POuttask is a globally established company with over 25 years of experience in IT. Our Spanish office, located in Valencia, focuses on creating highly specialized tech teams that tackle complex challenges for the world's industry leaders. /ppWe have a deeply rooted people focused culture and are a completely flat organization. /ppCreativity, innovation, and perseverance are our core values and are reflected in our entire team. /ppbr/ppWe’re hiring a full-time strongBackend Developer /strong with experience in modern Microsoft technical stack software engineering, backend integration, and cloud-native systems. /ppYou'll play a key role in building scalable backend services and robust integrations that drive operational efficiency and enhance our digital capabilities. /ppThis position requires strong backend engineering skills along with integration experience to support secure, reliable communication between platforms. strongEnglish /strong is the corporate language and spoken strongproficiency /strong is required for effective team and customer collaboration. /ppbr/ppstrongYour Responsibilities /strong /pulliDesign, prototype, and develop backend and middleware components using strong.NET 8 /strong and strongC# /strong /liliBuild maintain secure strongREST APIs /strong and automation layers to support internal and external integrations /liliCreate and maintain strongunit and integration tests /strong to ensure code quality and resilience /liliImplement strongtestable, scalable /strong, and strongrobust software /strong using established architectural patterns /liliEnsure service reliability with strongstructured logging /strong, strongdistributed tracing /strong, and stronghealth checks /strong /liliSupport and guide partners and customers on backend integration challenges /liliCollaborate in agile teams with architects, developers, and product stakeholders /li /ulpstrongTechnical Skills /strong /pulliProficiency in strongC# /strong and strong.NET 8/X /strong for building distributed backend systems /lilistrongYou routinely integrate AI coding assistants /strong (e.g., strongGitHub Copilot /strong, strongCursor /strong, or equivalents) into your workflow to automate boilerplate, refactors, and tests—shipping faster and writing cleaner code /liliStrong experience with strongPostgreSQL /strong or other relational databases /liliSolid understanding of strongCQRS /strong, strongpublisher-subscriber /strong, strongfactory /strong, and other key strongdesign patterns /strong /liliFamiliarity with strongdependency injection /strong and strongmodular service architecture /strong /liliSecure API design using strongJWT /strong, strongOpenID Connect /strong, and strongauthentication middleware /strong /liliHands-on experience with strongSwagger/OpenAPI /strong, strongPolly /strong for resiliency, and strongGit /strong for version control /liliProficient in deploying and operating containerized services with strongKubernetes /strong /liliExperience using strongAzure Service Bus /strong or other enterprise messaging solutions /liliWorking knowledge of strongcloud platforms /strong, especially strongAzure /strong /liliFamiliarity with strongDatadog /strong, strongSerilog /strong, strongOpenTracing /strong, and related observability tools /li /ulpstrongSoft Skills /strong /pulliStrong interpersonal and communication skills in strongEnglish /strong /liliExcellent analytical and troubleshooting abilities /liliProactive mindset and ability to independently manage tasks and deliverables /liliComfortable working in strongagile development environments /strong /li /ulpstrongPosition Details /strong /pullistrongRole /strong: Full-time /lilistrongExperience /strong: 1 medior + 1 senior in backend development and system integration. /lilistrongLanguages /strong: English (corporate language) /liliMust have a Spanish residence and work permit and/or a European passport already (we will not evaluate candidates without this legal requirement in order to speed up the hiring process this time) /li /ul