QA Automation Engineer

Cortex Consultants LLC; Bengaluru Urban; On-site; INR 600,000 - 1,000,000; Full time

Job summary

Cortex Consultants LLC in India is seeking a QA Automation Engineer with strong hands-on experience in Device-to-Cloud testing, test automation, and IoT protocols. You will design end-to-end test scenarios for telemetry, device provisioning, and cloud pipelines, and build scalable automation frameworks.

The role requires TR-369 / TR-69 experience, Python or Java, and hands-on testing of MQTT/WebSockets, with CI/CD integration using Jenkins, GitHub Actions, or GitLab CI.

Qualifications

• 4–7 years of experience in Software Quality Engineering.
• Hands-on experience with TR-369 / TR-69 (USP).
• Strong automation experience with Playwright and Selenium.
• Experience with MQTT and WebSockets testing.

Responsibilities

• Design and execute end-to-end Device-to-Cloud test scenarios.
• Build, maintain, and scale automation frameworks.
• Validate real-time and asynchronous device-cloud communication.
• Integrate automated test suites into CI/CD pipelines.
• Collaborate with firmware, cloud, and product teams.
• Perform API, backend, integration, and protocol-level testing.

Skills

Python

Java

MQTT

WebSockets

REST APIs

JSON/Protobuf

TypeScript/JavaScript

Tools

Playwright

Selenium

Mosquitto

Postman

JMeter

GitHub Actions

Jenkins

GitLab CI

Docker

Linux

Job description

Cortex is Hiring for : QA Automation Engineer | Device-to-Cloud / IoT Testing

Experience: 3 7 Years

Location: Noida / Gurgaon / Bangalore

Employment Type: Full-Time

We are looking for a skilled QA Automation Engineer with strong hands-on experience in Device-to-Cloud testing, test automation, IoT protocols, and protocol-level validation.

Mandatory Requirement

TR-369 / TR-69 Experience Is Mandatory.

Candidates must have experience with Python or Java.

Key Responsibilities

• Design and execute end-to-end Device-to-Cloud test scenarios covering telemetry, device provisioning, remote configuration, and cloud pipelines.


• Build, maintain, and scale automation frameworks using Playwright and Selenium.


• Validate real-time and asynchronous communication between devices and cloud backends using MQTT and WebSockets.


• Integrate automated test suites into CI/CD pipelines using Jenkins, GitHub Actions, or GitLab CI.


• Work closely with firmware engineers, cloud backend developers, and product teams to identify, debug, and resolve issues across hardware and cloud layers.


• Perform API, backend, integration, and protocol-level testing.

Required Skills

• 4 7 years of experience in Software Quality Engineering, preferably with strong Device-to-Cloud / IoT testing experience.


• Hands-on experience with TR-369 / TR-69 (USP), including device management, controller-agent interactions, and cloud communication.


• Strong automation experience with Playwright and Selenium.


• Practical experience testing MQTT and WebSockets using tools such as Mosquitto, Postman, JMeter, or custom scripts.


• Strong programming skills in Python or Java.


• Experience with TypeScript or JavaScript is an added advantage.


• Strong knowledge of REST APIs and asynchronous message payloads such as JSON and Protobuf.

Good to Have

• Experience with Wireshark or other network packet analysis tools.


• Working knowledge of Docker and Linux environments.


• Exposure to cloud IoT platforms such as AWS IoT, Azure IoT Hub, or GCP.


• Experience working with CI/CD and DevOps environments.