Senior Software Engineer (Client)

(Y)our Mission: 
Our solutions contribute to flexible and customer-friendly payment alternatives. We offer consumers the opportunity to choose when and how they want to pay, guaranteeing a steady and predictable cashflow for merchants. Our products make us proud, but not content and we have high ambitions for our existing and upcoming products. We are strongly committed to building the future of FinTech — human-centric and sustainable. With investments to back it up.  You will be part of a new and quickly growing product & tech organization, having the opportunity to shape our new teams and build the next revolutionary products.  
 
We are looking for a 
Senior Software Engineer 
to join our team in Tallinn Tech Hub 

We build and maintain core financial services that power Riverty’ s consumer products. This includes systems for tracking customer account balances, orchestrating invoice creation and distribution, and ensuring financial data flows accurately across merchants and platforms. Whether working on transactional ledgers or customer-facing invoice flows, you’ll contribute to scalable, event-driven systems that support transparency, compliance, and a seamless user experience. 

• What will be your challenge: 
• You will join one of our product teams and daily you will:  
• Design, develop, test, and ship robust, maintainable, and readable software, applications, APIs, and other workflows 
• Initiate, participate in, and communicate technical architecture designs 
• Attend regular scrum ceremonies as a member of an agile cross-functional team 
• Analyze, discuss, and implement business requirements while maintaining good documentation of the systems and components you create 
• Bring in industry standards and best practices to continually improve our codebase and architecture 
• Make a positive impact on our engineering culture by adopting, implementing, and providing feedback on best standards and practices 

What will help you to succeed in the role:  

To thrive in this role and make a meaningful impact, we believe the following qualities and experiences will serve you well: 

• You’re a seasoned software engineer with a strong command of C# and .NET, and a track record of delivering production-grade systems. 
• You’ve built and supported cloud-native applications and understand the challenges of distributed systems. 
• You think in systems and design with focus on scalability, resilience, and long-term maintainability. 
• You’re proactive in shaping technical direction and enjoy contributing to architectural decisions. 
• You care deeply about craftsmanship and continuously seek opportunities to improve your skills and share knowledge with others. 
• You thrive in collaborative environments, value diverse perspectives, and communicate clearly in English across disciplines. 
• You’re comfortable taking ownership—from ideation to deployment—and balancing technical excellence with business impact. 
• Familiarity with FinTech or banking systems is a plus. 

About The Technologies We Use:

Our teams work with a modern and evolving tech stack centered around C# and the .NET ecosystem. We build cloud-native applications using Azure and follow microservices architecture principles. You’ll encounter: 

• RESTful APIs and distributed systems 
• Azure cloud services supporting scalable and event-driven architectures 
• Microsoft SQL Server and Entity Framework 
• Messaging platforms like RabbitMQ, MassTransit, and Kafka 
• Containerization with Docker and orchestration via Kubernetes 
• Infrastructure as Code using Terraform 
• Monitoring and observability tools such as NewRelic 

 
We value clean architecture, automation, and continuous improvement—and we’re always open to new ideas and technologies that help us build better systems.