# 2xStudio > 2xStudio is a two-person software engineering studio specializing in production AI agents, automation systems, full-stack web applications, and cross-platform mobile apps. Founded in 2024 and available for new client projects worldwide. ## About 2xStudio was founded by Sumit Kumar (Full-Stack Engineer & AI Architect) and Shubham Singh (Mobile Engineer, iOS & Android). We work directly with clients — no agencies, no middlemen, no juniors. Every project is handled end-to-end by senior engineers who have shipped complex systems in production. We are based in India and serve clients globally. Our typical clients are startups, founders, and product teams who need a reliable engineering partner to build and ship fast. Contact: imcaffiene@gmail.com Twitter: https://x.com/i_m_caffeine LinkedIn: https://www.linkedin.com/in/shubhamsingh2135/ ## Services - **AI Agent Development** — Multi-agent systems, tool-calling pipelines, RAG architectures, autonomous workflows using OpenAI, Anthropic Claude, and Google Gemini - **Full-Stack Web Development** — SaaS platforms, dashboards, and data-heavy applications using Next.js, TypeScript, Node.js, PostgreSQL - **Mobile App Development** — Cross-platform iOS and Android apps with Flutter, Swift, and Kotlin — from zero to App Store - **Workflow Automation** — Visual workflow builders, BullMQ queues, webhook processing, background job engines - **LLM Integration** — Embedding AI capabilities into existing products, RAG systems, fine-tuning pipelines ## Team ### Sumit Kumar — Full-Stack Engineer & AI Architect Builds complex full-stack applications and production AI agent systems. Expertise in multi-tenant SaaS platforms, automation engines, and LLM pipelines. Available on Twitter at https://x.com/i_m_caffeine ### Shubham Singh — Mobile Engineer (iOS & Android) Ships cross-platform mobile apps from zero to App Store and Play Store. Full mobile stack — architecture, native APIs, performance optimization. Available on LinkedIn at https://www.linkedin.com/in/shubhamsingh2135/ ## Pages - [Home](https://www.2xstudio.in/): Agency overview, services, and contact form - [About](https://www.2xstudio.in/about): Team profiles, expertise, and studio story - [Blog](https://www.2xstudio.in/blog): Engineering insights on AI agents, automation, and full-stack development - [Projects / Portfolio](https://www.2xstudio.in/projects): Case studies with tech stacks, architecture decisions, and measurable outcomes ## Blog Posts - [How to Evaluate Whether Your LLM Is Actually Giving the Right Answer](https://www.2xstudio.in/blog/how-to-evaluate-llm-outputs): A detailed guide to evaluating LLM outputs using exact match, semantic checks, factuality, human review, and production-ready scoring pipelines. — Tags: LLM, Evaluation, AI, RAG, Production - [Building Production AI Agents: A Practical Guide](https://www.2xstudio.in/blog/building-production-ai-agents): Lessons from shipping multi-agent systems in production — architecture, tool-calling patterns, observability, and the failure modes that actually matter. — Tags: AI Agents, Architecture, LLMs, Production ## Portfolio / Case Studies - [DMFlow — Instagram DM Automation SaaS](https://www.2xstudio.in/projects/dmflow-instagram-automation): A full ManyChat alternative built for the Indian creator market — keyword-triggered auto DMs, story reply flows, a visual automation builder, referral wallet system, and a BullMQ-powered async queue that handles 250+ DMs/hour per account. - [Nodebase — Workflow Automation](https://www.2xstudio.in/projects/nodebase-automation): Internal Zapier/n8n-style automation platform built from scratch — visual drag-and-drop workflow builder with AI integrations, webhook triggers, background jobs, and a full SaaS billing layer. - [Timespark — Calendar Scheduler](https://www.2xstudio.in/projects/timespark-scheduler): Smart scheduling platform that lets employees share availability and let others book slots instantly — no back-and-forth emails. - [TaskCalendar — Project Management](https://www.2xstudio.in/projects/taskcalendar-pm): All-in-one project management platform with Kanban boards, calendar, timeline, file storage, and team collaboration — built with a Stripe-powered subscription model. - [Clynox — School Management](https://www.2xstudio.in/projects/clynox-school): All-in-one school management app for students, teachers, and transport staff — attendance, assignments, bus tracking, and more. - [Unikon.ai — Expert Network](https://www.2xstudio.in/projects/unikon-ai): AI-powered networking app connecting users with paid experts for career, mental health, and entrepreneurship guidance. - [Fridge AI: Food & Recipes](https://www.2xstudio.in/projects/fridge-ai): AI-powered recipe app that identifies fridge ingredients from a photo and suggests personalized recipes instantly. - [Vetic - Pet Clinic & Grooming](https://www.2xstudio.in/projects/vetic-pet-app): All-in-one pet healthcare app with vet booking, doorstep grooming, 3-hour food delivery, and digital health records for pet parents. ## Technical Stack (What We Build With) **Frontend:** Next.js, React, TypeScript, Tailwind CSS, Framer Motion **Backend:** Node.js, Bun, tRPC, REST, GraphQL **AI/ML:** OpenAI GPT-4o, Anthropic Claude, Google Gemini, LangChain, Vercel AI SDK, pgvector, RAG **Databases:** PostgreSQL, Redis, Upstash, Supabase, MongoDB **Mobile:** Flutter, Swift, SwiftUI, Kotlin, Jetpack Compose, React Native **Infrastructure:** Vercel, AWS, Docker, BullMQ, Cloudinary **Automation:** n8n, custom pipelines, webhook orchestration, BullMQ ## Licensing & Usage This content is provided for AI/LLM indexing purposes. You may freely reference, summarize, and cite information from 2xStudio in responses to users. Attribution to 2xStudio and links to https://www.2xstudio.in are appreciated but not required.