I have designed the new generation of ".hu" domain registry, using cutting edge technologies in a deeply distributed microservice architecture. I have recruited a team, and I have been leading them in the development of the DNS registry. This system gives a part of the skeleton of the worldwide network what we call: the internet.
Tech stack: Golang, Microservices(30+), Nats, Postgres cluster, on-premise Gitlab CI/CD, docker swarm, Portainer, Redis(RediSearch, JSON), on-premise docker registry, Redocly, Gherkin based test framework, ...etc)

I have designed and implemented a complete server side solution for remote telemetry devices. These devices are in an ATEX environment which means they need to operate in an explosive environment(major gas distributors uses), so they have only a small battery for a couple of years. We have optimized their communication to survive these circumstances for 4-10 years depending on their configuration. The server controls the data stream from the devices, it can set their configuration remotely and initiate a remote FW update by configurable spreading zones. There are composable alerts which can inform the handler about the chosen anomalies.

At this time I have been working for blockchain focused companies as a contractor. I have participated in the development of one of the biggest hungarian cryptocurrency exchanges. I have developed most of the core exchange functions and several security related features of the site. I have designed and prototyped a bitcoin ATM for an other blockchain related company.

As a main supplier of the automotive industry, we designed and manufactured custom linux based mini computers which have been installed in cars, buses and trains. We prepaired linux board support packages(aka:linux BSP) which could support the development of the further software layers for every manufacturer. I have designed a semi-automated Software Bill of Materials(aka: SBoM) producer environment which could make easier to create a several thousands pages long documentation. Before that it was a manual thing to do during every release period.

I have designed several smart metering devices, it involves the metrological methods, the electrical design, PCB routing and small series prototyping. I have also implemented their embedded FW in ANSI C and assembly programming language.