Senior Backend Engineer (Ruby on Rails)

Trellisbound employs 4,500 people across engineering hubs in London and three other locations, building ERP software for mid-market manufacturers. We run one of the larger SaaS platforms for commercial insurance carriers, processing millions of policy transactions a year. Most engineers work remotely and come into the office one week a quarter for planning.

Position summary:

We're looking for a Senior Backend Engineer (Ruby on Rails) to join our team. This is a remote role. Backend role focused on API design, data modelling and making slow things fast. The company is based in London, the UK. We are a distributed team spread across a few time zones. You will join as an independent contractor on a long-term agreement. Payment is monthly in USD. Working hours overlap with UK business hours. We use Slack, Notion and Google Meet. Cameras on for team calls.

In this role you will:

• Implement background jobs and event consumers using Kafka, SQS or RabbitMQ.
• Add caching with Redis where it actually helps, and remove it where it doesn't.
• Containerize services with Docker and deploy them to Kubernetes or ECS.
• Handle on-call for services the team owns and lead incident follow-ups.
• Tune slow queries, add indexes and read query plans.
• Model data and write migrations for PostgreSQL, MySQL or DynamoDB.
• Document APIs in OpenAPI and keep the docs current.

What you need:

• 7+ years of backend development experience in a production environment.
• Hands-on experience with AWS, GCP or Azure services.
• Understanding of concurrency, transactions, idempotency and retries.
• Clear written communication, including design docs.
• Proficiency in at least one of Go, Java, Kotlin, Python, C# or Node.js.
• Working knowledge of message queues or streaming platforms.
• Strong SQL and relational data modelling skills.

Preferred:

• NoSQL stores such as MongoDB, Cassandra or DynamoDB.
• Terraform or Pulumi.

Benefits:

• Monthly payments via wire transfer or Wise.
• Flexible hours.
• Monthly internet allowance.

Duration: 6 months. Start: Immediately.

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