
We are looking for
WorkÂing StuÂdent SoftÂware DevelÂopÂment (m/​f/​d) – HR Tech & Micro Apps for CorÂnerÂstone OnDemand
talessio is an impleÂmenÂtaÂtion and conÂsultÂing partÂner for CorÂnerÂstone OnDeÂmand, one of the world’s leadÂing talÂent manÂageÂment platÂforms. For our enterÂprise clients in the DACH region, we develÂop our own prodÂuct suite under the talÂentÂtrends brand – extendÂing CorÂnerÂstone with anaÂlytÂics, inteÂgraÂtion and AI capaÂbilÂiÂties, includÂing Micro Apps: comÂpact web appliÂcaÂtions that bring HR processÂes directÂly into Cornerstone.
Your responsibilities
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You develÂop Micro Apps from idea to deployÂment: dashÂboards, approval workÂflows and comÂpliÂance views for HR teams at large enterprises
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FronÂtend and backÂend with C#/.NET (BlaÂzor) and SQL
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InteÂgraÂtion of CorÂnerÂstone interÂfaces (REST, ODaÂta, reportÂing database)
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DeployÂment and operÂaÂtions on Microsoft Azure
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ConÂcept and UX design togethÂer with our conÂsulÂtants – your code goes live with real clients
Your profile
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Enrolled in comÂputÂer sciÂence, busiÂness inforÂmatÂics, media inforÂmatÂics or a comÂpaÂraÂble degree program
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SolÂid skills in at least one proÂgramÂming lanÂguage (C# is ideÂal, but TypeÂScript, Java or Python are a good founÂdaÂtion) and a basic underÂstandÂing of web development
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Basic SQL skills
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StrucÂtured, self-reliant way of workÂing; you use modÂern AI tools proÂducÂtiveÂly rather than just passively
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FluÂent GerÂman, good English
What we offer
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FlexÂiÂble 12–20 hours/​week around your studÂies, hybrid (TübinÂgen office + remote)
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Your own projects with real prodÂuct impact instead of intern busywork
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ModÂern stack: .NET, BlaÂzor, Azure, SQL, LLM integration
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Apple hardÂware
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Prospect of a theÂsis project or a perÂmaÂnent position

Your job?
Your appliÂcaÂtion – no covÂer letter
Instead of a covÂer letÂter, you apply with code: We give you a realÂisÂtic HR probÂlem and samÂple data – what you build with it is up to you. There is no hidÂden modÂel soluÂtion; we want to see how you think, priÂorÂiÂtize and decide. EstiÂmatÂed effort: approx. 6–8 hours. You can find the details in the task descripÂtion here.
Send us the link to your Git reposÂiÂtoÂry togethÂer with your CV to: