Hi! I'm Raman Singh — Software Engineer & Builder
Building high-performance applications across MERN, PERN, Python & ML stacks. 2+ years engineering 10+ production projects with a 1912 LeetCode CP rating.
Full-Stack & MERN Engine
MERN Stack, Next.js 16, TypeScript, Redux & RTK — reactive, sub-second web applications.
Backend, PERN DBs & Cloud
PERN Stack, PostgreSQL, Prisma, Redis, AWS & Docker — high-concurrency microservices.
C++, OOPs & Competitive Prog.
C++, Object-Oriented Design, Data Structures & Algorithms — peak rating of 1912 on LeetCode.
AI / ML & RAG Pipelines
Python, FastAPI, RAG building & Vector DBs — context retrieval & autonomous workflows.
Featured Systems & Applications
Production-grade systems built by Raman Singh — spanning full-stack startups, developer tools, and AI RAG pipelines.
Oasian — Full-Stack Application Platform
Production web application engineered with MERN stack, Next.js 16 App Router, TypeScript, Redux Toolkit, PostgreSQL & Redis caching. Features high-speed server response SLA, JWT auth, and animated responsive dashboards.
Velor — Cloud Infrastructure & Execution Engine
High-throughput cloud management console and project engine powered by Express microservices, Prisma ORM, Redis rate limiters, Docker containerization, and automated CI/CD pipeline automation.
Weavit — Real-Time Interactive Canvas & Workspace
Collaborative interactive web workspace built with React 19, HTML5 Canvas, WebSockets pub/sub, custom state synchronization, and sub-16ms fluid canvas frame rates.
Vector ML & Autonomous RAG Intelligence Engine
Production AI microservice platform using Python FastAPI, Vector Embeddings (ChromaDB), LangChain LLM context pipelines, and Pydantic async validation for enterprise data retrieval.
What I Can Build & Deliver
Production-proven competencies recruiters and clients look for across full-stack development, backend security, database indexing, and AI microservices.
Full-Stack & Frontend Development
Pixel-perfect responsive layouts, dark glassmorphic themes, mobile optimization & micro-animations
End-to-end MERN/PERN platforms, Next.js 16 App Router, dynamic routing & client-side state handling
Centralized store architecture, Redux Toolkit slices, RTK Query automated caching & optimistic updates
Technical SEO meta strategy, SSR/SSG rendering, OpenGraph tags, Lighthouse 95+ audit & sub-second LCP
Backend, Security & Database Engineering
JWT session management, OAuth 2.0 logins, Role-Based Access Control (RBAC), bcrypt & secure HTTP cookies
High-throughput Express/Node.js architecture, custom middleware pipelines & OpenAPI specs
PostgreSQL B-Tree indexing, schema ERDs, Prisma ORM relation mapping, query optimization & pooling
Redis sliding-window rate limiters, session caching, DDoS mitigation, CORS & headers security
System Architecture & Algorithmic Rigor
SOLID design principles, inheritance, polymorphism, encapsulation, abstraction & design patterns
Advanced Graph algorithms, Dynamic Programming, Trees, Heap management & time/space optimization
1912 Peak CP contest rating on LeetCode (Raman_Khiva) with top-rank timed problem solving
Modern C++ (C++17/20), Standard Template Library (STL), memory management pointers & sub-40ms execution
AI / ML, Linux & Infrastructure
Power user in Ubuntu/Debian Linux, SSH remote machine administration, systemd processes, Bash scripting & firewall rules
Retrieval-Augmented Generation, vector similarity search, document chunking & LLM context injection
Async Python pipelines, Pydantic validation, streaming token endpoints & background task queues
AWS EC2/ECS remote hosting, Docker builds, Nginx reverse proxy & SSL domain configs
Technologies & Tools I Know
Categorized inventory of tools, languages, databases, and frameworks used across 10+ shipped production projects.
Frontend & UI
Backend & APIs
Databases & Caching
DevOps, Linux & Remote Admin
Languages & Core Systems
AI & ML Systems
Experience & Key Achievements
A proven history of building scalable web apps, AI pipelines, and solving complex algorithmic challenges.
Full-Stack & AI Systems Engineer
Built Oasian full-stack startup application alongside AI ML RAG retrieval engines, high-concurrency Node.js APIs, and Next.js 16 platforms.
Full-Stack Engineer & Product Builder
Built Velor automated developer project management platform and Weavit real-time collaborative workspace canvas.
Competitive Programmer & Algorithmic Specialist
Architected high-performance systems in C++ with OOP principles and achieved a peak rating of 1912 on LeetCode.
Get in Touch with Raman Singh
Whether you need a full-stack MERN/Next.js web application, an AI ML RAG pipeline, or algorithmic problem solving — feel free to reach out directly.