Backend Developer - Ruby on Rails

Who we are:

The product is a mobile app plus a React web dashboard, with a Python and PostgreSQL backend on AWS. Laptops are MacBook Pros, and you pick your own editor.

What this job is:

Tinsmith Labs is hiring a Backend Developer - Ruby on Rails to work remotely from Bangladesh. We want someone who writes boring, reliable code and leaves good logs behind. Remote position. Most of the team is in Dhaka, but nobody is required to come in. Normal working hours, Monday to Friday. Please make sure you have dependable internet and backup power.

What you'll work on:

Document APIs in OpenAPI and keep the docs current. Reduce cloud costs by right-sizing services and cleaning up unused resources. Secure endpoints with OAuth 2.0, JWT validation and proper input checks. Instrument services with metrics, structured logs and OpenTelemetry traces.

Requirements:

Proficiency in at least one of Go, Java, Kotlin, Python, C# or Node.js. Familiarity with Docker and CI/CD pipelines. Hands-on experience with AWS, GCP or Azure services. Working knowledge of message queues or streaming platforms. Understanding of concurrency, transactions, idempotency and retries.

Bonus points:

Background with high-volume payment or ledger systems. Kubernetes, including Helm charts. Terraform or Pulumi.

What we offer:

Salary: BDT 90,000 - BDT 115,000 per month

Medical insurance. Provident fund. Paid leave. Fuel allowance.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Tinsmith Labs.