React JS and Node JS Developer

Primary Responsibilities:

• Develop and maintain performant, scalable, and secure front-end applications using React, TypeScript, and JavaScript.
• Design and build robust backend services with Node.js and TypeScript.
• Work with relational and NoSQL databases such as PostgreSQL, MongoDB, or Cassandra, including time-series extensions where applicable.
• Implement reliable messaging and queuing solutions using RabbitMQ, Apache Kafka, or ActiveMQ.
• Manage pub/sub communication patterns with Redis Pub/Sub, NATS, or RabbitMQ exchanges.
• Deploy, manage, and scale applications on Kubernetes or Docker Swarm clusters.
• Integrate and manage SMTP relay solutions (e.g., Postfix) or work with enterprise email gateways for seamless email communication.
• Utilize Elasticsearch for advanced search capabilities and integrate identity/access management through Keycloak or Active Directory/LDAP.
• Secure application secrets and configuration using Secret Manager solutions.
• Monitor application health and performance metrics with Prometheus and Grafana.

Secondary Responsibilities:

• Develop and maintain AWS Lambda functions and integrate with AWS services like SQS, SNS, SES, ECS, S3, and DynamoDB.
• Implement secure and efficient protocols such as CoAP over TCP with AES encryption and manage key exchanges with RSA.
• Build scalable serverless architecture solutions.
• Integrate communication services such as Twilio for messaging and calls.
• Collaborate on IoT projects requiring secure and scalable infrastructures.

Qualifications:

• Strong proficiency in React, TypeScript, JavaScript, and Node.js.
• Experience with PostgreSQL, MongoDB, Cassandra, and related time-series extensions.
• Proven skills with RabbitMQ, Kafka, or ActiveMQ messaging platforms.
• Knowledge of Redis Pub/Sub, NATS, or RabbitMQ exchanges.
• Hands-on experience with container orchestration tools like Kubernetes and Docker Swarm.
• Familiarity with SMTP relay protocols, especially Postfix, and integration with email gateways.
• Experience using Elasticsearch, Keycloak or Active Directory/LDAP, Secret Manager, Prometheus, and Grafana.
• Understanding of AWS services: Lambda, SQS, SNS, SES, ECS, S3, and DynamoDB.
• Familiarity with secure communication protocols including AES encryption, RSA, and CoAP over TCP.
• Experience with serverless application architecture.
• Knowledge of Twilio and IoT platforms is a strong plus.