Open to remote hire

Software, AI & automation
services — built for production

I'm Ramesh Das, an agentic AI engineer and backend architect with 6+ years shipping real products. I design, build, and deploy custom software, AI agents, LLM and RAG systems, generative features, SaaS platforms, web apps, and business automation — end to end, with the same care I use on live products.

Agentic AI Custom Software LLM & RAG Generative AI Web & SaaS Automation Remote · Worldwide
6+
Years experience
50+
Systems shipped
100%
Production focus
Remote
Async delivery
In short

I offer software, AI, and automation work — custom apps, AI agents, LLM and RAG systems, generative AI, chatbots, FastAPI and Django backends, Next.js and React web apps, SaaS MVPs, websites, API integrations, and business process automation. Six-plus years, remote worldwide.

Engagement models: hourly from $25/hr, a monthly retainer from $1,899, or fixed-price projects (automation from $799, backend APIs from $1,199, SaaS MVP from $1,899, AI agent/RAG from $1,999). Start on WhatsApp at +977 9700864900 or email mrdasdeveloper@gmail.com.


What I build

Services across AI, software, and the web

Twelve focused lanes — pick one, or let me own the path from idea to production. Engagements ship with clean code, tests, docs, and a clear handoff.

AI Engineering

Agentic AI & Multi-Agent Systems

Agents that plan, call tools, and finish multi-step jobs — not just chat wrappers.

  • Tool-calling and function-calling agents
  • Multi-agent orchestration (LangGraph, CrewAI, AutoGen)
  • ReAct, planning, and structured workflows
  • Human-in-the-loop and guardrails
AI Engineering

LLM Applications & RAG Systems

Turn your docs and data into grounded, cited answers your product can trust.

  • Retrieval-augmented generation pipelines
  • Vector databases (Pinecone, Weaviate, Qdrant, Chroma)
  • Hybrid search, reranking, and embeddings
  • Prompt design and evaluation loops
AI Engineering

Generative AI Integration

Image, voice, and media AI with queues and GPU pipelines that hold up in production.

  • Text-to-image (ComfyUI, Replicate, FAL.ai)
  • Speech-to-text, TTS, and real-time transcription
  • OCR, face swap, video and audio AI
  • GPU inference on RunPod / cloud
AI Engineering

AI Chatbots & Voice AI

Assistants that know your business context and can take useful actions.

  • Customer support and sales chatbots
  • Knowledge-grounded Q&A assistants
  • Voice agents and conversational flows
  • Website, WhatsApp, and app integration
Software

Custom Software Development

Software shaped around your workflows — not a generic template.

  • Internal tools and admin dashboards
  • Enterprise platforms and portals
  • Data pipelines and integrations
  • Legacy modernization and refactors
Backend

Backend Architecture & APIs

APIs and services designed for real load, auth, and clear failure modes.

  • FastAPI, Django, and Node.js microservices
  • REST and GraphQL APIs
  • Event-driven architecture (Kafka, Celery)
  • Auth, RBAC, JWT/OAuth 2.0, and security basics
Full-Stack

Full-Stack Web Applications

End-to-end web apps — Next.js/React up front, Python or Node behind.

  • Next.js, React, and TypeScript
  • Python / Node backends
  • Realtime features (WebSockets)
  • Responsive UI that matches your product
Product

SaaS MVP Development

From idea to a launchable SaaS slice — auth, billing, and AI where it helps.

  • Multi-tenant architecture
  • Auth, billing, and subscriptions (Stripe, PayPal)
  • Credit systems and usage analytics
  • AI features and admin dashboards
Web

Website Development

Fast marketing sites and landing pages that load well and stay maintainable.

  • Marketing sites and landing pages
  • Portfolios and company sites
  • Core Web Vitals and SEO basics
  • Analytics and conversion tracking
Automation

Business & Workflow Automation

Replace repetitive clicks with schedules, queues, and integrations that keep running.

  • Scheduled jobs and recurring workflows
  • Webhooks, queues, and event pipelines
  • CRM, Stripe, and third-party integrations
  • Notifications and reporting automation
DevOps

Cloud, DevOps & Deployment

Deploy paths with CI/CD, containers, and enough monitoring to sleep at night.

  • Docker and Kubernetes
  • CI/CD pipelines (GitHub Actions)
  • AWS / GCP and GPU servers
  • Monitoring, logging, and error tracking
Advisory

AI Consulting & Architecture

Strategy and system design when you need a clear plan before a big build.

  • AI feasibility and roadmapping
  • System design and architecture reviews
  • Tech stack selection
  • Scalability and cost trade-offs

Buyer guides

Custom web development FAQs

Practical answers on hiring, pricing, security, timelines, deliverables, and post-launch support — written for founders and product teams evaluating a custom web partner.


