Backend Support Engineer - Monetization & Reliability

Lago; Paris; Sur place; EUR 65 000 - 90 000; Plein temps

Résumé du poste

Lago is hiring a Support Engineer to join the Product team. This backend role focuses on production-grade problem solving for real users, acting as the technical first responder for product and infrastructure issues, and contributing code or fixes where necessary.

You will bridge user success and product reliability, writing code, reviewing logs, running local instances, and helping move the product forward with real-world use.

Qualifications

• 3+ years of backend experience in infrastructure, billing, or API-heavy products.
• Strong ability to debug production systems from stack traces to SQL queries and logs.
• Experience with REST APIs, authentication flows, webhooks, and asynchronous jobs.

Responsabilités

• Investigate, debug, and resolve technically complex support cases from users running Lago in production
• Reproduce issues locally, inspect logs and database state, and propose or apply code fixes as needed
• Contribute directly to the Lago codebase (Ruby, PostgreSQL, Sidekiq) to resolve bugs and improve reliability
• Write internal tools, diagnostics, or scripts that improve the support workflow and user troubleshooting
• Improve system resiliency based on user feedback and incident patterns
• Maintain and improve support documentation, runbooks, and postmortems
• Collaborate with Product and Engineering on prioritizing bug fixes and technical debt

Connaissances

Backend engineering

Debugging production

REST APIs

Technical documentation

Communication

Outils

Ruby on Rails

PostgreSQL

Sidekiq

Redis

Description du poste

Lago is hiring a Support Engineer to join the Product team. This backend role focuses on production-grade problem solving for real users, acting as the technical first responder for product and infrastructure issues, and contributing code or fixes where necessary.

You will bridge user success and product reliability, writing code, reviewing logs, running local instances, and helping move the product forward with real-world use.