AI Systems Engineer
I'm Jack Mkimbo, a Software Engineer specializing in AI systems and full-stack product development. I build production-grade AI agents, multi-tenant SaaS platforms, and API integrations — from system design through to self-hosted deployment.
I'm a software engineer and consultant based in Roanoke, Virginia, specializing in AI systems integration and full-stack product engineering. I build and ship production AI applications — multi-agent architectures, WhatsApp automation pipelines, and multi-tenant SaaS platforms — from initial design to live deployment.
As the Co-Founder & CTO of AcidCat Digital Marketing, I lead technical development for Patofy — a global AI growth platform that turns any service business's WhatsApp number into a 24/7 AI receptionist, booking engine, and retention system, targeting WhatsApp-dominant markets across Europe, Latin America, and the Middle East.
“I don't just build features — I architect systems. Whether it's a multi-agent AI pipeline or a multi-tenant SaaS backend, I own the outcome from schema design to production deployment.”
From concept to deployment, I bring ideas to life with precision engineering and strategic thinking.
End-to-end product engineering — from database schema and API design to polished, performant UIs. I architect and ship production-ready systems, not MVPs that need rebuilding in 6 months.
Production-grade AI systems, not chatbot demos. I design and build specialized multi-agent architectures, WhatsApp API integrations, and LLM tool-calling pipelines that handle real user traffic with credit metering, error handling, and strict grounding.
Turning ambiguous business problems into phased, executable technical strategies. I bring both the strategic and hands-on perspective — I've founded, architected, and shipped multi-tenant SaaS platforms and AI products from zero.
Global AI Growth Platform for WhatsApp-First Service Businesses
Autonomous WhatsApp AI receptionist, booking engine, and retention marketing system for service businesses.
Enterprise InsurTech platform managing policy lifecycles, automated claims, and cross-platform mobile apps in Hong Kong.
High-frequency crypto data aggregator processing streaming order books and real-time market feeds via RabbitMQ.
Co-founded and lead the technical development of Patofy, a global AI growth platform targeting WhatsApp-first service businesses across Europe, Latin America, and the Middle East. Responsible for the full engineering stack — from database architecture to AI agent design to production DevOps.
Architected and optimized backend services and user interfaces for an enterprise InsurTech platform operating in a highly regulated, data-heavy environment.
Developed core components of the backend architecture for a high-frequency cryptocurrency data aggregator to handle continuous real-time market feeds.
A pragmatic engineer who picks the right tool for the job. These are the technologies I use day-to-day.
Multi-tenant SaaS platforms using Next.js 15, Payload CMS v3, MongoDB, and TypeScript — designed for global scale.
Specialized multi-agent AI systems with strict tool-calling, credit metering, and real-time data grounding.
Founder mindset: I've scoped, built, launched, and iterated on production SaaS products from zero revenue to paying customers.
WhatsApp Cloud API, Stripe, M-Pesa, Gemini API, and 3rd-party service integrations — production-hardened, not prototype-level.
I'm proud of the impact my work creates for clients. Here's what some of them have to say.
“Jack transformed our entire client management workflow. The booking system he built eliminated double-bookings and saved us hours every week. The M-Pesa integration is seamless and our clients love it.”
“Working with Jack on the EAB InsurTech platform has been excellent. He has a deep understanding of both the technical and business requirements. His TDD approach gave us confidence in every feature shipped.”
“The WhatsApp AI receptionist Jack built now handles 90% of our inbound inquiries automatically — bookings, FAQs, and follow-ups. We went from missing leads overnight to having zero missed conversations. The time savings alone paid for it within the first month.”
Whether you're looking to hire an AI-focused software engineer, need a technical partner for your next product, or want to discuss a consulting engagement — I'm always happy to connect. I typically respond within 24 hours.
