IoT Engineer

PERSOL; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

PERSOL Singapore seeks an experienced Connectivity Engineer to design and maintain industrial connectivity across IoT platforms, PLCs, sensors, robots and gateways. You will build robust data pipelines and edge applications while supporting testing, monitoring, security and operational stability.

You will bring hands-on PLC and IoT platform expertise, knowledge of SCADA protocols, Docker and Linux, and scripting skills.

Qualifications

• Hands-on PLC experience and IoT platform expertise.
• Knowledge of SCADA and industrial protocols (OPC UA, S7, Modbus, PROFINET).
• Proficiency with scripting (PowerShell, Bash).
• Experience with Docker and CI/CD pipelines.
• Familiarity with Linux and database systems (Oracle, Tibero, SQL).

Responsibilities

• Troubleshoot connectivity, latency and data-quality issues across devices and platforms.
• Develop and maintain device connectivity for sensors, PLCs, robots and gateways.
• Implement data-ingestion pipelines for cloud and on-prem environments.
• Configure and deploy interfaces connecting PLCs with pipelines, databases and socket-based systems.
• Develop and maintain Docker containers for applications in private-cloud environments.
• Support device provisioning, configuration and monitoring.
• Write reliable and testable code for edge applications and basic backend services.
• Collaborate with field engineers to define interface requirements and test pipelines.
• Work with software developers, DBAs and server engineers to deliver features.
• Follow established architecture, security and coding standards to maintain data accuracy.

Skills

PLC experience

IoT platforms

SCADA knowledge

OPC UA

S7 protocol

TCP/IP networking

Modbus

Profinet

PowerShell

Bash scripting

Docker

CI/CD pipelines

C#

Java

Spring Boot

Vue.js

Education

Bachelor’s degree or higher in Computer Engineering, Electrical Engineering, Computer Science, Industrial Engineering or related discipline

Tools

Docker

Kepware

ThingWorx

Linux

Oracle

Tibero

SQL

Job description

Brief Summary:

• Develop and maintain industrial connectivity solutions across IoT platforms, PLCs, sensors, robots and gateways.
• Build reliable data pipelines and edge applications while supporting system testing, monitoring, security and operational stability.
  

Responsibilities:

• Troubleshoot connectivity, latency and data-quality issues across devices, interfaces and platforms.
• Develop and maintain device connectivity for sensors, PLCs, robots and gateways.
• Implement data-ingestion pipelines for cloud and on-premises environments.
• Develop and execute interfaces connecting PLCs with pipelines, databases and socket-based systems.
• Configure, deploy and enhance Docker containers for applications hosted in private-cloud environments.
• Support device provisioning, configuration and monitoring.
• Write reliable and testable code for edge applications, device adapters and basic backend services.
• Collaborate with field engineers to define interface requirements and support pipeline testing, monitoring and optimisation.
• Work with software developers, database administrators and server engineers to deliver assigned features.
• Follow established architecture, security and coding standards while maintaining data accuracy and system stability.
  

Requirements:

• Bachelor’s degree or higher in Computer Engineering, Electrical Engineering, Computer Science, Industrial Engineering or a related discipline.
• Three to five years of hands‑on experience with PLCs and IoT platforms.
• Demonstrated experience designing, configuring and operating PLC systems.
• Familiarity with SCADA and industrial communication protocols, including OPC UA, S7, TCP, UDP, Ethernet, Modbus and PROFINET.
• Experience with IoT platforms and technologies, including Siemens PLCs, PTC Kepware, PTC ThingWorx and Linux.
• Technical proficiency in PowerShell, Bash and comparable scripting environments.
• Knowledge of IaaS, PaaS and database management technologies, including Oracle, Tibero and SQL.
• Experience with Docker and CI/CD pipelines.
• Familiarity with C#, Java, Spring Boot and Vue.js.

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