Atieno Obwanda | Senior Engineer · Payments & Financial Systems

Atieno ObwandaSenior Engineer · Payments & Financial Systems · PythonAtieno Obwanda is a Senior Engineer who builds payments and financial systems in Python: fintech, banking integrations, reconciliation, and production systems.AboutExperienceProduction Systems Engineer (2024-Present): enterprise payments and financial systems, banking integrations, reconciliation, production operations.Selected systems

A repeatable path for tenant integrations

Matching when clocks disagree

One product, several external contracts

Unstructured files as an ingestion pipeline

SkillsPython, SQL, REST APIs, payments, financial systems, banking integrations, reconciliation systems, data pipelines, automation, Docker, AWS, observability.WritingTechnical writing on production systems: correctness, failure, data movement, external systems, pipelines, and cost. Published on Infrastructure First.

The 52-Minute Bank Statement: When Your Pipeline Routes on the Wrong Dimension

The Infrastructure Assumptions That Break First When Fintechs Expand Across African Markets

When a Production System Lies Quietly: Designing for Silent Failure.

How Infrastructure Decisions Show Up on Your P&L

The Silent Killers of Fintech Growth

Contact atienoobwanda@gmail.com · LinkedIn · GitHub