About Device Prophet
I'm Denis Mingulov, a systems and security engineer based in Tampere, Finland. I work across cryptographic software, Linux internals and embedded security.
Device Prophet brings that work together. You can work with me on an integration, a difficult failure, a diagnostic tool or a device security design.
Software, systems and device trust
My public work includes PKCS#11 testing and integration, PDF timestamp software, Linux cryptographic observation and specialist memory-path research. The projects show how I build tools and investigate behavior, with their supported environments documented alongside the code.
Embedded work can connect secure boot, device identity, protected keys and signed updates. The useful starting point is the platform you have and the problem you need to solve.
Writing about engineering methods
The articles cover device architecture, deterministic assessment and evidence-assisted analysis, including earlier Digital Auditor and AI Assistant work.
Certifications & contributions
My background includes security architecture, information security and cloud security certifications, alongside contributions to the Zephyr project. Each badge links to its record on Credly.
Working together
Tell me what you are working on and what would help. Before work starts, we agree the deliverables, access, checks and fee. You receive the changes or findings with notes and checks your team can use.