Sr. Software Engineer

About Betterment

Betterment is a leading, technology-driven financial services company offering investing and retirement solutions for retail investors and investment advisors, as well as financial wellness solutions, including a 401(k) for small and medium-sized businesses. Our team is passionate about empowering people to build wealth with confidence and ease. We are headquartered in NYC and offer hybrid NY-based (four days / week in-office) and select, non-NYC remote positions.

About The Role

The AI Platform team enables product teams across Betterment to build useful AI-powered features quickly, enjoyably, and responsibly. As Sr Software Engineer, you will work with a team of senior/staff engineers delivering an expanding set of AI capabilities as well as shared infrastructure, LLM evaluation frameworks, and internal libraries. You will help build core pieces of our AI product development strategy, working closely with engineering leadership. You will collaborate with product and compliance partners to ensure Betterment's AI capabilities are developed with the rigor that our customers and regulators expect. By joining us in the early days of our AI product efforts, you will have significant influence over how the organization delivers exciting features into the Betterment product across all lines of business. This role is based out of our NYC office.

What We’re Looking For

• A contributor capable of establishing the strategic vision for Betterment’s AI systems while also working hands-on alongside senior and staff IC colleagues to build it into reality.
• Experience with LLM systems, including prompt engineering, agentic workflows, and evaluation systems.
• Experience operating AI features in production, ensuring quality and auditability via online and offline validation, automated monitoring, and human-in-the-loop oversight.
• Comfort operating at the frontier. The ability and drive to stay current with emerging tools, techniques, and best practices within the rapidly evolving AI ecosystem.
• Fullstack development experience including React, GraphQL, and one or more server-side languages (Ruby, Java, TypeScript, C#, Python, etc.).
• Experience collaborating across discipline and team boundaries.
• An open-minded approach when navigating the tension between moving fast, customer quality, and regulatory requirements.