I'm a platform engineer and systems architect based in Nairobi. Most of my work over the past decade has been in fintech, government, banking, and cloud infrastructure, the kind where system uptime and data integrity aren't optional. I currently run platform operations at Atlancis Technologies and am building Ratify, an open-source data contract workflow engine in Go.

The work I find most interesting is the internal kind, tooling that other engineers use. The SLA monitoring framework I built at Atlancis replaced a 14-year manual process. The developer standards platform enforces coding standards at the point of writing code rather than in forgotten documentation. Ratify is the same instinct applied to data pipelines: catch schema changes before they break something downstream.

I have also run a STEM programme in Nairobi since 2017, teaching coding, mathematics, robotics, and machine learning to students from kindergarten through high school. I've partnered with institutions including Strathmore University, Aga Khan University, the University of Plymouth, Brookhouse, and several other schools in Nairobi. A significant part of that work has been developing curricula for autistic learners, including through Aga Khan's Brain and Mind Institute.

I got my start by spending months contributing suggestions to open-source tools via IRC channels before anyone trusted me with a serious project. Two students come to mind when I think about why that path matters. Khenso (Brookhouse) transferred to Kenya mid-GCSE year, failed every science, and spent a three month long school holiday doing daily remote sessions with me. Got straight As afterwards. She then built a Python application and is now reading Mining Engineering at the University of Pretoria. Ariana (West Nairobi School), a student I have taught since she was twelve, is now at Maastricht University.

Get in touch → injai@lewisinjai.dev