Software Engineer

What We Do

We’re building in one of the largest software markets in the world, with the momentum to match. Rillet has raised more than $200M, is valued at $1B, and is backed by Sequoia, a16z, ICONIQ, Bain Capital Ventures, Oak HC/FT, and other leading investors. We’re using that backing to build the financial infrastructure for the next generation of companies and help every business run its numbers at the speed of AI.

Who We Need

Experienced software engineers who drive real business impact — whether that's owning a product capability, leading a technical system, or shaping engineering strategy across teams. You've scaled through high-growth, you partner well cross-functionally, and you care about how a team builds, not just what ships.

We're building industry-defining accounting and finance software. We want engineers who bring a point of view to the work.

Our Tech Stack: Svelte 5/TypeScript frontend, Kotlin + Spring Boot backend, PostgreSQL, AWS. We're AI-native — meaning thoughtful application, not outsourced thinking. Our engineers still reason from first principles; AI helps with execution.

We’re looking for teammates who are based near our New York City or San Francisco offices, or open to relocating. Our hybrid schedule brings the team together in person on Tuesdays and Thursdays, plus one additional flexible day each week. Some roles may spend more time in the office depending on the needs of the team.

What You'll Do

• Own features and systems end-to-end across the full stack, from backend architecture to the interfaces users interact with every day
• Partner with product, design, and finance experts to shape what we build — advocating for the right technical tradeoffs and keeping the customer perspective central
• Raise the bar for engineering quality: continuous delivery, test-driven development, production reliability, and a culture of ownership
• Grow the team around you through code reviews, mentorship, and hands-on collaboration

Who We're Looking For

• 5+ years of software engineering experience, with a track record on complex, large-scale projects
• Strong backend fundamentals and willingness to jump into frontend when needed
• Comfortable making technical decisions and navigating hard tradeoffs at whatever scope your role demands
• Strong product instincts — you think about user impact, not just technical correctness
• Energized by building in a fast-moving environment where the playbook is still being written

Bonus Points

• Experience in fintech, ERP, or accounting software
• Hands-on experience with Kotlin, Java, or TypeScript,
• Familiarity with enterprise readiness (SOC 2, SSO/SAML, audit logging, or similar)

The expected base salary range for this role is $170,000–$350,000 in New York City and San Francisco. Final compensation within this range will depend on factors including skills, experience, qualifications, and the scope of the role. This role is also eligible for equity and benefits.

Life at Rillet

• Grow with us. Take meaningful ownership, expand your scope, and make an impact as Rillet scales.
• Competitive pay and meaningful equity. Be rewarded for the value you help create.
• Benefits that support you. We offer competitive benefits designed to support your health, wellbeing, time away from work, family, and long-term financial goals.
• Better together. We value collaboration, connection, and spending meaningful time together as a team. We regularly create opportunities to connect through team meals, events, and company gatherings.