A research scientist and software engineer focused on designing data-intensive, multi-tenant systems at the intersection of finance, geospatial analytics and applied AI. My experience spans multi-tenant SaaS, IaaS marketplaces, distributed systems and event-driven architectures.

I build backend and platform systems where correctness, auditability, and scalability matter.

• FlowRecon
  A plugin-based, multi-tenant financial reconciliation engine for matching invoices against bank transactions at scale.
  Focus areas include deterministic scoring, idempotent pipelines, and tenant isolation.

• TambuaShamba
  A geospatial informatics platform for monitoring soil organic carbon using spatial analytics in Kenya.

• Moneyup
  A local-first, cross-platform invoice management system exploring offline-capable financial workflows.

• ColorDetect
  Image and color detection algorithms used in computer vision workflows.

Additional projects include Masomo / AssessMe (modular education platforms), SocialFeed, and Marastore.

I’m particularly interested in:

• Software architecture & system boundaries
• Scalability and failure modes
• Data isolation in multi-tenant systems
• AI as an assistive layer, not a decision-maker
• Developer health and sustainable engineering practices

I write and speak about these topics at TheGreenCodes

1. Software Architecture
2. Scalability
3. Technopreneurship
4. Health Digest

Statistical Methods

A practical guide to statistical computing and mathematical foundations used in data science and applied research.

I’m always open to conversations around:

• Backend & platform engineering
• Applied AI in real systems
• Data-heavy products in emerging markets
• Research-to-production workflows

• Twitter: https://twitter.com/marvinus_j
• Personal Site: https://marvinkweyu.net
• LinkedIn: www.linkedin.com/in/marvinkweyu