Hire the Best Sky Software Bayan Specialists

Most teams don't struggle to find developers. They struggle to find someone who can own architecture decisions, hold engineering standards, and still get hands-on when it matters. That's the role I've filled for over 10 years. I specialize in .NET Core and C# backend systems — designing REST APIs, building microservices, and architecting enterprise-grade platforms end to end. On the front end I work across Angular and React. Cloud deployments across Azure and AWS, CI/CD pipelines, and Agile delivery are all part of my regular workflow. On Upwork: Top Rated Plus, 100% Job Success Score, 50+ completed contracts, 12,000+ hours billed — mostly with US-based product teams that needed a senior engineer they could trust to own the technical side. I take on both long-term engagements and focused consulting work. If you have a complex backend challenge or need a technical lead who can bridge engineering and business — let's talk.

Top Rated Backend Developer | 100% Job Success | 8+ Projects Shipped I'm a backend developer who builds systems that handle real production load. Real-time bidders processing millions of requests at sub-200ms latency, analytics pipelines ingesting thousands of events per second, and fraud detection engines that cut invalid traffic measurably. Not tutorial projects. Shipped, running, revenue-generating products. Why clients hire me as their backend developer: I've built and own an entire programmatic advertising platform end-to-end as the sole backend developer: bidding engine, identity resolution, analytics pipeline, mobile SDK, fraud detection, and publisher/advertiser dashboards. I ship production backend systems in Go, Node.js/TypeScript, and Python, not just one language. I design databases that actually scale: PostgreSQL, MongoDB, ClickHouse, Redis, Aerospike, picked for the workload, not the trend. What I've delivered as a backend developer: - Real-time bidding engine (Go, OpenRTB 2.x): 8-stage request pipeline, 14-filter targeting, three pricing models, sub-200ms P95 - Bot and IVT detection platform: originally Node.js, rewritten in Go for 10x throughput improvement - ClickHouse analytics pipeline with Kafka ingestion: intent scoring, bid multipliers, CLV modeling, channel attribution - Cross-device identity resolution service: LiveRamp, ID5, UID2, Prebid integration with TCF 2.0 compliance - Android SDK (Kotlin): Prebid header bidding + GAM mediation with on-device fraud detection - B2B SaaS hiring platform (NestJS/TypeScript/MySQL/Stripe): multi-tenant architecture, full payment integration - Real-time vehicle recovery marketplace: WebSocket-based matching - NFC loyalty app backend (MERN stack): 10K+ Google Play downloads - Universal tracking pixel: auto-event capture, ecommerce funnel tracking, GDPR/CCPA compliant - EV charging platform backend (Node.js/Express/MySQL/AWS) My backend development stack: Languages: Go, Node.js/TypeScript, Python, Kotlin Frameworks: NestJS, Express, Gin, React/Next.js Databases: PostgreSQL, MongoDB, MySQL, ClickHouse, Redis, Aerospike Infrastructure: AWS, Docker, Kafka, Prometheus/Grafana, OpenTelemetry APIs: REST, GraphQL, OpenRTB 2.x, WebSockets Ideal backend developer projects for me: - API development and backend architecture for SaaS platforms - High-throughput data pipelines and real-time processing systems - Ad-tech, programmatic advertising, and bidding infrastructure - Microservices design, database optimization, and system scaling - Mobile app backends and SDK development I respond within a few hours, communicate proactively with async updates, and hand off clean, documented code with full repo access. Whether you need a backend developer for a new build or to scale an existing system, let's talk about your project.

