Software Engineer - Java / MQTT Protocols

Job Requirements :

• 10+ years of Java development experience, with extensive expertise in Java concurrency utilities such as Executors, Futures, and Locks.
• Strong experience in DLMS / COSEM protocols, including hands-on experience with DLMS stacks such as Gurux.
• Expertise in developing multi-threaded, scalable applications to handle real-time IoT device communications.
• Proven experience with IoT protocols such as MQTT and CoAP, integrating them into large-scale DLMS systems.
• Hands-on experience with testing and deploying DLMS communication over RF (Radio Frequency) networks.
• Deep understanding of distributed systems and designing scalable solutions to support millions of devices concurrently.
• Expertise in cloud-based infrastructure (AWS, Azure, Google Cloud) to support large-scale simulations and testing environments.
• Knowledge of message queue systems like RabbitMQ, Kafka, and real-time data processing frameworks.
• Strong background in load testing frameworks (JMeter, Gatling) and performance profiling for large-scale applications.
• Knowledge of security standards in IoT and AMI environments, particularly DLMS encryption and secure communication protocols.
• Experience handling big data and large datasets generated by smart meters using SQL / NoSQL Design & Architecture :
• Ability to design end-to-end architectures for large-scale IoT networks with high throughput and low latency. Systems :
• Design and optimize fault-tolerant, distributed systems for real-time, large-scale meter Communication Protocols :
• Hands-on experience integrating MQTT, CoAP, and other lightweight IoT protocols into production systems is an :
• Bachelor's degree in computer science or any other degree with relevant experience

(ref : hirist.tech)