Senior Back-End Developer

About us:

Our product started as a side project in 2000 and now has a few hundred paying customers, mostly in Île-de-France. Small accounting firms in Île-de-France use our engagement letter and e-signature tool, and most heard about us from a colleague.

What this job is:

The previous person in this role moved to another team. The operations team owns services that process several million requests a day. We need another engineer who is comfortable owning them in production. Backend role focused on API design, data modelling and making slow things fast. Remote position. Most of the team is in Paris, but nobody is required to come in. Monday to Friday, regular working hours, flexible start and finish. You will need a reliable internet connection and a quiet place to work.

What you'll work on:

• Coordinate with frontend and mobile engineers on API contracts and versioning
• Tune slow queries, add indexes and read query plans
• Design and build REST and gRPC APIs in Go, Java or Python
• Secure endpoints with OAuth 2.0, JWT validation and proper input checks
• Containerize services with Docker and deploy them to Kubernetes or ECS

What you bring:

• 5+ years of backend development experience in a production environment
• Strong SQL and relational data modelling skills
• Familiarity with Docker and CI/CD pipelines
• Working knowledge of message queues or streaming platforms
• Experience designing and versioning HTTP APIs
• Understanding of concurrency, transactions, idempotency and retries

Preferred:

• Elasticsearch or OpenSearch
• Terraform or Pulumi

Perks and benefits:

Salary range: €74,000 - €85,000 annually

• Health insurance (mutuelle) covered at 60%
• Two days of remote work per week
• Profit-sharing
• Remote work allowance
• Training budget
• Meal vouchers

Start: Immediately.

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