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Senior Backend Engineer
Job Summary
Join a tight-knit team of top engineers building cutting-edge financial systems for high-growth businesses. You'll own high-volume payment processing, secure APIs, and AI-powered workflows that directly boost customer cash flow. Work closely with a founder-led team that brings real-world distribution expertise to solve complex fintech challenges.
Essential Functions
- Develop and maintain high-volume payment processing systems and secure financial APIs
- Build deep integrations with major ERP systems
- Create LLM-powered workflows for credit decisions, remittance matching, and automated communications
- Design real-time data pipelines handling millions of financial records
- Implement AR and collections automation to improve customer cash flow
- Collaborate through pair programming and contribute to end-to-end system delivery
Required Qualifications
- 4+ years of experience as a backend engineer or backend-leaning full-stack engineer
- Experience with MVC frameworks like Ruby on Rails, Django, or Java Spring
- Advanced experience with SQL databases like PostgreSQL
- Familiarity with REST APIs and ETL processes
- Proven track record shipping production systems and user-facing features end-to-end in the last 1-2 years
- Background in high-growth, VC-backed startups
Preferred Qualifications
- Experience in fintech, payments, or billing systems
- Shipped production-level agentic AI features with eval systems, A/B tests, or multi-arm bandits
- Actively uses AI tooling in day-to-day workflows
- Worked at companies with high iteration speed on new products
- AI-native approach with end-to-end system building expertise
Technical Skills
- Ruby on Rails
- Django
- Java Spring Boot
- PostgreSQL
- REST APIs
- ETL processes
- LLM-powered workflows
- Real-time data pipelines
- Payment processing systems
- Secure financial APIs
Compensation & Benefits
Competitive salary range of $150,000 - $210,000 based on experience, plus equity in a high-growth startup.