Lead Software Engineer (Modbus + Go)

About this role

We are seeking a
Lead Software Engineer
specializing in
Modbus
and
Go
to join our team building industrial IoT solutions. You will ingest real-world machine data using Modbus RTU/TCP, normalize it via EdgeX Foundry and transmit it securely northbound through MQTT, OPC UA and cloud platforms.

*Please note that this role requires a business trip to Denmark for a week or two for onboarding purposes.*

*Feel free to work remotely from anywhere across Lithuania or connect with colleagues at our Vilnius and Kaunas offices.*

Responsibilities

• Configure and maintain the device-modbus-go service for Modbus RTU/TCP communication
• Write YAML Device Profiles mapping raw Modbus register tables to logical device resources
• Build data pipelines using EdgeX Core Services and Application Services to route data northbound
• Manage Modbus RTU serial communication including daisy-chains, baud rates, parity and stop bits
• Handle Modbus TCP socket management, multiple client-server connections and IP addressing
• Parse raw 16-bit registers to decode 32-bit floats and integers, including byte/word swapping
• Modify Go source code to build custom device service functionalities
• Deploy Docker containers, configure shared volumes and map serial host paths
• Troubleshoot issues across software, network and physical wiring layers
• Respect OT constraints to avoid disrupting factory floor operations
• Travel to Denmark for a week or two for onboarding purposes

Requirements

• 5+ years of experience configuring EdgeX device services and Modbus device profiles
• At least 1 year of relevant leadership experience
• Knowledge of Modbus RTU (RS-485) and Modbus TCP protocols
• Proficiency in Go (preferred) with the ability to read and modify source code for custom device service functionalities, or expertise in C++ or Python
• Understanding of data translation techniques for 16-bit register parsing into 32-bit floats and integers
• Familiarity with Docker and Docker Compos...