Are you looking for a senior .NET developer who can turn complex business requirements into reliable, scalable software? I’m Zeeshan, a full-stack .NET and Cloud Developer with 🏆 10+ years of experience building SaaS products, modernizing legacy systems, and delivering business-critical applications. I help companies build secure ASP.NET/C# platforms, REST APIs, SQL Server solutions, AWS deployments, SharePoint workflows, and low-risk batch-data migrations. I also understand the requirements of regulated applications, including 21 CFR Part 11 considerations such as audit trails, role-based access, electronic records, validation, and data integrity. *What I Can Deliver* ✅ End-to-end SaaS application development—from architecture to deployment ✅ Scalable ASP.NET and C# web applications ✅ Secure REST APIs and third-party integrations ✅ SQL Server architecture, query optimization, and database maintenance ✅ Batch-data migrations with validation and minimal disruption ✅ AWS deployment, infrastructure, monitoring, and cost-aware operations ✅ SharePoint solutions that streamline collaboration and business processes ✅ Legacy .NET modernization to improve performance, stability, and maintainability ✅ Software features for 21 CFR Part 11–aligned regulated environments Technical Focus Backend: C#, .NET, ASP.NET, REST APIs, integrations SaaS & Cloud: multi-tenant application architecture, AWS deployment, monitoring, and scalability Data: SQL Server design, optimization, migrations, validation, and data integrity Enterprise & Compliance: SharePoint, role-based access, audit trails, and regulated-system workflows I focus on the business problem first, then deliver practical, maintainable solutions with clean code, transparent communication, and long-term reliability in mind. If you need a SaaS product, a secure .NET application, AWS deployment, SQL optimization, SharePoint development, a compliant workflow, or a complex migration, let’s discuss your project.

ASP.NET Core | C# | React | Angular | Docker | Azure | CI/CD | REST API | Jira | Trello | SQL Server | Entity Framework | SignalR | TypeScript | Clean Architecture | PostgreSQL | Azure DevOps | JWT | OAuth2 | Microservices | Web API | GitHub Actions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 Full Stack .NET Developer | 100% Job Success | Rising Talent ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Full Stack .NET Developer who ships production-ready web apps — clean APIs, React/Angular frontends, Docker-containerized, Azure-deployed. 100% Job Success. Rising Talent. Available now. I work with startups and businesses that need a single developer who owns the entire stack — ASP.NET Core backend, React or Angular frontend, SQL Server database, Docker containers, and Azure cloud deployment — delivered with clean architecture and zero excuses. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔧 WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ ASP.NET Core REST APIs — versioned, Swagger-documented, xUnit tested ✅ React.js SPAs — dashboards, admin panels, real-time UIs, TypeScript ✅ Angular Applications — enterprise-grade, RxJS, NgRx, standalone components ✅ Docker + CI/CD Pipelines — Azure DevOps, GitHub Actions, zero-downtime deploy ✅ Cloud Deployment — Azure App Services, Docker containers, IIS, Azure SQL ✅ Microservices Architecture — decoupled, scalable, production-ready ✅ Authentication — JWT, OAuth2, ASP.NET Identity, Role-Based Access Control ✅ Real-Time Apps — SignalR, WebSockets, live notifications, chat systems ✅ Database Design — SQL Server, PostgreSQL, EF Core, Dapper, stored procedures ✅ API Integrations — Stripe, OpenAI, Twilio, SendGrid, Google APIs ✅ SaaS & MVP Builds — concept to deployed product, structured and fast ✅ Legacy Migration — .NET Framework 4.x to .NET Core 6/7/8 upgrades ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ COMPLETE TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Backend → ASP.NET Core 6/7/8 | C# | Web API | MVC | SignalR | LINQ Frontend → React.js | Angular 9+ | TypeScript | JavaScript | Tailwind | Bootstrap Database → MS SQL Server | PostgreSQL | Entity Framework Core | Dapper | LINQ Cloud → Microsoft Azure | Azure App Services | Azure SQL | Blob Storage DevOps → Docker | CI/CD | Azure DevOps | GitHub Actions | Git | IIS Security → JWT | OAuth2 | ASP.NET Identity | HTTPS | CORS | RBAC Testing → xUnit | Postman | Swagger | Integration Testing | REST Client ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💼 PROJECTS I AM BEST FIT FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → SaaS platforms — .NET Core backend + React/Angular frontend → Enterprise dashboards and internal tools → E-commerce backends with admin panels → Real-time apps — chat, notifications, live tracking → AI-powered web apps — OpenAI API + ASP.NET Core → Azure cloud-native apps with Docker + CI/CD pipelines → Legacy .NET modernization projects ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐ WHY CLIENTS INVITE ME ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → 100% Job Success Score — every project delivered → Rising Talent badge — verified by Upwork → Clean Architecture — SOLID, Repository Pattern, DI → Daily updates — you always know project status → Available across US / UK / EU time zones → I ask the right questions before writing one line of code ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔑 KEYWORDS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ASP.NET Core Developer | .NET Developer | C# Developer | Full Stack Developer | Jira | Trello | React Developer | Angular Developer | REST API | Web API | Entity Framework | SQL Server | Azure | Docker | CI/CD | DevOps Engineer | SignalR | TypeScript | SaaS Developer | MVP Developer | Microservices | Clean Architecture | .NET 6 | .NET 7 | .NET 8 | Backend Developer | Cloud Developer | Azure DevOps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🟢 Available Now | Replies within 1 hour 📩 Message me — I review every project same day.

