--- title: 'Software Engineer (Infra) at Numeral' canonical: 'https://feeny.ai/job/software-engineer-infra-numeral-hq-san-francisco-ca-xy7v55fc7wcz' type: 'job' last_seen: '2026-09-09' --- # Software Engineer (Infra) at Numeral - **Company:** Numeral - **Location:** HQ / San Francisco, CA - **Compensation:** $180k–$300k - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2025-09-09 - **Last confirmed live:** 2026-09-09 - **Apply:** https://jobs.ashbyhq.com/Numeral/85397912-3c70-4384-bd24-34c3f4dc2cbf/application **Skills:** Node.js, PostgreSQL, Redis, AWS, Kubernetes, ECS, Datadog, Prometheus, OpenTelemetry, Infrastructure-as-Code, CI/CD, Container Orchestration, Payments domain knowledge, Tax domain knowledge, Regulatory tech domain knowledge, GraphQL, Kafka, Terraform > Design and build core infrastructure, improve service reliability and observability, and ensure platform scalability. The role involves defining infrastructure architecture, automating management via infrastructure-as-code, and collaborating with cross-functional teams to support rapid feature development. ## Job description ## 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 70+ 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 3,000 paying customers and have more than tripled our revenue every year in our history. ## ABOUT THE ROLE: We’re looking for a foundational 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: - 7+ 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! ## About Numeral ## Company Overview - **One-liner**: Numeral is an AI-native, end-to-end sales tax compliance platform that automates registration, filing, calculation, and remittance for e-commerce and SaaS businesses. - **Entity Type**: Private (Series B) - **Headquarters**: San Francisco, California, United States - **Founded**: 2022 - **Founders**: Sam Ross and Matt DuVall ## Core Business - **Primary industry**: Financial Services – Sales Tax Compliance / Fintech - **Target customers**: B2B – e-commerce brands, SaaS companies, and any business with multi-state or international sales tax obligations. - **Mission / purpose**: To make sales tax compliance fast, easy, and worry-free so businesses can focus on growth. ## Products & Services - **Numeral Platform**: End-to-end sales tax compliance – automated registration (nexus monitoring), calculation and collection via API, filing, and remittance with white-glove support. - **Global VAT Support**: Coverage for 80+ countries and tens of thousands of jurisdictions. - **Virtual Mailboxes**: Scanning, reading, and responding to physical tax correspondence from state and local governments. - **Exemption Certificate Management**: Verification and storage of exemption certificates to protect during audits. - **Reporting & Dashboards**: Detailed filing history and compliance analytics. ## Market Standing - **Valuation / Market Cap**: Not publicly available (latest round: Series B in October 2025). - **Key Metric**: Total funding of **$57.5M** (Pre-Seed $500K, Seed $4M, Series A $18M, Series B $35M). - **Notable Investors / Partners**: Benchmark, Mayfield Fund, Uncork Capital, Y Combinator. - **Growth Signals**: - Employee headcount of **107** (181.6% YoY growth) – [LinkedIn](https://www.linkedin.com/company/numeralhq). - Trusted by **3,000+ businesses** including Ridge, Eight Sleep, Grüns, and Manus – [numeral.com](https://www.numeral.com/). - Expanding internationally with team members in 7 countries (El Salvador, Brazil, Japan, Spain, South Africa, Mexico, United States). - 39 active job postings (monthly posting growth of +30%). ## Competitive Advantages - **AI-native platform**: Leverages artificial intelligence for accuracy and scale across thousands of tax jurisdictions. - **Filing guarantee**: Numeral guarantees on-time filings and pays penalties & interest if they miss a deadline. - **End-to-end coverage**: Registration, calculation, filing, remittance, and virtual mailbox in a single solution. - **Deep integrations**: Connects with billing platforms and custom checkouts via the Numeral Tax API. - **Founder pedigree**: Co-founders scaled 9-figure businesses and led engineering teams at Stripe, Notion, and Box – [Y Combinator](https://www.ycombinator.com/companies/numeral). ## Strategic Focus - **AI-driven automation**: Continuing to build intelligent workflows that reduce manual tax work. - **Global expansion**: Expanding international VAT coverage and supporting cross-border compliance. - **Customer growth**: Scaling the customer base beyond early adopters to serve mid-market and enterprise companies. - **Talent acquisition**: Aggressively hiring across engineering, sales, customer success, and tax operations – [careers](https://www.numeral.com/careers). ## Why Work Here - **Culture**: "Scrappy, gets stuff done, moves the ball forward" – built by former operators and engineers from Stripe, Notion, and Airbnb. - **Work policy**: Hybrid – HQ in San Francisco with remote options within the US (as noted on Y Combinator jobs). - **Benefits**: Competitive salary, meaningful equity (stock options), comprehensive health/wellness perks, top-of-the-line equipment. - **Growth potential**: One of the fastest-growing Y Combinator companies; employees get to shape a platform in a massive, underserved market. - **Team**: Small but rapidly growing (107 employees) with a flat structure and direct access to founders. ## Sources 1. [numeral.com/about](https://www.numeral.com/about) 2. [numeral.com](https://www.numeral.com/) 3. [numeral.com/careers](https://www.numeral.com/careers) 4. [linkedin.com/company/numeralhq](https://www.linkedin.com/company/numeralhq) 5. [ycombinator.com/companies/numeral](https://www.ycombinator.com/companies/numeral) ## Other roles at Numeral - [Account Executive - Commercial](https://feeny.ai/job/account-executive-commercial-numeral-hq-san-francisco-ca-xq7mz439h3bd) — HQ / San Francisco, CA - [Director of Strategic Solutions](https://feeny.ai/job/director-of-strategic-solutions-numeral-united-states-qw2htvb7acv1) — United States - [Senior Partner Manager, Accounting](https://feeny.ai/job/senior-partner-manager-accounting-numeral-united-states-zkqv4wrp07hy) — United States - [Partner Manager, Accounting](https://feeny.ai/job/partner-manager-accounting-numeral-united-states-bfxzgmbr8cbr) — United States - [Head of Strategic Finance](https://feeny.ai/job/head-of-strategic-finance-numeral-new-york-0q9r62bdygm9) — New York, NY - [Accounting Manager](https://feeny.ai/job/accounting-manager-numeral-hq-san-francisco-ca-7xm0jrh9s6y9) — HQ / San Francisco, CA - [Partner Manager - ERP & Billing Channels Growth](https://feeny.ai/job/partner-manager-erp-billing-channels-growth-numeral-hq-san-francisco-ca-m43arxy4nfkn) — HQ / San Francisco, CA - [Onboarding Manager (Hybrid)](https://feeny.ai/job/onboarding-manager-hybrid-numeral-hq-san-francisco-ca-794vsza6mvmg) — HQ / San Francisco, CA - [Strategic Finance Manager](https://feeny.ai/job/strategic-finance-manager-numeral-new-york-9y9qvd99ztyw) — New York, NY - [Marketing Operations Manager](https://feeny.ai/job/marketing-operations-manager-numeral-hq-san-francisco-ca-rs43y3m9xe28) — HQ / San Francisco, CA