Software Engineer (API + Infra)

About Numeral

The AI-native sales tax solution.

The role

## **About Numeral:*** Numeral is transforming how taxes get done. Digital businesses are currently bogged down by a painful web of regulations across 47 states and 50+ countries. We’re eliminating this burden so teams can focus on their core mission.* We’re the largest and fastest growing AI-native tax solution. Started in 2023, Numeral has raised over $57M from Benchmark, Mayfield, Y-Combinator, and many others. We now serve over 2,500 paying customers and have more than tripled our revenue every year in our history.* We’re primarily hiring in our SF and NY offices, but do hire remotely in some cases## **About the role:**We’re looking for a **senior Software Engineer (Infrastructure)** who thrives on solving complex distributed systems problems at scale. You’ll design and build **core infrastructure** , improve **service reliability and observability** , and ensure the platform’s scalability as we handle increasing transaction volumes and integrations.This is a high-leverage, foundational role: your work will **define the architecture** and **technical direction** of our infrastructure platform while directly impacting our customers’ experience and the company’s trajectory.## **What you’ll do:*** Design and build **highly scalable, secure, and reliable infrastructure** to support critical APIs, services, and data pipelines.* Lead **infrastructure architecture decisions** for performance, observability, and fault tolerance.* Drive improvements in **system reliability, monitoring, and incident response**.* Collaborate closely with product, platform, and data engineering teams to **enable rapid feature development** without compromising stability.* Automate infrastructure management through **infrastructure-as-code** , CI/CD pipelines, and container orchestration.* Champion **best practices** in operational excellence, disaster recovery, and distributed systems design.## **What you’ll bring:*** 5+ years of experience building and scaling backend or infrastructure systems in high-growth environments.* Proficiency in Node.js, PostgreSQL, Redis, and AWS (or equivalent cloud platforms).* Experience managing containerized workloads using tools like Kubernetes, ECS, or similar.* Expertise in observability tooling (e.g., Datadog, Prometheus, OpenTelemetry) and monitoring pipelines.* Proven ability to design fault-tolerant, distributed systems at scale.* Strong debugging and performance optimization skills across the stack.* Exceptional collaboration and communication skills, with experience partnering cross-functionally.* Startup mindset: Not scared of ambiguity and hungry for rapid growth* Intensity & Ownership: This is not a 9-5 — we’re scaling rapidly and have a massive opportunity ahead of us.* Customer Obsession: You deeply care about the user experience and solving their problems## **Even better:*** Experience in payments, tax, accounting, or regulatory tech.* Infrastructure or platform engineering background (e.g., CI/CD, observability).* Experience scaling monolith-to-service architectures or event-driven systems.* Familiarity with GraphQL, Kafka, Terraform, or container orchestration tools.## **What we offer:*** Competitive salary and equity - you’ll share directly in the company’s success* Full medical, dental, and vision coverage* Wellness perks like Headspace and the Peloton One App* 401(k) to help you build long-term financial security* Lunch and snacks when you’re in the office* Regular team offsites and company events as we grow* A culture built on ownership - your work matters and people will see it!

Skills

• Amazon Web Services (AWS)
• Node.js
• PostgreSQL
• Python
• Redis
• TypeScript
• DynamoDB