Software Engineer - Product, Network, and AI

Overview

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 By replacing outdated financial processes with innovative tools, we help businesses—from startups to established brands—make smarter decisions and gain control of their operations. 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.

BILL fosters an inclusive environment and values purpose, drive, and curiosity, with collaboration across offices in San Jose, CA, Draper, UT, or remote work.

BILL builds high performing teams and we seek to hire top talent for every role. We’re committed to building a workplace that fosters inclusion and diverse perspectives, valuing each person’s unique skills and experiences. We’d love to hear from you—whether in this role or another.

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

Make Your Impact Within a Rapidly Growing Fintech Company

Join BILL’s Product, Network, and AI team, where we are reimagining how businesses across the United States pay their suppliers. As a Staff Software Engineer, you will own the design, implementation, and scaling of mission-critical systems that power our Supplier Payments Plus offering, driving measurable gains in efficiency, reliability, and customer satisfaction. In this role, you will tackle complex, high-impact problems in a collaborative, results-driven environment, shaping the future of our platform and advancing our mission to help customers thrive.

• Design, develop, and deploy robust, scalable software solutions that directly drive product growth and user engagement
• Lead technical architecture discussions and set engineering standards for the team, ensuring high-quality, maintainable code
• Collaborate cross-functionally with Product, Design, Data, and Marketing to identify growth opportunities and translate them into technical solutions
• Mentor and guide engineers, fostering a culture of technical excellence, continuous learning, and innovation
• Analyze complex problems, propose effective solutions, and implement best practices to optimize system performance and reliability
• Drive experimentation and rapid iteration, leveraging data to inform decisions and maximize product impact
• Champion BILL’s values by promoting an inclusive, collaborative, and high-performance team environment

• Proven expertise in designing and building scalable, high-impact software products in a fast-paced environment
• Strong technical leadership skills, with experience guiding teams through complex architectural decisions and project delivery
• Excellent collaboration and communication abilities, with a track record of working effectively across disciplines
• A problem-solving mindset, with the ability to break down complex challenges and deliver innovative solutions that align with business goals
• Commitment to fostering an inclusive, growth-oriented team culture

• Bachelor’s in Computer Science or related field (Master’s a plus); typically 8+ years of relevant industry experience
• Strong understanding of large-scale web applications and systems, including operational aspects (deployment, capacity planning, monitoring, incident management)
• Demonstrated ability to reason about trade-offs and collaborate across teams and functions on important technical and business initiatives
• Experience driving technical direction in multi-entity SaaS architectures and working with modern software development lifecycle practices

Proficiency in:

• Modern programming languages such as Java, Typescript/Node.js (typical stack at BILL for supplier and payments platforms)
• React or similar frontend frameworks for UI development and supplier portal enhancements

Cloud & distributed systems experience:

• AWS (Lambda, Dynamo
  
  DB, S3, SNS/SQS, IAM roles and permissions)
• Microservices architecture + API gateway patterns

Testing, monitoring, and documentation tools:

• Unit and integration test frameworks (Jest, PyTest, JUnit, etc.)
• Application monitoring,…