Senior C#/.NET Engineer (relocation to Madrid)

<div>We are looking for a<strong> Senior C# Engineer</strong> to join our FinTech team developing a remittance and payment services platform. The project focuses on building secure and compliant systems for international money transfers, partner integrations, and automation of financial operations.</div><div>We expect the new team member to be technically strong, proactive, and business-oriented, with proven experience in FinTech system development — ideally in areas such as core banking, remittance, or API-based financial integrations. You will work closely with business and operations teams to ensure efficient, accurate, and transparent financial workflows.</div><div><br></div><div><strong>Only candidates located in Madrid (or willing to relocate) will be considered.</strong></div><div><br></div><p><strong>Details</strong></p><div><strong>Location:</strong> Madrid (or relocation to Madrid)<br><strong>Employment Type:</strong> Full-time<br><strong>Start Date:</strong> ASAP<br><strong>Language Requirements:</strong> English B2+</div><div><br></div><p><strong>Project Description</strong></p><div>A licensed <strong>remittance and payment services provider</strong> focused on delivering fast, secure, and compliant international transfers.<br>The company operates within the <strong>FinTech domain</strong>, serving global remittance corridors and integrating with multiple partners and financial institutions through <strong>API-based connectivity</strong>.</div><div><br></div><p><strong>Requirements / Your Background</strong></p><ul style="margin-top:0cm;" type="disc"><li><strong>5+ years</strong> of commercial experience in backend development using <strong>C# / .NET</strong></li><li>Proven experience in <strong>FinTech systems</strong> — core banking, remittance platforms, payment processing</li><li>Strong understanding of <strong>money movement, reconciliation, and transaction workflows</strong></li><li>Hands-on experience with <strong>RESTful APIs</strong>, partner/banking integrations, and financial automation</li><li>Solid knowledge of <strong>SQL databases</strong> and experience with data consistency/reconciliation logic</li><li>Experience building and maintaining <strong>scalable backend services</strong> and API-based architectures</li><li>Understanding of <strong>security and compliance</strong> related to financial data exchange</li><li>Ability to define and document <strong>functional and technical requirements</strong></li><li>Experience collaborating with <strong>business and operations teams</strong> to improve financial processes</li><li>Excellent communication skills and a proactive, problem-solving mindset</li><li>English <strong>B2+</strong></li></ul><div><br></div><p><strong>Key Responsibilities</strong></p><ul style="margin-top:0cm;" type="disc"><li>Develop and maintain backend services in <strong>C#</strong></li><li>Build integrations with <strong>partner and banking APIs</strong></li><li>Automate internal operations and <strong>reconciliation processes</strong></li><li>Contribute to functional and technical requirements definition</li><li>Collaborate closely with business and operations teams to <strong>optimize financial workflows</strong></li></ul>