--> 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 Wedevelopbusinessthrough IT,together.
Whenthetaskischallengingandthesolutionisn'tobvious,we'retherightpeopletocall.
That'sbeentruesinceninecomputerscientistsfrom Aarhus Universityfounded Mjølnerin**.
Eversince,we'vebeenturningourcustomers'complexchallengesintoconcrete,high-quality ITsolutions.
Likethehammerwe'renamedafter,wehitthemarkandcomebackstronger.
Webelieveinofferingmorethanaworkplace:a"workhome,"shapedbycommunity,strongprofessionaldialogueandaculturepeoplegenuinelywanttobepartof.
Weenjoyourwork,butwealsovalueourtimeoffandunderstandtheimportanceofbalance.
Thatcultureisalsowhywe'reexcitedaboutwhat'sahead:we'recurrentlyintheprocessofbeingacquiredby Accenture.
Fornow,ithasnoconcreteimpactonday-to-daylifeatthecompanyyou'llstillfindthesameteam,thesameculture,andthesamewayofworking.
Sinceopeningour Madridofficethreeyearsago,we'vebeenonanexcitinggrowthjourneyandnowit'stimetowelcomeanew Senior Developertoourteam.
We'rerootedin Scandinavianvalues:lowhierarchy,hightrust,clearcommunication,andgenuinework-lifebalance.
Projectsvarywidelyinscope,duration,industryandtechnology,though.
NETiscurrentlyatthecoreofmostofoursoftwarework.
Freedomwithresponsibility,respectforfamilyandfreetime,arecentraltohowweworkwhichiswhyyou'llmanageyourownday-to-day.




Wealsobelieveinlookingoutforeachotherandinvestinginourprofessionalcommunity.
That'swhyyou'llhavethechancetojoinourprofessionalguilds(Frontend, Backendand Architecture, ITSecurity,amongothers),whereyoucandeepenyourcurrentexpertiseorbranchintonewareas.
Whatyoubring Universitydegreein Computer Science, Software Engineering,orarelatedfield(orequivalentprofessionalexperience) Minimum5yearsofexperienceasa.
NETdeveloper,withsolidexpertisein C#andthe.
NETecosystem Experiencewithbackendarchitectureanddesignpatterns,includingexperiencebuildingandmaintaining RESTful APIs Solidunderstandingofrelationaldatabases(e.G. SQLServer)andexperiencewithdatamodellingandqueryoptimization Experiencewith Microservicesarchitecture,containerization,andcloudenvironments(Azureand/or AWS) Familiaritywith Azure Dev Ops, Terraform, Kubernetesand/or CI/CDpipelinesisanadvantage Familiaritywith AItoolsandtechnologies,withtheabilitytoeffectivelyleveragetheminday-to-dayworktoenhanceproductivity,problem-solvingandoverallefficiency Acurious,solution-orientedmindset ,withagenuineinterestincontinuouslearningandtechnicalgrowthisalsohighlyappreciated.
Whatweoffer You'llhaveplentyofopportunitiestoshareknowledge,attendtechmeetups,andcollaborateacrossteams,supportingbothyourowngrowthandthecompany'sambitions.
Wevalueinnovativethinkingandwantyoutofellikeagenuinecontributortoourprojects,notjustateammemberbutsomeonehelpingshapewherewe'reheaded.




Tohelpyouthrive,we'llmakesureyouvisitusin Denmarkbothwhenyoujoinandonanongoingbasistomeetyour Danishcolleaguesandexperienceourculturefirsthand.
Onsitecustomermeetingsmayalsocomeupfromtimetotime.
Therestofthetime,you'llbebasedatourofficein Calle Goya(Madrid),rightinthecitycentre.
Whatyouget Acompetitivebasesalary,reflectingwhatyoubringtothetable Astrongsupportnetworkwithinourdeveloperteamandbackend Guild 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 **.
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

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