Venture Studio & Startup Factory

San Engineer

Engineering the Future of AI-Driven SaaS & messaging Automation. We conceptualize, build, own, and scale proprietary digital systems.

Our SaaS Portfolio

Proprietary Digital Products Built & Scaled In-House

StroomChat

AI Chatbot & Messaging Automation SaaS — Meta Tech Provider

StroomChat - AI Chatbot & Messaging Automation SaaS — Meta Tech Provider logo

An enterprise-grade messaging automation platform and official Meta Tech Provider. StroomChat orchestrates high-throughput messaging pipelines across WhatsApp, Instagram, Facebook Messenger, and Threads, empowering businesses to run advanced multi-agent workflows, webhook routing systems, and contextual AI chatbots.

Stafsus

AI-Powered Digital Assistant & Onboarding SaaS

Stafsus - AI-Powered Digital Assistant & Onboarding SaaS logo

An AI-first onboarding and corporate training SaaS that accelerates team integrations. Stafsus utilizes advanced generative AI models to programmatically build learning modules, draft personalized training tracks, automate operational checklists, and enable instant semantic knowledge search across company databases.

Centralized Cloud Architecture

High-Performance Tech Stack Powering Multi-Tenant SaaS

Operating a growing multi-SaaS ecosystem requires a robust, unified cloud infrastructure. We engineer centralized systems that distribute cloud resources, scale database instances, and execute high-speed API layers to handle millions of requests for StroomChat and Stafsus.

1. High-Throughput Webhook Engine

Processes real-time webhook payloads from Meta messaging channels with sub-millisecond latencies, utilizing central event queues to route user interactions reliably.

2. AI Model Inference & Scaling

Utilizes Google Gemini and other advanced LLM APIs over centralized cloud request pipelines, offering multi-tenant context handling and low-latency chatbot reasoning.

3. Vector Database & Semantic Indexing

Runs dedicated Postgres/PGVector storage clusters to manage, index, and query corporate training document embeddings with high recall accuracy for Stafsus.

4. Distributed Multi-Tenant Architecture

Ensures secure microservice operations, managing discrete customer tenants, database connection pooling, and auto-scaling container configurations across cloud clusters.

Our Venture Studio Manifesto

We believe that the best software is built when design meets absolute system ownership. Unlike traditional agencies, dev shops, or software consultancies, we do not build software for clients. We direct 100% of our code, engineering talent, and centralized cloud architecture toward building and growing our own proprietary platforms. By holding ourselves accountable to our own products, we build software engineered for extreme reliability, exceptional design, and long-term global scalability.

Founders & Builders

Ikhsan Sugiarto

Ikhsan Sugiarto

Founder & Lead Architect

Ikhsan Sugiarto is a tech builder, full-stack engineer, and the solo founder behind s19i. With extensive experience in architecting real-time messaging services, AI workflows, and multi-tenant database clusters, Ikhsan builds and scales s19i's proprietary products. He leads all cloud system deployments, ensuring high accessibility, low latencies, and modern engineering standards across StroomChat and Stafsus.

Studio Core Values

  • Absolute Product Ownership

    We operate strictly as a product builder. We do not work for external clients. We devote 100% of our code, resources, and vision to scaling our own digital ecosystem.

  • AI-First System Design

    We build microservices architected from the ground up to integrate generative AI and vector search technologies natively into daily operational workflows.

  • High-Availability Infrastructure

    We design low-latency webhook routing pipelines, multi-tenant databases, and shared container platforms that scale easily to millions of user events.

Get In Touch

Whether you are looking for investment opportunities, we would love to connect with you. Reach out to our founder directly.

founder@s19i.com