Custom software,
shipped like product.
We're the senior product team you can't staff in-house — from AI-native products and agent integrations to Shopify apps and full platforms, owned end to end. Not an agency. Not a throwaway MVP shop.
What we build
Senior engineering for the work that decides whether a product ships. Pick a capability or hand us the whole thing.
End-to-end product build
0 → 1 to launch — product architecture, backend, web, mobile, and infra, owned end to end. One senior team, not five vendors.
- ▸Architecture → launch
- ▸Web + mobile + API
- ▸Cloud infra & CI/CD
Agentic AI & LLM
Multi-agent systems, LLM tools, and RAG shipped to production — with evals and guardrails, not a flaky demo.
- ▸Multi-agent pipelines
- ▸RAG & retrieval
- ▸Evals & guardrails
MCP & agent-ready APIs
Make your product usable by AI agents — MCP servers, tool APIs, OAuth scopes, and Schema.org so assistants can act on it.
- ▸MCP servers
- ▸Agent-ready APIs
- ▸OAuth 2.1 + Schema.org
Shopify apps & storefronts
Embedded Shopify apps and custom storefronts — including agentic commerce that AI shoppers can browse and buy from.
- ▸Embedded Shopify apps
- ▸Custom storefronts
- ▸Agentic commerce
Platform capabilities
The hard parts you can't easily staff: multi-tenancy, billing, auth, real-time, search, and data pipelines.
- ▸Multi-tenant billing
- ▸Real-time & events
- ▸Search & pipelines
Codebase rescue
Inherited a mess or a stalled build? We stabilize, re-architect, and get you shipping again.
- ▸Audit & triage
- ▸Re-architecture
- ▸Test & CI foundation
Fractional senior team
Embed a senior engineering team for a fixed term. Product-grade from day one, no ramp tax.
- ▸Embedded delivery
- ▸Fixed monthly scope
- ▸Senior-only
Architecture & due diligence
Technical review, architecture, and a plan you can actually execute — before you commit budget.
- ▸Technical due diligence
- ▸System design
- ▸Delivery roadmap
Scope. Ship. Scale.
Three phases, kept deliberately simple. No theatre, no big-bang reveals.
Scope
We map the problem, constraints, and success criteria before a line of code. You get a clear plan, milestones, and a fixed shape of work.
Ship
Production-grade increments — typed, tested, reviewed, deployed. You see working software early and often, never a big-bang reveal.
Scale
We harden, document, and hand off — or stay on to keep building. The code is yours: readable, owned, and maintainable by your team.
Shipped, in production
Products we designed, built, and shipped end to end — from shared logistics infrastructure to AI-native fintech.
Tarasvin
A shared driver-pool platform running day-prior scheduled B2B routes and real-time parcel & ride dispatch on one supply pool — with a public API and an MCP server for agent-driven booking.
Vanigar
AI-native equity research for Indian retail investors — a multi-agent LLM desk reads filings, charts, and news across the NIFTY and returns a BUY / HOLD / SELL verdict with its reasoning.
Founders who shipped with us
The teams behind the products above — on what it's like to build with Saasi.
Saasi built our entire AI research desk end to end — the six-agent LLM pipeline, the RAG stack, and native web, iOS and Android apps — and shipped it production-grade. They operated like our own senior team, not a vendor. We went from idea to a live product without ever staffing up.
We handed Saasi a genuinely hard problem — one shared driver pool serving scheduled B2B routes, parcels, and rides — and they delivered 30+ services launch-ready, with a public API and an MCP server on top. Everything is typed, tested, and ours. The best engineering partner we've worked with.
Have something that needs to ship?
Tell us the shape of the problem. We'll come back with a plan, a timeline, and a fixed scope.