R / 002Product EngineeringPresidio, San Francisco
Founding Engineer
As our Founding Engineer, you will define, build, and maintain the technical foundation of our platform. You will join us in-person in a fast-paced, high-ownership environment where you will take ownership of everything, from architecture and implementation to production reliability for mission-critical services.
01
What you'll do
- Full Stack & End-to-End – Design, implement, and operate complete services and user-facing features, from requirements gathering through production support
- System Design & Architecture – Develop highly available, event-driven systems for ledgering, compliance, and risk that scale with transaction volume while maintaining zero downtime
- Implementation Engineering – Embed with customers, collect feedback, and iterate rapidly to ensure our roadmap aligns with user needs
- Technical Decision-Making – Balance speed and long-term scalability, selecting appropriate technologies (Next.js/TypeScript, C#, Go, Python, modern cloud infrastructure) for each problem domain
02
Who you are
- 2–5+ years of professional software engineering, including the delivery of 0-to-1 products and scaling them in production
- Proficiency in at least two of: Next.js/TypeScript, C#, Go, Python
- Hands-on expertise with asynchronous and event-driven architectures
- Full-stack ownership spanning modern front-end frameworks, back-end services, and cloud infrastructure
- Excellent written and verbal communication; ability to influence internal and external cross-functional stakeholders
- Proven expertise with AI-assisted development tools—especially Cursor or windsurf, to accelerate code generation, refactoring, and automated test creation
03
What we offer
- Practical experience deploying lightweight machine-learning models for real-time anomaly detection, automated compliance reporting, or incident triage in production systems
- Experience designing and contributing to fintech, payments, or ledgering systems (e.g., double-entry ledgers, payments, clearing, or settlement)
- Experience integrating banking, payments, or compliance providers, or a demonstrated ability to onboard unfamiliar financial APIs quickly
- Prior leadership or mentorship in a high-growth engineering team
Join our infinite game.
We move fast — typically within 48 hours of your final conversation.