Senior .Net Developer - Mjølner Madrid

PARETO SECURITIES AS; España; Presencial; EUR 65.000 - 90.000; Jornada completa

Descripción de la vacante

Mjølner Informatics invites a Senior Developer to join our Madrid team, building meaningful software for Danish and international clients. You will work in a Nordic-inspired culture with low hierarchy, high trust, and a passion for quality.

The role centers on .NET/C#, backend architecture, RESTful APIs, microservices, and cloud environments (Azure/AWS). We value continuous learning, work-life balance, and collaboration across our offices.

Formación

• University degree in Computer Science, Software Engineering, or a related field.
• Minimum 5 years of experience as a .NET developer with solid C# expertise.
• Experience with backend architecture and RESTful APIs.
• Strong understanding of relational databases (SQL Server) and data modelling.
• Experience with Microservices, containerization, and cloud environments (Azure or AWS).
• Familiarity with Azure DevOps, Terraform, Kubernetes and CI/CD pipelines.
• Familiarity with AI tools to enhance productivity and problem solving.

Responsabilidades

• Develop software solutions for Danish and international clients.
• Work on project-based assignments within a strong professional community.
• Contribute to knowledge sharing and maintain high code quality.

Conocimientos

University degree in Computer Science

5+ years .NET development

RESTful APIs

Backend architecture

Relational databases (SQL Server)

Microservices

Containerization

Cloud environments (Azure/AWS)

Azure DevOps

Terraform

Kubernetes

CI/CD pipelines

AI tools usage

Educación

University degree in Computer Science or related field

Herramientas

Azure

AWS

Terraform

Kubernetes

CI/CD pipelines

Descripción del empleo

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Three years ago, Mjølner Informatics opened its first international office in Madrid.We are growing our Madrid team and looking for a Senior Developer who wants to build meaningful software solutions together with skilled colleagues in Spain and Denmark. You will work on project-based assignments for Danish and international clients, while being part of a strong professional community where knowledge sharing, trust and work-life balance matter.

Abitaboutus

WedevelopbusinessthroughIT,together.

Whenthetaskischallengingandthesolutionisn'tobvious,we'retherightpeopletocall.That'sbeentruesinceninecomputerscientistsfromAarhusUniversityfoundedMjølnerin1988.Eversince,we'vebeenturningourcustomers'complexchallengesintoconcrete,high-qualityITsolutions.

Likethehammerwe'renamedafter,wehitthemarkandcomebackstronger.Webelieveinofferingmorethanaworkplace:a"workhome,"shapedbycommunity,strongprofessionaldialogueandaculturepeoplegenuinelywanttobepartof.Weenjoyourwork,butwealsovalueourtimeoffandunderstandtheimportanceofbalance.

Thatcultureisalsowhywe'reexcitedaboutwhat'sahead:we'recurrentlyintheprocessofbeingacquiredbyAccenture.Fornow,ithasnoconcreteimpactonday-to-daylifeatthecompanyyou'llstillfindthesameteam,thesameculture,andthesamewayofworking.

SinceopeningourMadridofficethreeyearsago,we'vebeenonanexcitinggrowthjourneyandnowit'stimetowelcomeanewSeniorDevelopertoourteam.We'rerootedinScandinavianvalues:lowhierarchy,hightrust,clearcommunication,andgenuinework-lifebalance.

Projectsvarywidelyinscope,duration,industryandtechnology,though.NETiscurrentlyatthecoreofmostofoursoftwarework.

Freedomwithresponsibility,respectforfamilyandfreetime,arecentraltohowweworkwhichiswhyyou'llmanageyourownday-to-day.

Wealsobelieveinlookingoutforeachotherandinvestinginourprofessionalcommunity.That'swhyyou'llhavethechancetojoinourprofessionalguilds(Frontend,BackendandArchitecture,ITSecurity,amongothers),whereyoucandeepenyourcurrentexpertiseorbranchintonewareas.

Whatyoubring

• UniversitydegreeinComputerScience,SoftwareEngineering,orarelatedfield(orequivalentprofessionalexperience)
• Minimum5yearsofexperienceasa.NETdeveloper,withsolidexpertiseinC#andthe.NETecosystem
• Experiencewithbackendarchitectureanddesignpatterns,includingexperiencebuildingandmaintainingRESTfulAPIs
• Solidunderstandingofrelationaldatabases(e.g.SQLServer)andexperiencewithdatamodellingandqueryoptimization
• ExperiencewithMicroservicesarchitecture,containerization,andcloudenvironments(Azureand/orAWS)
• FamiliaritywithAzureDevOps,Terraform,Kubernetesand/orCI/CDpipelinesisanadvantage
• FamiliaritywithAItoolsandtechnologies,withtheabilitytoeffectivelyleveragetheminday-to-dayworktoenhanceproductivity,problem-solvingandoverallefficiency

Acurious,solution-orientedmindset,withagenuineinterestincontinuouslearningandtechnicalgrowthisalsohighlyappreciated.

Whatweoffer

You'llhaveplentyofopportunitiestoshareknowledge,attendtechmeetups,andcollaborateacrossteams,supportingbothyourowngrowthandthecompany'sambitions.Wevalueinnovativethinkingandwantyoutofellikeagenuinecontributortoourprojects,notjustateammemberbutsomeonehelpingshapewherewe'reheaded.

Tohelpyouthrive,we'llmakesureyouvisitusinDenmarkbothwhenyoujoinandonanongoingbasistomeetyourDanishcolleaguesandexperienceourculturefirsthand.Onsitecustomermeetingsmayalsocomeupfromtimetotime.

Therestofthetime,you'llbebasedatourofficeinCalleGoya(Madrid),rightinthecitycentre.

Whatyouget

• Acompetitivebasesalary,reflectingwhatyoubringtothetable
• AstrongsupportnetworkwithinourdeveloperteamandbackendGuild
• Ahybridsetupofminimum2daysintheoffice(Goya8,Madrid)
• 30businessdaysofvacation
• Arealwork-lifebalance,wemeanit,there'snoovertimeculture
• Theusualflexiblebenefitsdeductedfromyourgrosssalary:gymmembership,foodandtransporttickets
• Apeople-firstcultureandarolewhereyou'llgrowasadeveloperwhilemakingarealimpact

Interested?

We develop your business through IT - together

Mjølner is an IT house specializing in software, digitalization, and end-to-end solutions. Although we love technology, we put business first. At our offices in Aarhus, Copenhagen, Silkeborg, Kolding, and Madrid, we are a collective of 400 specialists.

When the task is challenging, and the solution is not obvious, we are a good choice. This has been the case since nine computer scientists from Aarhus University founded Mjølner in 1988. Since then, we have turned customers’ complex challenges into concrete, high-quality IT solutions.

Like the famous hammer whose name we bear, we hit the mark – and come back stronger. We have the best colleagues because we offer a work home. An environment characterized by community, good professional dialogues, and a strong culture. We enjoy going to work, but we also value our leisure time and understand the importance of balance.

We get it, you got it. We are quick on our feet, heavy on knowledge, and strong on execution.