Hire the Best Knoahsoft Harmony Specialists

I'm a senior software engineer with 18+ years of experience, specializing in AI-powered solutions, DevExpress XAF enterprise applications, and Blazor/.NET development. I help businesses automate operations with AI voice agents, build robust enterprise applications, and integrate complex systems — delivering production-ready solutions that save time and scale. What I deliver: AI Agents & Voice AI — Autonomous voice bots with RAG (Retrieval-Augmented Generation) for context-aware responses, LLM integration, NLU, speech processing. Agents that pull from your business knowledge base to answer accurately. DevExpress XAF — Expert-level development, customization, migration, and maintenance of XAF business applications for any industry. Blazor & .NET — High-performance web applications with complex data pipelines, iPaaS integrations, and modern UI. Mobile & Web Apps — Full-stack delivery from concept to deployment across web and mobile platforms. System Integration — Connecting APIs, databases, SaaS platforms, and legacy systems into unified workflows. Tech Stack: AI Agents, Voice AI, LLM Integration, DevExpress XAF, Blazor, .NET Core, C#, Python, T-SQL, TypeScript, MS SQL Server, Azure, REST APIs 18+ years building enterprise software. Microsoft Certified. Ready to solve your toughest technical challenges.

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 build production-grade web applications, custom MCP servers, and failure-proof AI automation pipelines. With over 8,800+ hours on Upwork (100% Job Success Score, Top Rated Plus), I specialize in helping founders and engineering teams connect AI workflows directly into their existing full-stack applications—handling real load and live financial data, not sandbox traffic. Core Capabilities: 🔹 AI Engineering & Custom MCP Servers • Model Context Protocol (MCP): Building custom servers to connect LLMs directly to live business databases and internal APIs. • Agentic Systems: Designing multi-step workflows using LangGraph, pgvector (RAG), and Claude/OpenAI APIs. 🔹 Full-Stack & Cloud Architecture • Front-End & Back-End: Next.js, React, NestJS, Node.js, and TypeScript. • Database & Cache Design: PostgreSQL, Redis, Prisma, Supabase. • DevOps & Infrastructure: Kubernetes, Docker, AWS, GCP, and CI/CD pipelines. 🔹 Durable Workflow & AI Automation • Implementing durable pipelines via n8n and Inngest with stateful execution and idempotent step writes so automation never fails silently under heavy load. 🔹 Enterprise & FinTech Systems • Robust API design for platforms where transactional correctness and data integrity are non-negotiable. Tech Stack: TypeScript | Next.js | NestJS | Python | PostgreSQL | Redis | Docker | Kubernetes | AWS | Claude API | LangGraph | MCP | n8n | Inngest | Stripe Whether you need a custom MCP server built, an AI agent integrated into your SaaS platform, or an architectural audit for your backend—send me a brief message about what you're building, and we can discuss the best execution path.

Senior Full Stack Engineer — 10+ years on enterprise multi-tenant SaaS in .NET and Angular, with an AI-augmented delivery workflow (BMad Method + Claude Code) that ships faster without cutting production quality. I've built on German energy-sector platforms, Dutch enterprise BI, UK product startups, and American B2B SaaS. I work in .NET / ASP.NET Core / Blazor on the backend and Angular (current Angular 21) on the frontend, and I'm comfortable owning projects end-to-end — architecture, database design, infrastructure, deployment, and ongoing support. What sets my delivery apart is the AI-augmented workflow. Since late 2025 I've been operating with BMad Method (multi-agent orchestration: Analyst, Architect, PM, Developer, Reviewer) layered over Claude Code and GitHub Copilot. The result is dramatically faster delivery on projects from greenfield MVP through to large brownfield codebase restructures, without losing production quality. I've spread this practice across multiple production engagements over the last 7 months. I'm Microsoft Azure certified (AZ-204, Azure Developer Associate) and currently pursuing AI-103 (Develop AI apps and agents on Azure), PSPO I (Professional Scrum Product Owner), and a data science track. What I've shipped on enterprise SaaS: ▪ 20-microservice German energy-sector multi-tenant SaaS — 6+ years on this platform, including custom shop-system rewrites, MSCONS (UN/EDIFACT) integration for German energy-market data ingestion, and pen-test remediation that closed all findings within a week (the follow-up audit by an independent firm returned zero). ▪ Custom database encryption flow on a multi-tenant utility services platform — encrypted the full production dataset via zero-downtime migration. ▪ Dynamic contract generation with key-replacement templating + role-scoped operations — eliminated engineering as the bottleneck for tenant-side contract customisation. ▪ Greenfield Microsoft Fabric / Power BI platform with GDPR-compliant Entra ID auth (3-developer team I led). ▪ 2-month MVP for a UK entertainment crowdfunding platform, leading a 2-developer team and owning client communication. What I'm best at: ▪ Multi-tenant SaaS architecture from greenfield through to restructuring of established codebases ▪ AI-augmented delivery (BMad + Claude Code) — making solo and small-team work feel like a much larger team ▪ Microsoft stack: .NET / Azure / Entra ID / Microsoft Fabric ▪ Database design and migrations, including unusual access patterns (custom encryption, multi-tenant isolation) ▪ Domain-specific integrations like MSCONS / UN-EDIFACT for the German energy market What I'm looking for here: ▪ Multi-week senior IC / architect engagements (4-12 weeks) ▪ Project-based architecture / code review / refactor work ▪ Greenfield MVPs where AI-augmented workflow can shine How I work: ▪ 4 hours of daily overlap with US business hours (11:00-15:00 Eastern) — my evenings are your mid-day ▪ A written progress summary every week, so you never have to chase status ▪ Straight answers on scope and risk before we start, not after Happy to discuss your project on a quick call before bidding — I'll tell you honestly whether I'm the right fit for it.