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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.

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📌 Senior .Net Developer - Mjølner Madrid (España)
🏢 Pareto Securities As
📍 España