Senior Software Engineer

Rillet

Senior Software Engineer developing industry-defining accounting software for Rillet. Leading technical ownership and collaborating with product and design teams in a fast-paced environment.

Posted 5/28/2026full-timeSan Francisco • California • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

JavaKotlinTypeScript

About the role

Key responsibilities & impact

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.
Set the bar for engineering quality: continuous delivery, test-driven development, production reliability, and a culture of ownership.
Mentor engineers on the team through code reviews and hands-on collaboration, raising the technical bar across the org.

Requirements

What you’ll need

5+ years of software engineering experience with a track record of leading large-scale projects and architecting scalable systems
Backend-focused fullstack engineer with proficiency in Kotlin, Java, or other JVM languages; TypeScript experience a plus
Comfortable driving technical decisions and making hard tradeoffs under pressure
Actively incorporates AI tools into your day-to-day workflow, not just as a productivity shortcut but as a way to tackle problems differently
Strong product instincts and a habit of thinking about user impact, not just technical correctness
Energized by building in a fast-moving environment where the playbook is still being written.

Benefits

Comp & perks

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.

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Hard Skills & Tools

KotlinJavaJVM languagesTypeScriptbackend architecturefullstack engineeringtest-driven developmentcontinuous deliveryproduction reliabilityAI tools

Soft Skills

mentoringcollaborationtechnical decision-makinguser impact focusadaptabilityproblem-solvingleadershipcommunicationownershipfast-paced environment