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're looking for a Senior GTM Systems Engineer to design and scale the systems that power Fonoa's go-to-market engine.
This is not a Salesforce Admin role. It's a systems engineering role focused on building scalable, AI-enabled revenue infrastructure.
You'll own architecture, integrations, data design, automation, and AI deployment across Sales, Marketing, Customer Success, Partnerships, and Revenue Operations.
Design and build the revenue systems architecture that underpins our GTM organisation
Create scalable, composable systems that separate data, logic, and user workflows
Eliminate unnecessary tooling, integration debt, and manual processes
Establish standards for maintainability, observability, and reliability
Deploy AI-powered workflows across lead qualification, account research, forecasting, renewals, and revenue operations
Connect models to live business data and operational systems
Build event-driven automations and internal tooling that deliver measurable efficiency gains
Own the data model across accounts, contacts, opportunities, and revenue events
Manage integrations between Salesforce, marketing platforms, data warehouses, enrichment providers, and AI tooling
Ensure data quality, governance, and operational visibility across the GTM stack
Translate GTM strategy into scalable systems and workflows
Partner with Sales, Marketing, Customer Success, Partnerships, and Finance leaders
Influence how Fonoa's revenue technology stack evolves as we scale
5+ years in GTM Engineering, Revenue Operations, Revenue Systems, or a similar technical role
Strong Salesforce experience, with expertise extending beyond administration
Experience designing and managing complex business system integrations
Proven AI deployment experience, including automations, agents, workflows, or model-driven applications
Strong data modelling and systems design skills
Ability to move between strategic planning and hands-on execution
Experience building with LLMs and AI APIs
Experience with tools such as n8n, Clay, Make, Zapier, Workato, or similar platforms
Strong opinions on data governance and system design
Experience scaling systems within a high-growth B2B SaaS company
A Salesforce Administrator role with a different title
A reporting and dashboard-focused operations role
A project management position coordinating technical work
A prompt engineering role without real implementation ownership
We're building a modern, AI-enabled operating system for tax. Internally, we're applying the same principles: modularity, automation, observability, and intelligence.
This is an opportunity to architect the revenue platform behind one of the most ambitious companies in tax technology and help define what world-class GTM engineering looks like at scale.
https://www.fonoa.com/resources/blog/fonoa-raises-funding-and-acquires-indirect-tax-edge
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Fonoa is the first global tax automation platform that allows you to validate tax IDs, calculate taxes, generate invoices and e-invoices, report transactions, and file your tax returns using a single solution.
Fonoa Vision:
- Today’s tax teams need an end-to-end solution with global VAT, GST, and Sales Tax capabilities.
- We make that a reality by only servicing the needs of multinational digital platforms, marketplaces and SaaS businesses.
- This focus means our products and roadmap are aligned with their clients needs and expectations.
By the numbers:
- Lookup Validates Tax ID’s in 110+ countries.
- It can also find Tax ID’s in over 20.
- The tax engine covers 190+ countries and US States.
- We’ve onboarded over a million platform sellers for leading marketplaces to handle the e-invoicing needs.
- We process hundreds of millions transactions every year.
- Our integration timelines are best in class - clients go live in a few weeks or even days.
Reliability by design:
Our tools are monitored and maintained by experienced professionals who are dedicated to the needs of large, digital-first companies.
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.
See why companies like Zoom, Uber, Booking, and Remote.com trust Fonoa to automate and manage their global tax obligations.
