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Senior Software Engineer

#LI-JJ1 #LI-Hybrid💼 Full-time💰 $160,000–$160,000🗓 2026-07-29

Core

Designing and implementing enterprise-grade, scalable backend software solutions for financial infrastructure.

Role type

Senior Software Engineer (Backend)

Builds

Scalable software modules, backend systems, and distributed event-driven architectures.

Domain

Fintech / Financial Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

C#, .NET, SQL, PostgreSQL, SQL Server, nHibernate, Entity Framework, Domain Driven Design, AWS, Docker, Containers, Distributed Systems, Event Driven Architecture

Preferred skills

MassTransit, NServiceBus, Idempotency, Financial industry knowledge, Crypto knowledge

Technologies

.NET 10, PostgreSQL, SQL Server, RabbitMQ, Docker, AWS, nHibernate, Entity Framework, MassTransit, NServiceBus

Responsibilities

Design and develop scalable software modules and components; Build backend systems using .NET, SQL, and cloud/container tools; Plan, triage, and prioritize work across multiple priorities.

Seniority

Senior, hands-on IC

Rewrite
## About the company Cross River builds the infrastructure behind the world's most innovative financial products. Our technology and capital solutions power payments, cards, lending, and digital asset capabilities that move money safely, instantly, and inclusively — trusted by leading fintechs, enterprises, and disruptors across the globe. Our mission is simple: to build the financial infrastructure that expands access and opportunity for all. Guided by a culture of collaboration, curiosity, and purpose, Cross River has been named one of American Banker's Best Places to Work in Fintech year after year. Whether you're designing code, solving regulatory puzzles, or developing strategy, you'll join a team where innovation and integrity drive everything we do — and where your work helps shape the future of finance. ## About the role We are seeking a highly skilled and motivated Senior Software Engineer with 8 years of hands-on experience developing robust, scalable applications. The ideal candidate brings expertise in designing and implementing enterprise-grade software solutions, with a strong foundation in object-oriented programming, SOLID principles and modern software design patterns. We're looking for someone who takes ownership of their work and thrives in a collaborative, fast-paced environment. ## Responsibilities - Design, develop, and deliver scalable software modules and components - Build backend systems using .NET 10, PostgreSQL, SQL Server, RabbitMQ, Docker and AWS - Plan, triage, and prioritize work across multiple priorities ## Qualifications - 8+ years of experience developing enterprise systems in C# - 6+ years of experience with SQL, preferably PostgreSQL or SQL Server - nHibernate / Entity Framework - Strong communication skills - Experience or understanding of Domain Driven Design - Cloud Architecture - preferably AWS - Docker / Containers - Financial industry / accounting experience or understanding is helpful, but not required - Crypto experience or understanding is helpful, but not required Experience designing and developing distributed systems and event driven architecture is preferred. Ideally with understanding or exposure to: - MassTransit or NServiceBus - RabbitMQ - Idempotency #LI-JJ1 #LI-Hybrid Salary Range: $160,000.00 - $200,000.00
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