A comprehensive reliability and security audit of Combotto's secure edge IoT Gateway, identifying strengths, architectural bottlenecks, and a 90-day roadmap toward production-grade resilience.
IoT • Data Infrastructure • Security
Build measurable reliability, observability, and security into your IoT systems — from device telemetry to the cloud.
20-minute intro to your IoT Infrastructure Audit - clear next steps.
Based in Denmark • Remote friendly • English & Danish
Rust IoT Gateway Demo: STM32 → MQTT → Rust Gateway → Grafana/Tempo
For teams shipping connected devices at scale who need reliability, observability, and security—without vendor lock-in.
Services
Outcome-focused packages designed to show value quickly and scale sensibly.
Get a clear overview of how your connected devices communicate with the cloud. This audit uncovers reliability bottlenecks, insecure data paths, and missing observability in your IoT infrastructure — giving you a roadmap for safer operations.
Typical engagement: 40–60k DKK · Fixed scope
Turn audit insights into measurable reliability and security gains. This sprint implements prioritized improvements using Rust, Scala, or Python, focusing on robust communication pipelines, secure data handling, and production-grade observability.
Ongoing architecture reviews and tuning for teams running critical IoT data systems. Maintain reliability, security, and cost-efficiency with continuous feedback, SLO tracking, and on-demand engineering support.
References / Client Case Studies
A few projects where we improved IoT reliability, security, and observability.
A comprehensive reliability and security audit of Combotto's secure edge IoT Gateway, identifying strengths, architectural bottlenecks, and a 90-day roadmap toward production-grade resilience.
Process
20-minute strategy call to confirm scope, devices, data rates, and SLAs.
Structured infrastructure audit with prioritized action plan.
Reliability sprint: secure MQTT gateway, observability, dashboards.
Demo
End-to-end telemetry pipeline with local WAL buffering, zero-trust device authentication, and OpenTelemetry tracing to Grafana Tempo. Vendor-neutral IoT observability from device to dashboard.
Traces and dashboards are shown in the visual gallery.
Architecture Sketch
[Device]
└─ STM32 (sensors)
└─ MQTT (mutual TLS, QoS)
└─ Rust Gateway (WAL, auth, transforms)
├─ OTLP → Tempo (traces)
├─ /metrics → Prometheus
└─ Dashboards → GrafanaBlog Posts / Insights
A few blog post that dives deeper into our thoughts across software, infrastructure, and systems consulting

What breaks when an edge IoT gateway runs 24/7? Real operational lessons from running a secure edge-to-cloud system under intermittent connectivity, focusing on reliability, observability, and silent failure modes.

Edge-to-cloud systems without proper observability suffer from slow debugging and reactive incident response. Learn why logs alone fall short and how observability reduces risk.
I created a structured IoT Architecture Audit Checklist. It captures the core principles of reliability, security, and observability, and provides a consistent process for evaluating device -> gateway -> cloud pipelines.
Send a quick message about your devices, data rates, and current challenges. You’ll get a reply with practical next step.
Phone: +45 22 39 34 91 or email: tb@combotto.io.