At a glance

Services, deliverables, and starting prices

What each lane includes, who it fits, typical timeline, and starting price. Prices already include the current 50% direct-hire discount.

Service What you get Best fit Typical timeline Starting price
AI Agent / RAG System Autonomous agents, tool-calling, RAG knowledge base, vector search AI products, internal copilots 2–6 weeks from $1,999
AI Chatbot Integration Context-aware assistant on web, WhatsApp, or app Support, sales, lead-gen 1–3 weeks from $999
Generative AI Feature Text-to-image, speech-to-text, TTS, OCR, video/audio AI Media & content platforms 1–4 weeks from $1,199
Backend / API Development FastAPI/Django microservices, REST/GraphQL, auth, DB design Scalable products & platforms 2–6 weeks from $1,199
Full-Stack Web App Next.js/React frontend + Python/Node backend, deployed Startups & businesses 3–8 weeks from $1,499
SaaS MVP Auth, billing, multi-tenancy, AI features, admin dashboard Founders launching a product 4–10 weeks from $1,899
Website Development Fast, SEO-optimized marketing site or landing page Brands & personal sites 1–3 weeks from $499
Business Automation Workflows, webhooks, queues, scheduled jobs, integrations Teams cutting manual work 1–4 weeks from $799

What I can do for you

Outcomes, not just tickets

Founders, agencies, and in-house teams hire me as a senior IC who ships and owns the result.

💡 For founders and startups

  • Validate fast — an MVP or AI prototype in weeks, not months.
  • Launch a SaaS — auth, billing, multi-tenancy, and AI features that can go live.
  • Add AI to your product — chatbots, RAG, agents, or generative features.
  • Technical co-pilot — architecture guidance and honest feasibility calls.
  • Code you can keep — clear structure so you are not rewriting in six months.

🏢 For businesses and teams

  • Automate operations — cut manual work with always-on workflows.
  • Integrate systems — connect CRMs, payments, and internal APIs.
  • Modernize backends — migrate, refactor, and scale legacy systems.
  • Staff augmentation — senior capacity on demand without a long hire cycle.
  • AI enablement — bring LLMs and agents into existing products safely.

How we work

A clear, low-risk process

From first message to handoff — you always know what is next.

1

Discovery

A free call on goals, scope, constraints, and what success looks like.

2

Proposal

Plan, timeline, milestones, and a fixed or transparent quote — no surprise invoices.

3

Build

Iterative delivery with regular demos and direct Slack or WhatsApp access.

4

Ship and support

Deployment, documentation, handover, and optional ongoing maintenance.


Tooling

Production tech stack

Tools I use across AI, backend, data, cloud, and frontend.

Agentic & Generative AI
LangChain LangGraph LlamaIndex CrewAI OpenAI Anthropic Hugging Face Ollama DeepSeek ComfyUI Replicate FAL.ai RAG Pipelines Multi-Agent Systems Prompt Engineering
Backend
Python FastAPI Django Node.js Express.js Celery Kafka GraphQL REST APIs WebSockets Microservices TypeScript
Databases & Vector Stores
PostgreSQL MongoDB Redis MySQL Supabase Pinecone Weaviate Qdrant Semantic Search
Cloud & DevOps
Docker Kubernetes AWS GCP GitHub Actions Nginx CI/CD RunPod GPU Sentry
Frontend & Integrations
React.js Next.js Tailwind CSS SSR / SSG Stripe PayPal Firebase Twilio Webhooks

Why work with me

Senior quality, direct, and fairly priced

You talk to the person writing the code — not a rotating bench behind an agency invoice.

🎯

Production-first

Security, tests, observability, and scalability go in during the build — not as an afterthought.

Fast and senior

Six-plus years and shipped products mean fewer detours and clearer decisions.

💬

Direct communication

Talk to the person building it. Daily updates via Slack or WhatsApp.

💰

No agency markup

Direct hire rates — currently 50% off for clients who work with me straight.

🔐

Full ownership

Clean code, clear docs, and complete handover — the IP is yours.

🌍

Remote and flexible

Async-friendly across time zones, worldwide delivery.


In depth

What these services actually mean

Plain descriptions of the work, the stack involved, and when each lane makes sense.

AI development and AI agents

AI work here ranges from a single feature to a full agentic system. I build agents that plan, call tools, and finish multi-step jobs — with LangChain, LangGraph, CrewAI, and AutoGen when they help. That includes tool-calling, multi-agent orchestration, structured reasoning loops, memory, and human-in-the-loop guardrails.

If you need to build an agent, wire OpenAI, Anthropic, or Gemini into a product, or ship an autonomous workflow, this is core work for me. I currently lead AI on a production agentic SaaS platform.

