When the network drops
Do devices reconnect without draining their batteries or flooding the backend? What happens to buffered data and queued commands during a long outage?
IoT Architecture Risk Audit
Find the weak points before you scale your fleet.
Get an independent review of your connected product, so you can decide what to fix before field failures, support work and cloud costs grow with your deployment.
For teams moving from pilot to production or dealing with problems in an existing fleet.
Talk me through your product and the architecture decisions you’re facing.
A working pilot leaves some questions unanswered.
More devices, unreliable networks and years of maintenance can expose problems that never appeared on the bench.
When an update fails
Can you recover a device remotely after a bad firmware release or configuration change? Can support diagnose the problem without sending someone on site?
When the fleet grows
Which limits will you hit first: broker connections, database writes or the cloud bill? Can your platform choices support the deployment you’re planning?
Know which decisions need attention now.
Decide what to change before the next rollout, what can wait and where measurements or testing are needed.
We discuss the risks and trade-offs with your team. I can also help implement the changes.
Firmware and cloud, reviewed together.
I’m Julien Vermillard. I have 20+ years in software and IoT, including architecture leadership at Sierra Wireless and contributions to Eclipse Leshan.
My recent work includes LwM2M scheduling and cellular modem support in Zephyr, plus changes to Go and Rust networking libraries. See the merged contributions.
See how I approach these problems
Scaling MQTT by using less MQTT explores the connection between protocol choices and backend load.
Owning the stack covers device management and firmware updates, with a Zephyr demonstration.
A few practical details
What does the €3,000 audit include?
An architecture and documentation review, a written report and three one-hour remote meetings: a product walkthrough, initial findings and a final discussion. I analyse the material and prepare the report between meetings. The price excludes VAT.
What do you need from us?
Your architecture overview, main constraints and the questions you need answered. We agree which supporting material to review and the schedule before starting.
Does the audit include implementation or testing?
The audit identifies risks and recommends changes. Implementation, load testing and deeper investigations can be scoped separately when needed.
Is this the right review for CRA preparation?
If your main question is what to change for the Cyber Resilience Act, see the CRA Technical Architecture Review, also €3,000 excl. VAT. We can work out which review fits on the first call.
What worries you about your next deployment?
Let’s start with a 30-minute call about your product, your fleet and the decisions ahead.