Senior Backend Developer

About the company

More than 300 employees work on the product, from search ranking to fraud detection. We run a marketplace with over 300,000 active sellers and fulfillment centres in four regions. Our office has a quiet floor and a loud floor.

Role overview

Edwards Apps has an opening for a Senior Backend Developer. The Core API team owns services that process several million requests a day. We need another engineer who is comfortable owning them in production. You'll work mostly on server-side code: services, queues, databases and the glue between them. Little to no frontend work. Our headquarters is in Sheffield, and about a third of the team works remotely from other countries. We engage team members in Uruguay as full-time contractors. Most of our contractors have been with us for more than two years. You will need to be available during UK office hours, at least until 3:00 PM GMT. You need a reliable internet connection and somewhere quiet to work.

What you'll be doing

Design and build REST and gRPC APIs in Go, Java or Python. Secure endpoints with OAuth 2.0, JWT validation and proper input checks. Reduce cloud costs by right-sizing services and cleaning up unused resources. Implement background jobs and event consumers using Kafka, SQS or RabbitMQ. Document APIs in OpenAPI and keep the docs current. Write integration and contract tests so API changes don't break consumers. Coordinate with frontend and mobile engineers on API contracts and versioning. Add caching with Redis where it actually helps, and remove it where it doesn't.

Qualifications

5+ years of backend development experience in a production environment. Familiarity with Docker and CI/CD pipelines. Experience designing and versioning HTTP APIs.

Preferred qualifications

Terraform or Pulumi.

What you get

Salary range: $6,000 - $8,200 monthly

Monthly payments via wire transfer or Wise. Monthly internet allowance. Annual rate review.

Please submit your CV in English.

Duration: 6 months. Start: Immediately.

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