 🏅 9,930+ 𝗛𝗼𝘂𝗿𝘀 𝗪𝗼𝗿𝗸𝗲𝗱 🛡️ Senior Mobile App Developer | iOS & Android • Cross-Platform | Swift • Kotlin • Flutter • React Native Hello, I am a senior mobile app developer with over a decade of experience building high-performance, scalable, and secure mobile applications for businesses across industries. My work focuses on delivering clean, maintainable code, intuitive UI/UX, and robust integrations that ensure long-term reliability and growth. 🔹 Core Technical Expertise Native iOS Development (Swift, SwiftUI, Objective-C) • Advanced UI with SwiftUI • Secure authentication, Keychain, biometrics • In-App Purchases, StoreKit, subscription systems • Push notifications, background tasks, app lifecycle handling Native Android Development (Kotlin, Java) • Jetpack Compose, Material Design • Google Billing, Firebase integration • Secure data handling, encryption, offline caching • Device hardware integrations (GPS, camera, sensors) Cross-Platform Development • Flutter / Dart for fast, consistent multi-platform delivery • React Native for modular, scalable hybrid apps • Adaptive layouts, responsive UI, optimized rendering 🔹 Backend, Cloud & Integrations • Firebase: Auth, Firestore, Cloud Storage, FCM, analytics • Supabase: Auth, Postgres DB, RPC, edge functions • REST APIs, GraphQL APIs, WebSockets • AWS, GCP, Node.js, Python-based backend integration • AI/LLM integrations: OpenAI API, chatbots, voice AI 🔹 Advanced App Features Delivered • Real-time chat, messaging systems • Geo-tracking, mapping, route optimization • Media streaming, audio/video recording • Subscription apps (RevenueCat, Google Billing) • E-commerce app functionality • Custom dashboards, gamification, rewards • Highly secure login & data encryption 🔹 Engineering Process • Clean architecture (MVVM/MVI/Bloc) • CI/CD pipelines, testing, profiling • Milestone-based delivery with transparent updates • App Store & Play Store launch support • Full documentation + post-launch support 🔹 AI & LLM Expertise • OpenAI (GPT-4/5), Claude, Gemini • Prompt Engineering & Optimization • Tool / Function Calling • Autonomous AI Agent Development • Multi-Agent Systems • Retrieval-Augmented Generation (RAG) • Context & Memory Architecture Design 🔹 AI Frameworks • LangChain • LlamaIndex • CrewAI • AutoGen • Semantic Kernel • Hugging Face 🔹 Programming & Backend • Python (Advanced) • FastAPI • REST API Development • Async Programming • API Integration 🔹 Vector Databases & Data Handling • Pinecone • FAISS • ChromaDB • Weaviate • PostgreSQL • MongoDB 🔹 AI Solutions Development • AI Chatbots (Custom & Enterprise) • AI Sales & Lead Qualification Agents • Document Processing & Data Extraction • Knowledge Base AI Assistants • Workflow Automation Systems • AI SaaS Application Development 🔹 Deployment & DevOps • Docker • AWS / GCP • Vercel • CI/CD • Production Deployment & Scaling If you’re seeking a senior, dependable, and highly skilled mobile app developer to build or scale your iOS/Android application, I’d be glad to help you bring your vision to life. Thanks, Eshan Keywords# ------------- Mobile App Development, iOS Development, Android Development, Cross-Platform App Development, Hybrid App Development, Native App Development, React Native Development, Flutter Development, Swift Programming, Java/Kotlin Programming API Integration, UI/UX Design, Database Management, Front-End Development, Back-End Development, Agile Methodology, Git Version Control, App Testing and QA, Firebase Integration, Cloud Services (AWS, Azure) E-commerce App Development, Social Networking App Development, Fitness App Development, Game Development, Educational App Development, Travel App Development, Health & Wellness App Development, Finance/Budgeting App Development, AR/VR App Development, IoT Integration Project Management & Collaboration: Requirement Analysis, MVP Development, Deployment and App Store Submission, Continuous Integration/Continuous Deployment (CI/CD), User Feedback Implementation, Beta Testing "App Developer for Hire", "Freelance App Developer", "Experienced Mobile Developer", "Custom App Development", "Professional App Development Services"

I am a full-stack web developer with 14+ years of experience in web and mobile technologies. Since 2010, I have worked with clients across the globe, helping them build reliable, scalable, and user-friendly cloud software solutions. I enjoy working on both frontend and backend development, from creating clean interfaces to building strong APIs, databases, and cloud-based systems. I focus on writing clean, maintainable code and delivering solutions that match the client’s business goals. • 14+ years of experience in web and mobile application development • Strong experience with PHP, Node.js, Python, Laravel, CakePHP, Symfony, NestJS, FastApi, and GraphQL • Skilled in modern frontend technologies like React.js, Next.js, Vue.js, Nuxt.js, HTML, CSS, JavaScript, jQuery, Underscore.js, and Highcharts • Experienced with Craft CMS, including Craft CMS 2.x and 3.x projects • Hands-on experience with databases such as MySQL, PostgreSQL, Oracle, SQL Server, MongoDB, and Elasticsearch • Comfortable working with AWS services including EC2, AWS App Engine (Beanstalk), Docker, Fargate, EKS, ECS, Route 53, EBS, EFS, S3, Elastic Transcoder, CloudFront, SNS, Elastic Load Balancer, and Lambda with Node.js&Python • Experience with Google Cloud Platform • Worked on social media APIs integrations including Facebook, Twitter/X, LinkedIn, Google, Foursquare, and Instagram • Familiar with Git and SVN for version control • Able to work independently, communicate clearly, and deliver quality work on time My goal is to understand your requirements properly and provide a solution that is practical, efficient, and easy to maintain.

If you need to run your business smoothly on online platforms and want to keep it well-maintained easily, then come to me. I am a web developer who writes clear and clean codes that help you to integrate your business websites and apps smartly. I have full command of CMS like WordPress, Joomla, Drupal, Wix, HubSpot, and other languages like PHP, JavaScript, Python, and Liquid which are essential for developing a flawless E-commerce store or website. I am a professional with years of experience in multiple skills such as: - PHP Frameworks ( Laravel, Symfony, CodeIgniter ) - PHP CMS ( Wordpress, Joomla, Drupal, PrestaShop ) - PHP eCommerce Solutions ( Magento, Shopify, OpenCart, WooCommerce ) - Python Frameworks ( Django, Flask, CherryPy ) - Javascript Backend ( NodeJs, ExpressJs ) - Javascript Frameworks ( ReactJs, VueJs, AngularJs ) - CSS Frameworks ( Tailwind CSS, Bootstrap, Foundation, UIkit, Semantic UI, Skeleton ) - Databases ( MySQL, PostgreSQL, MongoDB, Redis, SQLite, MariaDB ) - Mobile App Native Development ( iOS & Android ) - Mobile App Hybrid Development ( Flutter, IONIC, PhoneGap, Titanium, Mobile Angular UI, Sencha, Kendo UI ) I build a strong fort-like site for your various products from dust in this age of digitalization and give you a reason to be recognized worldwide. I would love to work with you on any short or long-term projects of websites, games, and apps. If you want to keep things smoother and want to grasp the best results then you have to be clear about your business module and leave the rest to me. Approach me, as I am available for you any minute.