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Backend Engineer (Go) - Payments Experience
Backend Developer
• Vor Ort
• Vollzeit
• 📍 Sofia
A Go backend engineer role in SumUp's Payments Experience team (Sofia, office-first), building the services that power merchant payouts across 37 markets. A key focus is migrating legacy services off an ageing platform database while continuing to deliver new merchant-facing capabilities.
Responsibilities
- ▹Build and ship features in the Payments Experience domain, including payout instrument flexibility and SUBA tooling
- ▹Maintain and support the operational health of the team's backend services
- ▹Contribute to decommissioning a legacy Ruby payout-settings service and cleaning up dependencies
- ▹Help remove Platform DB dependencies from the Bank Accounts service
- ▹Take part in planning and refinement sessions, sharing technical assessments and estimates
Requirements
- ▹Strong hands-on experience building applications in Go with solid grasp of the standard library
- ▹Comfortable working within microservices architectures and RESTful APIs
- ▹Good knowledge of SQL databases, particularly PostgreSQL, writing clean efficient queries
- ▹Familiarity with Kubernetes containerised deployments and AWS
- ▹Comfortable navigating multi-language codebases (Go and Ruby)
Soft skills
Openness to feedbackMotivation to solve real engineering problemsCollaborationComfort with technical migration challenges
What we offer
- ▹Virtual Stock Option programme
- ▹Annual L&D budget of €2,000 for conferences and further education
- ▹25 days of paid leave plus one extra day per year of service (up to 35)
- ▹Comprehensive health and life insurance including dental coverage
- ▹On-site yoga and co-sponsored Multisport card
- ▹Meal support
Languages: angol