Senior Software Engineer II (C#/.NET)- Payments

Versapay

1d • Remote

About The Position

Versapay turns accounts receivable (AR) into a competitive advantage by automating the process, removing friction, unlocking working capital, and accelerating momentum. The company's solutions connect finance teams, customers, and business systems in one ecosystem to ensure cash flow clarity. With over 10,000 customers and 5M+ companies transacting on the platform, Versapay processes over 110M transactions and $257B annually. Product development is organized around pods, each responsible for a collection of products and features, with others focusing on architecture, integrations, and scalability. This role involves hands-on design and development of high-quality software with a smart, collaborative team.

Requirements

• 5+ years of professional software development experience
• Proficiency in C# and a deep understanding of the .NET platform, data structures, and algorithms
• Experience with Microsoft SQL Server and Postgres, including schema design and transactional systems
• Experience building and supporting backend services, APIs, and data‑driven applications
• Strong understanding of software engineering fundamentals: software architecture design, object‑oriented design, SOLID principles, design patterns, testing, and maintainable architecture
• English proficiency for daily communication within international teams

Nice To Haves

• Experience in the payments industry
• Exposure to cloud platforms (AWS)
• Experience with distributed systems, background processing, or service‑to‑service communication
• Familiarity with observability tools (logging, metrics, tracing)

Responsibilities

• Design, develop and implement business logic for Versapay’s core payment gateway and related services using C#, .NET 4.8 and modern .NET Core frameworks
• Develop new features, maintain and enhance functionality across different product modules
• Implement new features, improve existing functionality, and fix defects in the payment gateway and related applications
• Write clean, well‑structured, well‑tested code with a strong focus on long‑term maintainability
• Work closely with Product, Design, and other Engineering teams to translate business requirements into technical solutions
• Contribute to technical design discussions and help evolve system architecture in collaboration with Senior and Principal Engineers
• Identify and reduce technical debt while balancing near‑term delivery with long‑term goals
• Support modernization efforts, including the evolution of legacy components toward more modular, service‑oriented designs
• Ensure appropriate levels of performance, scalability, resiliency, logging, monitoring, and security
• Continuously improve CI/CD pipelines, testing strategies, and operational readiness

Benefits

• We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 101-250 employees