Senior Fullstack Developer (.NET Angular)

At SINGU, we’re redefining how the world’s most ambitious real estate companies run their operations. Our mission is to become Europe’s leading platform for managing warehouse, logistics, retail, and multi-site commercial real estate portfolios — empowering our Clients to protect revenue, boost efficiency, and unlock new value across every aspect of their business. Our unified CAFM platform already powers the daily operations of over 250 million m² of real estate worldwide, supporting more than 500,000 professionals. Following our union with the UK’s Micad and Germany’s net-haus, we now help manage 100,000+ buildings across 35+ countries — and we’re just getting started. Backed by a leading growth equity investor, we’re scaling rapidly and partnering with global leaders such as Prologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. As we continue to grow through strategic acquisitions and bold innovation, we stay true to our core values: adaptability, collaboration, and client focus. If you’re ready to help build Europe’s leading platform for property operations — and make a tangible impact on how the real estate industry works — join SINGU and be part of this transformation.

About the RoleWe're seeking a Senior Full Stack Developer to join our product team and take ownership of everything from backend architecture to customer-facing interfaces. You'll collaborate with the Team Lead, Product Manager, and Product Designer to build reliable, secure, high-quality software.

The role is hybrid (3days on-site from Cracow, 2 days remotely) As a senior engineer, you'll lead code reviews, uphold strong testing practices, mentor junior engineers, and effectively use AI-assisted development tools like Cursor or Claude Code.

What You'll DoBackend Development

Build and evolve backend applications in .

NET 10 and C# 14Design REST APIs that are consistent, secure, and well-documented

• Design PostgreSQL database structures, and optimize queries, indexes, and overall performance
• Frontend Development
• Build user interfaces in Angular and Type
• Script
• Take an active role in our frontend rewrite using Angular
• Ensure UI implementations are performant, maintainable, and true to the product design
• Quality & Testing
• Treat unit and integration testing as a core part of development, not an afterthought
• Lead and participate in code reviews with clear, constructive feedback
• Write clean, secure, maintainable code aligned with our standardsAI-Assisted Development
• Use AI tools (Cursor, Claude Code, or similar) to accelerate development, code analysis, and refactoring
• Critically evaluate the correctness, quality, security, and performance of AI-generated code before it ships
• Delivery & Collaboration
• Work within GitHub and CI/CD to deliver features reliably and on time
• Collaborate closely with your Team Lead, Product Manager, and Product Designer, and actively participate in Agile ceremonies
• Share knowledge and mentor less experienced engineers
• What We're Looking For
• Strong hands-on experience with .

NET and C#Solid experience building interfaces in Angular and Type

• Script
• Experience designing REST APIs and working with Postgre
• SQLA genuine testing habit — unit and integration tests as standard practice
• Comfort leading code reviews and giving direct, useful feedback
• Practical experience with AI-assisted development tools, and the judgment to critically assess what they produce
• Excellent command of English and strong collaboration skills within a cross-functional team