Solution Architect

Company: Fonoa
Location: Hybrid in New York NY or San Francisco CA
Compensation: $180000 - $200000 competitive equity
Employment Type: Full-time
Visa Sponsorship: Not available (US citizens and green card holders)

Fonoa is the Tax Operating System for autonomous tax: AI that tracks every rule acts on every obligation and proves every decision. Its modules cover the full indirect tax lifecycle (tax ID validation real-time tax determination e-invoicing and returns) on one data model with one audit trail. It operates across 120 countries and is trusted by Canva Netflix Spotify Uber Zoom and .

Founded in 2018 Fonoa has about 260 people doubles ARR each year and has raised $195M including a $110M Series C.

Fonoa is hiring a Solution Architect (3-6 years) to own the technical implementation of enterprise e-invoicing and indirect tax compliance integrations. You will join a growing post-sales team and partner directly with client engineering teams to take projects from kickoff through go-live across 120 countries. This is an individual contributor role.

• Own end-to-end technical implementation of client onboarding from requirements and solution design through go-live and hypercare.
• Build and troubleshoot integrations hands-on with REST APIs JSON/XML payloads webhooks and data mappings alongside client engineers.
• Translate country-specific e-invoicing mandates and indirect tax requirements into scalable API-level designs.
• Manage technical and non-technical stakeholders running project syncs and on-site visits as needed.
• Feed structured product feedback from implementations to Product and Engineering.

• 3-6 years as a Solutions Architect with post-sales experience at a B2B SaaS or API company selling to enterprise or mid-market
• Direct hands-on work with REST APIs JSON/XML webhooks and authentication flows; able to describe building or debugging an integration in detail
• Integration experience with ERP billing or financial systems (SAP Oracle NetSuite)
• Strong client-facing stakeholder management as an individual contributor
• Bachelors degree
• Based in New York or San Francisco for hybrid in-office work

• Fintech tax tech or compliance software (e.g. Avalara Vertex Stripe Tax)
• High-growth startup or scale-up experience (Series B-D)
• Payments or accounting exposure including Big Four followed by SaaS implementation
• Indirect tax concepts (VAT GST e-invoicing mandates)
• Pre-sales partnership: demos discovery calls and deal support

Talent acquisition screen (30 min) hiring manager interview (45 min) panel presentation and meet the team (2-3 hours) founder interview (60 min).

REST APIs JSON XML webhooks ERP systems (SAP Oracle NetSuite) API authentication cloud technologies

REVENUE: 14% of first-year salary. Est. fee per hire $25K-$28K; 2 seat(s) up to $53K if all filled.

TARGET COMPANIES (suggested): Avalara Vertex Stripe Anrok Sovos Adyen.

BEST-FIT CANDIDATE: 3-6 yrs; post-sales SA at B2B SaaS/API; hands-on API integration detail (auth payloads mapping); ERP/billing integrations; visa: NO sponsorship; location: NYC or SF hybrid. Most common miss: API experience limited to pre-built connectors. Avoid 10 yrs/overqualified managers unwilling to IC job hoppers.