Essays on root-cause analysis, engineering leadership, case studies from Fortune 500 companies, and conference talks on cloud-native architecture and AI engineering.https://larsartmann.comen-ushttps://larsartmann.com/blog/when-the-api-has-no-spec-your-types-are-the-spechttps://larsartmann.com/blog/when-the-api-has-no-spec-your-types-are-the-specIn 2020 I used Wise's API directly. Years later, no Go SDK existed — so I built one. And discovered the API returns money as float64.Sat, 08 Aug 2026 00:00:00 GMTgotype-designapi-clientshttps://larsartmann.com/impacthttps://larsartmann.com/impactDiscovered a critical compliance blind spot in North Macedonia's accounting standards that no one in the entire organization had identified — preventing illegal operations and millions in fines.Mon, 01 Jan 2024 00:00:00 GMTCompliancehttps://larsartmann.com/impacthttps://larsartmann.com/impactTransformed 28-hour batch processing into real-time streaming for 1M+ products across 169 stores in 9 countries. Cloud savings so large the number was a legal liability.Sat, 01 Jan 2022 00:00:00 GMTPerformancehttps://larsartmann.com/impacthttps://larsartmann.com/impactArchitected and delivered the IaC platform for Rolls-Royce's digital modernization. Infrastructure provisioning went from 2–4 weeks to 1–2 hours.Wed, 01 Jan 2025 00:00:00 GMTInfrastructurehttps://larsartmann.com/impacthttps://larsartmann.com/impactLed an international engineering team of 7 across 3 countries for a US-based software agency serving Fortune 500 clients including NASA.Wed, 01 Jan 2020 00:00:00 GMTLeadershiphttps://www.youtube.com/watch?v=vXw11WOjrMIhttps://www.youtube.com/watch?v=vXw11WOjrMIPresenting at Oracle CloudWorld 2021 on building cloud-native enterprise solutions with Google Cloud Run. Part of DeveloperWeek, the world's largest developer conference.Sun, 31 Jan 2021 23:00:00 GMTCloud NativeGoogle CloudServerlessEnterprise