Senior Golang Engineer - Industrial Connectors

Litmus; Santa Clara (CA); On-site; USD 150,000 - 230,000; Full time

Job summary

Litmus, a growth-stage software company building real-time data platforms for industrial AI, is seeking a Senior Software Engineer (Golang) to develop southbound connectors for PLCs and OT systems.

You’ll tackle cross-protocol integration (OPC-UA, Modbus, EtherNet/IP, PROFINET), design robust error handling, and push for reliability in production environments. Join a high-performance team shaping Litmus Edge’s communication layer.

Qualifications

• Bachelor's or Master's degree in Computer Science, Software Engineering, Electrical Engineering, or a related field.
• Hands-on experience developing software integrations, connectors, or drivers for PLCs and industrial control systems, with practical knowledge of industrial protocols such as OPC-UA, Modbus, EtherNet/IP, or PROFINET.
• Strong proficiency in Golang.
• 5+ years of relevant software engineering experience.
• Deep understanding of networking concepts, real-time communication, and industrial automation environments.
• Strong communication skills and the ability to collaborate effectively with cross-functional teams, including engineers from both software and industrial automation backgrounds.
• Nice To Haves: Experience with C++, MQTT, REST, SOAP, and other communication protocols.

Responsibilities

• Develop primarily Golang-based southbound connectors that communicate directly with PLCs and industrial control systems using protocols such as OPC-UA, Modbus, EtherNet/IP, PROFINET, and DNP3.
• Implement robust error handling and fault-tolerance mechanisms to ensure connectors are resilient to failures in OT environments and deliver a seamless user experience.
• Troubleshoot and optimize connector performance, reliability, and communication across diverse industrial environments.
• Design and implement comprehensive testing, diagnostics, logging, and monitoring to identify and resolve communication issues across diverse OT environments.
• Collaborate with cross-functional teams — including Product Managers, OT/Controls Engineers, and other Software Engineers — to understand requirements and deliver high-quality integration solutions.
• Contribute to the development of our open-source projects, sharing expertise with the wider developer community.

Skills

Golang

5+ years

Networking

Real-time comm

Cross-functional

OT collaboration

Education

Bachelor's or Master's in CS/EE/SE

Tools

OPC-UA

Modbus

EtherNet/IP

PROFINET

DNP3

Job description

Litmus, a growth-stage software company building real-time data platforms for industrial AI, is seeking a Senior Software Engineer (Golang) to develop southbound connectors for PLCs and OT systems.

You’ll tackle cross-protocol integration (OPC-UA, Modbus, EtherNet/IP, PROFINET), design robust error handling, and push for reliability in production environments. Join a high-performance team shaping Litmus Edge’s communication layer.