Position: Senior Software Engineer (Backend)Contract type: B2B or Employment ContractWorking model: Fully remoteAbout the company:A technology-driven organization developing scalable software solutions that support complex business processes in a high-availability environment.Role overview:As a Senior Backend Engineer, you will be responsible for designing, developing, and maintaining backend systems across the full software development lifecycle. You will work on distributed, high-load systems and collaborate closely with cross-functional teams.Key responsibilities:Design, develop, and maintain complex backend services and APIsBuild and evolve microservices operating under high loadTake ownership of solutions from concept through deployment and maintenanceTroubleshoot, debug, and optimize existing systemsPrepare and execute system and integration testsCollaborate in an Agile, cross-functional environmentProvide technical guidance and mentoring to less experienced engineersRequirements (summary):5+ years of commercial software development experienceStrong experience with Java or Kotlin and Spring BootHands-on experience with microservices architectureSolid understanding of relational databases and SQLExperience with cloud platforms (Azure or GCP is a plus)Familiarity with Git and task management tools (e.g. Jira)What’s offered:Fully remote work and flexible cooperation modelChallenging, long-term projectsDevelopment budget and modern equipmentSupportive, inclusive engineering culture