Principal Applied Scientist
Location: On-Site, San Mateo, CA

Job Description:

Make more Creative Job Post Content< Principal Applied Scientist

 - Responsibilities:

At Xero, we believe small businesses are the backbone of the global economy. Our mission is to make their lives easier, empower their advisors, and help them thrive. As a Principal Applied Scientist, you’ll play a pivotal role in shaping the future of our AI-powered products that reduce complexity, deliver meaningful insights, and empower millions of small businesses worldwide.

This is your chance to blend cutting-edge research, hands-on development, and leadership in a collaborative, purpose-driven environment where you’ll build AI solutions that truly make a difference.


What You’ll Be Doing

  • Lead the Charge: Drive the scientific vision behind Xero’s AI products, balancing innovation with practical delivery to achieve groundbreaking results.
  • Solve Hard Problems: Work with cross-functional teams to tackle complex challenges, applying cutting-edge ML and AI methods to real-world business problems.
  • Collaborate and Scale: Partner with ML engineers to ensure scalable, maintainable solutions that minimize technical debt.
  • Set the Standard: Share your expertise, mentor colleagues, and raise the bar for scientific rigor and technical excellence within the team.
  • Shape the Industry: Build Xero’s profile as a leader in AI by representing the company at events, sharing thought leadership, and publishing groundbreaking work.

What You’ll Bring to the Team

  • Deep Expertise: 5+ years of experience delivering customer-facing ML/AI products at scale.
  • Problem-Solving Passion: You’re energized by hard problems and drawn to impactful challenges.
  • Hands-On Skills: Expert in one or more areas like time series forecasting, natural language processing, classical ML, or deep learning.
  • Software Craftsmanship: Skilled in Python, Scala, or similar, and committed to writing high-quality, production-ready code.
  • Adaptability: Able to read and implement research papers while aligning solutions to real-world business needs.
  • Communication Wizardry: Translate complex technical concepts into actionable insights for business and technical stakeholders.

Why Join Xero?

At Xero, human-first values define everything we do. We believe that when small businesses succeed, the world is a better place—and the same goes for our people.

Here’s What We Offer You

  • Generous Leave Policies: Use your paid leave however you’d like, plus additional leave for physical and mental well-being.
  • Family Support: 26 weeks of paid parental leave for primary caregivers, fertility and family-forming financial assistance, and more.
  • Health and Well-Being: Comprehensive medical, dental, and vision insurance, disability coverage, employee assistance programs, and wellness allowances.
  • Flexibility and Balance: Flexible work arrangements, beautiful offices with stocked snacks, and a culture that prioritizes work-life harmony.
  • Career Development: Robust opportunities to learn, grow, and lead in a supportive, purpose-driven environment.
  • Ownership: Participate in Xero’s Employee Share Plan and help shape the future of small business technology.


Key Skills:

  • Principal Applied Scientist