LLM apps, RAG systems, and chatbots

LLM product work means turning models into features you can operate. With RAG, I connect your documents and databases so answers stay grounded and cited — less hallucination, more trust. That uses vector stores (Pinecone, Weaviate, Qdrant, ChromaDB, pgvector), embeddings, hybrid search, reranking, and prompt evals.

Common builds: a support chatbot, an internal knowledge assistant, document Q&A, or a voice agent. Chatbots can live on your site, WhatsApp, or inside your app.

Generative AI (image, voice, and video)

Generative features add media capabilities: text-to-image (ComfyUI, Replicate, FAL.ai), speech-to-text and TTS, real-time transcription, OCR, face swap, and video/audio pipelines. I also build the GPU inference paths and queues (RunPod, cloud GPUs) so these hold up under real traffic.

Custom software and backends

Custom software means software shaped around your business logic — internal tools, admin dashboards, portals, and data pipelines. On the backend I design APIs and services with FastAPI, Django, and Node.js, using PostgreSQL, Redis, and MongoDB. That covers REST and GraphQL, event-driven patterns (Kafka, Celery), auth (JWT/OAuth 2.0, RBAC), and performance work.

Web apps, websites, and SaaS MVPs

Web app and website work uses Next.js, React, and TypeScript up front with Python or Node behind. For founders, SaaS MVP work gets a launchable slice — auth, Stripe/PayPal billing, multi-tenancy, usage/credits, and AI features where they help. Fits building a SaaS, shipping an MVP, or adding AI to an existing app.

Business automation, API integration, and cloud

Automation replaces repetitive manual work with schedules, webhooks, queues, and event pipelines. I also handle API integration with Stripe, CRMs (HubSpot, Salesforce), and internal services, plus notifications and reporting. Delivery usually includes Docker, Kubernetes, CI/CD (GitHub Actions), AWS/GCP, and monitoring with Sentry and similar tools.


50% off — direct hire

Engineering rates. Direct hire.

Hourly, monthly retainer, or fixed-price — clear pricing when you hire me without an agency.

Hourly Rate
Market Standard: $60 – $80
$25–29-50% Off
Pay-as-you-go · Billed weekly

  • AI engineering: $29/hr
  • Full-stack dev: $25/hr
  • Backend engineering: $29/hr
  • Business automation: $25/hr
  • Flexible, async-friendly schedule
Book hourly work
Fixed-Price Project
Market Standard: Market Value
CustomQuote
Milestone-based · Clear scope

  • Automation project: from $799
  • Backend API project: from $1,199
  • SaaS MVP: from $1,899
  • AI agent / RAG: from $1,999
  • Invoiced at completed milestones
Request a quote

💡 Direct clients only: These prices are for hiring me straight — no agency cut. They already include my current 50% discount.


FAQ

Frequently asked questions

Straight answers. Schema markup matches what you see here.

What services do you offer?

Custom software, agentic AI and multi-agent systems, LLM apps and RAG pipelines, generative AI integration, chatbots and voice AI, backend architecture and APIs, full-stack web apps, SaaS MVPs, websites, business automation, and cloud/DevOps.

How do you engage with clients?

Three models: hourly consulting, a monthly retainer (full-time equivalent), and fixed-price milestone projects. Everything is remote, with direct Slack or WhatsApp.

What technologies do you use?

Python, FastAPI, Django, Node.js, Next.js, React, TypeScript, PostgreSQL, Redis, LangChain, LlamaIndex, OpenAI and Anthropic APIs, vector databases, Docker, Kubernetes, and major cloud platforms.

Do you build production-ready systems?

Yes. Engagements target production quality — security, testing, observability, scalability, and a clean handoff. I currently lead AI on a live agentic SaaS platform.

Can you add AI to my existing product?

Yes. I regularly integrate LLMs, RAG, agents, chatbots, and generative features into existing codebases without tearing out what already works.

How do we start?

Message me on WhatsApp or email for a free discovery call. I assess the need and send a clear plan, timeline, and quote — no obligation.



Have a project in mind?

Free consultation, clear scope, senior delivery. Tell me what you are trying to ship.


Get in touch

Contact

Open to software, AI, backend, full-stack, and automation projects — remote or contract.

Services & Expertise

AI Development Services Agentic AI Development LLM Application Development RAG Development Generative AI Integration AI Agent Development AI Chatbot Development Machine Learning Integration Custom Software Development Backend Development FastAPI Development API Development Microservices Development Python Development Full-Stack Development Web App Development Next.js Development React Development SaaS MVP Development Website Development Business Automation Workflow Automation API Integration Services Stripe Integration Cloud Deployment DevOps Services Docker & Kubernetes CI/CD Pipelines Hire AI Developer Remote Software Engineer
WhatsAppDiscuss your project