How we build
Engineering
Four disciplines, one team. The same people scope a system, architect it, ship it and keep it running once real users depend on it.
What we build
- 01
AI systems
Retrieval pipelines, multi-scope vector search, streamed model responses, and agentic orchestration across providers.
Groq, Claude and OpenAI behind one interface
- 02
Platform backends
Multi-tenant services with role-based access, payments, document workflows and background scheduling.
Stripe, HubSpot, Salesforce and Shopify in production
- 03
Interfaces
Server-rendered React applications with considered motion, accessible interaction and measured performance budgets.
Budgets enforced in the test suite, not asserted
- 04
Mobile
Cross-platform React Native applications, including hardware integrations such as NFC.
One codebase, both stores, real hardware
Zarsaaz Tech Radar
We hold strong architectural convictions. Explore the core technologies we rely on in production, active trials, and obsolete paradigms we strictly avoid.
Next.js 16 (App Router)
Our standard for enterprise web applications: server-first components, streaming SSR, and zero-runtime bundle overhead.
TypeScript (Strict)
Strict compilation is mandatory across all client and internal codebases; zero un-typed code reaches production.
Python (FastAPI & PyTorch)
High-throughput async endpoints for ML inference, embeddings generation, and vector pipeline orchestration.
PostgreSQL + pgvector
Combines bulletproof ACID transactions with HNSW vector indexing without introducing external distributed state.
Redis 7 Cluster
Used for sub-millisecond session caching, rate-limiting token buckets, and Celery asynchronous job queueing.
Docker & Compose
Hermetic containerization guaranteeing 100% parity between local development, multi-region staging, and production.
vLLM & Groq LPU
Extremely fast token generation (<40ms TTFT) for low-latency agentic tool-calling workflows and structured output.
Qdrant Vector Engine
Specialized Rust-backed vector search for high-scale enterprise multi-tenant embeddings (>10M vectors).
Bun Runtime
Ultrafast package management and local script execution, cutting CI build times by over 60%.
Turborepo
Intelligent remote caching across multi-package vertical lines like Build AI and client enterprise suites.
Rust (WASM & Filters)
Evaluating for in-browser client-side embedding calculation and zero-garbage-collection edge proxy filters.
DuckDB
Embedded analytical engine for instant zero-server client BI dashboards and Parquet file queries.
Mojo Language
Investigating high-performance kernel compilation bridging Python syntax with hardware accelerators.
Client-Only SPAs (CRA)
Avoided due to poor SEO, high Largest Contentful Paint (LCP) penalties, and sluggish initial script evaluation.
Untyped JavaScript
Completely deprecated. Runtime type errors and unverified null references are unacceptable in production.
Template Chatbots
Rigid rule-based bots that cannot interact with business databases or execute verified tools are obsolete.
Built for real-world reliability, not just the launch day.
We hold our work to uncompromising standards. Your website and applications will feel instantaneous to your customers, protect your business reputation, and run smoothly without unexpected headaches.
Every feature is thoroughly checked before launch so your customers never experience broken updates.
Pages and actions open in the blink of an eye, keeping every visitor engaged from the first second.
Runs smoothly around the clock without crashing or freezing, even during your busiest sales spikes.
Businesses and founders choose to stay, scale, and build their core products with us year after year.
The standard
Production is the requirement, not the follow-up.
Access control, payments, failure paths and observability are part of the first build, because they are the parts that cannot be retrofitted cheaply. Performance and accessibility budgets live in the test suite. A claim that nothing automated checks is only a preference.
Engineered around your timeline.
Whether launching a new AI platform or modernizing an enterprise system, we build, test, and ship in fast, transparent 2-week sprints.
AI Platforms & Autonomous Agents
Custom intelligent agents, vector search pipelines, and LLM tool integrations that automate complex workflows.
Enterprise ERPs & Operational Systems
High-throughput, offline-first operational software built for multi-branch sync, billing, and zero downtime.
High-Growth B2B SaaS & Digital Products
Modern web applications with automated subscriptions, real-time analytics, and delightful user experiences.
Technology Stack Overview
Say hi, and let’s get to work
Let’s discuss your ideas
- Construction Company
- Mandi System
- Build AI
- Lonesyte