You will get Full-Stack Developer .NET Core, React & Angular | Web Apps & REST APIs
Project details
I am a Full-Stack Developer specializing in .NET Core, React, and Angular, building modern, secure, and scalable web applications and REST APIs. I deliver complete end-to-end solutions—from responsive frontend interfaces to robust backend systems and optimized databases.
My expertise includes ASP.NET Core Web APIs, React and Angular frontend development, database design with SQL Server, authentication and authorization, and performance optimization. I build dashboards, enterprise systems, SaaS platforms, and custom web applications with clean, maintainable code and a strong focus on user experience.
Whether you need a new full-stack application, API development, frontend integration, or improvements to an existing system, I provide reliable solutions aligned with your business goals.
Let’s discuss your project and build a high-quality web application together.
My expertise includes ASP.NET Core Web APIs, React and Angular frontend development, database design with SQL Server, authentication and authorization, and performance optimization. I build dashboards, enterprise systems, SaaS platforms, and custom web applications with clean, maintainable code and a strong focus on user experience.
Whether you need a new full-stack application, API development, frontend integration, or improvements to an existing system, I provide reliable solutions aligned with your business goals.
Let’s discuss your project and build a high-quality web application together.
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included $150
These options are included with the project scope.
$150
- Delivery Time 3 days
- Number of Revisions 1
- Number of Pages 3
- Design Customization
- Responsive Design
- Source Code
Frequently asked questions
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RA
Rafaqat A.
Apr 16, 2026
Need Help Adding Google Sign-In to React Native App
Great experience working with him. He quickly resolved the Google Sign-In integration in my React Native app, handled the tricky setup parts smoothly, and ensured everything worked end to end with my backend. Very committed, clear in communication, and delivered on time. Highly recommended.
SE
Shannon E.
Mar 30, 2026
Move File Upload from Local Storage to Azure Blob in .NET API
Amazing experience! Quick, efficient, and high-quality work on migrating file storage to Azure Blob. Everything works flawlessly. Strongly recommended!
JS
Jay S.
Jan 5, 2024
Full-Stack C#.NET / JavaScript / SQL / Azure Developer
About Siddahant
AI Full Stack Engineer | LLMs, AI Agents & Automation | Saas Developer
100%
Job Success
Bangor, United Kingdom - 8:15 pm local time
I work end-to-end: architecture → development → AI integration → deployment, with a strong focus on scalability, clean code, and long-term maintainability. I’ve delivered modern SaaS products, AI-powered tools, admin dashboards, and cross-platform apps for startups and growing businesses.
My core strength is building real AI systems, not just API integrations. I design and deploy LLM pipelines (RAG, vector search, evaluation, tracing) and AI agents that operate reliably in production.
𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈𝐬
- Supabase (Postgres, Auth, RLS, Edge Functions)
- Secure authentication (SSO, OAuth, role-based access)
𝐀𝐈 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐋𝐋𝐌𝐬
- OpenAI (GPT-5o), Claude, Gemini, Vertex AI
- RAG systems (Pinecone, Qdrant, OpenSearch)
- LangChain, LangGraph, LangSmith, Langfuse
- Prompt engineering, evaluation, and tracing
- Custom model deployment (vLLM, Mistral, Qwen, Gemma)
- AI chatbots, voice agents (Vapi, Retell AI), and agentic workflows
𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬
- Tools: n8n, Make, LangChain
- AI agents for support, content, and internal ops
- Workflow automation with APIs and event-driven systems
- Integration with CRMs, databases, and third-party tools
𝐀𝐈 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 & 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐌𝐞𝐝𝐢𝐚
- Video: Runway, Veo 3, Pika
- Image & Audio: Midjourney, ElevenLabs, Whisper
𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬
- AWS, GCP, Vercel, Netlify
- CI/CD pipelines, Docker, Git
- Secure, scalable deployments
🚀 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝
- Scalable SaaS platforms & admin dashboards
- AI-powered applications & internal tools
- Document-aware chat systems (RAG-based assistants)
- AI agents for automation and decision-making
-- Real-time apps with live data and chat
- Cross-platform mobile apps (Flutter, React Native)
💡 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
- Production-Ready: I build AI systems designed for the real world, not prototypes.
- Scale & Security: Strong focus on performance and data protection.
- Business Alignment: I translate business needs into robust technical systems.
- Structured Execution: Clear communication and a proven track record of long-term success.
If you’re looking to build a scalable SaaS product or an AI-driven system that actually works in real-world conditions, I can help you design and deliver it end-to-end.
Steps for completing your project
After purchasing the project, send requirements so Siddahant can start the project.
Delivery time starts when Siddahant receives requirements from you.
Siddahant works on your project following the steps below.
Revisions may occur after the delivery date.
step 1
requirement Gathering
step 2
start work