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Staff Software Engineer - Backend Architecture

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Innovate with purpose

At BILL, we believe in empowering the businesses that drive our economy. By replacing outdated financial processes with innovative tools, we help businesses—from startups to established brands—make smarter decisions and gain control of their operations. And we don’t stop there: we’re creating the future of financial automation so businesses can spend more time on what matters.

Working here means you become part of a vision-driven team that’s ready to tackle challenges and build cutting-edge solutions. We value purpose, drive, and curiosity—and we thrive in a fast-paced, ever-changing environment. Whether in one of our offices in San Jose, CA, Draper, UT, or working remotely, BILLders collaborate to deliver real impact for businesses that need more time in their busy weeks.

At BILL, we listen, learn, and lead—fostering collaboration and a drive for continuous growth. We’re committed to building a diverse and inclusive workplace that values each person’s unique skills and experiences. Even if you don’t meet every requirement, we’d love to hear from you—you might be just what we’re looking for, whether in this role or another.

✨ Let’s give businesses more time for what matters.

Make your impact within a rapidly growing Fintech Company

The Card Servicing Team manages and optimizes card-related services within the Spend and Expense platform. Their responsibilities include enhancing payment experiences, managing delinquency, improving bank accounts, and working on billing cycles. They collaborate with various teams to ensure seamless communication and use data-driven insights to guide their design decisions. Additionally, they focus on user-centric design and oversee the entire design process from research to implementation.

We’d love to chat if you have:

BS/MS in Computer Science or a related field
8+ years of software development or 6+ years of experience with Masters in relevant field
Experience working on large scale, complex applications using Java, AWS, and modern JS frameworks
Experience working with REST API development
Familiarity with databases (ElasticSearch, MySQL, Oracle or any Cloud DB)
Expertise with using AWS services to build microservices
Ability to challenge the norm and develop microservices from a monolith

Nice to Have:

Expertise with using AWS to build services
Test Driven Development (TDD) methodology, functional programming style. Playwright or Cypress testing experience a bonus
Experience with dev tools like Splunk, Datadog, Mixpanel, LaunchDarkly etc.

#LI

The estimated salary range for this role is noted below for our San Jose based role. Our ranges for each role and job level are based on a variety of factors including candidate experience, expertise, and geographic location and may vary from the amounts listed above. The role is also eligible for a competitive benefits package that includes: medical, dental, vision, life and disability insurance, 401(k) retirement plan, flexible spending & health savings account, paid holidays, paid time off, and other company benefits.

San Jose pay range

$177,300—$212,700 USD

The estimated base salary range for this role is noted below for our office location in Draper, UT. Additionally, this role is eligible to participate in BILL’s bonus and equity plan. Our ranges for each role and job level are based on a variety of factors including candidate experience, expertise, and geographic location and may vary from the amounts listed above. The role is also eligible for a competitive benefits package that includes: medical, dental, vision, life and disability insurance, 401(k) retirement plan, flexible spending & health savings account, paid holidays, paid time off, and other company benefits.

Draper UT pay range

$150,700—$180,800 USD

What’s in it for you?

Redefining how businesses automate their work is a fast-paced, exciting, and fun environment. But we also have benefits and perks to ensure the magic isn’t only experienced by our customers, but by our employees as well.

Here is a preview of some of the amazing benefits here at BILL:

100% paid employee health, dental, and vision plans (choose HMO, PPO, or HDHP)
HSA & FSA accounts
Life Insurance, Long & Short-term disability coverage
Employee Assistance Program (EAP)
11+ Observed holidays and wellness days and flexible time off
Employee Stock Purchase Program with employee discounts
Wellness & Fitness initiatives
Employee recognition and referral programs
And much more

Don’t believe us? Check out our culture, benefits, and teams on our career site, LinkedIn Life, or YouTube pages.

BILL is an Equal Opportunity Employer that values diversity and inclusion. We believe our best ideas come from the unique stories, perspectives, and experiences of our team members. We welcome people of all backgrounds, abilities, and identities to bring their authentic selves and contribute to our culture.

We are committed to a transparent, inclusive hiring process that reflects our values. If you need accommodations at any stage, please contact interviewaccommodations@hq.bill.com.

Our Applicant Privacy Notice describes how BILL treats the personal information it receives from applicants.

Average salary estimate

$165750 / YEARLY (est.)

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$150700K

$180800K

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What You Should Know About Staff Software Engineer - Backend Architecture, BILL

At BILL, we're on a mission to empower businesses by transforming outdated financial processes into innovative solutions. As a Staff Software Engineer specializing in Backend Architecture, you'll play a pivotal role in this journey. Working from our office in Draper, Utah, or remotely, you'll collaborate with a dynamic team dedicated to driving real impact for users in the fast-paced realm of financial automation. Your expertise in large-scale applications, particularly with Java, AWS, and modern JavaScript frameworks, will be invaluable. You'll work on optimizing our Spend and Expense platform, enhancing payment experiences, and managing card-related services effectively. We value diversity and creativity, and our collaborative culture means your ideas will always have a place. At BILL, continuous growth and a passion for problem-solving are part of our ethos. If you thrive in an environment that challenges the norm and pushes for innovation, we want to hear from you!

Frequently Asked Questions (FAQs) for Staff Software Engineer - Backend Architecture Role at BILL

What are the key responsibilities of a Staff Software Engineer at BILL?

As a Staff Software Engineer - Backend Architecture at BILL, your primary responsibilities will include enhancing and optimizing card-related services within our Spend and Expense platform, collaborating with cross-functional teams on design decisions, and applying data-driven insights to ensure a user-centric approach. You'll also focus on building microservices and improving payment experiences, making it vital to have experience with large-scale applications and AWS services.