Principal Software Developer & Open Source Enthusiast — articles on software development, architecture, and technology.https://ismaelmartinez.me.uk/enhttps://ismaelmartinez.me.uk/en/articles/opentelemetry-signals/https://ismaelmartinez.me.uk/en/articles/opentelemetry-signals/What each OpenTelemetry signal is for, how traces, metrics, logs, and baggage connect, and why splitting one big log into specialised signals is worth the complexity.Fri, 27 Feb 2026 00:00:00 GMTObservabilityOpenTelemetrySignalsSREhttps://ismaelmartinez.me.uk/en/articles/integrating-agentic-systems-into-event-driven-architectures/https://ismaelmartinez.me.uk/en/articles/integrating-agentic-systems-into-event-driven-architectures/A simple layer model, three integration patterns, and the failure modes you must design around when bringing AI agents into event driven systems.Wed, 25 Feb 2026 00:00:00 GMTAgentic AIEvent Driven ArchitectureAIObservabilityhttps://ismaelmartinez.me.uk/en/articles/the-ai-automation-trap/https://ismaelmartinez.me.uk/en/articles/the-ai-automation-trap/Why building is easy and deciding is hard. AI eliminated creation costs but maintenance burdens remain — teams must practice deliberate simplicity.Mon, 26 Jan 2026 00:00:00 GMTAISoftware DevelopmentUXSimplicityhttps://ismaelmartinez.me.uk/en/articles/making-data-visualisations-audible/https://ismaelmartinez.me.uk/en/articles/making-data-visualisations-audible/A 10-year-old hackathon idea finally comes to life. Introducing sound3fy, an open-source library that adds sonification to D3.js charts for blind and low-vision users.Mon, 22 Dec 2025 00:00:00 GMTAccessibilityData VisualisationD3.jsWeb DevelopmentOpen Sourcehttps://ismaelmartinez.me.uk/en/articles/system-thinking-governance-and-greenops-in-the-age-of-ai/https://ismaelmartinez.me.uk/en/articles/system-thinking-governance-and-greenops-in-the-age-of-ai/Reflections from APIdays London on systems thinking, governance as an enabler, managing complexity, and sustainability in AI systems.Mon, 27 Oct 2025 00:00:00 GMTAPIAIGreenOpsGovernanceAPIdayshttps://ismaelmartinez.me.uk/en/articles/the-death-ish-of-logs/https://ismaelmartinez.me.uk/en/articles/the-death-ish-of-logs/A journey through the decades exploring how logs evolved from printed records to structured data streams and their role in OpenTelemetry and modern observability.Tue, 22 Apr 2025 00:00:00 GMTLogsOpenTelemetryObservabilityMonitoringhttps://ismaelmartinez.me.uk/en/articles/observability-with-opentelemetry/https://ismaelmartinez.me.uk/en/articles/observability-with-opentelemetry/Understanding the difference between monitoring and observability, and how OpenTelemetry standardises telemetry collection with traces, metrics, logs, and more.Mon, 24 Mar 2025 00:00:00 GMTObservabilityOpenTelemetrySRESoftware EngineeringMonitoringhttps://ismaelmartinez.me.uk/en/articles/choreography-and-orchestration/https://ismaelmartinez.me.uk/en/articles/choreography-and-orchestration/Comparing decentralised choreography with centralised orchestration in distributed systems, their trade-offs, and when to use each approach.Mon, 17 Mar 2025 00:00:00 GMTEvent-Driven ArchitectureChoreographyOrchestrationSoftware Architecturehttps://ismaelmartinez.me.uk/en/articles/event-driven-architectures/https://ismaelmartinez.me.uk/en/articles/event-driven-architectures/A comprehensive exploration of Event-Driven Architectures: events, mediating systems, event types, and the challenges of building distributed systems.Thu, 16 May 2024 00:00:00 GMTEvent-Driven ArchitectureSoftware ArchitectureDistributed Systems