Senior Software Engineer, AI-Driven Trade Compliance

Pax; California (MO); On-site; USD 150,000 - 210,000; Full time

Job summary

Pax in San Francisco is seeking a senior software engineer to own critical products and systems in a high‑stakes, AI‑driven trade platform. You’ll shape architecture, APIs, data models, and end‑to‑end delivery for customers worldwide.

You’ll work with founders and enterprise customers to build backend systems, data pipelines, AI workflows, and reliable customer interfaces while balancing speed, quality, and maintainability. This role is on‑site in SF and offers meaningful ownership from day one.

Qualifications

• Proven track record shipping meaningful software at a high-growth startup or similar demanding environment.
• Led large projects from problem through architecture and launch.
• Strong backend focus with emphasis on product quality and user experience.

Responsibilities

• Own major product areas end to end from problem and technical design through implementation, launch, and iteration
• Design durable APIs, data models, workflows, and system boundaries for products operating on high‑stakes financial and regulatory data
• Build across the stack, including backend systems, data pipelines, AI‑powered workflows, and polished customer‑facing interfaces
• Turn complex regulations and messy trade data into products that feel simple and reliable
• Work directly with enterprise customers to understand their operations, identify the real problem, and ship solutions quickly
• Establish technical direction while making pragmatic decisions about speed, quality, and long‑term maintainability
• Raise the engineering bar through thoughtful design, strong execution, clear communication, and mentorship
• Help shape our engineering culture, architecture, hiring, and technical roadmap
• Build with large language models where they create real leverage and use deterministic systems where accuracy demands them

Skills

React

Next.js

FastAPI

SQLModel

PostgreSQL

Job description

Pax in San Francisco is seeking a senior software engineer to own critical products and systems in a high‑stakes, AI‑driven trade platform. You’ll shape architecture, APIs, data models, and end‑to‑end delivery for customers worldwide.

You’ll work with founders and enterprise customers to build backend systems, data pipelines, AI workflows, and reliable customer interfaces while balancing speed, quality, and maintainability. This role is on‑site in SF and offers meaningful ownership from day one.