Senior Software Engineer (US Payments and Partner Operations)

• The US Payments & Partner Operations (PPO) team owns the core money-movement stack for the Raisin US’ platform: ACH payment initiation, reconciliation, returns, and cut-off scheduling, plus the customer accounts lifecycle — bank linking, fraud signal integration, and identity verification
• Beyond payments, the team manages the B2B layer: onboarding and configuring Deposit-taking Banks, service banks, and custodians, including their user/role management
• It also covers invoicing data pipelines for Deposit taking banks, escheatment workflows for dormant accounts and visibility for operations and customer support through our internal platform portal
• Own and deliver features and bug fixes end-to-end with minimal guidance
• Identify and address bottlenecks in the team’s delivery flow, from design to deployment
• Utilize AI tools intensively for increasing our ability and pace to deliver software
• Promote best practices around our core stack
• Transfer knowledge proactively, lead by example in learning and mentoring
• Contribute to improving how we program, test, review, and ship code
• Flag process gaps and propose pragmatic improvements
• Elevate engineers in growing their technical skills
• Provide constructive code review and solve complex problems together
• Quickly build practical depth in PPO’s domains
• Contribute meaningfully to new feature design and implementation
• Bring engineering perspective into domain discussions alongside other team roles like Product Manager, Tech Lead and Engineering Lead

Benefits

• Visa & Relocation Support
• 1,700 EUR Training Budget
• Free Choice of Hardware
• Beginner German Classes
• Food & Drinks
• Flexible working hours, home office and 28 vacation days
• Company Pension Scheme
• Team Events
• Subsidised Urban Sports Club Membership

We are looking for a versatile Senior Full-Stack Engineer with a deep, rock-solid foundation in the .NET and SQL Server ecosystem, who has the architectural maturity to adapt to other layers and the drive to learn the rest of our stackStructural Strategy: Practical experience working within modern architectural patterns, specifically Clean / Onion Architecture, to keep codebases decoupled and testableProblem Solver: Highly analytical with a strong focus on detail and qualityCollaborator: A team-first peer who thrives on open communication and cross-layer collaborationDesign Patterns: A deep understanding of SOLID principles and a proven track record of writing Clean CodeBuilding and structuring web applications with .NetDesigning, optimizing, and maintaining robust enterprise APIs using .NET Web APIFast Learner: You don’t mind stepping out of your .NET comfort zone to touch a React component or a Go microserviceStrong relational database design, complex querying, and performance tuning in SQL ServerWe value diversity and the unique experiences each individual brings. If you’re excited about this role but don’t meet every requirement, we still encourage you to applyExperience building user interfaces with React JS, JavaScript, and HTML, accompanied by testing tools like Jest or React Testing LibraryExperience with GraphQLExposure to, or curiosity about environments like Node.js, GoLang, or Java / Spring Boot, and building APIsWorking knowledge or conceptual familiarity with MongoDB or NoSQL DatabasesFamiliarity with NUnit for automated testingFamiliarity with secure authentication via OAuth and ASP.NET Identity