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Black Box
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Senior Web Application Developer

Senior Web Application Developer

Black Box

5 years

3 - 5 Lacs

calcutta

Posted:1 day ago| Platform: GlassDoor logo

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Skills Required

developer design database communication support iot devops php node.js postgresql mariadb mysql websockets messaging mqtt nosql mongodb redis dynamodb data storage scalability security code stack testing integration deployment server development programming relational api microservices architecture authentication authorization jwt oauth docker kubernetes aws azure gcp linux scripting debugging management analytics zigbee apache kafka rabbitmq graphql git

Work Mode

On-site

Job Type

Part Time

Job Description

Role Overview:

As a Senior Web Application Developer , you will design, develop, and maintain high-performance web applications. You will work on backend APIs, database design, and real-time communication systems to support IoT-based applications. You will also collaborate with frontend developers, DevOps engineers, and product teams to build scalable, secure, and high-availability applications.

Key Responsibilities:

Develop and maintain web applications using PHP (CodeIgniter, Laravel) and Node.js .
Design 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) for high-performance data storage.
Work with IoT protocols and data ingestion pipelines for connected devices.
Optimize application performance, scalability, and security.
Write clean, maintainable, and well-documented code following best practices.
Collaborate with frontend developers to build full-stack applications.
Implement unit testing, integration testing, and automated deployment pipelines .
Debug and troubleshoot complex application and server-side issues.
Stay up-to-date with the latest web development technologies, frameworks, and security practices.

Required Skills & Experience:

5+ years of experience in web application development .
Strong expertise in PHP frameworks (CodeIgniter, Laravel) .
Hands-on experience with Node.js and asynchronous programming .
Proficiency in relational databases like PostgreSQL, MariaDB, or MySQL .
Experience in real-time data communication using MQTT, STOMP, or WebSockets .
Strong understanding of RESTful API development and microservices architecture .
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.
Understanding of Linux environments, shell scripting, and server administration .
Strong problem-solving and debugging skills.

Good to Have:

Previous experience in developing IoT applications involving device management, telemetry, and real-time analytics .
Knowledge of IoT protocols such as CoAP, LoRaWAN, Zigbee, or WebRTC .
Experience with Apache Kafka, RabbitMQ, or other message brokers .
Hands-on experience with GraphQL APIs .
Familiarity with CI/CD pipelines, Git workflows, and DevOps best practices .

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Senior Web Application Developer