Senior Cloud Backend Engineer

Summary

Join intent as a freelance Senior Cloud Backend Engineer to work on diverse IoT projects. You will build and maintain cloud infrastructure based on AWS, develop backend code and API interfaces, and contribute to various aspects of cloud backend development. The role involves working with technologies like AWS Lambda, API Gateway, ECS Fargate, and more. Occasional travel to the US may be required for the largest project. The position offers 100% remote work and flexible hours. After a successful collaboration, there's a possibility of joining the internal team for a long-term partnership.

Requirements

• AWS Lambda (provisioned-concurrency, SnapStart), API Gateway (REST + WebSocket), ECS Fargate, CloudFront, Cognito federation
• Time-series & relational data - designing schemas and retention policies in Amazon Timestream and Aurora Serverless v2
• ETL pipelines that land raw sensor blobs in S3 and publish Parquet/TFRecord “ML-ready” sets (Glue + Athena)
• WebSocket (API Gateway) fan-out, device-command queues, signed firmware delivery, staged roll-back logic
• Implementing field-level encryption with KMS, IAM least-privilege, WAF
• Building GDPR/CCPA compliant solutions, consent receipt storage, data-minimisation life-cycles
• Structured logging (JSON), CloudWatch/X-Ray tracing, metric alarms, cost-allocation tagging and Cost Explorer dashboards
• Load-testing & provisioned-capacity right-sizing
• Terraform (modules, workspaces) and GitLab CI/CD
• Secret rotation, SBOM generation, automated policy checks
• TypeScript/ Node.js (NestJS, Next.js)

Responsibilities

• Build and maintain cloud infrastructure based on AWS
• Develop backend code and API interfaces that support the business logic of a mobile application
• In the case of our biggest project, occasional travel to the US is expected

Benefits

• 100% remote work & flexible working hours
• Knowledge-sharing initiatives