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🚀 Senior Blazor & .NET Developer | 20+ Years of Experience I help businesses build modern, scalable, and production-ready web applications using Blazor, ASP.NET Core, C#, SQL Server, and Azure. With more than 20 years of experience in Microsoft technologies and 69 completed Upwork projects, I specialize in building SaaS applications, business portals, dashboards, and API-driven systems. ## Core Expertise ✔ Blazor Server & Blazor WebAssembly ✔ ASP.NET Core & REST APIs ✔ C# and SQL Server ✔ Azure Functions & Cloud Services ✔ Authentication & Authorization ✔ Third-Party API Integrations ✔ OpenAI & AI-Powered Applications ✔ SaaS Product Development ## Solutions I Build • SaaS Applications • CRM and Business Applications • Admin Dashboards • Vendor Management Systems • Timesheet and Billing Systems • AI-Powered Applications • Internal Enterprise Portals ## Recent Product ### VendorCompliancePro Currently, I am building VendorCompliancePro, a SaaS platform designed to help companies automate vendor document compliance and expiry tracking. The system provides: • Vendor onboarding and management • Document expiry reminders • Compliance dashboards and reporting • Role-based access control • Email notifications and workflow automation • Secure cloud-based architecture ## Why Clients Hire Me ✅ 20+ years of C# and .NET experience ✅ 69 successfully completed Upwork projects ✅ Clean and maintainable architecture ✅ Performance-focused development ✅ Reliable communication and timely delivery ## Recognition 🏆 C# Corner MVP (Most Valuable Professional) 🏆 Microsoft Community Contributor Award Winner 📖 Author of "Blazor WebAssembly Succinctly" I don't just write code—I build software products that businesses can confidently grow on. Let's discuss how I can help bring your project to life.

10+ Years Experience | 12,000+ Upwork Hours | 100% JSS | 300+ Projects Delivered I engineer secure, enterprise-grade Microsoft ecosystems. I specialize in bridging corporate data with modern workflows—transforming legacy infrastructures into intelligent environments using Microsoft 365 Copilot, Azure OpenAI, Semantic Kernel, and advanced AI Agents. If your enterprise needs to automate complex workflows, securely integrate custom AI tools, or modernize legacy systems without risking data leaks, I provide the senior architectural oversight to deliver. 🚀 ENTERPRISE CO-PILOT & AI INTEGRATION • Custom AI Agents: Designing autonomous agent workflows using Copilot, Cursor, and Claude APIs. • Copilot Studio: Building custom plugins connecting Microsoft 365 Copilot to external enterprise databases. • Secure Cloud AI: Deploying custom LLM integrations via Azure OpenAI Service and Semantic Kernel. 🌐 MICROSOFT 365 & GRAPH API ARCHITECTURE • Deep Integrations: Enterprise-wide automations leveraging the Microsoft Graph API (Teams, Outlook, SharePoint). • Modern Office Add-ins: Custom JavaScript/TypeScript Office.js extensions and legacy VSTO development for Excel, Word, and Outlook. • Process Automation: Advanced Power Automate workflow designs and custom connector setups. ☁️ CLOUD BACKEND & IDENTITY SECURITY • .NET Cloud Architecture: High-performance ASP.NET Core APIs and scalable Azure Functions (.NET 8/9). • Enterprise Security: Advanced OAuth2, OpenID Connect, and Microsoft Entra ID (Azure AD) SSO implementations. • Modernization: Migrating legacy .NET Framework applications to cloud-native modern .NET. • Desktop & Cross-Platform: Robust desktop systems engineered via WPF, WinForms, and .NET MAUI. CERTIFICATIONS & TRUSTED CREDENTIALS • Microsoft Certified: Azure Fundamentals (AZ-900) • Microsoft Certified: Azure Data Fundamentals (DP-900) • AWS Certified Developer – Associate I work directly with enterprise stakeholders and technical teams to deliver clean architecture, strict data compliance, and long-term maintainability. Let’s connect to build your next-generation Microsoft ecosystem.

