PLC Software Developer

L&T Technology Services; Bergen; On-site; NOK 700,000 - 1,000,000; Full time

Job summary

L&T Technology Services Limited (LTTS) is seeking a PLC Software Developer to design and optimize PLC programs for motion control, safety, and offshore equipment.

You will work with Siemens TIA Portal, frequency drives, Safety PLCs, and industrial networks, delivering HMI/SCADA interfaces and supporting FAT/SAT and commissioning worldwide.

Qualifications

• Experience with motion control systems, encoders, and position feedback.
• Hands-on with frequency inverters from Siemens/ABB/Danfoss or similar.
• Strong knowledge of fieldbus protocols and real-time communication.
• Exposure to motion‑compensated or offshore machinery is a strong advantage.
• Experience in lifting and transport domain is beneficial.

Responsibilities

• Develop and optimize PLC programs for motion control, load handling, and safety functions.
• Program using Siemens TIA Portal, including LAD/FBD/SCL, data types, and diagnostics blocks.
• Configure and integrate frequency drives with closed-loop control and STO.
• Implement safety logic using Safety PLCs (e.g., S7-1500F) for emergency stops and zone monitoring.
• Design and troubleshoot industrial networks (Profinet, Profibus, Ethernet/IP).
• Develop HMI/SCADA interfaces with alarms and user workflows.
• Participate in FAT/SAT, perform system tests, and support commissioning offshore.
• Contribute to OT cybersecurity including network segmentation and access control.

Skills

Motion control

Siemens TIA Portal

Frequency drives

Safety PLCs

Industrial networks

HMI/SCADA

OT cybersecurity

Offshore machinery

Lifting & transport

Job description

L&T Technology Services Limited (LTTS) is a global leader in Engineering and R&D (ER&D) services. With 719 patents filed for 57 of the Global Top 100 ER&D spenders, LTTS lives and breathes engineering. Our innovations speak for themselves – World’s 1st Autonomous Welding Robot, Solar ‘Connectivity’ Drone, and the Smartest Campus in the World, to name a few.

LTTS’ expertise in engineering design, product development, smart manufacturing, and digitalization touches every area of human lives - from the moment one wakes up till the time one goes to bed. With 69 Innovation and R&D design centres globally, we specialize in disruptive technology spaces such as 5G, Artificial Intelligence, Collaborative Robots, Digital Factory, and Autonomous Transport.

We are looking for someone with key skills and able to perform the following roles & responsibilities :-

PLC Software Developer

Key Responsibilities

• Develop and optimize PLC programs for motion control, load handling, and safety functions.
• Program using Siemens TIA Portal, including LAD/FBD/SCL, structured data types, and diagnostics blocks.
• Configure and integrate frequency drives, including closed-loop control, ramp profiles, torque limits, and safety torque off (STO).
• Implement safety logic using Safety PLCs (e.g., S7‑1500F) for emergency stops, zone monitoring, and safe motion.
• Design and troubleshoot industrial communication networks (Profinet, Profibus, Ethernet/IP).
• Develop HMI/SCADA interfaces with advanced alarm handling, diagnostic pages, and user workflows.
• Participate in FAT/SAT, perform system tests, and support commissioning of offshore or motion‑compensated equipment.
• Contribute to OT cybersecurity practices including network segmentation, access control, firmware/hardening compliance.

Required Technical Skills

• Experience with motion control systems, encoders, load monitoring, and position feedback integration.
• Hands‑on with frequency inverters (Siemens, ABB, Danfoss, or similar).
• Strong understanding of fieldbus protocols and real‑time communication.
• Knowledge of sensor/actuator integration, interlocks, hydraulic/electromechanical equipment logic.
• Familiarity with OT cybersecurity—firewalls, VLANs, secure remote access, user authentication.
• Exposure to motion‑compensated or offshore machinery is a strong advantage.
• Experience in lifting and transport domain.