I help businesses build fast, maintainable enterprise applications using .NET Core, C#, Angular, and MERN stack — delivering clean microservices architecture that scales without breaking. With 9+ years of hands-on experience, I've shipped production systems across multiple industries covering the full stack: from ASP.NET Core Web APIs and C# microservices on the backend, to Angular Material and Node.js on the front, backed by SQL Server, MySQL, and AWS. ✅ What I build: → ASP.NET Core & ASP.NET MVC applications with RESTful and Web API layers → C# microservices with event-driven design (RabbitMQ, Azure Service Bus) → Real-time features using SignalR and WebSockets → Angular & MERN stack SPAs with clean component architecture → API integrations — third-party services, payment gateways, data pipelines → Authentication & authorization (OAuth2, JWT, Identity Server) → CI/CD via Azure DevOps, GitHub Actions, and Docker on AWS ✅ Why clients hire me: With 44 completed jobs and a 100% Job Success Score, I bring the reliability of a senior engineer with the communication of a product partner. I write clean, well-documented code, flag risks early, and deliver what's scoped — not more chaos. I work well with: • Startups building their first API or SaaS product • Teams extending existing .NET / Angular/ React codebases • Clients who need a developer who understands business goals, not just tickets 📦 Stack at a glance: Backend: .NET Core, C#, ASP.NET MVC, Web API, Microservices, Node.js, WPF,OpenAI Frontend: Angular, TypeScript, JavaScript, Angular Material, React Database: SQL Server, MySQL, Entity Framework, LINQ Cloud/DevOps: AWS, S3, Azure, Blob Storage, DevOps, Docker, GitHub Other: SignalR, Firebase, Python, Data Extraction, REST, API Integration Background jobs: Windows Services, Cron job, Azure Functions If you need a reliable senior developer who can own the architecture and ship it, let's talk.

Very skilled, innovative and motivated Sr. Software Engineer with more than 15 years of experience analyzing, designing and developing web applications, desktop applications, Web APIs, Windows services, Microsoft Office Addins, Outlook 365 VSTO Addins, Outlook VSTO Addins, Outlook 365 Web Addins and different software projects. Extensive experience supervising junior software developers and working within teams. Superb organization and communication skills. Seeking software projects/tasks in the technologies like C#, ASP.NET, MVC, ASP.NET Core, Entity Framework, ASP Classic, HTML5, CSS3,Bootstrap, JQuery, Javascript, SQL Server, MySQL, Microsoft Dynamics GP, Microsoft Dynamics 365, SAGE, Quickbooks APIs and LinkedIn APIs. Having Master Degree in Computer Science (MCS) from International Islamic University Islamabad in 2006 expertise are C#, ASP.NET, MVC, Entity Framework, ASP Classic, HTML5, CSS3, Bootstrap, JQuery, Javascript, SQL Server and MySQL. Also have hand on experience of MVC.NET, ASP.NET Core, Entity Framework, Jquery, javascript, Web API, Angular JS, Microsoft GP Dynamics and Windows Applications. Completed numerous projects (web applications, desktop applications) during my career in Buraq Integrated Solutions , Challenge Hunters, Synergy Advisory and Solutions and Datasmith (Current company). I have integrated some API's in different projects like LinkedIn API's, Rackspace API's, PayPal API's, Amazone API's,MaxHire API's, Quickbooks API's etc. I have more than 4 years of experience working on projects using MVC.NET, Entity Framework, Web API, Angular JS, Microsoft GP Dynamics. My approach to job is very professional. First of all I analyze the work and see the feasibility of task and choose least cost in terms of design, coding and time. Then I design the database and classes and start working by using suitable technology for the right tasks.