𝐀𝐈 𝐅𝐮𝐥𝐥𝐒𝐭𝐚𝐜𝐤 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐢𝐧𝐠 𝐋𝐞𝐠𝐚𝐜𝐲 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
𝟏𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝, 𝐟𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤, 𝐒𝐚𝐚𝐒, 𝐚𝐧𝐝 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐮𝐬𝐢𝐧𝐠 .𝐍𝐄𝐓, 𝐂#, 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭, 𝐚𝐧𝐝 𝐦𝐨𝐝𝐞𝐫𝐧 𝐀𝐈 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬.
I work with startups, product teams, and established businesses to build new products, modernize legacy applications, and evolve existing systems into secure, scalable, production-ready platforms.
My focus is on combining strong backend engineering + AI capabilities + modern architecture to improve performance, maintainability, development speed, and long-term scalability.
I also work with a strong engineering team covering frontend, backend, DevOps, QA, cloud, and AI integration, allowing us to handle complete product development without technology gaps.
➤ 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐖𝐈𝐓𝐇?
▸ 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Build AI-powered backend systems using OpenAI, Claude, Gemini, and LLM APIs, including AI agents, RAG systems, intelligent APIs, automation workflows, document processing, and AI-powered business features.
▸ .𝐍𝐄𝐓 / 𝐂# 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Develop and scale enterprise applications using ASP.NET Core, C#, Entity Framework Core, REST APIs, SQL Server, microservices, secure authentication, background processing, and cloud infrastructure.
▸ 𝐋𝐞𝐠𝐚𝐜𝐲 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧
Modernize legacy applications without disrupting business operations. This includes legacy .NET/C# systems, outdated architectures, database modernization, API modernization, monolith-to-microservices migration, cloud migration, performance optimization, and gradual technology upgrades.
▸ 𝐏𝐲𝐭𝐡𝐨𝐧 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Build high-performance backend systems using Python, FastAPI, Django, and Flask with PostgreSQL, MySQL, MongoDB, Redis, Celery, background processing, automation, third-party APIs, and AI integrations.
▸ 𝐒𝐚𝐚𝐒 & 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Build SaaS products from MVP to production, including multi-tenant architecture, RBAC, authentication, subscription/billing workflows, APIs, dashboards, integrations, analytics, and scalable backend infrastructure.
Lovepreet S. earns an estimated $9.6k/mo. That's 6.9× the typical freelancer and more than 99.86% of everyone we track.
▸ 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Develop complete applications using React/Next.js on the frontend with .NET, C#, Python, or Node.js on the backend, including database architecture, APIs, authentication, real-time functionality, cloud deployment, and CI/CD.
➤ 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒
▸ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & .𝐍𝐄𝐓 / 𝐂#
• C# • .NET • ASP.NET Core • .NET 6+
• Entity Framework Core • SQL Server
• REST APIs • GraphQL • Microservices
• JWT • OAuth2 • RBAC • WebSockets
• Swagger / OpenAPI • Serilog
• Azure DevOps • GitHub Actions
▸ 𝐏𝐲𝐭𝐡𝐨𝐧
• Python • FastAPI • Django • Flask
• SQLAlchemy • Celery • Redis
• Pandas • NumPy
• Async APIs • Background Processing
• REST APIs • Third-party Integrations
▸ 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤
• React • Next.js • TypeScript
• Redux • Zustand • React Query
• Tailwind CSS • Material UI • Bootstrap
• Node.js • Express.js • NestJS
• REST APIs • GraphQL
▸ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞
• PostgreSQL • MySQL • SQL Server
• MongoDB • Redis • Elasticsearch
• Database Design & Optimization
• Microservices • API Architecture
• Legacy System Modernization
• Monolith-to-Microservices Migration
▸ 𝐀𝐈 & 𝐋𝐋𝐌
• OpenAI API • Claude API • Gemini
• AI Agents • Multi-Agent Systems
• LangChain • LangGraph
• RAG Systems • Vector Databases
• Prompt Engineering
• AI Workflow Automation
• AI-powered APIs & Applications
▸ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬
• AWS • Azure • DigitalOcean
• Docker • Kubernetes
• CI/CD Pipelines
• GitHub Actions • GitLab CI
• NGINX • Load Balancing
• Monitoring & Logging
➤ 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄?
• 15+ years of backend and full-stack engineering experience
• Strong .NET / C# / Python expertise for enterprise systems
• Experience modernizing and scaling legacy applications
• SaaS architecture and end-to-end product development experience
• AI/LLM integration into existing and new applications
• Strong understanding of APIs, databases, microservices, security, and cloud
• Focus on maintainable architecture, performance, scalability, and business continuity
• Full engineering support across development, QA, DevOps, cloud, and AI
• Post-deployment support up to 30 days for stability and improvements
𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐞 𝐘𝐨𝐮𝐫 𝐋𝐞𝐠𝐚𝐜𝐲 𝐒𝐲𝐬𝐭𝐞𝐦 𝐨𝐫 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐍𝐞𝐱𝐭 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐒𝐚𝐚𝐒 𝐏𝐫𝐨𝐝𝐮𝐜𝐭?
Send me your requirements and I can help with architecture, modernization strategy, backend development, AI integration, SaaS development, or complete full-stack implementation.