Fin
Senior Backend Software Engineer
$125K–$250K
New York, NY +1 · Senior · Full-time · Posted Dec 3, 2025
- Location
- New York, NY
Remote
About the job
Designs and operates backend systems for global payments, including integrations with financial partners and the cloud infrastructure that supports reliable, scalable transactions.
What you'll do
- Build and maintain payment and account services, owning systems from data models and APIs through deployment and operations.
- Integrate with payment processors, banks, on/off ramps, and compliance and identity providers; monitor and scale services.
- Guide backend architecture and engineering practices, and mentor teammates.
What they ask for
- Deep experience with TypeScript and Node.js.
- Strong experience designing and building scalable distributed backend systems.
- Track record owning critical backend infrastructure and making architectural decisions.
- Deep familiarity with cloud infrastructure, containerization, and infrastructure as code.
Nice to have
- Experience at early-stage startups owning substantial backend systems.
- Experience with payments, fintech, cryptocurrency, stablecoins, or settlement systems.
Pay
$125K – $250K (base salary)
Tools
TypeScript, Node.js, Rust, AWS, Terraform, Kubernetes, Temporal
Model-written summary · the original posting is authoritative