Sr. Software Engineer

About the role

As a Sr. Engineer on the Frontend Platform team, you will be responsible for building and maintaining the shared mobile infrastructure, frameworks, and tooling that power Betterment's React web applications. You'll play a key role in shaping the developer experience for engineers across the company, ensuring that teams can deliver features quickly, safely, and sustainably.

Platform engineering at Betterment enables engineers across the organization to ship great code with confidence. Our team works closely with product engineers to deliver cross-cutting capabilities, infrastructure, and frameworks that unlock faster delivery while maintaining quality. We tackle the most interesting technical challenges of scale, architecture, and developer experience to create an app platform that delights both our customers and our engineers.

This role is based out of our NYC office. Below we've reflected the base salary range we would offer for this position. Actual salaries may vary depending on factors including but not limited to location, experience, and performance. The range listed is just one component of Betterment's total compensation package for employees.

• New York City: $170,000 - $195,000

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. For jobs based out of our NYC HQ, we require in office attendance Monday through Thursday, weekly.

A day in the life

• Build and maintain the shared JavaScript/React frameworks, libraries, and developer tooling that product teams use to deliver customer-facing features to our web apps
• Partner with engineers across product squads to improve reliability, performance, and security of our web apps
• Lead medium-to-large scale platform initiatives, balancing tradeoffs to ship high-quality solutions continuously and iteratively
• Collaborate closely with Product, Design, and fellow engineers to ensure platform capabilities align with business and customer needs
• Mentor junior engineers, contribute to an environment of open communication, and foster a culture of teaching and learning
• Identify and address strategic technical challenges that have long-term impact across Betterment's engineering organization
• Contribute to an engineering culture that values clean code, rigorous testing, pragmatic programming, and continuous improvement

What we're looking for

• Expertise with React web development and familiarity with JavaScript open source ecosystem
• Experience building and consuming GraphQL APIs (experience with Apollo Client a plus)
• Experience with modern approaches for testing web applications, including end-to-end browser testing and accessibility validation (experience with Playwright and Chromatic a plus)
• Experience with design systems, including approaches for CSS shared across an organization
• Experience with JavaScript build tooling (e.g. Vite) and monorepo tooling (e.g. pnpm, Lerna, Nx)
• Experience participating in projects that impact technologies and development workflows used by multiple teams
• Expertise in at least one server-side language (Ruby, Java, C#, C++, Python, etc.) Ruby on Rails experience a plus
• Strong understanding of software architecture, scalability, and performance considerations in web apps
• Ability to lead projects, drive adoption of platform improvements, and make pragmatic tradeoffs while maintaining quality
• Collaborative mindset and excitement to partner with teammates across engineering, design, and product
• Passion for software engineering, developer experience, and creating what doesn't yet exist
• Appreciation of agility and pragmatism in software development
• The ability to thrive in a startup-like environment, balancing autonomy with collaboration