10/07/2026 updated
100 % available
Senior .NET Engineer | Backend & Full-Stack
bareilly, India
Only remote
B.Tech, Computer Science and EngineeringAsp.net Web ApiBackend ProgrammingApi Gateway
.NET Backend Development
Expertise in building production-grade APIs and web platforms using .NET 9/8/6, ASP.NET Core (Web API, Minimal APIs, MVC), .NET Framework 4.x, Entity Framework Core, EF6, LINQ, multithreading, async and parallel processing, Polly, and background services.
REST/SOAP API & Supplier Integration
Deep experience in REST API design, SOAP/WCF, WSDL/XSD contracts, XML and JSON mapping, integrating 40+ GDS, NDC, airline and consolidator APIs (Amadeus, Sabre, Travelport uAPI, Navitaire), JWT authentication, API rate limiting, versioning, and Swagger/OpenAPI documentation.
Payment Gateway & Finance Module Integration
Hands-on integration of payment gateways including Razorpay, Easebuzz, CCAvenue, and BridgePG, covering online payment tracking, gateway fee configuration, bank refund handling, wallet top-up, balance checks, ledger accounting, credit notes, credit limits, and financial/sales reports.
Data, Caching & Database Management
Proficiency in SQL Server (schema design, stored procedures, query tuning), MongoDB, Redis (application-level and multi-tier caching), MySQL, and Azure Blob Storage.
Cloud, Infrastructure & DevOps
Experience with Azure, IIS, Windows Server, Linux/Ubuntu, Nginx, multi-environment (DEV/STAGING/PROD) hosting, Jenkins declarative CI/CD pipelines, MSBuild/NuGet, Git branching strategies, automated build/publish/deploy, and release management.
Observability & Monitoring
Implementation of OpenTelemetry metrics exported to Prometheus and Grafana, Alertmanager, readiness and liveness health checks for MongoDB, Redis and supplier endpoints, application logging with log4net, and background slowness-detection and alerting services.
Front-End Development
Development of responsive web interfaces using React, TypeScript, Vite, ASP.NET MVC/Razor, JavaScript/AJAX, HTML5, and CSS3.
Testing & Quality Practices
Writing xUnit unit tests (490+ test suite), Agile/Scrum methodology, code reviews, production support, root-cause analysis, and AI-assisted development using Claude and Claude Code.
Node.js & TypeScript Microservices
Contribution to Node.js/Express TypeScript microservices wrapping Navitaire and Sabre SOAP APIs as JSON endpoints, backed by Redis and MongoDB with Prometheus metrics.
Expertise in building production-grade APIs and web platforms using .NET 9/8/6, ASP.NET Core (Web API, Minimal APIs, MVC), .NET Framework 4.x, Entity Framework Core, EF6, LINQ, multithreading, async and parallel processing, Polly, and background services.
REST/SOAP API & Supplier Integration
Deep experience in REST API design, SOAP/WCF, WSDL/XSD contracts, XML and JSON mapping, integrating 40+ GDS, NDC, airline and consolidator APIs (Amadeus, Sabre, Travelport uAPI, Navitaire), JWT authentication, API rate limiting, versioning, and Swagger/OpenAPI documentation.
Payment Gateway & Finance Module Integration
Hands-on integration of payment gateways including Razorpay, Easebuzz, CCAvenue, and BridgePG, covering online payment tracking, gateway fee configuration, bank refund handling, wallet top-up, balance checks, ledger accounting, credit notes, credit limits, and financial/sales reports.
Data, Caching & Database Management
Proficiency in SQL Server (schema design, stored procedures, query tuning), MongoDB, Redis (application-level and multi-tier caching), MySQL, and Azure Blob Storage.
Cloud, Infrastructure & DevOps
Experience with Azure, IIS, Windows Server, Linux/Ubuntu, Nginx, multi-environment (DEV/STAGING/PROD) hosting, Jenkins declarative CI/CD pipelines, MSBuild/NuGet, Git branching strategies, automated build/publish/deploy, and release management.
Observability & Monitoring
Implementation of OpenTelemetry metrics exported to Prometheus and Grafana, Alertmanager, readiness and liveness health checks for MongoDB, Redis and supplier endpoints, application logging with log4net, and background slowness-detection and alerting services.
Front-End Development
Development of responsive web interfaces using React, TypeScript, Vite, ASP.NET MVC/Razor, JavaScript/AJAX, HTML5, and CSS3.
Testing & Quality Practices
Writing xUnit unit tests (490+ test suite), Agile/Scrum methodology, code reviews, production support, root-cause analysis, and AI-assisted development using Claude and Claude Code.
Node.js & TypeScript Microservices
Contribution to Node.js/Express TypeScript microservices wrapping Navitaire and Sabre SOAP APIs as JSON endpoints, backed by Redis and MongoDB with Prometheus metrics.
Experience
Professional experience0 - 5 years
Freelancer since2021
Languages
EnglishGood
Project history
Developed and maintained web applications for a global IT services company across UI, API and database layers using C#, ASP.NET MVC, .NET Core Web API, SQL Server and JavaScript. Designed responsive web interfaces in HTML5, CSS3 and JavaScript, built REST APIs and SQL Server database objects, and handled deployment and production fixes.
Full-stack developer on a travel technology product delivering booking engines, white-label portals and XML/GDS integrations for travel agencies, OTAs and tour operators. Developed REST and SOAP supplier integrations, delivered features across API, database and UI layers using C#, ASP.NET MVC, Web API, LINQ and SQL, designed and optimized SQL Server schemas, and worked in Agile sprints.
Designed and shipped a dynamic e-commerce website with online store and order management on C#, ASP.NET MVC, .NET Core Web API and MySQL, owning architecture, backend, database and deployment end to end.