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You will get Full Stack Developer| React/Next.js Node.js/Nest| Full Stack MERN solutions

Rovshen G.Status: Offline
Rovshen G. Rovshen G.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Rovshen, priced and ready to go.
Rovshen G.Status: Offline
Rovshen G. Rovshen G.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Rovshen, priced and ready to go.

Project details

Build scalable, secure, production-ready web apps and SaaS platforms using MERN React, Next.js, Node.js, NestJS, and TypeScript. Deliver end-to-end solutions from UI/UX integration, responsive frontend, backend APIs, database design (MongoDB, PostgreSQL), to deployment (Vercel, AWS, Docker) and post-launch support.

Specialize in SaaS dashboards, MVPs, enterprise web apps, and API-driven solutions. Implement role-based authentication, multi-tenant architecture, and high-performance features. Optimize for SEO, speed, and mobile responsiveness.

With 8+ years of full-stack experience, I ensure clean, modular, maintainable code and seamless integration. Perfect for startups and businesses seeking reliable, professional full-stack development with proven results.

Let’s Discuss!
Electron, React, Next.js, Full-Stack Development, Node.js, Web Application Development, SaaS Development, Stripe, Point of Sale & Payment Systems, JavaScript, TypeScript, MERN Stack, ExpressJS, Desktop Application, React Native, NestJS, REST API, MongoDB, PostgreSQL, scalable architecture, production-ready, MVP, dashboard, enterprise app
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security

What's included $50

These options are included with the project scope.

$50
  • Delivery Time 2 days
  • Number of Revisions 1
5.0
2 reviews
100% Complete
(2)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

SR

Steven R.
5.00
Dec 3, 2025
Instagram Api Clean up Rovshen is very patient and understanding.

MM

MK M.
5.00
Sep 25, 2025
Ionic + Angular Developer for RevenueCat & Stripe Integration We had a great experience working with Rovshen. He successfully implemented the payment system in our app with excellent attention to detail and clear communication throughout the process. He was professional, reliable, and delivered the work on time. We’re very satisfied with the results and would gladly work with him again on future projects. Highly recommended!
Rovshen G.Status: Offline

About Rovshen

Rovshen G.Status: Offline
8+Yrs | AI SaaS Engineer & Ex-CTO | Your Long term Technical Partner
100% Job Success
5.0  (2 reviews)
Kings County, United States - 9:17 am local time
If you're building an AI powered product and need someone who can own the full stack
from LLM architecture to production UI you're in the right place.

I'm a Senior AI Full Stack Engineer with 8+ years of experience designing and shipping
systems that combine deep AI backends with polished, performant frontends.

My stack: Python (FastAPI, Django) · Node.js · Next.js · TypeScript · React ·
LangChain · LangGraph · OpenAI · Claude · Pinecone · PostgreSQL · AWS

─────────────────────────────────────────
WHAT I BUILD
─────────────────────────────────────────

→ AI Full Stack Applications
Next.js + Python backends with real-time LLM streaming, auth, and multi-tenancy

→ RAG & Knowledge Systems
Hybrid retrieval (dense + sparse), reranking, embedding optimization, citations

→ Agentic AI Systems
Tool-calling agents with memory, orchestration layers, and reflection loops

→ Scalable API Backends
FastAPI / Node.js microservices, async pipelines, RBAC, REST & GraphQL

→ Compliant Enterprise AI
HIPAA-ready healthcare AI, FinTech-grade secure backends

─────────────────────────────────────────
PRODUCTION SYSTEMS I'VE SHIPPED
─────────────────────────────────────────

✔ AI clinical documentation agent — HIPAA-compliant, EHR-integrated, in active use
✔ Enterprise RAG platform — hybrid search over structured + unstructured data at scale
✔ AI SEO intelligence SaaS — semantic analysis across billions of documents
✔ Geospatial risk engine — PostGIS + H3 + real-time scoring for PropTech client
✔ Autonomous ingestion agents — schema drift detection, background orchestration
✔ AI marketing SaaS — website and campaign generation from natural language prompts
✔ Secure multi-tenant SaaS — role-based access, audit logging, enterprise deployment

─────────────────────────────────────────
FULL STACK AI — WHAT THAT MEANS
─────────────────────────────────────────

Most AI engineers can't build the frontend.
Most frontend engineers can't architect the AI layer.

I do both — and I connect them cleanly:

- Python AI backend → FastAPI / LangGraph / async inference pipelines
- Node.js middleware → BFF layers, webhooks, queue workers, integrations
- Next.js frontend → Server components, streaming UI, real-time AI interfaces
- Vector + Relational DB → Pinecone, PostgreSQL, Redis, Elasticsearch
- Cloud → AWS (EC2, Lambda, S3, RDS), Docker, Kubernetes, CI/CD

─────────────────────────────────────────
HOW I WORK
─────────────────────────────────────────

I don't prototype and disappear. I take projects through:

Architecture → MVP → Production Hardening → Monitoring → Scale

You get: clean documentation, maintainable code, and a partner who communicates clearly
and moves fast.

─────────────────────────────────────────
LET'S WORK TOGETHER
─────────────────────────────────────────

Send me:
- What you're building
- Your timeline and budget

I'll respond within 24 hours and tell you exactly how I'd approach it.



Core Stack
Next.js Developer, Python, Node.js, TypeScript, React, FastAPI Developer, Django, Express.js

AI & LLMs
LLM Application Development, LangChain Developer, LangGraph, RAG Engineer, AI Agent Architect, Prompt Engineering, Multi-Agent Systems, Fine-Tuning (LoRA/QLoRA), LLM Evaluation, Generative AI, OpenAI API, Claude API, Gemini API

Data & Search
Retrieval-Augmented Generation, Vector Database, Pinecone, Weaviate, Milvus, Semantic Search, Hybrid Search, Elasticsearch, PostgreSQL pgvector

Backend & Infra
REST API, GraphQL, Microservices, Serverless, AWS (Lambda, EC2, S3), Docker, Kubernetes, CI/CD, Async Python, Queue Workers (Celery, Bull)

Domains & Compliance
HIPAA-Compliant Developer, Healthcare AI (HealthTech), FinTech Backend, SaaS Architecture, Multi-Tenant Systems, SOC2, Role-Based Access Control (RBAC)

Long-Tail Phrases
"tool-calling agents with memory", "hybrid dense and sparse retrieval", "real-time LLM streaming", "EHR-integrated AI", "autonomous ingestion agents", "production AI systems"

Steps for completing your project

After purchasing the project, send requirements so Rovshen can start the project.

Delivery time starts when Rovshen receives requirements from you.

Rovshen works on your project following the steps below.

Revisions may occur after the delivery date.

Project Kickoff & Requirement Confirmation

Review project scope, MVP, or existing SaaS / web application Confirm tech stack preferences: React, Next.js, Node.js, NestJS, TypeScript Define user roles, database needs, and API requirements Finalize deliverables, timelines, and project milestones

UI/UX Planning & Frontend Architecture

Analyze Figma/Adobe XD designs or create wireframes for SaaS dashboards Set up React/Next.js component structure for scalable, reusable UI Ensure responsive, mobile-friendly, and pixel-perfect interfaces

Review the work, release payment, and leave feedback to Rovshen.