What We Offer
Our SaaS development work covers the full product lifecycle — from the first architecture decision to a live, scalable system running in production. Here is exactly what you get when you work with us:- Custom SaaS Product Development: We design and build multi-tenant SaaS applications from scratch — subscription management, role-based access control, usage-based billing via Stripe, and tenant isolation built into the data layer from day one. No retrofitting security as an afterthought.
- AI-First Feature Development: We integrate large language model APIs, build RAG pipelines, and embed automation directly into your product workflows. If your SaaS needs an intelligent layer — document processing, smart search, automated responses — we build it as a core feature, not a bolted-on gimmick.
- API Development and Third-Party Integrations: Our backend is FastAPI-first, meaning your SaaS ships with a well-documented, high-performance API that can connect to Indian payment gateways (Razorpay, PayU), ERP systems, WhatsApp Business via Meta Cloud API, or any third-party service your business depends on.
- Ongoing SaaS Maintenance and Feature Iteration: After launch, we offer structured retainer engagements for teams that need continuous development — new feature releases, performance tuning, database optimization, and infrastructure scaling as your user base grows.
Why Choose Zargham Labs
There are thousands of development shops across India and Pakistan. Here is why serious product teams choose us specifically:- US-Registered, South Asia Pricing: Zargham Labs LLC is incorporated in the United States, which means you get the contractual credibility and professional standards of a US firm at 40–60% less than what a comparable US or UK agency would charge. For Indian startups managing runway carefully, this matters.
- Founder on Every Project: Zargham personally handles architecture, technical decisions, and client communication on every engagement. You are not being handed to an account manager or a sub-contracted team in a city you have never heard of. The person you speak to in discovery is the person building your product.
- Messenjo Is Live Proof: Our flagship product, Messenjo (messenjo.io), is a production WhatsApp Business automation platform built on the exact same stack we use for client SaaS projects. When we say we know how to build scalable, multi-tenant SaaS — we are not describing theory. We are describing something we have already shipped and operate.
- 8-Week MVP Delivery: We work within a structured 8-week build cycle that takes you from architecture to a deployed, working product. No open-ended timelines, no scope creep disguised as agile flexibility.
Our Tech Stack
Every technology in our stack is chosen for production reliability, not resume padding:- Python FastAPI: High-performance async backend that handles concurrent API requests efficiently — critical when your SaaS is serving hundreds of simultaneous users across Indian metros with varying connectivity.
- Next.js 14: Server-side rendered React frontend that gives your SaaS application fast initial load times, strong SEO indexability, and a modern component architecture that scales with your product roadmap.
- PostgreSQL + PgBouncer: Battle-tested relational database with connection pooling via PgBouncer — this combination handles the kind of transactional workloads that SaaS billing, user management, and multi-tenant data isolation require without collapsing under load.
- Celery + Redis: Asynchronous task processing for background jobs — email queues, scheduled reports, webhook processing, and any workload that should not block a user’s real-time experience.
- Docker + Traefik: Containerized deployment with automated SSL, reverse proxy routing, and environment parity between development and production. Your infrastructure is reproducible and not dependent on any single server configuration.
- n8n: Workflow automation layer for complex business logic that needs to connect your SaaS to external tools — CRMs, communication platforms, or internal dashboards — without writing custom integration code every time.
Our Process
We follow a fixed 8-week build cycle with clear deliverables at each phase:- Week 1–2 — Discovery and Architecture: We map your SaaS product requirements in detail — user roles, core workflows, data models, integration dependencies, and monetization logic. For Indian market products, this includes payment gateway selection (Razorpay vs Stripe), GST compliance considerations, and whether you need multi-language support. You receive a full technical architecture document before a single line of code is written.
- Week 3–4 — Core Development: Backend API, database schema, authentication system, and the primary user-facing features are built during this phase. We deliver working endpoints you can test against, not mockups or Figma screens.
- Week 5–6 — Integrations and Testing: Third-party APIs, payment gateways, email providers, and any automation workflows are connected and tested. We run load testing against expected concurrent user volumes and fix performance bottlenecks before they reach your users.
- Week 7–8 — Deployment and Handover: Your SaaS is deployed to production infrastructure, monitoring is configured, and we walk your team through every operational aspect of the system. You receive full documentation, environment variables, runbooks, and a 30-day support window post-launch.
Frequently Asked Questions
Can you work with Indian startups that are pre-revenue or early-stage?Yes — a significant portion of our clients are early-stage founders who need a technical co-founder equivalent rather than a large agency. We can work with constrained budgets by scoping an MVP tightly, focusing on the core value proposition, and building the architecture to scale once traction is proven. We will tell you honestly if your budget does not match your scope expectations before any contract is signed. Do you support Indian payment gateways like Razorpay or PayU?
Yes, we integrate Razorpay, PayU, and Cashfree as standard options for SaaS products targeting the Indian market. We handle subscription billing, one-time payments, webhook verification, and reconciliation logic. If your product also needs to accept international payments, we can run Stripe in parallel for non-Indian customers. How do you handle communication and time zones given you are based in Pakistan?
Pakistan Standard Time (PKT) and Indian Standard Time (IST) are only 30 minutes apart, which makes synchronous collaboration straightforward. We schedule daily or bi-weekly check-ins based on your preference, use structured async updates for progress reporting, and are available on Slack or WhatsApp for urgent questions during your working hours.