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Mursalin

Freelance AI product developer building AI agent SaaS, AI-powered mobile apps, and MVPs for clients worldwide — from Rajshahi, Bangladesh.

Rajshahi, Bangladesh · UTC+6

hello@mursalinsdesk.comWhatsApp +880 1738 753102

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ProfessionalAI Agent SaaS Products

AI Agent SaaS Products - Professional

$4,999/project

Multi-tenant AI SaaS with RAG and agent workflows

5-8 weeksStartups building an AI-first SaaS that needs to onboard teams, meter usage, and scale past the first hundred customers.

Where I work from: Rajshahi, Bangladesh · remote worldwide · UTC+6 · AI Agent Developer in Bangladesh — LLM Agents, RAG and Tool Calling

A complete multi-tenant SaaS built around AI agents: retrieval over your customers' data, multi-step tool workflows, team workspaces, tiered billing, and the observability you need to run it in production.

What's Included

Multi-step agent workflows with tool calling
RAG pipeline (ingestion, chunking, vector search)
Multi-tenant data isolation
Team workspaces with roles & invites
Stripe billing with 3 plans + usage add-ons
Streaming chat & agent UI
LLM cost & quality observability (tracing, evals)
Guardrails, rate limits & abuse protection
Admin panel
CI/CD with automated tests
2 weeks post-launch support

Not Included

Mobile apps
Custom model fine-tuning
SOC 2 audit preparation

Key Features

Agent Workflows
RAG Pipeline
Multi-Tenant
Team Workspaces
Tiered Billing
LLM Observability

Ready to Get Started?

Starting at $4,999 for this package

Start ProjectView All Pricing

Related projects

Case studies built with the same stack and patterns.

  • Contently AI — multi-model social content SaaS
  • Virtual Client — multi-tenant AI voice coaching platform

Related reading

Costs, architecture and how-to guides for this kind of work.

  • AI agent development cost in 2026
  • Building a multi-tenant AI agent SaaS with Next.js, NestJS and Stripe

Compare Packages

Starter
$1,499/project

Launch a single-purpose AI agent product

2-3 weeks

What's included

  • One production AI agent (LLM + tool calling)
  • Prompt design with an evaluation set
  • User auth with email + Google sign-in
  • Stripe subscription billing (1 plan)
  • Per-user usage metering & limits
  • Next.js dashboard
  • Cloud deployment & uptime monitoring

Ideal for

Founders validating an AI product idea who want paying users before building a full platform.

Not included

  • Multi-agent orchestration
  • RAG over private data
  • Team/workspace features
  • Model fine-tuning
Get Started
Complete
$12,999/project

Multi-agent platform built for scale and compliance

10-16 weeks

What's included

  • Multi-agent orchestration (planner/worker, handoffs)
  • Model routing & fallback across OpenAI, Anthropic, Groq and open models
  • Enterprise RAG (hybrid search, reranking, permission-aware retrieval)
  • SSO (SAML/OIDC), audit logs & data-retention controls
  • Automated eval pipeline with regression gates
  • Background jobs & queue system
  • Kubernetes deployment with autoscaling
  • Full observability (tracing, metrics, cost dashboards)
  • Security review & threat model
  • Architecture decision records (ADRs)
  • 60 days post-launch support

Ideal for

Companies deploying AI agents across teams or customers who need reliability, governance, and cost control at scale.

Not included

  • 24/7 on-call support
  • Model training from scratch
  • On-prem hardware procurement
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AI Agent SaaS Products — questions

What this package covers, and how working with me from Bangladesh runs

A chatbot answers questions in a conversation. An AI agent takes actions: it calls tools, reads your data, runs multi-step workflows and decides what to do next based on the result. In practice that means function calling, memory, guardrails and evaluation sets so it behaves predictably. If your product needs to do work rather than just talk, you need an agent, and that is what my AI agent SaaS packages are built around.

A focused single-agent product with sign-in, Stripe billing and usage metering takes 2-3 weeks. A multi-tenant SaaS with RAG over customer data, agent workflows, team workspaces and LLM observability takes 5-8 weeks. Enterprise multi-agent platforms run 10-16 weeks. The first week is always prompt and tool design with an evaluation set, because getting the agent's behaviour right early saves rework later.

I'm a freelance AI product developer from Rajshahi, Bangladesh, working under the name Mursalin's Desk. I build AI agent SaaS products, AI-powered mobile apps with React Native and Expo, MVPs for startups, AI integrations for existing products, and full-stack web platforms on Next.js, NestJS and PostgreSQL. I also take on AI strategy and fractional CTO engagements for founders who need senior technical leadership without a full-time hire.

I'm based in Rajshahi, Bangladesh, and also work from Dhaka. Most of my clients are remote — startups and small companies in the US, UK, Canada, Australia and the EU. I can meet in person in Rajshahi or Dhaka when that helps, but every project I run is set up to work fully remotely from day one: shared repo, project board, async updates and scheduled calls.