Billing & Finance Operations Specialist

We're a product-first team on a mission to help grow the cybersecurity culture
We want to instill cybersecurity good practices to employees in a way that's actually effective, and entertaining enough so that employees don't feel like they're working. Think Duolingo but for cybersecurity.
We created a platform to easily rollout a cybersecurity awareness program: the platform sends chat-based 4-minutes long courses to teams. Following the courses, the other side of the platform simulates phishing attacks, to prepare employees to face hackers, but in a safe environment.
Created in 2020, Riot has raised $45m with leading investors (Y Combinator, Left Lane, Base10, Funders Club and Frst Capital) and is now protecting more than 2 millions employees in over 2,000 companies (including Intercom, Deel, and Deezer) all over the world.
Cybersecurity is everywhere. It's impacting everyone, everyday, and it's becoming the number one risk to any organization, whether it's a small business or a big firm. Yet, the cybersecurity culture in most companies is a disaster. Hackers are leveraging this by targeting the weakest link: the employees. We're on a mission to fix that.
Our Finance team is building the foundation that will support Riot as we grow to $20M+ ARR and expand into new countries. We care about accuracy, speed, systems, and building scalable processes that will support 2–3× growth without friction.
We're now hiring our first Billing & Finance Operations Specialist (Gestionnaire Facturation et Administration Financière). You'll report to our Accounting & Finance Operations Manager, who will support your growth and help you build strong, scalable finance processes.
You'll play a key role in making sure our quote-to-cash and procure-to-pay engines run smoothly: accurate billing, clean customer data, timely collections, reliable supplier management, and organized financial administration. Our customers range from Startups (Alan, Deel), Mid-market and Public Sector to Large Enterprise (EuroStoxx and CAC40 companies).
What you will do
1. Accounts Receivable & Billing (65%) - Set up and maintain SaaS subscriptions in Stripe Billing and our internal customer management tool - Issue accurate invoices, manage renewals/changes, and keep customer data clean and up to date (Stripe Billing, CRM, internal tools) - Monitor collections, follow up on overdue payments, and track cash received - Reconcile payments (Stripe + bank accounts) and resolve inconsistencies - Support month-end close with clean Accounts Receivable data
2. Procurement & Payables (25%) - Review suppliers, invoices, business card issuing, card payments, and reimbursements in our procurement tool - Ensure Purchase Orders and supplier information are complete and compliant - Categorize invoices, apply basic VAT logic, and prepare payments - Track spend and support month-end AP tasks
3. Admin & Operational Support (10%) - Keep financial and legal files organized and up to date - Assist teams with travel bookings and expenses via Navan - Document recurring processes (billing, vendors, subscriptions) to improve scalability and consistency Who you are

• 2-3+ years of experience in AR, Billing, Finance Operations, or Accounting (startup or SaaS experience is a plus)
• Comfortable with tools (we use: Stripe Billing, Payhawk, Navan, Google Suite)
• Solid understanding of invoices, VAT basics, cash collections, and vendor management
• Very strong attention to detail - you enjoy clean data and clean processes
• You're proactive, organized, and not afraid to fix inefficiencies
• You like working cross-functionally with Sales, CS, Legal, and external accountants
• You don't need to be an expert on cybersecurity, but you need to be motivated by the mission
• You have a full professional proficiency in English and native in French
• You're based in Paris or you're willing to relocate

It will be a cultural fit if

• You're a doer: not afraid to get your hands dirty and get things done
• You have high standards: expect performance to be nothing short of the best
• You are an enthusiastic at heart: exhibit passion and excitement over work

Why join us at Riot

• Join a healthy-financial company: we're financially strong and highly capital-efficient. Fundraising fuels our momentum, enabling us to scale faster and unlock new growth opportunities
• Contribute to a fast-moving environment where growth is real—our revenue grew by an impressive 2.5x in 2024
• Experience the energy of a collaborative team in our modern in the vibrant area of République in Paris

Recruitment process

• Screening Call (15 min)
• Manager Fit Interview with our VP Finance (45 min)
• Case study (1h)
• Culture Fit Interview (30 min)
• Meet Ben our Founder (30 min)

€34,000 - €38,000 a year We also provide a competitive stock package. At RIOT, we believe that diversity drives innovation and inclusion fosters belonging. We are committed to building a team that reflects a wide range of perspectives, backgrounds, and experiences. We welcome candidates from all walks of life and are dedicated to creating an environment where everyone feels valued, respected, and empowered to thrive.
Please note that this is an on-site position with up to 2 days per month of remote work. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as taking interview notes, reviewing interviews more efficiently, and facilitating recruitment operations. These tools assist our recruitment team but do not replace human judgment. Discussions are analyzed by humans, and all final hiring decisions are made by people. If you would like more information about how your data is processed, feel free to reach out to us.

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