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Senior Software Engineer

immowelt · Berlin, Germany

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Build the platform other engineers love to use.We’re working with a leading European digital platform that supports millions of users every year. Behind the scenes is a large, mature engineering organisation — and a dedicated team whose mission is simple but ambitious:Make building software fast, reliable, and enjoyable.Developer Experience here is treated as a first‑class product, not an afterthought.The OpportunityAs a Senior Software Engineer, you’ll help design and evolve an internal engineering platform used by autonomous product teams across the organisation.You’ll operate at the intersection of platform engineering, DevOps, and product development, shaping standardised “golden paths” while removing friction from the entire software delivery lifecycle.This is a high‑ownership role with real influence over both what gets built and how engineering teams work.What You’ll Work OnBuilding and scaling internal platform services used by product teams dailyDesigning reusable platform patterns, service boundaries, and building blocksCreating self‑service workflows that enable teams to spin up, deploy, and run services in minutesDeveloping backbone libraries and SDKs for consistent service developmentDefining and evolving engineering standards and golden paths (CI/CD, repos, workflows)Applying AI and automation to boost developer productivity and reduce manual effortImproving observability, reliability, and platform consistency across servicesRemoving bottlenecks and simplifying cross‑team collaboration with DevOps, QA, and SecurityYour Background7+ years of professional Software engineering or Platform Engineering experienceStrong hands‑on experience with C# / .Net Core coding skillsSolid experience with AWS, CI/CD, and Infrastructure as CodeExperience building internal platforms, tooling, or reusable servicesFamiliarity with observability and monitoring tooling (e.g. Datadog, Prometheus, ELK)Hands‑on exposure to AI in engineering workflows (automation, optimisation, productivity)Terraform and CircleCI experience are strong plusesHow You Think & WorkYou treat developer experience as a productYou value simplicity, automation, and self‑service over complexityYou deliver pragmatically, iterate fast, and avoid over‑engineeringYou’re comfortable making decisions with incomplete informationYou communicate clearly and influence beyond your immediate teamWhy Engineers JoinWork on platform problems at real scaleHigh autonomy and trust — outcomes matter more than processStrong engineering culture with senior‑level peersOpportunity to shape how hundreds of engineers build and ship softwareCompetitive compensation and long‑term stability