Senior Backend Engineer

Annual releases gave way to two-week sprints years ago, and the platform now handles over 200 million API calls a day. We started in 1992 and have grown to about 4,100 people. We keep recurring meetings to Tuesdays and Thursdays where we can.

The position:

We are adding a Senior Backend Engineer to our Payments team. The Payments team owns services that process several million requests a day. We need another engineer who is comfortable owning them in production. This is a hybrid role. Most of the team is in the London office Tuesday to Thursday.

Your responsibilities:

• Tune slow queries, add indexes and read query plans
• Review code for correctness, performance and failure handling
• Design and build REST and gRPC APIs in Go, Java or Python
• 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

Minimum qualifications:

• 5+ years of backend development experience in a production environment
• Comfort reading logs, metrics and traces to debug problems in production
• Understanding of concurrency, transactions, idempotency and retries
• Hands-on experience with AWS, GCP or Azure services
• Experience designing and versioning HTTP APIs
• Proficiency in at least one of Go, Java, Kotlin, Python, C# or Node.js

Nice to have:

• Background with high-volume payment or ledger systems
• Kubernetes, including Helm charts

Salary: £104,000 to £126,000 pa

Perks and benefits:

• Private medical insurance
• Workplace pension
• 33 days holiday including bank holidays
• Free parking
• Flexible working hours
• Enhanced maternity and paternity pay

We may close the vacancy early if we receive a high number of applications.

Start: Immediately.

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