# Sr. Software Engineer

**Company:** [Betterment](https://hotfix.jobs/companies/betterment)
**Location:** New York, NY
**Role:** Fullstack Engineering
**Salary:** $170k – $205k/yr
**Skills:** LLMs, Prompt Engineering, Agentic Workflows, Evaluation Systems, React, GraphQL, Ruby, TypeScript, Python, Java
**Posted:** 2026-04-24

> Senior Software Engineer on the AI Platform team builds shared infrastructure, LLM evaluation frameworks, and internal libraries to enable product teams to deploy AI features responsibly. Requires fullstack experience with React, GraphQL, server languages, and production AI operations expertise.

## Job Description

## A Day in the Life

- Work with a team of senior/staff engineers building the foundation that enables all Betterment teams to deploy AI features.
- Help deliver Betterment's AI platform strategy – the shared infrastructure, evaluation frameworks, internal libraries, and guardrails that allow product teams to build AI features with confidence and speed.
- Contribute to high-leverage projects that expand our organization’s AI technical capabilities, where AI organically enhances existing product value.
- Embed with product teams to ship customer-facing AI functionality to production. Develop broad Betterment domain expertise in the process.
- Collaborate with legal and compliance leaders to scale processes that enable teams to build AI functionality quickly and responsibly within a regulated financial services environment.
- Mentor junior engineers, sharing your experience to expand their impact and accelerate their growth.

## 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.
- Clear judgment about when to use AI and when not to, maintaining a grounded, pragmatic perspective on what we should ship to production today.
- **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.

## Compensation & Benefits

**New York City: $170,000 - $205,000**

We offer a competitive equity package, health, dental and vision benefits, life and AD&D, short-term and long-term disability insurance, EAP, commuter and parking benefits FSA/HSA, and 401(k) with employer match as well as a flexible PTO policy. This job may also be eligible for variable compensation in the form of a company incentive bonus.

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