Founders Associate

What We Do

Rillet serves accounting and finance teams. Our customers are the financial brains of their companies. Our job is to help them run the numbers with impossible speed, accuracy, and insight.

Rillet is an AI-native ERP that can drive a zero-day close. We are different because of our unified source-of-truth data model, hundreds of best-in-class native integrations (Stripe, Ramp, Salesforce, etc), automated & auditable workflows, multi-entity consolidation, and quickly expanding army of specialized AI agents (e.g., accrual, audit, P&L flux, board decks, etc). These earn us a consistently perfect customer satisfaction score. High-growth AI customers like Mercer, Windsurf, and Function Health love our ship velocity, because their financial stack needs to scale as quickly as they do.

This huge market is ours to take. We have raised $100M from leading investors (including Sequoia, a16z, Iconiq, Oak HC/FT, and First Round) to help everyone run their numbers at the speed of AI.

Who We Are

Rillet’s pace is not for everyone. Intelligence is table stakes. To succeed here, you need extreme speed, agency, and flexibility.

Successful Rilleteers do not wait for assignments. They internalize a mission, design a strategy, and bring back results that are better, faster, and more creative than a manager could have asked for.

Work revolves around our customers. Successful Rilleteers are energized by delivering the most important things, even those that weren’t in the original plan.

In this role, you do not need to be an accountant. But you do need to appreciate the value that our customers can create for their own company when we equip them with the perfect financial tools. Successful Rilleteers love powering the financial core of the world’s fastest-growing companies.

Who We Need

Rillet is looking for a Founders' Associate to work directly with the CEO and Chief of Staff. You will be the connective tissue that keeps high-priority work moving — spotting roadblocks early, solving them before they escalate, and ensuring nothing falls through the cracks.

You will operate across a wide range of workstreams simultaneously, supporting the Chief of Staff with analytical horsepower on strategic projects, helping design and improve internal processes, and supporting the CEO day-to-day from drafting communications to making sure key initiatives reach completion.

You will need to be highly organized and comfortable with frequent context switching. One hour you're in a spreadsheet modeling a business case. The next you're drafting a note on behalf of the CEO. The next you're figuring out why a cross-functional project stalled and fixing it.

This is a high-output role. You will work hard, move fast, and be held to a high bar. In return, you will get unparalleled exposure, accelerated growth, and a front-row seat to building a company.

We're looking for a teammate who value in-person collaboration and is within commutable distance of our NYC or San Francisco offices (or willing to relocate). Team members are required to work in-office Tuesdays and Thursdays, plus one additional flexible in-office day.

What You'll Do

• Own Claude at Rillet – become our internal Claude expert. You will build and deploy AI automations and workflows using Claude, starting with the CEO and Chief of Staff, and rolling them out across the organization. You will be the go-to-person for Claude-related questions, best practices, and capabilities.

• Track progress on key initiatives on behalf of the CEO – proactively flagging risks, identifying roadblocks early, and ensuring the right people are unblocked and moving forward

• Prepare internal and external communications on behalf of the founders, including investor updates and board materials

• Apply analytical horsepower across all functions to generate insights that drive decisions – whether that's modeling sales efficiency in GTM, analyzing retention trends in Customer Experience, building headcount plans in HR, or stress-testing unit economics in Finance

• Run operational processes across internal ops functions

• Project-manage initiatives that span multiple stakeholders and require strong follow-through

• Serve as a connective layer across the organization — making sure decisions get made and nothing falls through the cracks

Who We're Looking For

• 1–3 years of experience in management consulting, investment banking, or a BizOps / strategy role at a high-growth startup

• Proficient with Claude, you have used it extensively and know how to get the most out of it

• A track record of delivering in fast-moving, ambiguous environments with minimal hand-holding

• Executional by nature

• Strong analytical skills: comfortable building models, interpreting data, and turning insights into action

• Exceptional written and verbal communication: you can draft a crisp investor update and a clear internal Slack message with equal ease

• Highly organized with sharp attention to detail, even when juggling multiple workstreams

• Low ego, high ownership

• Willingness to travel a few times per year for team offsites and company events

Life at Rillet:

• Competitive Pay & Benefits: Backed by world-class investors, we offer strong salaries plus equity so you share in our success. We've got you covered with top-tier health and dental insurance, premiums partially or fully covered for you, plus 90% coverage for dependents.

• Room to Grow: We're building a team of ambitious, high-performing people who will grow with the company. As Rillet scales, so will your role, responsibilities, and compensation.

• Flexibility That Works: Take the time you need with flexible PTO and 9 company-wide holidays. We value both the flexibility of remote and hybrid work and the creativity and energy that comes from in-person collaboration at our hubs in San Francisco, NYC, and Barcelona.

• Build Real Connections: Great work happens when people connect. Join us for team offsites in incredible locations, our team has bonded everywhere from New York and San Francisco to Toronto, Italy, France, and beyond.