IoT Developer Job Greenville area,Texas USA,Software Development

Inviting applications for the role of OT Developer, We are seeking an OT (Operational Technology) Developer with expertise in AWS IoT Core, MQTT, and AWS IoT services to design and develop industrial IoT solutions. The ideal candidate will have experience in integrating OT systems with cloud platforms, handling real-time data processing, and ensuring secure IoT device communication.

Job Description:

We are seeking a skilled and experienced OT Developer with 4 to 7 years of hands‑on experience to join our IOT team. As an OT Developer, you will be responsible for designing, developing, and maintaining industrial IoT solutions.

Responsibilities:
IoT Solution Development:

Develop and implement IoT-based solutions using AWS IoT Core and other AWS IoT services.
Build secure and scalable MQTT communication between OT devices and AWS cloud.
Work on edge‑to‑cloud data flow, enabling real‑time monitoring and analytics.
Develop IoT rules, device shadows, and AWS IoT policies to manage device connectivity.
Implement AWS IoT Green grass for edge computing and local processing.
Utilize AWS Lambda, AWS S3, AWS DynamoDB, and AWS Kinesis for real‑time data processing.

Industrial Connectivity & Protocols:

Integrate PLC/SCADA systems, sensors, and industrial machines with AWS IoT.
Work with industrial protocols like OPC-UA, Modbus, and BACnet for data ingestion.
Ensure secure authentication & authorization for device connectivity using X.509 certificates, IAM roles, and AWS IoT Policies.

Performance Optimization & Security:

Optimize MQTT messaging performance for low‑latency and high‑reliability communication.
Implement IoT device security measures such as TLS encryption, device identity management, and anomaly detection.
Ensure compliance with industry standards (ISA-95, NIST Cybersecurity Framework, etc.).

Qualifications we seek in you!

Bachelor’s or master’s degree in computer science, Software Engineering, or related field.
Proven work experience as an OT Developer with 4 to 7 years of hands‑on experience.

Preferred qualifications:

Hands‑on experience with AWS IoT Core, AWS IoT Green grass, AWS Lambda, AWS Kinesis, S3, and DynamoDB.
Strong knowledge of MQTT, Web Sockets, and industrial communication protocols (OPC-UA, Modbus, BACnet, etc.).
Proficiency in Python, Node.js, or Java for IoT application development.
Experience with IoT security best practices (TLS, mutual authentication, X.509 certs).
Familiarity with edge computing and real‑time data streaming architectures.
Hands‑on experience integrating PLC/SCADA systems with cloud platforms.

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