Numeral
Software Engineer, Platform
$180K–$300K
San Francisco (HQ) +2 · Hybrid · Full-time · Posted Oct 6, 2026
- Location
- San Francisco (HQ)
New York
United States - Experience
- 5+ years building and operating backend software or platform systems in production.
About the job
Build and operate Numeral’s platform services, infrastructure, public API, MCP server, and financial-system integrations to support reliable, scalable tax automation.
What you'll do
- Build and evolve the public API, MCP server, and integrations with billing platforms and ERPs.
- Improve infrastructure, reliability, observability, performance, and deployment workflows.
- Own projects from design through production and ongoing operation, partnering with product and engineering teams.
What they ask for
- Backend or platform software experience in production.
- Backend engineering skills with Node.js, PostgreSQL, and Redis, or comparable technologies.
- Experience building APIs, integrations, or data pipelines; practical cloud and containerized-workload experience.
- Understanding of distributed systems fundamentals and experience using logs, metrics, and tracing to debug production issues.
Nice to have
- Experience with payments, tax, accounting, or other accurate and auditable financial-data systems.
- Experience with billing or ERP integrations, public APIs, developer tooling, MCP servers, or platform infrastructure.
Pay
$180K – $300K USD base salary
Tools
Node.js, PostgreSQL, Redis, AWS, ECS, Kubernetes, Terraform, CI/CD
AI focus
Build and evolve an MCP server so customers, developers, and AI tools can work with Numeral.
Model-written summary · the original posting is authoritative