Senior Backend Engineer for the Purchase domain within the Pre-order Shipping team at Vinted, based in Vilnius, Lithuania. You will be part of cross‑functional product teams to implement business logic, develop APIs for mobile and web, and scale backend systems to meet growing platform needs. The Purchase domain supports the checkout, payment, shipping, and messaging flows, and you will help evolve our backend by extracting functionality from the monolith into standalone services using Ruby. You will contribute to continuously tested and deployed applications by adding tests, implementing feature flags, and setting up A/B tests for new features. You’ll participate in an on‑call rotation to support critical systems and maintain service reliability, focusing on root‑cause analysis and post‑mortems. You will monitor deployed code with Kibana, Grafana, and Datadog, and apply Agile and Lean principles in collaboration with others via GitHub pull requests and code reviews. See your code affect millions of users as changes roll out to production on every merge. You will own SLIs/SLOs in the product team to ensure quality and reliability, and partner across teams to prioritize and align roadmaps to deliver results. You will drive complex initiatives end‑to‑end, proactively identifying architectural bottlenecks or process inefficiencies before they impact the business. You will mentor others by sharing knowledge, providing guidance, and giving constructive feedback. About you: you have solid backend engineering experience with a track record of delivering complex projects end‑to‑end

Senior Backend Engineer for the Purchase domain within the Pre-order Shipping team at Vinted, based in Vilnius, Lithuania. You will be part of cross‑functional product teams to implement business logic, develop APIs for mobile and web, and scale backend systems to meet growing platform needs. The Purchase domain supports the checkout, payment, shipping, and messaging flows, and you will help evolve our backend by extracting functionality from the monolith into standalone services using Ruby. You will contribute to continuously tested and deployed applications by adding tests, implementing feature flags, and setting up A/B tests for new features. You’ll participate in an on‑call rotation to support critical systems and maintain service reliability, focusing on root‑cause analysis and post‑mortems. You will monitor deployed code with Kibana, Grafana, and Datadog, and apply Agile and Lean principles in collaboration with others via GitHub pull requests and code reviews. See your code affect millions of users as changes roll out to production on every merge. You will own SLIs/SLOs in the product team to ensure quality and reliability, and partner across teams to prioritize and align roadmaps to deliver results. You will drive complex initiatives end‑to‑end, proactively identifying architectural bottlenecks or process inefficiencies before they impact the business. You will mentor others by sharing knowledge, providing guidance, and giving constructive feedback. About you: you have solid backend engineering experience with a track record of delivering complex projects end‑to‑end