Node-RED development: 3+ years building and deploying production flows – function nodes, subflows,

custom nodes, context, error handling, dashboard, Git projects

 Node-RED management platform: FlowFuse or equivalent – instance provisioning, snapshots /

versioning, dev-to-production pipelines, remote device agents

 Node-RED flow standardisation: reusable subflow / template libraries, naming and topic conventions,

common error handling and logging, coding standards and review checklists

 Rockwell PLC programming: ControlLogix / CompactLogix in Studio 5000 – ladder, structured text,

AOIs, UDTs, tags, MSG instructions, EtherNet/IP

 Siemens PLC programming: S7-1200 / S7-1500 in TIA Portal – LAD / FBD / SCL, FBs / FCs, DBs, S7

and OPC UA communication

 Siemens CNC – SINUMERIK 840D sl: machine data, NC program basics, alarms, operating modes,

SINUMERIK Operate and OPC UA interface for collecting machine, program, alarm and axis data

 PLC debugging: online monitoring, tracing values and handshakes, checking communication status

 Industrial controls & automation: machine states, cycles, alarms, interlocks; sensor → PLC → edge

→ enterprise data flow

 MQTT: Mosquitto / EMQX / HiveMQ – topic design, QoS, retained messages, TLS / mTLS,



ACLs,

bridging

 JSON, JSON Schema & data validation: payload design, schema versioning, validation and handling of invalid data

 Docker: Docker and Docker Compose on IPCs and VMs

 IPC / VM / Linux: Ubuntu / RHEL basics, networking, SSH, logs; Windows IPC basics

 Additional (valuable to have): Python / C# / Go; OPC UA, Modbus TCP, Profinet, Sparkplug B; HMI /

SCADA; Siemens / Rockwell edge platforms; OT networking and IEC 62443 awareness

SEGULA Technologies is a global engineering group, boosting the competitiveness of all major industrial sectors: automotive, aerospace, energy, rail, naval, life sciences, and telecoms. With a presence in more than 30 countries and 140 locations worldwide, the Group prioritizes close relationships with its clients, driven by the expertise of its 15,000 employees. As a leading engineering player putting innovation at the heart of its strategy, SEGULA Technologies manages large-scale projects, ranging from initial studies to industrialization and production.

SEGULA TECHNOLOGIES is dedicated to gender balance and diversity, recognizing and recruiting talent of all backgrounds.

📌 Industrial Middleware Engineer (Chennai)
🏢 Segula Technologies
📍 Chennai