Backend Engineer - AWS/Python/Node.js

We are looking for Backend engineers with IOT, AWS, Python, Node JS.

Location is Trivandrum.

Key Responsibilities :

- Design & Development of cloud infrastructure that is secure, scalable, and highly available on AWS.

- Provision, configure and maintain AWS cloud infrastructure defined as code.

- Troubleshoot problems across a wide array of services and functional areas.

- Implementation of new features based on product requirements.

- Maintenance of existing applications including bug fixes and performance optimization.

- Integration with Firmware and Mobile Apps.

- UI/UX implementation following design specifications.

- Code review and technical documentation.

- Close collaboration with external clients for API integrations.

- Performance monitoring, logging, and optimization.

- Security implementation and authentication services (OAuth 2.0, JWT).

Required Skills & Experience :

- Expert in building backend services using NodeJS, Java, and Python.

- Experience in bidirectional IoT, getting data out of IOT as well as sending commands to IOT devices and triggering actions.

- Strong backend development experience with modern frameworks.

- Experience building and maintaining AWS infrastructure (VPC, EC2, Security Groups, EKS, IAM, ECS, Code Deploy, CloudFront, CloudWatch, RDS, Route53, S3).

- Expert in working on IoT devices includes different protocols, such as MQTT, WebSocket, and CoAP.

- Strong Experience with IoT cloud architectures.

- Design expertise and hands-on knowledge of REST, GraphQL, Angular, RDS, DynamoDB, Elasticsearch, and OpenSearch.

- Experience with CI/CD pipelines for backend and web application development.

- AWS platform expertise - specifically Lambda, API Gateway, DynamoDB, IoT Core, CloudFormation/CDK, S3, CloudWatch.

- Database architecture and optimization skills (SQL and NoSQL).

Must Have AWS Skills (Every item below is important) :

- AWS Lambda

- Amazon API Gateway

- AWS AppSync

- AWS Step Functions

- Amazon DynamoDB

- DynamoDB Streams

- Amazon RDS

- Amazon Aurora

- Amazon S3

- Amazon OpenSearch / Elasticsearch

- AWS IoT Core

- IoT Device Shadows

- IoT Topic Rules

- IoT Policies

- IoT Certificates (JITR)

- Amazon Cognito User Pools

- Amazon Cognito Identity Pools

- Amazon Cognito Sync

- AWS KMS

- AWS IAM

- AWS Secrets Manager

- AWS Systems Manager Parameter Store

- Amazon SNS

- Amazon SQS

- Amazon EventBridge

- Amazon EventBridge Scheduler

- Amazon SES

- Amazon Route 53

- Amazon CloudWatch Logs

- Amazon CloudWatch Alarms

- AWS STS

Languages & Runtimes :

- JavaScript

- Node.js 24.x

Testing & Quality :

- Jest

Skills

Backend Architecture, Python, Node.js, AWS, IoT, WebSockets, GraphQL, Java, AWS Lambda, API Gateway, ElasticSearch