Senior .NET Developer (English, ReactJS)

HRS AS A COMPANYHRS is transforming the future of corporate travel through innovative technology. In a $600 billion global lodging and meetings market, inefficiencies are rampant—from frustrating traveler experiences caused by outdated check-in and payment systems to millions lost annually due to missing or non-compliant invoices that block VAT reclaim. With travel increasingly complex and fragmented, the opportunity for innovation is enormous—and HRS is leading the charge.HRS offers an unparalleled end-to-end solution for managing corporate lodging, group travel, long stay, and meetings—all within a single, unified platform. With HRS Connect, companies gain access to a sleek, consumer-grade booking interface that consolidates fragmented travel spend and delivers full visibility across all travel categories. This is paired with HRS’s proprietary AI Copilot, which enables travel and procurement leaders to steer their programs strategically with real-time data, actionable insights, and one-click implementation of optimizations.Together, these solutions empower organizations to drive measurable cost savings, boost policy compliance, and radically improve the traveler experience. The HRS platform enables customers to achieve up to 3x return on investment, achieve 100% invoice compliance, and increase corporate program adoption by over 20%—particularly in unmanaged spend areas like meetings and groups.With over two decades of proprietary data, market-leading AI, and deep integration across the travel and expense ecosystem, HRS powers travel programs for 35% of the Fortune 500. From seamless payment to VAT-compliant e-invoicing and real-time reconciliation with SAP Concur and other ERP platforms, HRS offers unmatched transparency, governance, and performance—turning travel into a data-driven advantage with a sharp focus on customer excellence, compliance, and automation. BUSINESS UNITFinTech engine is at the core of HRS’s value proposition—simplifying travel payments, automating invoicing, and transforming spend data into actionable insights. Key HRS innovations such as seamless payments, automated invoice validation, fully eligible VAT reclaim, and actionable spend data insights are all powered by the FinTech organization.These capabilities not only drive bottom-line improvements and ensure regulatory compliance for our customers but also play a critical role in enabling HRS’s go-to-market strategy. As Pay adoption grows, it strengthens our global partner ecosystem—unlocking network effects that drive greater value and scalability across the platform. FinTech doesn’t just support the travel experience; it powers a strategic financial layer that helps enterprises manage risk, reclaim costs, and optimize spend.As a member of the FinTech team, you’ll operate at the crossroads of travel and finance, helping some of the world’s leading businesses streamline complex payment flows and gain control over their global travel spend—with visibility, automation, and intelligence at every step. CHALLENGE Develop, test, and maintain applications using .NET, ReactJS, HTML, CSS, SQL Server, MongoDB… Collaborate with cross-functional teams to analyze the business requirement, design, and deliver the best solution. Write technical specifications. Write clean code following the best practices and coding standards. Identify, analyze, and resolve bugs and issues promptly. Design and manage databases using SQL-Server and MongoDB to optimize performance. Perform a unit test to ensure the Product quality. Participate in code reviews and provide constructive feedback to peers.