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# Backend Engineer (All Levels)

- **Company:** CASAP CORP
- **Location:** New York, NY, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), Artificial Intelligence, Architectural Patterns, Code Reuse, Data Structures, Software Design Patterns, Fraud Prevention and Detection, Software Engineering, Systems Architecture, Lightspeed, Sofi, Backend, Microservices
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/backend-engineer-all-levels-san-francisco-ca--4da93d05-cef4-4a5d-b769-48055163e5a2

## About the Role

Artificial Intelligence (AI), Automation, Loyalty Programs, Startup, Chargebacks, Banking Services, Credit Cards, Systems Maintenance, Use Cases, Time Management, * Minimum of 6+ years of experience in software development, with at least 2 years focused on using Go or Java in production environments.

 * Demonstrated experience working on platform teams and contributing significantly to system architecture.
 * Led an end-to-end implementation of a key product feature or re-architecture/upgrading of a key platform service.
 * Excellent problem-solving skills with a strong understanding of fundamentals, algorithms, data structures, and industry design patterns.
 * Experience mentoring junior team members and leading project teams as the sole tech lead.
 * Strong communication skills and ability to work effectively in a collaborative team environment.

## Description

Help us solve fraud asap with Casap, where we're building the world's first AI-native disputes automation and fraud prevention platform. Our mission is to create a future where trust is a given and fraud is rare by empowering financial institutions to automate disputes, eliminate first-party fraud, and turn manual back-office workflows into loyalty-building moments for customers and members.
We're a Series A startup founded by product leaders from Robinhood and Chime, and we've raised over $30M from Emergence, Lightspeed, Primary Ventures, SoFi, and others. We have incredible product market fit, an exceptionally ambitious and kind culture, and our CEO, Shanthi, was recently named to Inc. Magazine's2026 Female Founders 500. Over the past 12 months we've more than 10x'ed revenue and we're just getting started., This is a hybrid role based out of our San Francisco, CA or New York, NY office. Our team works in-office time on Mondays, Wednesdays, and Fridays., * Develop and maintain reliable backend systems, integrating them with credit card, banking, and merchant platforms for comprehensive workflow chargeback management.

 * Scale and generalize the system for growth, ensuring it is highly configurable and flexible to reduce the time to go live and support a broad range of use cases.
 * Architect and develop robust architectural patterns for microservices.
 * Design and implement core frameworks and libraries for various backend services, promoting code reuse and maintainability.
 * Take ownership of upgrading coding practices, CI/CD pipelines, deployed systems, backend programming languages, and third-party dependencies to enhance system performance and security.
 * Proactively identify areas for improvement in our platform's infrastructure and systems, implementing optimizations that enhance operational efficiency and product quality.
 * Own the end-to-end development and deployment of key features, including decision-making around technology stack and system design to ensure optimal implementation.