I am a Software Architect and Database specialist with 15+ years of experience designing, developing, and optimizing web, desktop, and mobile applications for clients worldwide. I specialize in end-to-end solution delivery—from requirement analysis and system architecture to development, deployment, and long-term support. I have built applications ranging from small business tools to large-scale enterprise systems across web, mobile, and desktop platforms. I also have strong expertise in SQL Server database administration and performance tuning, including query optimization, indexing strategies, and resolving complex production performance issues. Over the years, I have worked with global clients and built long-term relationships, including engagements lasting over 4 years, helping them scale and improve their systems. I am passionate about writing clean, efficient code and delivering reliable, scalable, and business-focused software solutions. Core Expertise: .NET and .NET Core(C#, VB.NET), Azure JavaScript, React, Vue.js, AngularJS, jQuery SQL Server, MySQL, MongoDB Database performance tuning & optimization WPF, legacy systems, and third-party integrations

Over the last 10 years, I have developed a wide range of websites using HTML, CSHTML, C# , MVC, JQUERY, JQUERY MOBILE, KNOCKOUT, AJAX and MS SQL SERVER including sites for companies inside and outside the country. My core competency lies in complete end to end management of a new website development project including analysis, database design to UI and I am looking for the opportunities to develop application related to my past experience or new one (if required) as i believe the research is always part of a development.

23+ years in Linux/Windows administration, DevOps, and cloud infrastructure. I build, secure, and scale production systems 24/7 — for MSP clients and direct engagements across industries. If your server is down, your deployment is failing, or you need infrastructure built right the first time — I'm the engineer you call. ━━ SERVER & SYSTEMS ━━ Linux (CentOS, Debian, Ubuntu, Amazon Linux, Rocky Linux) and Windows Server (2012–2025). Active Directory, Group Policy, Intune, hybrid identity. Nginx, Apache, Sendmail, Qmail, Postfix, Exim — MTA setup, Dovecot, SpamAssassin, OpenDKIM, SPF/DKIM/DMARC. Veeam, Acronis, cloud-native DR. Hypervisors: KVM, VMware ESXi, Hyper-V, Proxmox VE — HA clusters, live migration, Ceph/ZFS, Proxmox Backup Server. Redis, Varnish. QNAP NAS — storage management, Plex Media Server deployment, VPN tunnel integration. WHM/cPanel, Plesk, Virtualmin, CloudPanel, CyberPanel. ━━ CLOUD INFRASTRUCTURE ━━ AWS: EC2, ECS, EKS, RDS, S3, Route 53, IAM, VPC, CloudWatch, Lambda, API Gateway, Elastic Disaster Recovery. GCP: Cloud Run, Cloud Build, Firestore, GKE, IAM, VPC, Pub/Sub, Cloud Storage, Secret Manager, Cloud Monitoring. Cloudflare (WAF, Workers, Zero Trust, CDN). DigitalOcean, Hetzner, Vultr. MinIO: S3-compatible object storage on bare metal, VMs, Kubernetes — distributed mode, SSE-S3/KMS, lifecycle policies, drop-in S3 for backups and MLOps. Railway: Full-stack PaaS — GitHub/Docker auto-build, managed DBs (PostgreSQL, MySQL, Redis), private networking, env variables, cron workers, auto-scaling. ━━ SECRETS MANAGEMENT ━━ HashiCorp Vault: Dynamic secrets for AWS IAM, databases, cloud providers — TTL-bound credentials, auto-revoke. PKI for internal CA and on-demand TLS. Vault Secrets Operator for Kubernetes (etcd-free pod injection). Raft HA, RBAC, audit logging, Shamir unseal. Transit engine for encryption-as-a-service. CI/CD integration to eliminate hardcoded credentials. ━━ DEVOPS & CI/CD ━━ Docker, Kubernetes (EKS + self-managed: kubeadm, k3s, RKE2), Helm, Kamal. GitHub Actions, GitLab CI, Bitbucket Pipelines. Terraform, Ansible. ArgoCD, Flux (GitOps). Prometheus, Grafana, Datadog. Traefik: Cloud-native ingress — auto TLS, Docker/K8s service discovery, ForwardAuth, rate limiting, canary routing. Caddy: Zero-config-TLS reverse proxy — automatic HTTPS, on-demand certs. Preferred for self-hosted stacks. ━━ NETWORKING & SECURITY ━━ WireGuard, OpenVPN (MFA/ZTNA), IPSec/Libreswan, Xray/REALITY. Tailscale/Headscale — self-hosted mesh VPN, VPS tunnel setup, ACL policies, subnet routing. MikroTik, Juniper, SonicWall, Fortinet (FortiGate, FortiManager, FortiAnalyzer). pfSense, OPNsense. BGP, OSPF. Auth0, OAuth2, OIDC, Duo Security. LDAP/RADIUS, 802.1x, NPS/AD CS/Intune. ━━ DEVELOPMENT & AUTOMATION ━━ Python: FastAPI, Flask, Django, RESTful APIs, OpenAI API, ETL pipelines (Airbyte), orchestration (Airflow, n8n), data processing (pandas), Retool internal tools. Clean, documented, production-ready code. ━━ CONTAINERIZATION & DEPLOYMENT ━━ Docker Compose, Kubernetes manifests, Helm. Portainer, Coolify, Elestio, Traefik, Caddy. MinIO (K8s Operator/Tenant). Nextcloud, n8n, self-hosted app deployment. Vercel, Railway, Netlify, Replit. ━━ MSP & VOIP ━━ Duo Security, SpamTitan, ScreenConnect, ESET, Acronis. M365 multi-tenant administration. Asterisk and Vicidial (AWS + on-prem) — SIP trunks, IVR, call center setup, NetSIP integration. ━━ LEGACY & EARLY CAREER ━━ Foundational background in Windows desktop application development (VB, C#, Access) and web development (Core PHP, Laravel). ━━ WHAT CLIENTS HIRE ME FOR ━━ ► Emergency triage: servers down, services failing, breaches in progress ► Greenfield AWS/cloud environments built to security and compliance best practices ► CI/CD pipelines rebuilt to work reliably — no more failed deployments at 2am ► Self-hosted stacks that cut cloud bills without cutting uptime ► Kubernetes from scratch: EKS, k3s, RKE2 — setup, Helm, GitOps, day-2 operations ► HashiCorp Vault rollouts — eliminate hardcoded credentials across all pipelines ► Proxmox VE clusters: HA, live migration, Ceph storage, Proxmox Backup Server ► Network redesigns: Zero Trust, WireGuard mesh, BGP multi-homed, FortiGate, pfSense ► Ongoing managed infrastructure support and 24/7 incident response ► GCP solution design & delivery — Cloud Run, microservices, IAM, developer onboarding/offboarding ► Infrastructure, Security & Application Audits — server, network, database, cloud, and web stack ━━ INDUSTRIES SERVED ━━ SaaS · Fintech · Healthcare · E-commerce · Legal · Real Estate · Media · Education · Government · Telecoms · Startups · Enterprise. Single-server MVPs to multi-region, multi-account production environments. ━━ COMMUNICATION & PROCESS ━━ I don't disappear after the kickoff call. Clear updates at every stage, thorough documentation, and a proper handover on every engagement. Timezone-flexible. Slack, Teams, WhatsApp, Zoom, or Webex. If the work matters, it gets done right.

Overview: I'm Aashutosh Dhungana, a passionate and results-driven Software Engineer with 3+ years of experience building scalable, enterprise-grade applications using .NET Core, React, SQL Server, and modern cloud-native tools. I specialize in crafting efficient backend APIs, modern UIs, and intelligent data systems. I’ve worked extensively on complex domains like Fintech, ERP, and Asset Management, handling everything from secure wallet APIs and CRM modules to real-time claim negotiation systems using SignalR. I follow clean code practices, agile principles, and a problem-solving mindset. 🔧 My Key Skills Include: Backend: ASP.NET Core API/MVC, SignalR, Entity Framework, Identity Server, RabbitMQ, Hangfire, YARP, Ocelot Frontend: React.js, Redux, TypeScript, DevExtreme, jQuery, Tailwind Data & Infrastructure: SQL Server, MySQL, Dapper, Azure, Microsoft Graph API Telemetry & Monitoring: OpenTelemetry AI & RAG Systems: Implementing Retrieval-Augmented Generation (RAG) pipelines using LlamaIndex Architecture: Microservices, Multi-Tenant SaaS, Secure Auth (Azure AD), API Versioning, Rate Limiting 📈 Whether it's building an efficient API layer, designing intuitive UIs, integrating AI into your data workflow, or deploying secure, scalable services — I bring full-stack expertise that delivers real value. Let's bring your next project to life — send me a message and let’s talk!