Jarvis Sitati
Principal Systems Architect & Founder, Nanja
Enterprise Systems Architect operating across East Africa and global markets — unifying AI, Cloud, Cybersecurity, Fintech and distributed enterprise systems into a single engineering stack.
Jarvis Sitati is an Enterprise Systems Architect and the Founder of Nanja, an elite digital consulting agency operating across East Africa and global markets. Jarvis approaches modern engineering through a unified stack philosophy: leveraging Artificial Intelligence as an optimization engine, Cloud Computing as a resilient hosting foundation, Cybersecurity as an absolute baseline defense, Fintech as a high-value transactional engine, and Enterprise Systems Engineering to sustain extreme multi-user operational scale.
Driven by an intensive, first-principles approach to engineering, Jarvis has built a deep portfolio grounded strictly in international compliance models, architectural specifications, and core technical frameworks. His multi-disciplinary expertise allows him to bridge the gap between high-level enterprise strategy and hardened, low-level technical execution.
From first principles to production scale
Artificial Intelligence
Architecting production-grade neural networks, custom Retrieval-Augmented Generation (RAG) loops, and autonomous multi-agent coordination frameworks using LangChain to securely unlock corporate knowledge spaces.
Cloud Infrastructure & DevSecOps
Designing hyper-redundant, multi-region computing clusters on AWS and Azure aligned with the AWS Well-Architected Framework. Expert in federated identity (Microsoft Entra ID), automated CI/CD pipelines, and global-scale Kubernetes cluster mesh configurations.
Defensive & Offensive Security
Hardening microservices, web apps and API boundaries against complex attack vectors using NIST CSF and OWASP Top 10 mandates. Specializes in production identity engineering via OAuth 2.0 and securing custom AI pipelines against prompt injection and data poisoning.
Fintech & Transactional Systems
Building high-throughput, double-entry ledger databases, real-time Stripe payment routing engines, and cross-border remittance networks compliant with the ISO 20022 financial messaging standard. Experienced in orchestrating private multi-party transaction environments using Hyperledger Fabric.
Distributed Enterprise Systems
Engineering massive, asynchronous event-driven microservice grids using Apache Kafka, low-latency Redis Cluster configurations, horizontally sharded PostgreSQL architectures, and Raft consensus state engines for elite global reliability.
Engineered in East Africa. Delivered globally.
Operating out of dual registered corporate hubs in Kenya and Burundi, Jarvis provides localized strategy, regulatory alignment, and technical leadership for the East African market. Simultaneously, his adherence to global engineering standards powers a frictionless, remote delivery model — architecting and deploying complex infrastructure projects for international clients worldwide.
The short version
Jarvis Sitati is a Global Enterprise Systems Architect and the Founder of Nanja, a digital consulting agency with corporate footprints in Kenya and Burundi. Jarvis specializes in designing, scaling and securing the high-stakes technology foundations that modern enterprises demand — from production-grade AI agent frameworks and multi-region AWS/Azure cloud infrastructure to zero-trust cybersecurity programs, ISO 20022-compliant fintech engines, and highly available distributed systems powered by Kafka and the Raft consensus protocol. Combining deep regional insight with a borderless operational model, Jarvis delivers world-class engineering and strategic transformation to local market leaders and remote clients globally.