Fonoa is the Tax Operating System for autonomous tax. AI that tracks every rule, acts on every obligation, and proves every decision, built on modular infrastructure.
Fonoa’s modules cover the full indirect tax lifecycle: tax ID validation, real-time tax determination, e-invoicing, and returns. All on one shared data model and integration, with one audit trail. Each added capability makes the others stronger.
Agents monitor obligations, populate returns, catch anomalies and assemble audit packs in seconds. The system does the work. Humans make the calls. That’s autonomous tax.
We operate across 120+ countries, with clients going live in weeks, if not days.
Trusted by Canva, Netflix, Spotify, Uber, Zoom and Booking.com.
Role description:
We are looking for a Solutions Architect to join our Post-Sales Implementation team and help our enterprise clients successfully implement Fonoa's tax technology solutions.
The role will have a strong focus on e-invoicing and digital tax compliance projects, working with clients to understand their business, technical, and regulatory requirements and translate them into scalable technical solutions. You will work across different countries and e-invoicing mandates, helping clients understand how regulatory requirements impact their existing ERP, billing, invoicing, and financial systems.
You will own the technical aspects of the client onboarding and implementation lifecycle, from requirements gathering and solution design through implementation and Go-Live.
The ideal candidate combines technical solution architecture skills with a strong understanding of e-invoicing, indirect tax, and digital tax compliance. You should be comfortable working with APIs and data structures, navigating complex business requirements, and explaining technical and regulatory concepts to both technical and non-technical stakeholders.
What you will do:
Work alongside the Solutions engineers to develop scoping and implementation plans, perform feature gap analyses, and provide tailor-made solutions where applicable.
Work closely with the product, engineering, support, and solutions teams to collect and capture client feedback to help build relevant case studies and feature requests.
Troubleshoot ongoing implementation issues that come up both on the technical aspect, considering the tax implications, and involving the relevant teams to find resolutions.
Manage implementation project timelines and deliverables, ensuring time to revenue, and go-live is optimized and minimized where possible.
Track Post-sales and post-go-live metrics and engagement to measure and ensure a successful launch.
Work with APIs, JSON/XML payloads, webhooks, authentication mechanisms, and data mappings to troubleshoot and design integrations.
Use modern AI tools and technologies to improve research, analysis, documentation, troubleshooting, and implementation efficiency, while applying appropriate judgment around accuracy, security, and data privacy.
You will be a great fit if:
You have professional experience with e-invoicing, electronic invoicing, digital tax, indirect tax technology, or related tax compliance solutions.
You have a good understanding of how e-invoicing works from both a business/regulatory and technical perspective.
You have experience working on B2B SaaS implementations, ideally involving enterprise customers, ERP integrations, finance systems, or tax technology.
You are comfortable working with APIs, JSON, XML, webhooks, cloud technologies, and system integrations.
You can translate complex business, tax, and regulatory requirements into clear technical requirements and solution designs.
You are comfortable navigating strategic conversations with technical and business stakeholders.
You have experience working with ERP, billing, invoicing, accounting, or financial systems; experience with platforms.
You have a practical understanding of AI and modern AI tools, and are comfortable using them to support research, analysis, documentation, problem-solving, and day-to-day productivity.
You have a strong sense of ownership and take responsibility for delivering high-quality outcomes for customers.
As part of the recruitment process at Fonoa, we process your personal data in accordance with our Privacy Notice for Job Applicants. This notice explains how and why your data is collected and used, and how you can contact us if you have any concerns.
Skills Required
- Professional experience with e-invoicing, electronic invoicing, digital tax, indirect tax technology, or related tax compliance solutions
- Understanding of e-invoicing from business, regulatory, and technical perspectives
- Experience with B2B SaaS implementations, ideally involving enterprise customers, ERP integrations, finance systems, or tax technology
- Comfort working with APIs, JSON, XML, webhooks, cloud technologies, and system integrations
- Ability to translate complex business, tax, and regulatory requirements into technical requirements and solution designs
- Ability to navigate strategic conversations with technical and business stakeholders
- Experience with ERP, billing, invoicing, accounting, or financial systems
- Practical understanding of AI and modern AI tools
- Strong ownership and responsibility for delivering high-quality customer outcomes
Fonoa Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Fonoa and has not been reviewed or approved by Fonoa.
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Equity Value & Accessibility — Equity is included as a core element of pay, framed as a “stake in the company,” signaling meaningful ownership access for employees. This positions total compensation beyond cash alone.
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Leave & Time Off Breadth — Generous paid time off is explicitly offered as part of the package, emphasizing the ability to rest and recharge. This contributes to a more balanced total rewards mix.
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Wellbeing & Lifestyle Benefits — Home‑office allowance, regular team connection activities, and company offsites are highlighted as ongoing lifestyle and community perks. These elements support remote work effectiveness and team cohesion.
Fonoa Insights
What We Do
Fonoa is a global tax automation and compliance solution provider that helps companies streamline the entire transactional chain. We empower digital businesses to easily handle tax compliance with solutions like tax calculations, invoicing, tax ID validations and more – all from one platform. With Fonoa, your company can: - Instantly validate tax ID numbers from 95+ countries - Report transactions in accordance with local tax law, including DAC7 - Apply the correct indirect and withholding tax treatment to each transaction - Issue custom-branded tax invoices in locally compliant languages and formats - Automatically populate tax returns ready for filing - Maintain compliance at scale See why companies like Zoom, Uber, Booking, and Remote.com trust Fonoa to automate and manage their global tax obligations.
Why Work With Us
Fonoa is redefining tax compliance infrastructure for the AI era - API-first, end-to-end, and built from the ground up while competitors patch legacy systems. With customers like Uber, NVIDIA, and Meta, product-market fit is proven. At Series C with 250 people and a growing US team, it's early enough to shape something, late enough to matter.
