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High-Traffic Digital News Portal & Media CMS","Scalable online news media publishing portal and headless CMS handling 1M+ monthly pageviews with sub-second response times using multi-tier Redis caching.","# Barta24 - High-Throughput Digital News Portal\n\nA mission-critical news and media broadcasting web platform designed to serve millions of readers with breaking news alerts, multimedia stories, and live video feeds.\n\n### Key Highlights\n- **High-Concurrency Traffic:** Engineered to sustain traffic spikes exceeding tens of thousands of concurrent readers during breaking news events.\n- **Multi-Tier Caching:** Implemented Redis full-page and fragment caching alongside CDN edge caching, achieving sub-200ms page load times.\n- **Dynamic Content Management System (CMS):** Custom editorial dashboard with draft revisions, rich media uploading, SEO schema markup, and automated social syndication.\n- **Real-Time Push Notifications:** Web and mobile push notifications for instant breaking news distribution.","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1504711434969-e33886168f5c?w=800&auto=format&fit=crop&q=80","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1495020689067-958852a7765e?w=1200&auto=format&fit=crop&q=80",[60,62],{"url":57,"caption":61},"Barta24 - High-Traffic Digital News Portal & Media CMS Architecture Overview",{"url":58,"caption":63},"Barta24 - High-Traffic Digital News Portal & Media CMS System Design Breakdown",[19,20,22,23,65,66,67],"JavaScript (ES6+)","Bootstrap","Nginx",[69,70,71,72,73,75,77],{"skillId":28,"name":19,"iconUrl":29,"isPrimary":30},{"skillId":32,"name":20,"iconUrl":29,"isPrimary":30},{"skillId":36,"name":22,"iconUrl":29,"isPrimary":30},{"skillId":38,"name":23,"iconUrl":29,"isPrimary":30},{"skillId":74,"name":65,"iconUrl":29,"isPrimary":30},"8ffa3658-e1f1-48e4-aa49-45f34b8b074d",{"skillId":76,"name":66,"iconUrl":29,"isPrimary":30},"9768842a-b82a-406f-a944-52af13a147f6",{"skillId":78,"name":67,"iconUrl":29,"isPrimary":30},"b3593993-cf52-4450-9b0c-2eff38788704","https:\u002F\u002Fbarta24.com",2,4500,240,"2026-09-24T03:36:40.686Z",{"id":85,"slug":86,"title":87,"summary":88,"description":89,"thumbnailUrl":90,"bannerUrl":91,"gallery":92,"techStack":97,"technologies":100,"liveUrl":-1,"liveDemoUrl":-1,"githubUrl":-1,"repoUrl":-1,"featured":30,"status":43,"order":109,"sortOrder":109,"category":110,"role":46,"client":47,"startDate":-1,"endDate":-1,"startedAt":29,"completedAt":29,"viewsCount":111,"likesCount":112,"createdAt":113,"updatedAt":113},"e5b352e1-f536-4357-b84b-f16152c7ea21","ota-gds-travel-booking-engine","OTA Travel Booking & GDS Flight Ticketing Engine","Online Travel Agency (OTA) booking backend integrated with Global Distribution Systems (Amadeus & Sabre GDS) for real-time flight search, seat reservations, and payment processing.","# OTA Travel & GDS Flight Ticketing Engine\n\nAn Online Travel Agency (OTA) backend solution designed for real-time flight inventory aggregation, dynamic fare rules, passenger PNR generation, and automated ticket issuance.\n\n### Technical Achievements\n- **GDS API Integration:** Integrated Amadeus and Sabre XML\u002FREST APIs for real-time schedule searches, fare calculation, and seat bookings.\n- **Asynchronous Search Aggregation:** Concurrent multi-provider queries with Redis caching to deliver fast search results across hundreds of airlines.\n- **Payment & Verification Flow:** Integrated multi-channel payment gateways with automated transaction reconciliation and webhook validation.\n- **Automated Ticket Issuance:** Background job queues handling PNR creation, e-ticket PDF generation, and automated customer email\u002FSMS confirmations.","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1436491865332-7a61a109cc05?w=800&auto=format&fit=crop&q=80","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1488646953014-85cb44e25828?w=1200&auto=format&fit=crop&q=80",[93,95],{"url":90,"caption":94},"OTA Travel Booking & GDS Flight Ticketing Engine Architecture Overview",{"url":91,"caption":96},"OTA Travel Booking & GDS Flight Ticketing Engine System Design Breakdown",[19,20,98,22,23,99],"RESTful APIs","OOP & SOLID Principles",[101,102,103,105,106,107],{"skillId":28,"name":19,"iconUrl":29,"isPrimary":30},{"skillId":32,"name":20,"iconUrl":29,"isPrimary":30},{"skillId":104,"name":98,"iconUrl":29,"isPrimary":30},"eb538db2-c4d0-4f1a-ac25-fa5c0a56d078",{"skillId":36,"name":22,"iconUrl":29,"isPrimary":30},{"skillId":38,"name":23,"iconUrl":29,"isPrimary":30},{"skillId":108,"name":99,"iconUrl":29,"isPrimary":30},"37d20ab8-cc56-465e-8907-c5931f375624",3,"Backend & Distributed