Senior Software Engineer

Why This Role Exists

We’re hiring a Senior Engineer to help build the core foundation of pmtbox. This is a full-stack role within a flat engineering team where you will work directly on payments, integrations, risk systems, infrastructure, and databases.

You’ll own a spoke end to end — from design to build to launch. This requires a birds-eye understanding of our unified payment architecture, paired with the willingness to get into the weeds and ship real product. We are not hiring a manager. We are hiring a builder.

What You’ll Work On

• End-to-end ownership of a spoke in our hub-and-spoke architecture.
• Full-stack development across backend, frontend, data, infrastructure, and integrations.
• Contributing to the evolution of our unified payments layer.
• Building merchant-facing tools, payment routing logic, fintech plumbing, and risk-adjacent systems.
• Working closely with founders and engineering to shape architecture and product direction.
• Shipping thoughtful, reliable code that moves the business forward.

What You’ll Bring

• Senior-level engineering experience (no specific year count required).
• Experience in fintech/payments or from the merchant side — ideally someone who has lived the pain points we’re solving.
• Comfort in early-stage environments and the fast pace that comes with them.
• Curiosity and willingness to learn our stack:
• • Ruby on Rails (experience not required — curiosity and willingness to learn is)
  • JavaScript
  • Google Cloud
  • Postgres
• Ability to think in systems and understand how your work fits into the larger architecture.
• A bias for action, ownership, and solving real problems without layers or bureaucracy.

Nice to Have

• Experience with payment routing, card acquiring, underwriting/risk tools, or financial operations systems.
• Experience with multi-tenant systems, real-time workflows, or complex integrations.
• Familiarity with cloud infrastructure, distributed systems, or observability.

How We Work

pmtbox functions primarily in-office in Orem, UT. We value focus, clarity, and collaboration — and our in-office rhythm supports that. That said, for exceptional engineers, we’re open to evaluating remote applications.

Compensation & Benefits     

• Compensation is in line with senior-level experience
• $2,000 in Monthly QSEHRA reimbursement toward health insurance
• Safe Harbor 401(k) with 100% match up to 6%
• In-office snacks and drinks
• Bi-Weekly Friday team lunch with leadership
• High-trust, high-ownership environment