Senior Software Engineer, C# / .NET – Billing System

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🕒 April 2

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Hypoport SE

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 1999

💳 Fintech

🏠 Real Estate

☁️ SaaS

Fintech • Real Estate • SaaS

Hypoport SE is a publicly listed parent company that operates a network of technology firms serving the FinTech, PropTech and InsurTech sectors. It provides platforms and software-enabled services that connect lenders, brokers, insurers and other financial and real-estate market participants, while promoting agile, self-organized workplace culture and digital, activity-based offices. Hypoport positions itself as a growth-focused technology network enabling B2B platform solutions and talent development across its group companies.

📋 Description

• You design, develop and take responsibility for a central billing system (C# / .NET, backend) and ensure its stable operation. • You work within an established .NET system landscape and take responsibility for evolving a long-standing codebase. • You analyze complex business and technical relationships and make well-founded technical decisions that sustainably improve and modernize the system. • You work with relational databases, web applications and REST APIs in the .NET environment. • You perform deployments, monitor production operations and follow issues through to robust solutions. • You identify technical debt early, assess it realistically and drive pragmatic, effective modernization. • Within the team you present technical topics clearly, stand by your decisions and provide guidance even in challenging situations.

🎯 Requirements

• You have many years of experience as a software developer with C# and .NET and feel comfortable working in large, existing backend systems. • Object-oriented development, ASP.NET, Entity Framework, REST APIs and relational databases are part of your core skills. • You are willing to work primarily in mature .NET codebases (e.g. .NET 4.7/4.8) and actively, realistically drive their modernization. • Clean Code, maintainable architectures and automated tests are guiding principles for your decisions. • You take ownership, communicate clearly and can represent technical positions confidently. • Experience with message brokers, CI/CD, Docker or AI-assisted development tools is a plus. • Experience in product-focused environments such as FinTech, platforms or SaaS completes your profile.

🏖️ Benefits

• Experienced colleagues who will support you and welcome you to the team • The opportunity to shape our shared future — with a high degree of freedom and scope for implementation • The chance to have impact across the Hypoport Group and leverage support from the group • Trust as part of our corporate values, which we aim to fulfill every day • A personal and flexible working environment where your needs are taken into account • Company pension plan and 30 days of annual leave per year (based on a 5-day week) • An attractive workplace with regular after-work and team events, and the option to bring dogs to the office • Free daily fresh lunch, drinks, brainfood as well as fruit and vegetables