Software Engineer (Product)

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.

We’re looking for a foundational Full-Stack Engineer who thrives in ambiguity, enjoys building complex distributed systems, and wants to define foundational architecture in a fast-growing early-stage startup. You’ll lead the design and implementation of APIs, services, and infrastructure that underpin our platform. You’ll also help drive engineering strategy, product execution, and cultural foundations alongside leadership.

• Design and build scalable, secure backend services and APIs from scratch.

• Make architectural decisions that optimize for speed, data integrity, and long-term maintainability.

• Collaborate closely with product, design, and data teams to develop performant systems that power key customer workflows.

• Own infrastructure, observability, and performance for the services you build.

• Help shape engineering best practices, code quality, and our overall backend culture.

• 7+ years of experience building backend systems in high-growth environments.

• Fluency with backend technologies like Node.js, PostgreSQL, Redis, and cloud services (AWS preferred).

• Experience designing robust APIs and distributed systems at scale.

• Strong product sensibility—able to balance performance, flexibility, and speed.

• 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

• 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.

• 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!