Backend engineer building scalable AI - native cybersecurity infrastructure for Doppel. Developing software that detects and disrupts phishing, impersonation, fraud, and other digital threats.
About the role
- Senior Software Engineer designing and developing backend services for Reap’s stablecoin-enabled card platform. Collaborating with cross-functional teams on financial systems and transaction processing.
Responsibilities
- Design and build backend services for card transaction processing, fraud detection, and/or card program management
- Contribute to system architecture and technical decision-making with a focus on performance, fault tolerance, and maintainability
- Collaborate with cross-functional stakeholders (Product, Risk, Finance, Compliance) to deliver robust, compliant financial systems
- Write clean, observable, and well-tested code in a service-oriented architecture
- Participate in code reviews, incident response, and ongoing reliability improvements
- Help evolve our engineering practices, tools, and system designs as we scale
Requirements
- 6+ years of software engineering experience, ideally in fintech, infrastructure, or platform teams
- Experience building backend systems in a typed language (e.g., TypeScript, Java, Go, etc.)
- Solid grasp of distributed systems concepts: async processing, retries, observability, eventual consistency
- Strong judgment in balancing correctness, performance, and maintainability
- Ability to collaborate in cross-functional teams and communicate technical tradeoffs effectively
- Comfortable working in a fast-paced, evolving product environment
Benefits
- High-ownership, high-impact role at the frontier of stablecoin-powered finance
- Work directly with strategic partners and shape how Reap expands its financial ecosystem
- Operate with significant autonomy as Reap's technical owner of a key partnership
- Join a high-caliber team across engineering, product, and operations
- Insurance coverage after probation
- Reap Card stipend
- Use of AI tools at work — and the space to learn, experiment, and grow with them
- A culture of innovation, inclusion, and continuous learning
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