Job Title: Senior Web Application Developer (PHP, Node.js, PostgreSQL/MariaDB/MySQL, IoT, MQTT, STOMP, NoSQL) : We are seeking a Senior Web Application Developer with solid expertise in PHP (CodeIgniter, Laravel), Node.js, and relational databases (PostgreSQL, MariaDB, MySQL). The preferred candidate should have experience building scalable web applications and real-time IoT solutions. Familiarity with MQTT, STOMP, and NoSQL databases will be an added advantage.

Role Overview: As a Senior Web Application Developer , you will design, build, and maintain high-performance web applications. Your work will include backend APIs, database design, and real-time communication systems that support IoT-based applications. You will work closely with frontend developers, DevOps engineers, and product teams to deliver scalable, secure, and highly available applications.

Key Responsibilities: Build and maintain web applications using PHP (CodeIgniter, Laravel) and Node.js . Design, maintain, and optimize database schemas using PostgreSQL, MariaDB, or MySQL. Develop and integrate RESTful APIs, WebSockets, and real-time messaging protocols like MQTT, STOMP, and AMQP .

Implement

NoSQL solutions (MongoDB, Redis, Cassandra, or DynamoDB) to support high-performance data storage. Work with IoT protocols and build data ingestion pipelines for connected devices. Improve application performance, scalability, reliability, and security.

Write clean, maintainable, well-documented code in line with established best practices.



Work closely with frontend developers to deliver full-stack applications. Implement unit and integration testing along with automated deployment pipelines.

Diagnose and resolve complex application and server-side issues. Keep up to date with evolving web technologies, frameworks, and security practices.

Required Skills &

Experience: 5 years of professional experience in web application development. Strong expertise in PHP frameworks (CodeIgniter, Laravel) . Practical experience with Node.js and asynchronous programming. Strong proficiency in relational databases such as PostgreSQL, MariaDB, or MySQL.

Experience with real-time communication using MQTT, STOMP, or WebSockets. Solid understanding of RESTful API development and microservices architecture. Working knowledge of NoSQL databases (MongoDB, Redis, or Cassandra). Familiarity with authentication and authorization protocols (JWT, OAuth, API Keys) .

Experience with Docker, Kubernetes, and cloud platforms (AWS, Azure, GCP) is a plus. Good understanding of Linux environments, shell scripting, and server administration. Strong analytical, problem-solving, and debugging skills.

Good to Have: Prior experience developing IoT applications involving device management, telemetry, and real-time analytics. Knowledge of IoT protocols such as CoAP, LoRaWAN, Zigbee, or WebRTC .

Experience working with Apache Kafka, RabbitMQ, or similar message brokers. Practical experience with GraphQL APIs. Familiarity with CI/CD practices, Git workflows, and modern DevOps processes.

📌 Senior Web Application Developer (PHP, Node.js, PostgreSQL/MariaDB/MySQL, IoT, MQTT, STOMP, NoSQL) (Kolkata)
🏢 Red Dream Ventures Private
📍 Kolkata