Engineering the Future of AI-Driven SaaS & messaging Automation. We conceptualize, build, own, and scale proprietary digital systems.
Proprietary Digital Products Built & Scaled In-House
AI Chatbot & Messaging Automation SaaS — Meta Tech Provider
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.
Learn more about StroomChat (opens external site)AI-Powered Digital Assistant & Onboarding SaaS
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.
Learn more about Stafsus (opens external site)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.
Processes real-time webhook payloads from Meta messaging channels with sub-millisecond latencies, utilizing central event queues to route user interactions reliably.
Utilizes Google Gemini and other advanced LLM APIs over centralized cloud request pipelines, offering multi-tenant context handling and low-latency chatbot reasoning.
Runs dedicated Postgres/PGVector storage clusters to manage, index, and query corporate training document embeddings with high recall accuracy for Stafsus.
Ensures secure microservice operations, managing discrete customer tenants, database connection pooling, and auto-scaling container configurations across cloud clusters.
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.
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.
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.
We build microservices architected from the ground up to integrate generative AI and vector search technologies natively into daily operational workflows.
We design low-latency webhook routing pipelines, multi-tenant databases, and shared container platforms that scale easily to millions of user events.
Whether you are looking for investment opportunities, we would love to connect with you. Reach out to our founder directly.
founder@s19i.com