Senior Software Engineer (US Payments and Partner Operations)

Join Raisin, a leading fintech company, as a Senior Software Engineer in the US Payments and Partner Operations team. You will own and deliver features and bug fixes end-to-end, identify and address bottlenecks in the team's delivery flow, and promote best practices around our core stack. You will also have the opportunity to mentor and elevate other engineers, contribute to new feature design and implementation, and bring an engineering perspective into domain discussions. Enjoy a range of benefits including visa and relocation support, a training budget, flexible working hours, and a company pension scheme.

• Own and deliver features and bug fixes end-to-end with minimal guidance, identifying and addressing bottlenecks in the team's delivery flow.
• Utilize AI tools intensively for increasing the ability and pace to deliver software, promoting best practices around the core stack.
• Transfer knowledge proactively, lead by example in learning and mentoring, and contribute to improving how the team programs, tests, reviews, and ships code.
• 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 stack
• Structural Strategy: Practical experience working within modern architectural patterns, specifically Clean / Onion Architecture, to keep codebases decoupled and testable
• Problem Solver: Highly analytical with a strong focus on detail and quality
• Collaborator: A team-first peer who thrives on open communication and cross-layer collaboration
• Design Patterns: A deep understanding of SOLID principles and a proven track record of writing Clean Code
• Building and structuring web applications with .Net
• Designing, optimizing, and maintaining robust enterprise APIs using .NET Web API
• Fast Learner: You don't mind stepping out of your .NET comfort zone to touch a React component or a Go microservice
• Strong relational database design, complex querying, and performance tuning in SQL Server
• We 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 apply
• Experience building user interfaces with React JS, JavaScript, and HTML, accompanied by testing tools like Jest or React Testing Library
• Experience with GraphQL
• Exposure to, or curiosity about environments like Node.js, GoLang, or Java / Spring Boot, and building APIs
• Working knowledge or conceptual familiarity with MongoDB or NoSQL Databases
• Familiarity with NUnit for automated testing
• Familiarity with secure authentication via OAuth and <ASP.NET> Identity