Sr. Mobile Engineer

Betterment; New York (NY); Hybrid; USD 170,000 - 195,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

Life and AD&D insurance

Disability (short/long-term)

Infertility support

EAP for employees

Transit benefits

FSA/HSA options

Equity for employees

Flexible PTO

Four‑week sabbatical after six years

Company-paid coaching

401(k) match

Job summary

Betterment is seeking a Senior Mobile Engineer to own the critical first impressions of our mobile experience. You'll build and maintain high‑quality features in JavaScript/TypeScript, React Native, and collaborate with iOS/Android teams to deliver delightful, scalable apps.

Based in NYC with a hybrid schedule, you’ll lead medium‑to‑large initiatives, mentor teammates, and help shape architecture while ensuring performance and security across our consumer app.

Qualifications

• Experience building mobile apps with JavaScript/TypeScript and React Native.
• Familiarity with iOS and Android platforms; Flutter is a plus.
• Strong knowledge of architecture, scalability, and performance.
• Proven track record leading projects and mentoring teammates.

Responsibilities

• Lead medium‑to‑large scale initiatives and ship high‑quality software.
• Collaborate with Product & Design to craft delightful experiences.
• Work with Fullstack engineers to scale features securely and efficiently.
• Mentor junior engineers and share knowledge across the team.
• Maintain clean code, rigorous testing, and pragmatic solutions.

Skills

JavaScript/TypeScript

React Native

iOS/Android awareness

Flutter (nice to have)

GraphQL experience

Software architecture

Performance optimization

Leadership & mentoring

Collaborative teamwork

Job description

About Betterment

Betterment is a leading, technology-driven financial services company that offers investing, savings 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 our mission to empower people to build wealth with confidence and ease. We're headquartered in NYC and offer hybrid NY‑based positions (four days per week in‑office, with no required office days during the summer and winter holidays).

About the Role

The Product Engineering teams at Betterment build the applications our customers rely on — from their very first interaction with our platform to every experience once they’re logged in. We’re looking for a Senior Mobile Engineer to join us in furthering our mission to make people’s lives better through the delightful, intuitive experiences that have defined Betterment since day one. In this role, you’ll own the critical first impression new customers have of Betterment. You’ll be responsible for building and maintaining the high‑quality features our customers engage with every day and for raising the bar on what great mobile experiences look like.

Our mobile application guides customers through the most important life events in their financial journey. Whether it’s saving to buy a house or planning for retirement, hundreds of thousands of people rely on us to invest and save their money. If you are passionate about financial wellness and are driven to solve complex problems that make saving and investing simple, this role is for you.

Mobile Engineers sit side‑by‑side with Full‑Stack Engineers, user experience designers, and product managers to craft our consumer‑facing applications. Part of being a member of this team is a love for building products you’re proud to share with your friends and family. Our goal is to delight our customers whenever possible with sleek design, simple user experience, and access to sophisticated advice. You’ll be part of a team that’s tackling difficult questions of scale, architecture, and interaction.

This role is based out of our NYC office.

• New York City: $170,000 - $195,000

This job may also be eligible for variable compensation in the form of a company incentive bonus.

A Day in the Life

• Lead medium‑to‑large scale initiatives, partnering with teammates and adhering to software development best practices in order to ship high‑quality software continuously and iteratively.
• Collaborate with our Product & Design teams to develop delightful experiences that guide our customers on their saving and investing journey.
• Work alongside Fullstack Engineers to help ensure our features and application grow with our business while remaining performant and secure.
• Teach and Learn. As a Senior Engineer we expect you to share your knowledge with new and junior engineers, help mentor and grow our team professionally, as well as learn from our leaders to level up your own talents.
• Create efficiency. Our software helps customers save time and money. We maintain it through clean code, rigorous testing, and pragmatic programming.
• Collaborate, with purpose. You’ll work in small groups with other talented thinkers and figure out how to make Betterment’s application even better.
• Contribute to an environment of open communication, where engineers feel empowered to share ideas and take initiative to solve problems that contribute to achieving company objectives.
• Work with people who care. Half of our team is made up of engineers, but we believe everyone at Betterment is an engineer with their own tools. We’re a group of talented professionals who pride ourselves in what we do. We’re smart, innovative, energetic, and lots of fun.

What We’re Looking For

• Experience building applications in JavaScript/TypeScript and React Native development and familiarity with the underlying iOS and Android platforms. Experience with Flutter is nice to have!
• Additional experience with GraphQL is a plus.
• Strong understanding of software architecture, scalability, and performance considerations in mobile apps.
• Ensure high standards for code quality, test coverage, accessibility, and performance.
• Strong track record leading projects, driving adoption of platform improvements, and making pragmatic tradeoffs while maintaining quality.
• Collaborative mindset and excitement to partner with teammates across multiple teams within 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.

Core Values

We change lives. Be a part of a community of innovators working to transform financial outcomes for real people. Your work will make an impact, always laddering up to our mission; to empower people to build wealth with confidence and ease.

We set audacious goals. We set them for the company, our customers, and ourselves, and we won’t stop until we reach them. We don’t just show up; we give our all, then celebrate our wins.

We value all perspectives. When we collaborate, we’re at our best. We believe diverse perspectives lead to better outcomes and strive to uphold our supportive and inclusive community.

We simplify financial services. We’re financial services pioneers, always finding new ways to improve, optimize, and enhance. Constant improvement is in our DNA.

Benefits

• We offer a competitive suite of benefits, including medical, dental, and vision coverage; life and AD&D insurance; short‑ and long‑term disability; infertility support and WPATH‑aligned transgender health benefits; an Employee Assistance Program (EAP); transit benefits and FSA and HSA options.
• Ownership: Equity for all employees, including new hire and refresher grants.
• Time: Flexible paid time off, paid parental leave, and a fully paid four‑week sabbatical in your sixth year.
• Growth: Company‑paid professional coaching for all employees.
• Wealth: Day‑one 401(k) match plus matching on qualified student loan payments.

Equal Opportunity Statement

We’re an equal‑opportunity employer and comply with all applicable federal, state, and local fair employment practices laws. We strictly prohibit and do not tolerate discrimination against employees, applicants, or any other covered persons because of race, color, religion, creed, national origin or ancestry, ethnicity, sex, gender (including gender nonconformity and status as a transgender or transsexual individual), sexual orientation, marital status, age, physical or mental disability, citizenship, past, current or prospective service in the uniformed services, predisposing genetic characteristic, domestic violence victim status, arrest records, or any other characteristic protected under applicable federal, state or local law.