Systems",2800,160,"2026-09-24T03:36:40.693Z",{"id":115,"slug":116,"title":117,"summary":118,"description":119,"thumbnailUrl":120,"bannerUrl":121,"gallery":122,"techStack":127,"technologies":129,"liveUrl":137,"liveDemoUrl":137,"githubUrl":-1,"repoUrl":-1,"featured":30,"status":43,"order":138,"sortOrder":138,"category":45,"role":46,"client":47,"startDate":-1,"endDate":-1,"startedAt":29,"completedAt":29,"viewsCount":139,"likesCount":140,"createdAt":141,"updatedAt":141},"8ae1ca58-43ea-44e6-a531-6c2b4daab819","eishops-multi-vendor-ecommerce-platform","Eishops - Multi-Vendor E-Commerce Platform","Robust multi-vendor e-commerce marketplace featuring high-concurrency cart processing, inventory tracking, flash deals, and seamless payment gateways (SSLCommerz, bKash, Nagad, Stripe).","# Eishops - Multi-Vendor E-Commerce Marketplace\n\nA multi-vendor e-commerce platform built for high reliability, fast checkout, and seamless merchant management.\n\n### Key Capabilities\n- **Vendor Portal:** Comprehensive merchant dashboard for catalog management, order fulfillment, commission tracking, and payout settlements.\n- **Optimized Checkout & Cart Engine:** Real-time coupon validation, dynamic shipping rates, and sub-second cart recalculations.\n- **Payment Gateway Integrations:** Secure integration with SSLCommerz, bKash, Nagad, and Stripe with instant webhook callback handlers.\n- **Database Query Tuning:** Optimized complex relational queries, composite indexing, and database read-replicas, speeding up product catalog queries by 45%.","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1472851294608-062f824d29cc?w=800&auto=format&fit=crop&q=80","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1472851294608-062f824d29cc?w=1200&auto=format&fit=crop&q=80",[123,125],{"url":120,"caption":124},"Eishops - Multi-Vendor E-Commerce Platform Architecture Overview",{"url":121,"caption":126},"Eishops - Multi-Vendor E-Commerce Platform System Design Breakdown",[19,20,21,22,128,24],"Tailwind CSS",[130,131,132,133,134,136],{"skillId":28,"name":19,"iconUrl":29,"isPrimary":30},{"skillId":32,"name":20,"iconUrl":29,"isPrimary":30},{"skillId":34,"name":21,"iconUrl":29,"isPrimary":30},{"skillId":36,"name":22,"iconUrl":29,"isPrimary":30},{"skillId":135,"name":128,"iconUrl":29,"isPrimary":30},"e6d2b602-4d47-4424-902d-39649b578511",{"skillId":40,"name":24,"iconUrl":29,"isPrimary":30},"https:\u002F\u002Feishops.com",4,2100,115,"2026-09-24T03:36:40.704Z",{"id":143,"slug":144,"title":145,"summary":146,"description":147,"thumbnailUrl":148,"bannerUrl":149,"gallery":150,"techStack":155,"technologies":160,"liveUrl":-1,"liveDemoUrl":-1,"githubUrl":-1,"repoUrl":-1,"featured":171,"status":43,"order":172,"sortOrder":172,"category":110,"role":46,"client":47,"startDate":-1,"endDate":-1,"startedAt":29,"completedAt":29,"viewsCount":173,"likesCount":174,"createdAt":175,"updatedAt":175},"ece1c1f2-eca4-4d89-85a9-0978c94d3505","automated-sms-notification-gateway","Automated Asynchronous Notification & SMS Gateway Service","High-reliability asynchronous notification microservice handling bulk transactional SMS, email alerts, and webhook triggers with queue retry policies.","# Automated SMS & Transactional Notification Gateway\n\nA microservice engineered to handle multi-provider SMS dispatching, transactional email alerts, and webhook deliveries with high fault-tolerance.\n\n### Architecture Highlights\n- **Distributed Queue Processing:** Redis-backed worker pools to process tens of thousands of outbound notifications without blocking primary application threads.\n- **Provider Fallback Routing:** Automatic failover between local telco SMS aggregators and global providers in case of API downtime.\n- **Audit & Analytics:** Real-time delivery status logging, failure metrics, and client quota management.","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1526374965328-7f61d4dc18c5?w=800&auto=format&fit=crop&q=80","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1518770660439-4636190af475?w=1200&auto=format&fit=crop&q=80",[151,153],{"url":148,"caption":152},"Automated Asynchronous Notification & SMS Gateway Service Architecture Overview",{"url":149,"caption":154},"Automated Asynchronous Notification & SMS Gateway Service System Design Breakdown",[156,157,158,23,159,24],"Node.js \u002F Express","NestJS","TypeScript","PostgreSQL",[161,163,165,167,168,170],{"skillId":162,"name":156,"iconUrl":29,"isPrimary":30},"70578547-1ecc-40f4-911b-d0e4acff9db1",{"skillId":164,"name":157,"iconUrl":29,"isPrimary":30},"96066a7f-fb0d-4337-8c4a-421b9bb6dfa3",{"skillId":166,"name":158,"iconUrl":29,"isPrimary":30},"7e63de12-0ad8-4ca4-b7f8-807416e198bd",{"skillId":38,"name":23,"iconUrl":29,"isPrimary":30},{"skillId":169,"name":159,"iconUrl":29,"isPrimary":30},"96ef44c4-4975-4cbe-84c1-84820efb2f94",{"skillId":40,"name":24,"iconUrl":29,"isPrimary":30},false,5,1450,92,"2026-09-24T03:36:40.709Z",{"total":172,"page":44,"limit":177,"totalPages":44,"hasNextPage":171,"hasPreviousPage":171},9,1790222938110]