Backend Engineer

Skills this role screens for

About the role

Esoft lab is hiring for Backend Engineer

The company

About the Company

Esoft lab builds technology solutions that connect cloud platforms, applications, and intelligent devices. The team works on secure, scalable products for modern digital and IoT-driven environments, with a strong focus on engineering quality, reliability, and customer outcomes.

The work

Responsibilities

• Design, develop, and maintain secure, scalable, highly available backend services and AWS cloud infrastructure.
• Provision and manage infrastructure as code, troubleshoot distributed systems, and deliver product features.
• Build bidirectional IoT capabilities for device data, commands, actions, device shadows, topic rules, certificates, and policies using MQTT, WebSocket, and CoAP.
• Integrate backend services with firmware, mobile applications, external client APIs, and user interfaces.
• Implement REST and GraphQL APIs, OAuth 2.0 and JWT authentication, monitoring, logging, performance optimization, code reviews, and technical documentation.
• Collaborate closely with engineering teams and external clients to deliver dependable integrations and continuously improve existing applications.

Who they want

Requirements

This is a full-time, in-office opportunity based in Thiruvananthapuram. Compensation is ₹20–40 LPA and is flexible for the right candidate.

• Strong backend development expertise with Node.js, JavaScript, Java, Python, and modern frameworks.
• Hands-on AWS experience across Lambda, API Gateway, AppSync, Step Functions, DynamoDB and Streams, RDS, Aurora, S3, OpenSearch or Elasticsearch, IoT Core, CloudFormation or CDK, Cognito, KMS, IAM, Secrets Manager, Parameter Store, SNS, SQS, EventBridge, SES, Route 53, CloudWatch, STS, VPC, EC2, ECS, EKS, CloudFront, and deployment services.
• Experience with SQL and NoSQL database architecture and optimization, CI/CD pipelines, Angular, Jest testing, and Node.js 24.x.
• Practical understanding of IoT cloud architecture, device protocols, security, authentication, observability, and high-availability design.
• Candidates should submit a role-relevant CV that clearly demonstrates these capabilities rather than a generic profile.