Freelancing Experience

Worked on gateway development for sensor data extraction with low-power protocols such as 6LoWPAN and MIOTY.
Worked on routing data from gateway to cloud and on-premises via MQTT and gRPC.
Worked on the microservices part of the embedded team, comprising three services that emulate AWS IoT Core.
Worked on the positioning engine, FOTA software over Bluetooth, and optimization of the network based on addresses.
Worked on embedded Linux development using Yocto for service orchestration and network configuration.
Developed the internal data representation engine to provide a more flexible way to transmit data for both the company's cloud and on-premises brokers.
Worked on the Hardware-in-the-Loop test system to integrate more tests.

Integrated new devices and sensors into the network.
Developed a new service that coordinates the capabilities of each device that can be distributed via the gateway.
Optimized the network based on addresses, achieving a significant speedup.
Improved data representation for flexibility for both the cloud team and on-premises clients.
Enhanced testing discovered some bugs that were previously undetected.

C, Python, Go, Yocto, RocksDB, PostgreSQL, MQTT, gRPC, Protocol Buffers, MIOTY, 6LoWPAN, Bluetooth Low Energy, Compute Module 4, Gin, Docker, Git

Conducted an investigation for the gateway from the conceptualization of the product to the production line.
Developed software for the gateway that interacts with inverters and meters for both power plants and energy farms.
Integrated various inverters and meters via Modbus TCP/IP to communicate with the gateway.
Developed metrics and request/response schemes with the backend via MQTT on AWS.
Developed a flexible way to build and distribute the gateways as well as internal service orchestration.
Developed internal tools such as a Modbus simulator and test clients for local development.
Implemented security mechanisms for the platform to be production-ready.

Developed a product from the concept stage to the production line.
Provided real-time metrics and request/responses for the first power plant comprising 100+ inverters.
Enabled remote data as metrics from the devices to the cloud in a unified form.
Delivered a secure product that was cost-effective to produce, easy to maintain and extend, and met all requirements.
The presentation occurred at the company's first power plant and received positive feedback.

C#, .NET, Modbus, MQTT, Redis, Linux, Compute Module 4, AWS IoT Core, Docker, Git