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Engineering ManagerFactorialOleiros, SpainSenior€92K–€104KEstimatedRuby on RailsReactBackendAIManager - FStaff AI Engineer - API & Integrations Team (Madrid)FactorialMadrid, SpainMid–Senior€94K–€107KEstimatedRuby on RailsReactBackend
- FStaff AI Engineer - API & Integrations Team (A Coruña)FactorialOleiros, SpainStaff€94K–€107KEstimatedRuby on RailsReactBackend
- FSenior Product Engineer - Finance DomainFactorialBarcelona, SpainSenior€61K–€77KEstimatedRuby on RailsReactBackendAIJavaScript
- FStaff AI Engineer - API & Integrations Team (Barcelona)FactorialBarcelona, SpainMid–Senior€94K–€107KEstimatedRuby on RailsReactBackend
- FSenior Product Engineer - Operations DomainFactorialBarcelona, SpainSenior€43K–€77KEstimatedRuby on RailsReactBackendAI modelsLLM
- FStaff Software EngineerFactorialBarcelona, SpainStaff€94K–€119KEstimatedRuby on RailsReactBackendLLM APIsAWS
- FFounding EngineerFactorialBarcelona, SpainMid€61K–€86KEstimatedRuby on RailsReactTypeScriptBackendFull-Stack
- FStaff Engineer — Performance, Reliability & AI AutomationFactorialMadrid, SpainStaffEUR 60K–80KEstimatedRuby on RailsTypeScriptBackendMySQLKafka
- FStaff Engineer — Performance, Reliability & AI AutomationFactorialOleiros, SpainStaffEUR 60K–80KEstimatedRuby on RailsTypeScriptBackendMySQLKafka
- FEngineering ManagerFactorialMadrid, SpainSenior€92K–€104KEstimatedRuby on RailsReactBackendAIManager
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