UpstartUP

Staff Applied Machine Learning Engineer, LLM Applications

Upstart is an AI lending platform that partners with banks and credit unions to provide consumer loans using non-traditional variables to predict creditworthiness.

Upstart

Employee count: 1001-5000

Salary: 178k-247k USD

United States only

About Upstart

Upstart is the leading AI lending marketplace partnering with banks and credit unions to expand access to affordable credit. By leveraging Upstart's AI marketplace, Upstart-powered banks and credit unions can have higher approval rates and lower loss rates across races, ages, and genders, while simultaneously delivering the exceptional digital-first lending experience their customers demand. More than 80% of borrowers are approved instantly, with zero documentation to upload.

Upstart is a digital-first company, which means that most Upstarters live and work anywhere in the United States. However, we also have offices in San Mateo, California; Columbus, Ohio; and Austin, Texas.

Most Upstarters join us because they connect with our mission of enabling access to effortless credit based on true risk. If you are energized by the impact you can make at Upstart, we’d love to hear from you!

The Team

Upstart’s new Core GenAI Platform team is building foundational infrastructure that democratizes access to generative AI for every product and engineering team across the company. This is a cross-functional team at the intersection of machine learning, product, and engineering. Our mission is to bring the power of ML - particularly large language models (LLMs) and generative AI - to life in Upstart’s core products.

As a Staff Applied Machine Learning Engineer focused on building LLM applications, you'll work closely with researchers, product managers, platform engineers, and designers to ship intelligent features that elevate the user experience and expand the capabilities of our systems.


Position Location -
This role is available in the following locations: San Mateo, Columbus, Austin, Remote

Time Zone Requirements - This team operates on the East/West Coast time zones.

Travel Requirements -This team has regular on-site collaboration sessions. These occur 3-4 days per Quarter at one of our offices. If you need to travel to make these meetups, Upstart will cover all travel related expenses.

How you’ll make an impact:

  • Design and build user-facing ML features that harness LLMs and generative AI to unlock new product capabilities
  • Partner with product, design, and ML research to prototype and deliver high-impact, ML-powered experiences
  • Own the technical architecture and implementation strategy for applied ML systems - balancing latency, observability, and iteration speed
  • Build scalable services and APIs that bring model outputs to users in trustworthy and intuitive ways
  • Collaborate across platform, infra, and legal/compliance teams to ensure ML deployments meet standards for safety, fairness, and performance
  • Establish and evangelize best practices for prompt design, model evaluation, and experimentation across the org

What we’re looking for:

  • Minimum qualifications:
    • 6+ years of software engineering experience, with 2+ years working directly on ML-driven products or intelligent systems
    • Proven ability to lead complex initiatives across engineering, product, and research stakeholders
    • Strong backend development skills (e.g., Python with FastAPI or Flask), plus experience with cloud-native tooling (e.g., Kubernetes, Docker, Terraform)
    • Experience integrating LLMs or ML models into production systems, including APIs and user-facing applications
    • Excellent communication skills and a collaborative, product-minded approach
    • Ability to think rigorously about system design, latency tradeoffs, and user impact when working with ML features
  • Preferred qualifications:
    • Experience shipping GenAI or LLM-powered features using frameworks like LangChain, LlamaIndex, or OpenAI APIs
    • Familiarity with retrieval-augmented generation (RAG), vector search (e.g., FAISS, Pinecone), and real-time inference patterns
    • Proficiency in full-stack development, including front-end work with React or similar frameworks
    • Strong intuition for prompt engineering, model testing, and evaluation methodologies
    • Experience navigating complex requirements around explainability, user trust, or compliance in ML applications
    • Track record of influencing architecture or product direction at a team or org level

What you'll love:

  • Competitive Compensation (base + bonus & equity)
  • Comprehensive medical, dental, and vision coverage with Health Savings Account contributions from Upstart
  • 401(k) with 100% company match up to $4,500 and immediate vesting and after-tax savings
  • Employee Stock Purchase Plan (ESPP)
  • Life and disability insurance
  • Generous holiday, vacation, sick and safety leave
  • Supportive parental, family care, and military leave programs
  • Annual wellness, technology & ergonomic reimbursement programs
  • Social activities including team events and onsites, all-company updates, employee resource groups (ERGs), and other interest groups such as book clubs, fitness, investing, and volunteering
  • Catered lunches + snacks & drinks when working in offices

At Upstart, your base pay is one part of your total compensation package. The anticipated base salary for this position is expected to be within the below range. Your actual base pay will depend on your geographic location–with our “digital first” philosophy, Upstart uses compensation regions that vary depending on location. Individual pay is also determined by job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process.

In addition, Upstart provides employees with target bonuses, equity compensation, and generous benefits packages (including medical, dental, vision, and 401k).

United States | Remote - Anticipated Base Salary Range$178,400—$246,800 USD

Upstart is a proud Equal Opportunity Employer. We are dedicated to ensuring that underrepresented classes receive better access to affordable credit, and are just as committed to embracing diversity and inclusion in our hiring practices. We celebrate all cultures, backgrounds, perspectives, and experiences, and know that we can only become better together.

If you require reasonable accommodation in completing an application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please email [email protected]

https://www.upstart.com/candidate_privacy_policy

About the job

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Job type

Full Time

Experience level

Mid-level
Senior

Salary

Salary: 178k-247k USD

Location requirements

Hiring timezones

United States +/- 0 hours

About Upstart

Learn more about Upstart and their company culture.

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Upstart Holdings, Inc. is a leading artificial intelligence (AI) lending marketplace that partners with banks and credit unions to expand access to affordable credit. Founded in 2012, the company leverages its proprietary AI models and cloud applications to provide superior credit products. Upstart's platform aims to move beyond traditional FICO scores by incorporating non-traditional variables such as education and employment to assess creditworthiness more accurately. This innovative approach allows lenders to approve more borrowers at lower rates across various demographics, including races, ages, and genders, while simultaneously delivering an exceptional, digital-first lending experience that customers demand. More than 80% of borrowers are approved instantly, often with no documentation required to upload.

The company's platform includes a range of loan products, such as personal loans, automotive retail and refinance loans, home equity lines of credit (HELOCs), and small-dollar 'relief' loans. Upstart's technology automates various aspects of the lending process, including identity verification, fraud detection, and income and employment verification, resulting in an efficient and user-friendly experience for both borrowers and lending partners. Over 92% of loans facilitated through the Upstart platform are fully automated, requiring no human intervention from Upstart. The company is committed to fair lending practices and has developed a robust fairness testing framework to evaluate its models for bias. Upstart also provides tools like the Upstart Macro Index (UMI) to help its lending partners understand and account for the impact of macroeconomic conditions on credit performance. Headquartered in San Mateo, California, Upstart operates as a digital-first company with most employees working remotely across the United States, though it also maintains physical offices in Columbus, Ohio, and Austin, Texas.

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Upstart hiring Staff Applied Machine Learning Engineer, LLM Applications • Remote (Work from Home) | Himalayas