Senior Software Engineer- Money Engineering, City Storage Systems - New York

City Storage Systems • New York, NY

63d

About The Position

At CSS, we're building the definitive operating system for restaurants. The Money team is the financial engine at the core of our platform, responsible for ensuring that every dollar is processed, moved, and accounted for with impeccable accuracy and reliability. We build the critical infrastructure that allows restaurants to process payments, get paid and grow their business. We are looking for a seasoned Senior Software Engineer to help us design and build the next generation of our financial products. You will tackle complex challenges in payments, money movement, fraud prevention, and financial automation.

Requirements

• Proficiency in backend programming languages like Java or Go.
• Familiarity with relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB, Redis).
• Experience with cloud platforms like AWS, Google Cloud, or Azure.
• Understanding of RESTful APIs, microservices, and distributed systems.
• Strong debugging and problem-solving skills.

Nice To Haves

• 5+ years of professional software engineering experience, with significant time spent in payments, billing, or financial technology.
• Deep understanding of the payment processing lifecycle, including authorization, capture, settlement, and reconciliation.
• Direct experience with payment gateways (e.g., Stripe, Adyen, PayPal).
• Demonstrated experience in architecting and operating large-scale, fault-tolerant distributed systems that handle financial data.
• Knowledge of fraud detection techniques and experience building or integrating with risk management systems.

Responsibilities

• Architect and implement highly available, fault-tolerant backend systems and APIs for payment processing, money movement, fraud, and financial reconciliation.
• Collaborate closely with product managers, business stakeholders and other engineers to design and deliver business goals.
• Drive technical excellence through rigorous code reviews, automated testing, and clear documentation.
• Mentor other engineers and lead complex technical projects, contributing to the team's long-term vision and strategy.

Benefits

• Collaborative environment with a talented and diverse team.
• Opportunities for advancement across engineering tracks.
• Contribute to products and systems used by millions worldwide.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior