Staff Software Engineer

Summary

Join One's banking team as a Software Engineer and build the products and systems that serve our customers. You will architect, design, and implement software applications for banking products, ensuring scalability, performance, and reliability. The role requires 6+ years of experience in a high-scale banking or fintech organization, knowledge of banking protocols and security standards, and a deep understanding of event-driven architecture and microservices. You will be responsible for building and maintaining documentation and solving complex problems at scale. One offers a collaborative and supportive environment with opportunities for professional growth and development. We value quality across code, communication, and culture.

Requirements

• Experience working in a high-scale banking or fintech organization
• 6+ years professional experience building, shipping — and growing customer-facing products
• Knowledge of banking protocols, API’s, and security standards
• Deep understanding of event-driven architecture and microservices
• Solid understanding of banking systems, financial transactions, and payment processing
• Experience leading, mentoring, and demonstrating excellence in execution
• Passion for your craft and care for the people you work with
• A desire to keep growing your skills, and an ability to learn quickly

Responsibilities

• Architect, design, and implement software applications for banking products, ensuring scalability, performance, and reliability
• Build and maintain documentation
• Solve complex problems that arise at scale

Preferred Qualifications

Familiarity with functional programming concepts