Solutions Engineer

Responsibilities

• Own technical discovery and demos: Run discovery to understand each prospect's billing/payment/ERP stack, then deliver tailored, credible demos that map Numeral's value to their architecture and prove it works in their environment.
• Architect the integration plan: Translate customer data architecture into a clear Numeral integration plan — system diagrams, data-flow mapping, effort estimates, and success criteria — across pre-built integrations, APIs, and manual workflows.
• Own technical scoping and the handoff to onboarding: Build and quality-gate Technical Mutual Action Plans (TMAPs) and serve as the technical sign-off for complex deals (Stripe, custom API, NetSuite, and other non-Shopify tax engine implementations) before they're committed.
• Win the technical evaluation: Handle technical objections live, drive RFPs and security reviews, and run light proofs-of-concept and pilots that move deals forward.
• Be the voice of the customer: Gather technical requirements and friction points from the field and partner with Product and Engineering to influence the roadmap, prioritize integrations, and unblock deals.
• Enable the broader GTM team: Deliver training to AEs and SDRs on nexus, integrations, and new product capabilities; run office hours; and reduce the need for Product/R&D to join customer calls.
• Build scalable assets: Create and maintain demo environments, customer-facing documentation, integration guides, and repeatable SOPs that make the whole team more effective.

Requirements

• 5+ years as a Solutions Engineer, Sales Engineer, Solutions Architect, or in a comparable customer-facing technical role, ideally selling into enterprise and mid-market.
• Hands-on technical depth with API integrations and web technologies — REST APIs, webhooks, and data flows between systems.
• Programming experience in one or more languages (Python, JavaScript, Ruby, etc.).
• The ability to speak to both engineering and finance stakeholders — translating complex technical concepts for non-technical buyers and going deep with developers in the same deal.
• Strong discovery and demo instincts — comfortable driving live technical conversations and tailoring them to the audience.
• Exceptional documentation and organizational skills, and a love of building scalable processes from scratch.
• Startup mindset: not scared of ambiguity, hungry for rapid growth, and self-sufficient enough to create a playbook rather than wait for one.
• Customer obsession: deeply care about the user experience and solving their problems.
• A genuine love of learning — can build deep expertise in new industries, products, and integrations quickly.

Nice-to-Haves

• Sales/Solutions Engineering experience or familiarity in sales tax or accounting, as well as deep product empathy and proven ability to sell into the same buyer.
• Familiarity with billing systems, ERPs, or payment services, such as NetSuite, Stripe, or QuickBooks.
• Background in Numeral’s key sales verticals (E-Commerce, SaaS, Manufacturing, Wholesale/Distribution).