Senior Platform & Backend Engineer. I build systems that operate where you can't SSH in and fix things.
NavEngine is that system - an immutable Flatcar Linux product running across 58 organisations in Kenya, South Africa, Mozambique and Botswana. I deploy on hardware I've never touched, across three hypervisors, with no rollback button when something ships broken.
That context shapes everything I build: idempotent pipelines, offline license validation, explicit failure states, staged promotion gates, and observability as the primary operator interface.
- NavEngine - a self-hostable multi-tenant IaaS marketplace on Flatcar Linux
- FlowRecon - plugin-based financial reconciliation engine with deterministic scoring and tenant isolation
- Statistical Methods - practical guide to statistical computing and mathematical foundations for data science
Backend & Distributed Systems
TypeScript · NestJS · Python . FastAPI · Golang · PostgreSQL · Redis · Kafka
Infrastructure
Docker · Flatcar Linux · Ansible · GCP · Grafana · Prometheus · Keygen · Keycloak
- marvinkweyu.net
- linkedin.com/in/marvinkweyu
- twitter.com/marvinus_j